Jason DeJong

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Publications

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Reviewed Journals

  1. Zettler, T.E., Frost, J.D., and DeJong, J.T. “Shear Induced Changes in Geomembrane Surface Topography” Geosynthetics International, 2000, Vol. 7, No. 3, pp. 243-267.
  2. DeJong, J.T., Frost, J.D., Cargill, P.E. “Effect of Surface Texturing on CPT Friction Sleeve Measurements” American Society of Civil Engineers, Journal of Geotechnical and Geoenvironmental Engineering, 2001, Vol. 127, No. 2, pp. 158-168.
  3.  DeJong, J.T and Frost, J.D. “A Multisleeve Friction Attachment for the Cone Penetrometer” American Society for Testing and Materials, Journal of Geotechnical Testing, 2002, Vol. 25, No. 2, pp. 111-127.
  4.  DeJong, J.T., Frost, J.D., Saussus, D.R. “Measurement of Relative Surface Roughness at Particulate-Continuum Interfaces” American Society for Testing and Materials, Journal of Testing and Evaluation, 2002, Vol. 30, No. 1, pp. 8-19.
  5.  Frost, J.D., DeJong, J.T., and Recalde, M. “Shear Failure Behavior of Granular-Continuum Interfaces” Engineering Fracture Mechanics, 2002, Vol. 69, No. 17, pp. 2029-2048.
  6. Frost, J.D., Zettler, T.E., DeJong, J.T., Lee, S.W., and Kagbo, S. “Strain Induced Changes in Geomembrane Surface Topography” Geosynthetics International, 2002, Vol. 9, No. 1, pp. 21-20.
  7. DeJong, J.T., Randolph, M.F., and White, D.J. “Interface Load Transfer Degradation During Cyclic Loading: A Microscale Investigation” Soils and Foundations, 2003, Vol. 43, No. 4, pp. 81-94.
  8. Saussus, D.R., Frost, J.D., and DeJong, J.T. “Statistical Analysis of Friction Sleeve Length Effects on Soil Classification” International Journal of Numerical and Analytical Methods in Geomechanics, 2004, Vol. 28, No. 12, pp. 1257-1278.
  9. Frost, J.D. and DeJong, J.T. “In Situ Assessment of Role of Surface Roughness on Interface Response” ASCE Journal of Geotechnical and Geoenvironmental Engineering, 2005, Vol. 131, No. 4, pp. 498-511.
  10. Frost, J.D., DeJong, J.T., and Saussus, D.R. “Analytical Investigation of Friction Sleeve Length Effects on Stratigraphic Interpretation” American Society of Civil Engineers, International Journal of Geomechanics, 2006, Vol. 6, No. 1, pp. 11-29.
  11. DeJong, J.T. and Westgate, Z.J. “Role of Overconsolidation on Sand-Geomembrane Interface Response and Material Damage Evolution” Geotextiles and Geomembranes, 2005, Vol. 23, pp. 486-512.
  12. DeJong, J.T., White, D.J., and Randolph, M.F. “Microscale Observation and Modelling of Soil-Structure Interface Behavior Using Particle Image Velocimetry” Soils and Foundations, 2006, Vol. 46, No. 1, pp. 15-28.
  13. DeJong, J.T., Fritzges, M.B., and Nüsslein, K. “Microbial Induced Cementation to Control Sand Response to Undrained Shear” ASCE Journal of Geotechnical and Geoenvironmental Engineering, 2006, Vol. 132, No. 11, pp. 1381-1392.
  14. Civjan, S., Bonczar, C., Breña, S.F., DeJong. J.T., and Crovo, D.  “Integral Abutment Bridge Behavior: Parametric Analysis of a Massachusetts Bridge” ASCE Journal of Bridge Engineering, 2006, Vol. 21, No. 1, pp. 64-74.
  15. Ostendorf, D.W., Hinlein, E.S., Ahlfeld, D.P., and DeJong, J.T. “Calibrated Models of Deicing Agent Solids, Pavement Texture, and Specific Conductivity of Highway Runoff” American Society of Civil Engineers, Journal of Environmental Engineering, 2006, Vol. 132, No. 12, pp. 1562-1571.
  16. DeJong, J.T., Yafrate, N.J., and Don. J. DeGroot. “Development of a Miniature Piezoprobe for High Resolution Detection of Stratigraphic Interfaces” ASTM Geotechnical Testing Journal, 2007, Vol. 30, No. 4, pp. 1-11.
  17. Breña, S. F., Bonczar, C., Civjan, S.A., DeJong, J.T., and Crovo, D.S. “Evaluation of Seasonal and Yearly Behavior of an Integral Abutment Bridge” ASCE Journal of Bridge Engineering, 2007, Vol. 12, No. 3, pp. 296-305.
  18. DeJong, J.T. and Christoph, G.G. “Influence of Particle Properties and Initial Specimen State on 1-D Compression and Hydraulic Conductivity at High Stress Levels” ASCE Journal of Geotechnical Engineering, 2009, Vol. 135, No. 3, pp. 449-454.
  19. DeJong, J.T. and Westgate, Z.J. “Role of Initial State, Material Properties, and Confinement Condition on Local and Global Soil-Structure Interface Behavior” ASCE Journal of Geotechnical and Geoenvironmental Engineering, 2009, Vol. 135, No. 11, pp. 1646-1660.
  20. Yafrate, N.J., DeJong, J.T., DeGroot, D.J., and Randolph, M.R. “Evaluation of Remolded Shear Strength and Sensitivity of Soft Clay using Full-Flow Penetrometers”, ASCE Journal of Geotechnical and Geoenvironmental Engineering, 2009, Vol. 135, No. 9, pp. 1179-1189.
  21. DeJong, J.T., Mortensen, B.M., Martinez, B.C., and Nelson, D.C.  “Bio-Mediated Soil Improvement” Ecological Engineering, 2010, Vol. 36, pp. 197-210.
  22. DeJong, J.T., Yafrate, N.J., DeGroot, D.J., Lo, H.E., and Randolph, M.F. “Recommended Practice for Full-Flow Penetrometer Testing and Analysis”, ASTM Geotechnical Testing Journal, 2010, Vol. 33, No. 2, pp. 137-149.
  23. Armstrong, R.A., DeJong, J.T., and Yafrate, N.J. “Engaging students with diverse learning styles in large, media-intensive engineering classes using an integrated Tablet PC – Classroom Communication System Platform” Electronic Journal of Geotechnical Engineering, 2010, Vol. 15H, pp. 773-794.
  24. DeJong, J.T., Yafrate, N.J., DeGroot, D.J., and Randolph, M.F.  “Evaluation of Undrained Shear Strength Using Full-Flow Penetrometers”, ASCE Journal of Geotechnical and Geoenvironmental Engineering, 2011, Vol. 137, No. 1, pp. 14-26.
  25. DeJong, J.T., Soga, K., Banwart, S.A., Whalley, W.R., Ginn, T., Nelson, D.C. Mortensen, B.M., Martinez, B.C., Barkouki, T. “Soil Engineering In-vivo: Harnessing Natural Biogeochemical Systems for Sustainable, Multi-Functional Engineering Solutions”, J. Royal Society Interface, 2011, Vol. 8, pp. 1-15.
  26. Tagliaferri, F., Waller, J., Ando, E., Hall, S.A., Viggiani, G., Besuelle, P., and DeJong, J.T. “Observing Strain Localisation Processes in Bio-cemented Sand using X-ray Imaging” Granular Matter, 2011, Vol. 13, pp. 247-250.
  27. Mortensen, B.M., Haber, M.J., DeJong, J.T., Caslake, L.F., and Nelson, D.C. “Effects of Environmental Factors on Microbial Induced Calcium Carbonate Precipitation” Applied Microbiology, 2011, Vol. 111, Issue 2, pp. 338-349.
  28. Barkouki, T.H., Martinez, B.C., Mortensen, B.M., Weathers, T.S., DeJong, J.T., Spycher, N.F., Ginn, T.R., Smith, R.W., and Fujita, Y. “Forward and Inverse Bio-Geochemical Modeling of Microbially Induced Calcite Precipitation in Half-Meter Column Experiments” Transport in Porous Media, 2011, Vol. 90, pp. 23-39, DOI:10.1007/s11242-011-9804-z.
  29. DeJong, J., Randolph, M., DeGroot, D., and Yafrate, N. ”Closure to “Evaluation of Remolded Shear Strength and Sensitivity of Soft Clay Using Full-Flow Penetrometers” ASCE J. Geotech. Geoenviron. Eng., 2011, Vol. 137, No. 4, pp. 440–441, DOI: 10.1061/(ASCE)GT.1943-5606.0000467
  30. Weil, M.H., J.T. DeJong, B.C. Martinez, B.M. Mortensen, and J.T. Waller “Seismic and Resistivity Measurements for Real-Time Monitoring of Microbially Induced Calcite Precipitation in Sand” ASTM Journal of Geotechnical Testing, 2012, Vol. 35, No. 2, pp. 1-12, DOI: 10.1520/GTJ103365.
  31. DeJong, J.T., DeGroot, D.J., and Yafrate, N.J. “Closure to Discussion of ‘Evaluation of Undrained Shear Strength Using Full-Flow Penetrometers’” ASCE Journal of Geotechnical and Geoenvironmental Engineering, 2012, Vol. 138, No. 6, pp. 765-767, DOI: 10.1061/(ASCE)GT.1943-5606.0000569.
  32. DeJong, J.T. and Randolph, M.F. “Influence of Partial Consolidation during Cone Penetration on Estimated Soil Behavior Type and Pore Pressure Dissipation Measurements” ASCE Journal of Geotechnical and Geoenvironmental Engineering, 2012, Vol. 138, No. 7, pp. 777-788, DOI: 10.1061/(ASCE)GT.1943-5606.0000646.
  33. Montoya, B.M., Gerhard, R., DeJong, J.T., Wilson, D., Weil, M.H., Martinez, B.C., and Pederson, L. “Fabrication, Operation, and Health Monitoring of Bender Elements in Aggressive Environments” ASTM Journal of Geotechnical Testing, 2012, Vol. 35, No. 5, pp. 728-742. DOI: 10.1520/GTJ103300.
  34. Martinez, B.C., DeJong, J.T., Mortensen, B.M., Barkouki, T.H., Ginn, T.R., Hunt, C., Tanyu, B., Major, D. “Experimental Optimization of Microbial Induced Carbonate Precipitation” ASCE Journal of Geotechnical and Geoenvironmental Engineering, 2013,  139(4), 587–598
  35. Montoya, B.M., DeJong, J.T., and Boulanger, R.W. “Dynamic Response of Liquefiable Sand Improved by Microbial Induced Calcite Precipitation” Geotechnique, 2013, Vol. 63, No. 4, pp. 302-312
  36. DeJong, J.T., Soga, K.S., Kavazanjian, E., Burns, S., van Paassen, L., Al Qabany, A., Aydilek, A., Bang, S.S., Burbank, M., Caslake, L., Chen, C.Y., Cheng, X., Chu, J., Ciurli, S., Fauriel, S., Filet, A.E., Hamdan, N., Hata, T., Inagaki, Y., Jefferis, S., Kuo, M., Laloui, L., Larrahondo, J., Manning, D.A.C., Martinez, B., Montoya, B.M., Nelson, D.C., Palomino, A., Renforth, P., Santamarina, J.C., Seagren, E.A., Tanyu, B., Tsesarsky, M., Weaver, T. “Biogeochemical Processes and Geotechnical Applications: Progress, Opportunities, and Challenges” Geotechnique, 2013, Vol. 63, No. 4, pp. 287-301.
  37. Montoya, B.M. and DeJong, J.T. “Healing of biologically induced cemented sands”, Geotechnique Letters, 2013, Vol. 3, pp. 147-151.
  38. Martinez, B.C., DeJong, J.T., and Ginn, T.R. “Bio-geochemical reactive transport modeling of microbial induced calcite precipitation to predict the treatment of sand in one-dimensional flow” Computers and Geotechnics, 2014, Vol. 58, pp. 1-13.
  39. Bernardi, D., DeJong, J.T., Montoya, B.M., and Martinez, B.C. “Bio-bricks: Biologically cemented sandstone bricks” Construction and Building Materials, 2014, Vol. 55, pp. 462-469.
  40. Ghafghazi, M., Shuttle, D.A., and DeJong, J.T. “Particle Breakage and the Critical State of Sand” Soils and Foundations, 2014, Vol. 54, No. 3, pp. 451-461.
  41. Gomez, M.G., Martinez, B.C., DeJong, J.T., Hunt, C.E., deVlaming, L.A., Major, D.W., and Dworatzek, S.M. “Field Scale Bio-cementation Tests to Improve Sands”, Ground Improvement, 2014, 11 pgs.
  42. Maki, I., Boulanger, R.W., DeJong, J.T., and Jaeger, R. “State-based Overburden Normalization of Cone Penetration Resistance in Clean Sand”, ASCE J. Geotechnical and Geoenvironmental Engineering, 2014, Vol. 140, No. 2, http://dx.doi.org/10.1061/(ASCE)GT.1943-5606.0001020.
  43. Dahl, K. R., DeJong, J. T., Boulanger, R. W., Pyke, R., and Wahl, D. “Characterization of an alluvial silt and clay deposit for monotonic, cyclic and post-cyclic behavior” Canadian Geotechnical Journal, 2014, Vol. 51, pp. 432-440, http://dx.doi.org/10.1139/cgj-2013-0057.
  44. DeJong, J.T., Martinez, B.C., Ginn, T.R., Hunt, C.E., Major, D.W., and Tanyu, B. “Development of A Scaled Repeated Five-Spot Treatment Model for Examining Microbial Induced Calcite Precipitation Feasibility in Field Applications” ASTM Geotechnical Testing Journal, 2014, Vol. 37, No. 3, pp. 1-12, doi:10.1520/GTJ20130089.
  45. DeJong, J.T., Tibbett, M., and Fourie, A. “Geotechnical Systems that Evolve with Ecological Processes”  Environmental Earth Sciences, 2014, DOI 10.1007/s12665-014-3460-x.
  46. DeJong, J.T., Ghafghazi, M., Sturm, A., Armstrong, R., Perez, A., and Davis, C. “A New Instrumented Becker Penetration Test (iBPT) for Improved Characterization of Gravelly Deposits Within and Underlying Dams, 2014, The Journal of Dam Safety, Vol., 12, No. 2, pp. 9-19.
  47. Klar, A. Pinkert, S. and DeJong, J.T. “Evaluation of the soil strength rate parameter using full-flow penetrometers”, ICE Geotechnical Research, 2014, Vol. 1, Iss. 2, pp. 53-59.
  48. Krage, C.P., DeJong, J.T., and Schnaid, F. “Estimation of the Coefficient of Consolidation from Incomplete CPT Dissipation Tests”, ASCE J. Geotechnical and Geoenvironmental Engineering, 2015, Vol. 141, No. 2, 6 pp.
  49. Montoya, B.M. and DeJong, J.T. “Stress-Strain Behavior of Sands Cemented by Microbially Induced Calcite Precipitation”, ASCE J. Geotechnical and Geoenvironmental Engineering, 2015, 10.1061/(ASCE)GT.1943-5606.0001302.
  50. Park, D.S., Kutter, B.L., and DeJong, J.T. “Effects of Thixotropy and Cement Content on Sensitivity of Soft Remolded Clay”, ASCE J. Geotechnical and Geoenvironmental Engineering, 2015, Vol. 141, No. 2, http://dx.doi.org/10.1061/(ASCE)GT.1943-5606.0001221
  51. Dumlao, M.R., Ramananarivo, S., Goyal, V., DeJong, J.T., Waller, J., and Silk, W.K. “The role of root development of Avena fatua in conferring soil strength”, American Journal of Botany, 2015, Vol. 102, No. 7, pp. 1050-1060.
  52. Hoyos, L.R., DeJong, J.T., McCartney, J.S., Puppala, A.J., Reddy, K.R., and Zekkos, D. “Environmental geotechnics in the US region: a brief overview”, ICE Environmental Geotechnics, 2015, 7 pp.
  53. Proto, C.J., DeJong, J.D., Nelson, D.C., and Sturm, A.P. “Bio-Mediated Permeability Reduction of Saturated Sands”, ASCE J. Geotechnical and Geoenvironmental Engineering, 2016, https://doi.org/10.1061/(ASCE)GT.1943-5606.0001558.
  54. Krage, C.P. and DeJong, J.T. “Influence of Drainage Conditions during Cone Penetration on the Estimation of Engineering Properties and Liquefaction Potential of Silty and Sandy Soils”, ASCE J. Geotechnical and Geoenvironmental Engineering, 2016, https://doi.org/10.1061/(ASCE)GT.1943-5606.0001543.
  55. DeJong, J.T., Sturm, A., Ghafghazi, M. “Characterization of Gravelly Alluvium”, Soil Dynamics and Earthquake Engineering, 2016, 91: 104–115, https://doi.org/10.1016/j.soildyn.2016.09.032.
  56. Boulanger, R.W., Moug, D.M., Munter, S.K., Price, A.B., and DeJong, J.T. “Evaluating liquefaction and lateral spreading in interbedded sand, silt, and clay deposits using the cone penetrometer”, Australian Geomechanics, 2016, Vol. 51, No. 4, pp., 109-128.
  57. DeJong, J.T., Ghafghazi, M., Sturm, A.P., Wilson, D.W., den Dulk, J., Armstrong, R.J., Perez, A., and Davis, C.A. “Instrumented Becker Penetration Test, I: Equipment, Operation, and Performance”, ASCE J. Geotechnical and Geoenvironmental Engineering, 2017, https://doi.org/10.1061/(ASCE)GT.1943-5606.0001717.
  58. Ghafghazi M, DeJong JT, Sturm AP, Temple CE. “Instrumented Becker Penetration Test, II: iBPT- SPT correlation for liquefaction assessment in gravelly soils”, ASCE J. Geotechnical and Geoenvironmental Engineering, 2017, https://doi.org/10.1061/(ASCE)GT.1943-5606.0001718.
  59. Gomez, M.G., Anderson, C.M., DeJong, J.T., Nelson, D.C., Graddy, C.M., and Ginn, T.R. “Large-scale Comparison of Bioaugmentation and Biostimulation Approaches for Bio-cementation of Sands”, ASCE J. Geotechnical and Geoenvironmental Engineering, 2017, https://doi.org/10.1061/(ASCE)GT.1943-5606.0001640. 
  60. Kuei, C.K., Ghafghazi, M., and DeJong, J.T. “Pile Driving Mechanics at the Base as Informed by Direct Measurements”, ASCE J. Geotechnical and Geoenvironmental Engineering, 2017, https://doi.org/10.1061/(ASCE)GT.1943-5606.0001746. 
  61. Ghafghazi M, DeJong JT, Wilson, D. “Review of Becker Penetration Test Interpretation Methods for Liquefaction Assessment in Gravelly Soils”, Canadian Geotechnical Journal, 2017, 54(9): 1272-1283, https://doi.org/10.1139/cgj-2016-0413.
  62. Price, A.B., DeJong, J.T., Boulanger, R.W. “Cyclic Loading Response of Silt with Multiple Loading Events”, ASCE J. Geotechnical and Geoenvironmental Engineering, 2017, https://doi.org/10.1061/(ASCE)GT.1943-5606.0001759.
  63. Kendall, A., Raymond, A.J., Tipton, J., and DeJong, J.T. “Review of life-cycle-based environmental assessments of geotechnical systems”, ICE Engineering Sustainability, 2017, http://dx.doi.org/10.1680/jensu.16.00073.
  64. Nassar, M.K., Gurung, D., Bastani, M., Ginn, T.R., Shafei, B., Gomez, M.G., Graddy, C.M.R., Nelson, D.C., and DeJong, J.T. “Large-Scale Experiments in Microbially Induced Calcite Precipitation (MICP): Reactive Transport Model Development and Prediction”, Water Resources Research, 2018, https://doi.org/10.1002/2017WR021488.
  65. Dienstmann, G., Schnaid, F., Maghous, S., and DeJong, J.T. “Piezocone penetration rate effects in transient gold tailings”, ASCE J. Geotechnical and Geoenvironmental Engineering, 2018, https://doi.org/10.1061/(ASCE)GT.1943-5606.0001822.
  66. Lukas, W.G., DeGroot, D.J., DeJong, J.T., Krage, C.P., Zhang, G. “Undrained Shear Behavior of Low-Plasticity Intermediate Soils Subjected to Simulated Tube-Sampling Disturbance”, ASCE J. Geotechnical and Geoenvironmental Engineering, 2018, https://doi.org/10.1061/(ASCE)GT.1943-5606.0001967.
  67. Gomez, M.G., Graddy, C.M.R., DeJong, J.T., Nelson, D.C., and Tsesarsky, M. “Stimulation of Native Microorganisms for Biocementation in Samples Recovered from Field-Scale Treatment Depths”, ASCE J. Geotechnical and Geoenvironmental Engineering, 2018, https://doi.org/10.1061/(ASCE)GT.1943-5606.0001804. 
  68. DeJong, J.T., Krage, C.P., Albin, B.M., and DeGroot, D.J. “Work-Based Framework for Sample Quality Evaluation of Low Plasticity Soils”, ASCE J. Geotechnical and Geoenvironmental Engineering, 2018, https://doi.org/10.1061/(ASCE)GT.1943-5606.0001941.
  69. Gomez, M.G., DeJong, J.T., and Anderson, C.M. “Effect of bio-cementation on geophysical and cone penetration measurements in sands”, Canadian Geotechnical Journal, 2018, Vol. 55: p. 1632-1646, https://doi.org/10.1139/cgj-2017-0253.
  70. Graddy, C.M.R., Gomez, M.G., Kline, L.M., Morrill, S.R., DeJong, J.T., and Nelson, D.C. “Diversity of Sporosarcina-like Bacterial Strains Obtained from Meter-Scale Augmented and Stimulated Biocementation Experiments”, Environmental Science and Technology, 2018, 52(7):3997-4005. doi: 10.1021/acs.est.7b04271.
  71. Moug, D., Boulanger, R.W., DeJong, J.T., and Jaeger, R. “Axisymmetric Simulations of Cone Penetration in Saturated Clay”, ASCE J. Geotechnical and Geoenvironmental Engineering, 2019, https://doi.org/10.1061/(ASCE)GT.1943-5606.0002024.
  72. Darby, K.M., Boulanger, R.W., DeJong, J.T., Bronner, J.D. “Progressive changes in liquefaction and cone penetration resistance across multiple shaking events in centrifuge tests”, ASCE J. Geotechnical and Geoenvironmental Engineering, 2019, https://doi.org/10.1061/(ASCE)GT.1943-5606.0001995.
  73. Wang, Y., Soga, K., DeJong, J.T., and Kabla, A.J. “A microfluidic chip and its use in characterising the particle-scale behaviour of Microbial-Induced Calcium Carbonate Precipitation (MICP)”, Geotechnique, 2019, https://doi.org/10.1680/jgeot.18.P.031.  
  74. Darby, K.M., Hernandez, G.L., DeJong, J.T., Boulanger, R.W., Wilson, D.W., and Gomez, M.G. “Centrifuge model testing of liquefaction mitigation via microbially induced calcite precipitation”, ASCE J. Geotechnical and Geoenvironmental Engineering, 2019, https://doi.org/10.1061/(ASCE)GT.1943-5606.0002122.
  75. Boulanger, R.W., Munter, S.K., Krage, C.P., and DeJong, J.T., “Liquefaction Evaluation for an Interbedded Soil Deposit: Çark Canal in the 1999 M7.5 Kocaeli Earthquake”, ASCE J. Geotechnical and Geoenvironmental Engineering, 2018, DOI: 10.1061/(ASCE)GT.1943-5606.0002089.
  76. Wang, Y., Soga, K., DeJong, J.T., and Kabla, A.J. “Micro-scale visualization of Microbial-Induced Calcium Carbonate Precipitation (MICP) processes”, ASCE J. Geotechnical and Geoenvironmental Engineering, 2019, https://doi.org/10.1061/(ASCE)GT.1943-5606.0002079.
  77. Martinez, A., DeJong, J.T., Jaeger, R.A., and Khosravi, A. “Evaluation of Self-Penetration Potential of a Bio-Inspired Site Characterization Probe by Cavity Expansion Analysis”, Canadian Geotechnical Journal, https://doi.org/10.1139/cgj-2018-0864 (published online).
  78. Moug, D.M., Price, A.B., Parra-Bastidas, A.M., Darby, K.M., Boulanger, R.W., and DeJong, J.T. “Mechanistic Development of CPT-based Cyclic Strength Correlations for a Clean Sand”, ASCE J. Geotechnical and Geoenvironmental Engineering, 2019, DOI: 10.1061/(ASCE)GT.1943-5606.0002101 (in press).
  79. Gomez, M.G., Graddy, C.M.R., DeJong, J.T., and Nelson, D.C. “Biogeochemical Changes During Bio-cementation Mediated by Stimulated and Augmented Ureolytic Microorganisms”, Scientific Reports, (2019) 9:11517 | https://doi.org/10.1038/s41598-019-47973-0 (in press)
  80. Darby, K.M, Boulanger, R.W., and DeJong, J.T. “Effect of partial drainage on cyclic strengths of saturated sands in dynamic centrifuge tests”, ASCE J. Geotechnical and Geoenvironmental Engineering, 2019, https://doi.org/10.1061/(ASCE)GT.1943-5606.0002085 (in press).
  81. Price, A.B., Boulanger, R.W., DeJong, J.T. “Centrifuge Modelling of Variable Rate Cone Penetration in Low-plasticity Silts”, ASCE J. Geotechnical and Geoenvironmental Engineering, 2019, https://doi.org/10.1061/(ASCE)GT.1943-5606.0002145 (in press).
  82. Raymond, A.J., Tipton, J.R., Kendall, A., and DeJong, J.T. “Review of Impact Categories and Environmental Indicators for Life Cycle Assessment of Geotechnical Systems”, Journal of Industrial Ecology, 2018 (in press).
  83. Krage, C.P., Price, A.B., Lukas, W.G., DeJong, J.T., DeGroot, D.J., and Boulanger, R.W. “Slurry deposition method of low plasticity intermediate soils for laboratory element testing”, ASTM Geotechnical Testing Journal, 2018 (in press).
  84. Lee, M., Gomez, M.G., San Pablo, A.C., Kolbus, C.M., Graddy, C.M, DeJong, J.T., and Nelson, D.C. “Investigating Ammonium By-product Removal for Ureolytic Bio-cementation Using Meter- Scale Experiments.” Nature Scientific Reports, 2019, 9(1):1-15.
  85. Khosravi, A., Martinez, A., and DeJong, J.T. “Discrete Element Model (DEM) Simulations of Cone Penetration Test (CPT) Measurements and Soil Classification.” Canadian Geotechnical Journal, 2020, 57(9):1369-1387.
  86. Moug, D.M., Boulanger, R.W., DeJong, J.T., and Jaeger, R.A. “Closure to: Axisymmetric Simulations of Cone Penetration in Saturated Clay.”, ASCE JGGE, 2020, 146(4):07020005.
  87. Boulanger, R.W., Wilson, D.W., Kutter, B.L., DeJong, J.T., and Bronner, C.E. “NHERI Centrifuge Facility: Large-Scale Centrifuge Modeling in Geotechnical Research.” Frontiers in Built Environment, 2020, 6(121).
  88. Kuei, K.C., DeJong, J.T., and Ghafghazi, M. “Prediction, Performance, and Uncertainty in Dynamic Pile Load Testing as Informed by Direct Measurements from an Instrumented Becker Penetration Test.” ASCE JGGE, 2020, 146(8):04020067.
  89. Paul, N.A., Boulanger, R.W., and DeJong, J.T. “Accounting for Spatial Variability in Nonlinear Dynamic Analyses of Embankment Dams on Liquefiable Deposits.” ASCE JGGE, 2020, 146(11): 04020124.
  90. San Pablo, A.C.M., Lee, M., Graddy, C.M.R., Kolbus, C.M., Khan, M., Zamani, A., Martin, N., Acuff, C., DeJong, J.T., Gomez, M.G., and Nelson, D.C. “Meter-scale biocementation experiments to advance process control and reduce impacts: examining spatial control, ammonium by-product removal, and chemical reductions.” ASCE JGGE, 2020, 146(11):04020125.
  91. Burrall, M., DeJong, J.T., Martinez, A., and Wilson, D.W. “Vertical pullout tests of orchard trees for bio-inspired engineering of anchorage and foundation systems.” Bioinspiration & Biomimetics, 2020, 16(1): 016009.
  92. Raymond, A.J., Kendall, A., DeJong, J.T., Kavazanjian, E., and Woolley, M.A. “Life Cycle Sustainability Assessment of Fugitive Dust Control Methods.” ASCE Journal of Construction Engineering and Management, 2021, 147(3):04020181.
  93. Martinez, A., DeJong, J., Akin, I., Aleali, A., Arson, C., Atkinson, J., Bandini, P., Baser, T., Borela, R., Boulanger, R., Burrall, M., Chen, Y., Collins, C.,, Cortes, D., Dai, S., DeJong, T., Del Dottore, E., Dorgan, K., Fragaszy, R., Frost, D., Full, R., Ghayoomi, M., Goldman, D., Gravish, N., Guzman, I.L., Hambleton, J., Hawkes, E., Helms, M., Hu, D., Huang, L., Huang, S., Hunt, C., Irschick, D., Lin, H.T., Lingwall, B., Marr, A., Mazzolai, B., McInroe, B., Murthy, T., O’Hara, K., Porter, M., Sadek, S., Sanchez, M., Santamarina, C., Shao, L., Sharp, J., Stuart, H., Stutz, H.H., Summers, A., Tao, J., Tolley, M., Treers, L., Turnbull, K., Valdes, R., van Passen, L., Viggiani, G., Wilson, D., Wu, W., Yu, X., and Zheng, J. “Bio-inspired geotechnical engineering: principles, current work, opportunities and challenges.” Géotechnique, 2021, 72(8):687-705. 
  94. Wang, Y., Soga, K., DeJong, J.T., and Kabla, A.J. “Effects of Bacterial Density on Growth Rate and Characteristics of Microbial-Induced  Precipitates: Particle-Scale Experimental Study.” ASCE JGGE, 2021, 147(6):04021036.
  95. Chen, Y., Khosravi, A., Martinez, A., and DeJong J.T. “Modeling the self-penetration process of a bio-inspired probe in granular soils.” Bioinspiration & Biomimetics, 2021, 16(4):046012.
  96. Graddy, C.M.R., Gomez, M.G., DeJong, J.T., and Nelson, D.C. “Native bacterial community convergence in augmented and stimulated ureolytic MICP biocementation.” Environmental Science & Technology, 2021, 55(15):10784-10793.
  97. Zamani, A., Xiao, P., Baumer, T., Carey, T.J., Sawyer, B., and DeJong, J.T. “Mitigation of Liquefaction Triggering and Foundation Settlement by MICP Treatment.” ASCE JGGE, 2021, 147(10):4021099.
  98. Paull, N.A., Boulanger, R.W., DeJong, J.T., and Friesen, S.J. “Using Conditional Random Fields for a Spatially Variable Liquefiable Foundation Layer in Nonlinear Dynamic Analyses of Embankments.” ASCE JGGE, 2021, 147(11):04021134.
  99. Raymond, A.J., DeJong, J.T., Kendall, A., Blackburn, J.T., and Deschamps, R. “Life Cycle Sustainability Assessment of Geotechnical Ground Improvement Methods.” ASCE JGGE, 2021, 147(12): 04021161.
  100. Paull, N.A., Boulanger, R.W., DeJong, J.T., and Friesen, S.J., “Nonlinear Dynamics Analyses of Perris Dam Using Transition Probability to Model Interbedded Alluvial Strata.” ASCE JGGE, 2021, 148(1):05021015.
  101. Purdy, C.M., Raymond, A.J., DeJong, J.T., Kendall, A., Krage, C.P., and Sharp, J., “Life-cycle sustainability assessment of geotechnical site investigation.” Canadian Geotechnical Journal, 2022, 59, 863-877.
  102. Khosravi, M., DeJong, J.T., Boulanger, R.W., Khosravi, A., and Hajialilue-Bonab, M. “Centrifuge Tests of Cone-Penetration Test of Layered Soil.” ASCE JGGE, 2022, 148(4): 04022002.
  103. Humire, F., Lee, M., Ziotopoulou, K., Gomez, M.G., and DeJong, J.T. “Development and Evaluation of Preconditioning Protocols for Sand Specimens in Constant-Volume Cyclic Direct Simple Shear Tests.” ASTM GTJ, 2022. 
  104. Carey, T.J., Chiaradonna, A., Love, N.C., Wilson, D.W., Ziotopoulou, K., Martinez, A., and DeJong, J.T. “Effect of soil gradation on embankment response during liquefaction: A centrifuge testing program.” SDEE, 2022, 157: 107221.
  105. Pires-Sturm, A.P. and DeJong, J.T. “Influence of particle size and gradation on liquefaction potential and dynamic response.” ASCE JGGE, 2022, 148(6): 04022045.
  106. Chen, Y., Martinez, A., and DeJong, J. “DEM study of the alteration of the stress state in granular media around a bio-inspired proble.” Canadian Geotechnical Journal, 2022, 59:1691-1711.
  107. Bassal, P.C., Boulanger, R.W., and DeJong, J.T. “System response of an interlayered deposit with spatially distributed ground deformations in the Chi-Chi earthquake.” ASCE JGGE, 2022, 148(10): 05022004.
  108. El Kortbawi, M., Moug, D.M., Ziotopoulou, K., DeJong, J.T., Boulanger, R.W. “Axisymmetric simulations of cone penetration in biocemented sands.” ASCE JGGE, 2022, 148(11):04022098, https://doi.org/10.1061/(ASCE)GT.1943-5606.0002914. 
  109. Ahmed, S.S., Martinez, A., and DeJong, J.T. “Effect of Gradation on the Strength and Stress-Dilation Behavior of Coarse-Grained Soils in Drained and Undrained Triaxial Compression.” ASCE JGGE, 2023, 149(5):04023019, https://doi.org/10.1061/JGGEFK.GTENG-10972. 
  110. Carey, T. J., Love, N. C., & DeJong, J. T. “The Liquefaction and Cyclic Mobility Performance of Embankment Systems Constructed with Different Sand Gradations.” ASCE JGGE, 2023, 149(10): 04023084, https://doi.org/10.1061/JGGEFK.GTENG-11501. 
  111. El Kortbawi, M., Moug, D.M., Ziotopoulou, K., DeJong, J.T., Boulanger, R.W. “Closure to: Axisymmetric simulations of cone penetration in biocemented sands.” ASCE JGGE, 2023, 149(11):07023015, https://doi.org/10.1061/JGGEFK.GTENG-11890. 
  112. Lee, M., Gomez, M.G., Graddy, C.M.R., San Pablo, A.C.M., DeJong, J.T., Nelson, D.C. “Improving the spatial control of soil biocementation using indigenous microorganisms: Column experiments and reactive transport modeling.” Engineering Geology, 2023, 318:107104, https://doi.org/10.1016/j.enggeo.2023.107104. 
  113. Pires-Sturm, A.P. and DeJong, J.T. “Cone Penetration Resistance in Coarse-Grained Gravelly Soils.” ASCE JGGE, 2023, 149(1):04022120, https://doi.org/10.1061/(ASCE)GT.1943-5606.0002934. 
  114. Roth, M.J.S., Caslake, L.F., DeJong, J.T., Greer, J., Nelson, D., ParalesR. “Stimulated microbial growth for permeability reductions in granular soils.” ICE Ground Improvement, 2023, 176(1):33-40, https://doi.org/10.1680/jgrim.21.00011. 
  115. Wang, Y., Wang, Y., Soga, K., DeJong, J.T., Kabla, A.J. “Microscale investigations of temperature-dependent microbially induced carbonate precipitation (MICP) in the temperature range 4–50 C.” Acta Geotechnica, 2023, 18(1):2239-2261, https://doi.org/10.1007/s11440-022-01664-9. 
  116. Westgate, Z. J., & DeJong, J. T. “Role of Initial State, Material Properties, and Confinement Condition on Local and Global Soil–Structure Interface Behavior during Cyclic Shear.” ASCE JGGE, 2023, 149(10): 04023088, https://doi.org/10.1061/JGGEFK.GTENG-11306. 
  117. Baek, S.H., Kwon, T.H., DeJong, J.T. “Reductions in hydraulic conductivity of sands caused by microbially induced calcium carbonate precipitation.” ASCE JGGE, 2024, 150(2):04023134, https://doi.org/10.1061/JGGEFK.GTENG-11570. 
  118. Basson, M.S., Martinez, A., DeJong, J.T. “DEM investigation of the effect of gradation on the strength, dilatancy, and fabric evolution of coarse-grained soils.” ASCE JGGE, 2024, 150(8):04024060, https://doi.org/10.1061/JGGEFK.GTENG-12310. 
  119. Basson, M.S., Martinez, A., DeJong, J.T. “DEM simulations of the liquefaction resistance and post-liquefaction strain accumulation of coarse-grained soils with varying gradations.” Computers and Geotechnics, 2024, 174:106649, https://doi.org/10.1016/j.compgeo.2024.106649. 
  120. Burrall, M., DeJong, J.T., Martinez, A., Kwon, T.H. “A spring model for pullout behavior of curved, flexible structures embedded in soil.” International Journal for Numerical and Analytical Methods in Geomechanics, 2024, 48(18):4346-4364, https://doi.org/10.1002/nag.3845. 
  121. Chen, Y., Martinez, A., and DeJong, J. “DEM simulations of a bio-inspired site characterization probe with two anchors.” Acta Geotechnica, 2024, 19(3): 1495-1515, https://doi.org/10.1007/s11440-022-01684-5. 
  122. De Melo, D.L., DeJong, J.T., Kendall, A., Lehane, B.M. “Life-cycle-based considerations in design of driven piles in sand.” ICE Engineering Sustainability, 2024, 177(6):389-401, https://doi.org/10.1680/jensu.23.00099. 
  123. De Melo, D.L., Kendall, A., DeJong, J.T. “Evaluation of life cycle assessment (LCA) use in geotechnical engineering.” Environmental Research: Infrastructure and Sustainability, 2024, 4(1):012001, https://doi.org/10.1088/2634-4505/ad2154.
  124. Kim, Y.A., Burrall, M., Jeon, M.K., DeJong, J.T., Martinez, A., Kwon, T.H. “Pullout behavior of tree root-inspired anchors: development of root architecture models and centrifuge tests.” Acta Geotechnica, 2024, 19(3):1211-1229, https://doi.org/10.1007/s11440-023-02077-y. 
  125. Moug, D., Huffman, A., DeJong, J.T. “Investigation of piezocone dissipation test interpretation in clay accounting for vertical and horizontal porewater pressure dissipation with a large deformation axisymmetric penetration model.” Frontiers in Built Environment, 2024, 10:1386803, https://doi.org/10.3389/fbuil.2024.1386803. 
  126. San Pablo, A.C.M., DeJong, J.T., Carey, T.J. “Influence of biocementation treatment extent on dynamic system performance: A centrifuge liquefaction study.” Soil Dynamics and Earthquake Engineering, 2024, 183:108792, https://doi.org/10.1016/j.soildyn.2024.108792. 
  127. Burrall, M., DeJong, J.T., Martinez, A., Herman, J.D. “Flexible Foundation and Anchorage Systems Optimized for Vertical Pullout Capacity Using an Optimal Control Technique.” ASCE JGGE, 2025, 151(6):04025036, https://doi.org/10.1061/JGGEFK.GTENG-12572. 
  128. DeJong, J.T., Wilson, D., Martinez, A., Ziotopoulou, K., Ham, S.M., Boulanger, R.W. “NHERI Centrifuge Facility: Systems-scale Hypergravity Modeling in Engineering and Scientific Research.” Frontiers in Built Environment, 2025, 11:1568832, https://doi.org/10.3389/fbuil.2025.1568832. 
  129. Hogan, A.A., Kelly, S.A., Sharp, J.T., DeJong, J.T. “A Comprehensive Review of Field Vane Shear Testing in Mine Tailings and Recommendations for Tailored Standards.” ASTM Geotechnical Testing Journal, 2025, 48(1):80-91, https://doi.org/10.1520/GTJ20240027.
  130. Jeon, M.K., Burrall, M., Kwon, T.K., DeJong, J.T., Martinez, A. “Architecture characterization of orchard trees for mechanical behavior investigations.” Biogeotechnics, 2025, 3(2):100-138, https://doi.org/10.1016/j.bgtech.2024.100138. 
  131. Raymond, A.J., DeJong, J.T., Gomez, M.G., Kendall, A., San Pablo, A.C.M., Lee, M., Graddy, C.M.R., and Nelson, D.C. “Life Cycle Sustainability Assessment of Microbially Induced Calcium Carbonate Precipitation (MICP) Soil Improvement Techniques.” Applied Sciences, 2025, 15(3):1059-2025,  https://doi.org/10.3390/app15031059. 
  132. Shivaprakash, S.H., Yanez, V.R., GraddyC.M.R., Gomez, M.G., DeJong, J.T., Burns, S.E. “Effect of natural carbonates on microbially induced calcite precipitation process.” Scientific Reports, 2025, 15(1):13290, https://doi.org/10.1038/s41598-025-97737-2.

Conference Papers

  1. DeJong, J.T., Cargill, P.E., and Frost, J.D. “Measurements of Side Friction Using Textured CPT Friction Sleeves” Innovations and Applications in Geotechnical Site Characterization, American Society of Civil Engineers, Geotechnical Special Publication, 97, 2000, pp. 80-93.
  2. DeJong, J.T., Frost, J.D., Sacs, M. “Relating Quantitative Measures of Surface Roughness and Hardness to Geomaterial Interface Strength” Proceedings of GeoEng2000, Sydney, Australia, CD-ROM, 2000, 6 pp.
  3. DeJong, J.T. and Frost, J.D. “Effect of CPT Friction Sleeve Roughness and Position on fs Measurements” Proceedings of International Conference on In Situ Characterization of Soil Properties, Bali, 2001, pp. 637-642.
  4. Frost, J.D., and DeJong, J.T. “A New Multi-Friction Sleeve Attachment” Proceedings of 15th International Conference of Soil Mechanics and Geotechnical Engineering, Istanbul, Turkey, 2001, pp. 41-44.
  5. Frost, J.D. and DeJong, J.T. “Physical Evidence of Shear Banding at Granular-Continuum Interfaces” American Society of Civil Engineers, Engineering Mechanics Conference 2002 Conference, New York, New York, CD-ROM Proceedings, 2002, 8 p.
  6. DeJong, J.T., White, D.J. and Randolph, M.F. “Effect of Cementation of Cyclic Soil-Structure Interface Behavior” American Society of Civil Engineers, Engineering Mechanics Conference 2003 Conference, Seattle, Washington, CD-ROM Proceedings, 2003, 4 p.
  7. DeJong, J.T., DeGroot, D.J., Yafrate, N.J., and Jakabowski, J. “Detection of Soil Layering Using a Miniature Piezoprobe” Soil Rock America 2003 (12th Pan-american Conference for Soil Mechanics and Geotechnical Engineeering and the 39th US Rock Mechanics Symposium), Boston, MA., 2003, Vol. 1, pp. 151-156.
  8. DeJong, J.T., Howey, D.T., Civjan, S.A., Brena, S.F., Butler, D.S., Crovo, D.S., and Hourani, N. “Influence of Daily and Annual Thermal Variations on Integral Abutment Bridge Performance” American Society of Civil Engineers, Geo-Trans Conference, Los Angeles, California, 2004, pp. 496-505.
  9. DeJong, J.T., Yafrate, N.J., DeGroot, D.J., and Jakubowski, J. “Evaluation of the Undrained Shear Strength Profile in Soft Layered Clay Using Full-Flow Probes” 2nd International Site Characterization Conference, Porto, Portugal, Vol. 1, 2004, pp. 679-686.
  10. DeJong, J.T., Fritzges, M.B., Sellers, J.B., and McRae, J.B. “Pore Pressure Characterization of Geotechnical Experimentation Site Using Multilevel Vibrating Wire Piezometers” Geo-Quebec Conference, Quebec City, Canada, 2004, 8 p.
  11. DeJong, J.T. and Christoph, G.G. “Relation of Initial Specimen State and Particle Properties to the Breakage Potential of Granular Soils” Geo-Quebec Conference, Quebec City, Canada, 2004, 7 p.
  12. Westgate, Z. and DeJong, J.T. “Particle Crushing at the Soil-structure Interface During Cyclic Loading” American Society of Civil Engineers, Engineering Mechanics Conference 2004 Conference, Delaware, 2004, 5 p.
  13. Frost, J.D., Hebeler, G.L., Evans, T.M., and DeJong, J.T. “Interface Behavior of Granular Soils” 9th ASCE Aerospace Division International Conference on Engineering, Construction and Operations in Challenging Environments, Houston, TX, 2004, pp. 65-72.
  14. Bonczar, C., Breña, S.F., Civjan, S.A., DeJong, J., Crellin, B., and Crovo, D. “Field Data and FEM Modeling of the Orange-Wendell Bridge” Proceedings: 2005 FHWA Conference: Integral Abutment and Jointless Bridges (IAJB 2005), Baltimore, MD, 2005, pp. 163-173.
  15. Bonczar, C., Breña, S.F., Civjan, S.A., DeJong, J., and Crovo, D. “Integral Abutment Pile Behavior and Design – Field Data and FEM Studies” Proceedings: 2005 FHWA Conference: Integral Abutment and Jointless Bridges (IAJB 2005), Baltimore, MD, 2005, pp. 174-184.
  16. Yafrate, N.J. and DeJong, J.T. “Detection of Stratigraphic Interfaces and Thin Layering Using a Miniature Piezoprobe” American Society of Civil Engineers GSP 138, Austin, TX., 2005, 11 p.
  17. DeJong, J.T. and Yafrate, N.J. “Considerations in Evaluating the Remolded Undrained Shear Strength from Full Flow Penetrometer Cycling” International Symposium on Frontiers in Offshore Geotechnics, Perth, Australia, 2005, pp. 991-997.
  18. Fritzges, M.B., DeJong, J.T., and Nusslein, K.  “Biologically Induced Improvement of Loose Sand” Proc. 8NCEE Conference, Paper #1691, 2006, 10 p.
  19. Westgate, Z.J. and DeJong, J.T. “Evolution of Sand-Structure Interface Response During Monotonic Shear Using Particle Image Velocimetry” Geo-Congress Atlanta 2006 – Role of Geotechnical Engineering in the Information Technology Age, 2006, 6 p.
  20. Westgate, Z.J. and DeJong, J.T. “Evolution of Local Soil-Structure Interface Response using Particle Image Velocimetry” Proc. International Symposium on Geomechanics and Geotechnics of Particulate Media, 2006, 6 p.
  21. Yafrate, N.J. and DeJong, J.T. “Interpretation of Sensitivity and Remolded Undrained Shear Strength with Full Flow Penetrometers” Proceedings ISOPE Conference, San Francisco, CA, 2006, 6 p.
  22. Westgate, Z.J. and DeJong, J.T. “Geotechnical Considerations for Offshore Wind Farm Development and Foundation Optimization” WindPower 2006 Conference, Pittsburg, PA, 10 p., 2006.
  23. Yafrate, N.J. and DeJong, J.T. “Influence of Penetration Rate on Measured Resistance with Full Flow Penetrometers” Advances in Measurement and Modeling of Soil Behavior, ASCE GSP 173, Denver, CO, 2007, 10 p.
  24. DeGroot, D.J., DeJong, J.T., Yafrate, N.J., Landon, M.M., and Sheahan, T.C. “Application of Recent Developments in Terrestrial Soft Sediment Characterization Methods to Offshore Environments” Offshore Technology Conference, Paper No. 18737, 2007.
  25. Yafrate, N.J., DeJong, J.T. and DeGroot, D.J. “The influence of full-flow penetrometer area ratio on undrained strength measurements” 6th International Conference on Offshore Site Investigation and Geotechnics, Society for Underwater Technology (SUT), London, 2007, pp. 461-468.
  26. DeJong, J.T., Yafrate, N.J., and Randolph, M.F. “Use of a Full Flow Ball Penetrometer with Pore Pressure Measurements in Soft Clay” ISC-3: 3rd International Conference on Site Characterization (ISSMGE), Taipei, Huang and Mayne (eds)., 2008, pp. 269-1275.
  27. Low, H.E, Randolph, M.F, DeJong, J.T, and Yafrate, N. J. “Variable Rate Field Penetration Tests In Soft Clay” 3rd International Conference on Site Characterization (ISSMGE), Taipei, Huang and Mayne (eds). 2008, pp. 1087-1092.
  28. Dahl, K.R., Boulanger, R.W., and DeJong, J.T. “Cyclic Strength Testing of Low Plasticity Fine-Grained Soils”  Proceedings of Dam Safety 2008, Association of State Dam Safety Officials, Indian Wells, CA, September, 2008, 14 p..
  29. Jaeger, R.A., DeJong, J.T., and Boulanger, R.W. “Variable Rate Cone Penetration Testing” United States Society of Dams, 2008, Issue 146, 1 pp.
  30. Barkouki, T., Martinez, B., Mortensen, B., Weathers, T., DeJong, J., Spycher, N., Ginn, T., Fujita, Y., and Smith, R. “Forward and Inverse Bio-geochemical modeling of microbially induced calcite precipitation in 0.5m columnar experiments” TOUGH Symposium, Lawrence Berkeley National Laboratory, Berkeley, California, 2009, 8 pp.
  31. DeJong, J. T. and Martinez, B.M. “Bio-Mediated Soil Improvement: Load Transfer Mechanisms at the Micro- and Macro- Scales” Advances in Ground Improvement: Research to Practice in the United States and China, ASCE GSP No. 188, 2009, pp. 242-251.
  32. DeJong J.T., Martinez, B.C., Mortensen, B.M., Nelson, D.C. , Waller, J.T., Weil, M.H., Ginn, T.R., Weathers, T., Barkouki, T., Fujita, Y., Redden, G., Hunt, C., Major, D., Tanyu, B., “Upscaling of bio-mediated soil improvement”, 17th International Conference on Soil Mechanics and Foundation Engineering, Alexandria, Egypt, 2009, Vol. 3, pp. 2300-2303.
  33. DeJong J.T. “General Report for Technical Session 1D: In-situ Testing” 17th International Conference on Soil Mechanics and Foundation Engineering, Alexandria, Egypt, 2009, Vol. 4, pp. 3278-3287.
  34. DeJong, J.T. and Westgate, Z. “Linking Micro-Scale Behavior with Measured Global Interface Response” Research Symposium on the Characterization and Behavior of Interfaces, Research Symposium on the Characterization and Behavior of Interfaces, IOS Press, 2010, pp. 24-34.
  35. Park, D., Kutter, B.L., and DeJong, J.T. “Centrifuge modeling of a sensitive clay slope for simulation of strain softening” 7th International Conference on Physical Modeling in Geotechnics, 2010, pp. 159-164.
  36. Jaeger, R.A., DeJong, J.T., Boulanger, R.W., Low, H.E., and Randolph, M.F. “Variable penetration rate CPT in an intermediate soil” 2nd International Symposium on Cone Penetration Testing, 2010, 15 pp.
  37. Dahl, K. R., DeJong, J. T., Boulanger, R. W., and Driller, M. W. “Laboratory testing of an alluvial clayey and silty sand” United States Society on Dams Annual Conference, Sacramento, Calif., April 12-16, 2010, pp. 185-199.
  38. Dahl, K. R., DeJong, J. T., Boulanger, R. W., and Driller, M. W. “Effects of sample disturbance and consolidation procedures on cyclic strengths of intermediate soils” Fifth International Conference on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics and Symposium in Honor of Professor I. M. Idriss, San Diego, Calif., 24-29 May, Paper No. OSP1, 2010, pp. 1-20.
  39. Martinez, B., Barkouki, T., DeJong, J.D., and Ginn, T.R. “Upscaling of Microbial Induced Calcite Precipitation in 0.5m Columns:  Experimental and Modeling Results” ASCE Geo-Institute Annual Conference: Geo-Frontiers 2011. Dallas, Texas, 2011, pp. 4049-4059.
  40. Al Qabany, A., Mortensen, B., Martinez, B., Soga, K., and DeJong, J.T. “Microbial Carbonate Precipitation: Correlation of S-Wave Velocity with Calcite Precipitation”. ASCE Geo-Institute Annual Conference: Geo-Frontiers 2011. Dallas, Texas, 2011, pp. 3993-4001.
  41. Mortensen, B.M., and DeJong, J.T. “Strength and Stiffness of MICP Treated Sand Subjected to Various Stress Paths”. ASCE Geo-Institute Annual Conference: Geo-Frontiers 2011. Dallas, Texas, 2011, pp. 4012-4020.
  42. Jaeger, R.A., DeJong, J.T., and Boulanger, R.W. “Cylindrical Cavity Expansion Analysis of Varialbe Penetration Rate Cone Penetration Testing using an Anisotropic Soil Model”. ASCE Geo-Institute Annual Conference: Geo-Frontiers 2011. Dallas, Texas, 2011, pp. 2288-2297.
  43. Armstrong, R.J., DeJong, J.T., and Yafrate, N.J. “Engaging Students with Diverse Learning Styles in Large Geotechnical Engineering Classes”. ASCE Geo-Institute Annual Conference: Geo-Frontiers 2011. Dallas, Texas, 2011, pp. 2857-2866.
  44. Thurairajah, A., DeJong, J.T., and Shantz, T. “A Reusable Instrumented Test Pile for Improved Pile Design”. ASCE Geo-Institute Annual Conference: Geo-Frontiers 2011. Dallas, Texas, 2011, pp. 27-35.
  45. Bernardi, D., Mortensen, B., DeJong, J.T., and DeJong, M.J. “Bio-Cemented Bricks”, IABSE-IASS 2011 Conference, London, UK, September 21-24, 2011, 8 p.
  46. DeJong, J.T., Mortensen, B., Soga, K., Kavazagian, E., Martinez, B. “Harnessing In-situ Biogeochemical Systems for ‘Natural’ Ground Improvement”, ASCE GeoInstitute Geo-Strata Magazine, Nov/December 2011, 37-39 p.
  47. Tom, G., DeJong, J.T., Boulanger, R.W., Jaeger, R.A., and Boylan, N. “Characterization and Modeling of a Reconstituted Offshore Silty-Clay”, ASCE GeoInstitute GeoCongress 2012, 2012, pp. 869-879.
  48. Montoya, B.M., DeJong, J.T., Boulanger, R.W., Wilson, D.W., Gerhard, R., Ganchenko, A., and Chou, J.C. “Liquefaction Mitigation using Microbial Induced Calcite Precipitation”, ASCE GeoInstitue GeoCongress 2012, 2012, pp 1918–1927.
  49. Yafrate, N.J. and DeJong, J.T. “Insitu Strength Assessment Using Full Flow Penetrometers”, ASCE GeoInstitute Geo-Strata Magazine, March/April 2012, 32-34 p.
  50. DeJong, J.T., Jaeger, R.A., Boulanger, R.W., Randolph, M.F., Wahl, D.A.J. “Variable Penetration Rate Cone Testing for Characterization of Intermediate Soils”, 4th International Site Characterization Conference, (Keynote Paper), 2012, 25-42.  Geotechnical and Geophysical Site Characterization 4 – Coutinho & Mayne (eds.), © 2013 Taylor & Francis Group, London, ISBN 978-0-415-62136-6
  51. Fourie, A.B., Tibbett, M., and DeJong, J.T. “The fallacy of designing for in-perpetuity: geotechnical presumptions, ecosystem responses and concepts for managing inevitable change”, Mine Closure 2012, A.B. Fourie and M. Tibbett (eds)., 2012, pp. 127-136.
  52. DeJong, J.T., Martinez, B.C., Ginn, T.R., Nelson, D.C. “Bio-geo-chemical processes for improvement of soil engineering properties with focus on microbially induced calcite precipitation”, Coupled Phenomena in Environmental Geotechnics, Manassero et al. (Eds.), Taylor and Francis Group, 2013, pp. 103-117.
  53. Gomez, M.G., DeJong, J.T., Martinez, B.C., Hunt, C.E., deVlaming, L.A., Major, D.W., and Dworatzek, S.M. “Bio-mediated Soil Improvement Field Study to Stabilize Mine Sands”, Geo-Montreal, 2014, 8 pgs.
  54. DeJong, J.T., Thurairajah, A., and Ghafghazi, M. “A Reusable Instrumented Test Pile for Improved Pile Design“, Geotechnical News, December 2013, pp. 29-33.
  55. Gomez, M.G., Anderson, C.M., DeJong, JT., Nelson, D.C., and Lau, X.H. “Stimulating In-Situ Soil Bacteria for Bio-Cementation of Sands”, GeoCongress 2014, GSP 234, 2014, pp. 1674-1682.
  56. DeJong, J.T., Proto, C., Kuo, M., and Gomez, M. “Bacteria, Bio-films, and Invertebrates… the Next Generation of Geotechnical Engineers?”, GeoCongress 2014, GSP 234, 2014, pp. 3959-3968.
  57. Ghafghazi, M., Thurairajah, A., DeJong, J.T., Wilson, D.W., Armstrong, R. “Instrumented Becker Penetration Test for Improved Characterization of Gravelly Deposits” GeoCongress 2014, GSP 234, 2014, pp. 37-46.
  58. Krage, C.P., DeJong, J.T., and Wilson, D.W. “Variable Penetration Rate Cone Testing in Sands with Fines”, GeoCongress 2014, GSP 234, 2014, pp. 170-179.
  59. Ghafghazi, M., DeJong, J.T., Sturm, A.P., Wilson, D.W., Davis, C., Perez, A., and Armstrong, R. “Characterization of Gravelly Soils for Liquefaction Potential Assessment at Dam Sites Using the iBPT”, USSD 2014 Conference, San Francisco, CA, 2014, pp. 285-297.
  60. Maki, I.P., Boulanger, R.W., DeJong, J.T., and Jaeger, R.A. “Overburden Normalization of CPT Data in Sands to Clays”, CPT ’14, Las Vegas, 2014, pp. 611-619.
  61. Krage, C.P., Broussard, N.S., and DeJong, J.T. “Estimating Rigidity Index (IR) Based on Cone Measurements”, CPT ’14, Las Vegas, 2014, pp. 727-735.
  62. Jaeger, R.A., DeJong, J.T., Boulanger, R.W., and Maki, I.P. “Effects of State Parameter, Fines Content, and Overburden Stress on Cone Penetration Resistance in Silty Sands”, CPT ’14, Las Vegas, 2014, pp. 655-663.
  63. DeJong, J.T. “Sustainable Biogeotechnics”, ASCE Geo-Institute Geo-strata, October 2015, pp. 24- 32.
  64. Dahl, K. R., DeJong, J. T., and Boulanger, R. W. “Effects of disturbance and consolidation procedures on the behavior of intermediate soils,” 12th Australia New Zealand Conference on Geomechanics (ANZ 2015), 2015, 22-25 February, Wellington, New Zealand.
  65. DeJong, J.T., Sturm, A., and Ghafghazi, M. “Characterization of Gravelly Alluvium”, 6th ICEGE Conference (keynote), Christchurch, New Zealand, 2015, 20 pp.
  66. Price, A.B., Boulanger, R.W., DeJong, J.T., Parra Bastidas, A.M., and Moug, D. “Cyclic strengths and simulated CPT penetration resistances in intermediate soils”, 6th ICEGE Conference, Christchurch, New Zealand, 2015, 8 pp.
  67. Krage, C.P., DeJong, J.T., DrGroot, D.J, Dyer, A.M., and Lukas, W.F. “Applicability of Clay-Based Sample Disturbance Criteria to Intermediate Soils”, 6th ICEGE Conference, Christchurch, New Zealand, 2015, 8 pp.
  68. Price, A.B., DeJong, J.T., Boulanger, R.W., Parra Bastidas, A.M., and Moug, D. “Effect of Prior Strain History on Cyclic Strength and CPT Penetration Resistance of Silica Silt”, ASCE Geo-Institute, Geo-Sei 2016 Conference, 8 pp.
  69. Darby, K.M, Bronner, J.D., Parra Bastidas, A.M., Boulanger, R.W. and DeJong, J.T. “Effect of Shaking History on Cone Penetration Resistance and Cyclic Strength of Saturated Sand”, ASCE Geo-Institute, Geo-Sei 2016 Conference, 11 pp.
  70. Munter, S.K., Krage, C.P., Boulanger, R.W., DeJong, J.T., and Montgomery, J. “Potential for Liquefaction-Induced Lateral Spreading in Interbedded Deposits Considering Spatial Variability”, ASCE Geo-Institute, Geo-Sei 2016 Conference, 11 pp.
  71. Krage, C. P., DeJong, J. T., and Boulanger, R. W. “Identification of geologic depositional variations using CPT-based conditional probability mapping.” Proceedings, 5th International Conference on Geotechnical and Geophysical Site Characterization, Gold Coast, Australia, September 5-9, 2016.
  72. Krage, C.P., Albin, B.M., DeJong, J.T., and DeGroot, D.J. “The Influence of In-situ Effective Stress on Sample Quality for Intermediate Soils”, Proceedings, 5th International Conference on Geotechnical and Geophysical Site Characterization, Gold Coast, Australia, September 5-9, 2016.
  73. Boulanger, R. W., Moug, D. M., Munter, S. K., Price, A. B., and DeJong, J. T. “Evaluating liquefaction and lateral spreading in interbedded sand, silt, and clay deposits using the cone penetrometer”, Proceedings, 5th International Conference on Geotechnical and Geophysical Site Characterization, Gold Coast, Australia, September 5-9, 2016.
  74. Moug, D. M., Boulanger, R. W., and DeJong, J. T. “Simulation of cone penetration in anisotropic clay.” Proceedings, GeoVancouver 2016, Canadian Geotechnical Society, Vancouver, BC, Canada, October 2-5, 2016.
  75. Ghafghazi, M. and DeJong, J.T. “A Review of Liquefaction Case Histories in Gravelly Soils Using SPT-Based Triggering Curves”, GeoVancouver 2016, Canadian Geotechnical Society, Vancouver, BC, Canada, October 2-5, 2016.
  76. Sturm, A., Kuei, K., Rossiter, A., DeJong, J.T., Thurairajah, A., and Olivera, R. “Characterization of Gravelly Soils in Vancouver, B.C. Using the instrumented Becker Penetration Test”, GeoVancouver 2016, Canadian Geotechnical Society, Vancouver, BC, Canada, October 2-5, 2016.
  77. Kavazanjian, E. and DeJong, J.T. “Biogeotechnical Mitigation of Earthquake-Induced Soil Liquefaction”, Geo-Strata —Geo Institute of ASCE, 2016, Vol. 20, Issue 6, Pg. 62-67
  78. Munter, S. K., Boulanger, R. W., Krage, C. P., and DeJong, J. T. “Evaluation of liquefaction-induced lateral spreading procedures for interbedded deposits: Cark Canal in the 1999 M7.5 Kocaeli earthquake”, Geotechnical Frontiers 2017, Seismic Performance and Liquefaction, Geotechnical Special Publication No. 281, T. L. Brandon and R. J. Valentine, eds., 2017, 254-266, https://doi.org/10.1061/9780784480489.026.
  79. Darby, K. M., McIlroy, M. W., Boulanger, R. W., and DeJong, J. T. “Analysis of liquefaction at a bridge site in the 2014 Napa earthquake”, Geotechnical Frontiers 2017, Seismic Performance and Liquefaction, Geotechnical Special Publication No. 281, T. L. Brandon and R. J. Valentine, eds., 2017, 277-289, https://doi.org/10.1061/9780784480489.028.
  80. DeJong, J.T., Gomez, M.G., Waller, J.T., and Viggiani, G. “Influence of Bio-Cementation on Shearing Behavior of Sand using X-ray Computed Tomography”, Geotechnical Frontiers 2017, Orlando, Florida, March 12-15, 2017, https://doi.org/10.1061/9780784480472.093.
  81. DeJong, J.T., Burrall, M., Wilson, D.W., and Frost, J.D. “A Bio-Inspired Perspective for Geotechnical Engineering Innovation”, Geotechnical Frontiers 2017, Orlando, Florida, March 12-15, 2017, https://doi.org/10.1061/9780784480472.092.
  82. Frost, J.D., Martinez, A., Mallett, S.D., Roozbahani, Mahdi, and DeJong, J.T. “The Intersection of Modern Soil Mechanics with Ants and Roots”, Geotechnical Frontiers 2017, Orlando, Florida, March 12-15, 2017, https://doi.org/10.1061/9780784480472.096.
  83. Kuei, K.C., Rossiter, A.M., Sturm, A.P., DeJong, J.T., Wilson, D.W., and Ghafghazi, M. “An Instrumented Becker Penetration Test for Estimation of Soil Penetration Resistance and Pile Capacity in Gravelly Soils”, Geotechnical Frontiers 2017, Orlando, Florida, March 12-15, 2017, https://doi.org/10.1061/9780784480441.064.
  84. Raymond, A.J., Pinske, M.A., Kendall, A., and DeJong, J.T. “Life Cycle Assessment of Ground Improvement Alternatives for Treasure Island, California Redevelopment”, Geotechnical Frontiers 2017, Orlando, Florida, March 12-15, 2017, https://doi.org/10.1061/9780784480434.037.
  85. Sturm, A., Kuei, K., DeJong, J.T., Thurairajah, A., Olivera, R., and Ghafghazi, M. (2017) “Comparison of Becker Penetration Test Interpretation Methods in Characterization of Gravelly Soil Deposits”, Proc., Performance-based Design in Earthquake Geotechnical Engineering, PBD-III Vancouver, M. Taiebat et al., eds., ISSMGE Technical Committee TC203, paper 320.
  86. Darby, K. M., Boulanger, R. W., and DeJong, J. T. (2017). “Effect of multiple shaking events on cone penetration resistances in saturated sand.” Proc., Performance-based Design in Earthquake Geotechnical Engineering, PBD-III Vancouver, M. Taiebat et al., eds., ISSMGE Technical Committee TC203, paper 534.
  87. Khodadadi, T.H., Kavazanjian, E., van Paassen, L., and DeJong, J.T. “Bio-Grout Materials: A Review”, ASCE Grouting 2017, Geotechincal Special Publication 288, Honolulu, Hawaii, July 9–12, 2017, https://doi.org/10.1061/9780784480793.001.
  88. Gomez, M.G. and DeJong, J.T. “Engineering Properties of Bio-Cementation Improved Sandy Soils”, ASCE Grouting 2017, Geotechincal Special Publication 288, Honolulu, Hawaii, July 9–12, 2017, https://doi.org/10.1061/9780784480793.003.
  89. Lucia, P.C., Yabusaki, L., DeJong, J.T., and Coduto, D.J. “Claims Against Geotechnical Engineers: Getting it Right in the Midst of Uncdertainty”, ASCE Geo-Strata Magazine, July/August 2017, 54-59.
  90. Lukas, W.G., DeGroot, D.J., Zhang, G., DeJong, J.T., and Krage, C.P. “Influence of laboratory simulated tube sampling disturbance on undrained shear behavior of a low plasticity synthetic intermediate soil”, Proceedings of the 19th International Conference on Soil Mechanics and Geotechnical Engineering, Seoul 2017.
  91. Monaco, P., da Fonseca, A.V., DeJong, J.T., and Lehane, B. “General Report for Technical Sessioon: In-situ Testing”, Proceedings of the 19th International Conference on Soil Mechanics and Geotechnical Engineering, Seoul 2017.
  92. Parra Bastida, A.M., Boulanger, R.W., DeJong, J.T., and Price, A.B. “Effects of pre-strain history on the cyclic resistance of Ottawa F-65 sand”, 16th World Conference on Earthquake Engineering, Santiago, Chile, January 9-14, 2017.
  93. Kuei, K.C., DeJong, J.T., and Ghafghazi, M. “A Multistage Signal Matching Approach for Pile Capacity Estimation Using the Instrumented Becker Penetration Test”, IFCEE 2018, Orlando, Florida, March 5-10, 2018, 632-642, https://doi.org/10.1061/9780784481578.060.
  94. Darby, K. M., Hernandez, G. L., Gomez, M. G., DeJong, J. T., Wilson, D. W., and Boulanger, R. W. “Centrifuge model testing of liquefaction mitigation via microbially induced calcite precipitation.” Proc., Geotechnical Earthquake Engineering and Soil Dynamics V, Geotechnical Special Publication 290, S. J. Brandenberg and M. T. Manzari, eds., ASCE, 2018, 127-137, https://doi.org/10.1061/9780784481455.012.
  95. Hall, C.A., Hernandez, G., Darby, K.M., van Paassen, L., Kavazanjian, E., DeJong, J.T., Wilson, D.W. “Centrifuge Model Testing of Liquefaction Mitigation via Denitrification-Induced Desaturation”,   Proc., Geotechnical Earthquake Engineering and Soil Dynamics V, Geotechnical Special Publication 290, S. J. Brandenberg and M. T. Manzari, eds., ASCE, 2018, 127-137, https://doi.org/10.1061/9780784481455.011.
  96. Darby, K. M., Boulanger, R. W., and DeJong, J. T. “Volumetric strains from inverse analysis of pore pressure transducer arrays in centrifuge models.” Proc., Geotechnical Earthquake Engineering and Soil Dynamics V, Geotechnical Special Publication 290, S. J. Brandenberg and M. T. Manzari, eds., ASCE, 2018, 626-636, https://doi.org/10.1061/9780784481455.058.
  97. Khosravi, M., Boulanger, R. W., Khosravi, A., DeJong, J. T., Hajialilue-Bonab, M., and Wilson, D. W. (2018). “Centrifuge modeling of cone penetration testing in layered soil.” Proc., , Geotechnical Special Publication 290, S. J. Brandenberg and M. T. Manzari, eds., ASCE, 2018, 138-147, https://doi.org/10.1061/9780784481455.013.
  98. Sturm, A, P., Shepard, G., DeJong, J.T., and Wilson, D., “A Centrifuge Study on the Effects of Soil Gradation on Liquefaction Potential and Dynamic Response”, ASDSO Conference, Seattle, Washington, September 9-12, 2018. 
  99. Dahl, K., Boulanger, R.W., and DeJong, J.T. “Trends in Experimental Data of Intermediate Soils for Evaluating Dynamic Strength”, 11th U.S. National Conference on Earthquake Engineering, Los Angeles, CA, June 25-29, 2018.
  100. Boulanger, R.W. and DeJong, J.T. “Inverse filtering procedure to correct cone penetration data for thin-layer and transition effects”, CPT ’18 Conference, June 21-22, 2018, 19 pp.
  101. Savenye, W., Larson, J., Zapata, C., Kavazanjian, E., Elwood, K., Barnard, W., O’Donnell, M., Chandler, J., Saenz, D., Woolley, M., Van Paassen, L., Bronner, C., DeJong, J., Martinez, A.; Greer, J.; Mitchell, M., Brown, S., Frost, D., Newstetter, W., Vangla, P., Siegel, A. (2018). Building and evaluating education and outreach programs for an NSF Engineering Research Center, the Center for Bio-Mediated and Bio-Inspired Geotechnics (CBBG). Proceedings of EdMedia + Innovate Learning 2018 (June 25, 2018). pp. 960-965. https://www.learntechlib.org/results/?q=Savenye&source=EDMEDIA%2F2018%2F1
  102. Hall, C.A., van Paassen, L.A., Rittmann, B., Kavazanjian, E., DeJong, J.T., and Wilson, W. “Evaluation of Biogenic Gas Formation by Denitrification in Centrifuge”, 7th International Conference on Unsaturated Soils, Hong Kong, Hong Kong, August 3-6, 2018.
  103. Bronner, C.W., Wilson, D.W., Ziotopoulou, K., Darby, K.M., Sturm, A., Raymond, Al.J., Boulanger, R.W., and DeJong, J.T. “An example of effective mentoring for research centers”, International Conference on Physical Modeing in Geotechnics, London, UK, July 17-20, 2018.
  104. Krage, C.P., DeJong, J.T., and DeGroot, D.J. “An acid dissolution method for preparation of contractive fine-grained soil specimens”, IS Atlanta, September 10-12, 2018.
  105. Wang, Y., Soga, K., DeJong, J.T., and Kabla, A.J. “Microscale visualization of Microbial-Induced Carbonate Precipitation (MICP) processes by different treatment procedures”, IS Atlanta, September 10-12, 2018.
  106. Burrall, M., DeJong, J.T., Wilson, D., Martinez, A., and Huang, L. “Vertical pullout tests of tree root systems for bio-inspired foundation idea development”, Bio-inspired and Bio-mediated Geotechnics Symposium, Atlanta, GA, September 12-13, 2018.
  107. Martinez, A., Khosravi, A., DeJong, J.T., and Wilson, D. “Discrete Element Simulations of Bio-Inspired Self-Burrowing Probes in Sands of Varying Density”, Bio-inspired and Bio-mediated Geotechnics Symposium, Atlanta, GA, September 12-13, 2018.
  108. Boulanger, R.W., Khosravi, M., Cox, B.R., and DeJong, J.T. “Liquefaction evaluation for an interbedded soil deposit: St. Teresa’s School, Christchurch, New Zealand”, IACGE 2018 Geotechnical and Seismic Research and Practices for Sustainability, Chongqing, China, October 19-22, 2018.
  109. Paull, N.A., Boulanger, R.W., and DeJong, J.T. “Seismic deformations of different size embankments on a spatially variable liquefiable deposit”, USSD Conference, Chicago, Illinois, April 8-11, 2019.
  110. Moug, D.M., Price, A.B., Darby, K.M., Parra Bastidas, A.M., Boulanger, R.W., and DeJong, J.T. “Mechanistic Development of CPT-based Cyclic Strength Relationships for Ottawa Sand”, 7th International Conference on Earthquake Geotechnical Engineering, Rome, Italy, June 17-20, 2019.
  111. Raymond, A.J., Purdy, C., Fox, T., Kendall, A., DeJong, J.T., Kavazanjian, E., Woolley, M., and Martin, K. “Life Cycle Sustainability Assessmentof Enzyme-Induced Carbonate Precipitation (EICP) for Fugitive Dust Control”, 3rd International Conference on Bio-Based Building Materials, Belfast, UK, June 26-28, 2019.
  112. Sturm, A.P., Shepard, G.M., DeJong, J.T., and Wilson, D.W. “A Centrifuge Study on the Effects of Soil Gradation on CPT Tip Resistance.” GeoCongress 2019: Engineering Geology, Site Characterization, and Geophysics, Philadelphia, Pennsylvania, p. 100-109.
  113. Bittar, E., Lehane, B., Boulanger, R.W., and DeJong, J.T. (2020). “CPT Filter to Estimate the End Bearing of Closed-Ended Driven Piles in Layered Sands.” 4th International Symposium on Frontiers in Offshore Geotechnics, Austin, TX, 2020 (meeting postponed until 2022 due to COVID).
  114. Raymond, A.J., Kendall, A., and DeJong, J.T. “Life Cycle Sustainability Assessment (LCSA): A Research Evaluation Tool for Emerging Geotechnologies.” ASCE GeoCongress 2020: Biogeotechnics, 330-339, Minneapolis, Minnesota, February 25-28, 2020.
  115. Yabusaki, L., Lucia, P., DeJong, J.T., and Coduto, D.L. “A Review of Legal Claims and Recommended Risk Management Practices for Site Characterization in Geotechnical Engineering.” ASCE GeoCongress 2020: Engineering, Monitoring, and Management of Geotechnical Infrastructure, 744-753, Minneapolis, Minnesota, February 25-28, 2020.
  116. Purdy, C., Raymond, A.J., DeJong, J.T., and Kendall, A. “Life Cycle Assessment of Site Characterization Methods.” ASCE GeoCongress 2020: Geo-Systems, Sustainability, Geoenvironmental Engineering, and Unsaturated Soil Mechanics, 80-89, Minneapolis, Minnesota, February 25-28, 2020.
  117. Paull, N.A., Boulanger, R.W., and DeJong, J.T. “Nonlinear Deformation Analysis of Embankments on a Spatially Variable Liquefiable Deposit Modeled Using Conditional Random Fields.” ASCE GeoCongress 2020: Engineering, Monitoring, and Management of Geotechnical Infrastructure, 1-9, Minneapolis, Minnesota, February 25-28, 2020. 
  118. San Pablo, A.M., Lee, M., Graddy, C.M., Kolvus, C.M. Khan, M., Zamani, A., Martin, N., Acuff, C., Gomez, M.G., DeJong, J.T., and Nelson, D.C. “Examining Spatial Control, Ammonium By-Product Removal, and Chemical Reductions for Bio-Cementation Soil Improvement Using Meter-Scale Experiments.” ASCE GeoCongress 2020: Foundations, Soil Improvement, and Erosion, 458-468, Minneapolis, Minnesota, February 25-28, 2020.
  119. Chen, Y., Khosravi, A., Martinez, A., DeJong, J.T., and Wilson, D.  “Analysis of the Self-Penetration Process of a Bio-inspired In Situ Testing Probe.” ASCE GeoCongress 2020: Biogeotechnics, 224-232, Minneapolis, Minnesota, February 25-28, 2020.
  120. Zamani, A., Phradichith, C., DeJong, J.T., Nelson, D., and Parales, R. “Effect of Biofilm Treatment Strategy on the Permeability Reduction of Sands.” ASCE GeoCongress 2020: Biogeotechnics, 150-158, Minneapolis, Minnesota, February 25-28, 2020.
  121. Oathes, T., Bronner, C.E., and DeJong, J.T. “Developing Authentic Design Experiences Using Case Studies in a Senior Design Course.” ASCE GeoCongress 2020: Geotechnical Earthquake Engineering and Special Topics, 669-675, Minneapolis, Minnesota, February 25-28, 2020.
  122. Sturm, A.P. and DeJong, J.T. “The Effect of Soil Gradation on System Level Dynamic Response.” ASCE GeoCongress 2020: Geotechnical Earthquake Engineering and Special Topics, 357-366, Minneapolis, Minnesota, February 25-28, 2020.
  123. Burrall, M., DeJong, J.T., Martinez, A., Wilson, D.W., and Huang, L. “Bio-inspiration Through Tree Root Pullout Tests for Innovative Anchorage Design.” ASCE GeoCongress 2020: Biogeotechnics, 233-242, Minneapolis, Minnesota, February 25-28, 2020.
  124. Kuei, K.C., DeJong, J.T., and Martinez, A. “Particle Size Effects on the Strength and Fabric of Granular Media.” ASCE GeoCongress 2020: Modeling, Geomaterials, and Site Characterization, 349-348, Minneapolis, Minnesota, February 25-28, 2020.
  125. DeGroot, D.J. and DeJong, J.T. “Best Practices for Site Characterization: Have We Regressed from Decades Past?” ASCE GeoStrata Magazine, 2020, 24(2):50-57.
  126. DeJong, J.T. and Green, K.C. “Variable Penetration Rate CPT Testing for Mine Tailings Characterization.” Tailings and Mine Waste Conference, 2020, November 15-18, 679-694.
  127. Zamani, Z., Xiao, P., DeJong, J.T., Boulanger, R.W., Wilson, D.W., and Carey, T.J. “MICP Treatment to Mitigation Soil Liquefaction-Induced Building Settlements.” ASCE IFCEE 2021, 2021, GSP 324:308-317.
  128. Lukas, W.G., DeGroot, D.J., and DeJong, J.T. (2021) “Laboratory study of impact of drainage during sampling of intermediate soils.” Proc. 6th Int. Conf. on Site Characterization, Budapest, Hungary, September 26-29, 2021.
  129. Blaker, O., DeGroot, D.J., and DeJong, J.T. “Evaluation of Bearing Capacity and In Situ Shear Strength Using the Screw Plate Load Test in Clay and Silt.” Proc. 6th Int. Conf. on Site Characterization, Budapest, Hungary, September 26-29, 2021.
  130. DeGroot, D.J., DeJong, J.T., Blaker, O., Lukas, W.G., and Krage, C.P. “Recent Advances in Sampling and Laboratory Characterization of Intermediate Soils.” Proc. 6th Int. Conf. on Site Characterization, Budapest, Hungary, September 26-29, 2021.
  131. DeJong, J.T., Krage, C.P., Boulanger, R.W., and DeGroot, D.J. “Optimization of CPT Soundings to Reduce Uncertainty in Interpretation of Subsurface Stratigraphy.” Proc. 6th Int. Conf. on Site Characterization, Budapest, Hungary, September 26-29, 2021.
  132. Krage, C.P., DeJong, J.T., Boulanger, R.W., and DeGroot, D.J. “Effect of Strain Rate and Creep on Clay Consolidation Behavior.” Proc. 6th Int. Conf. on Site Characterization, Budapest, Hungary, September 26-29, 2021.
  133. Khosravi, A., Martinez, A, and DeJong, J.T. “Effect of Modeling Parameters on DEM Simulation of CPT Measurements in Granular Media.” Proc. 6th Int. Conf. on Site Characterization, Budapest, Hungary, September 26-29, 2021.
  134. Carey, T.J., Chiaradonna, A., Love, N., DeJong, J.T., and Ziotopoulou, K. “The effect of gradation on the response of saturated sands when subjected to seismic loading: a centrifuge test”, GeoNiagara, Toronto, Canada, September 26-29, 2021.
  135. Green, K.C., DeJong, J.T., Wilson, D.W., Sharp, J.T., Parkinson, M.K., and Bowen, P. “Evaluation of Soil Disturbance due to Sonic Drilling using Instrumentation and Cone Penetration Test Measurements”, GeoNiagara, Toronto, Canada, September 26-29, 2021.
  136. Bassal, P.C., Boulanger, R.W., and DeJong, J.T. “Geostatistical Simulations for Liquefaction Analyses of a Fluvial Deposit in the Chi-Chi Earthquake”, 17th World Conference on Earthquake Engineering, Sendai, Japan, Sept 27 – Oct 2, 2021.
  137. Bassal, P.C., Boulanger, R.W., and DeJong, J.T. (2021) “Dynamic Analyses of Liquefaction and Lateral Spreading for an Interlayered Deposit in the Chi-Chi Earthquake.” Geo-Extreme 2021, 426-441, Savannah, Georgia, November 7-10, 2021.
  138. Chiaradonna, A., Ziotopoulou, K., Carey, J.T., DeJong, J.T., and Boulanger, R.W. “Dynamic Behavior of Uniform Clean Sands: Evaluation of Predictive Capabilities in the Element- and the System-Scale.” ASCE GeoCongress 2022, 2022, GSP 334:444-454.
  139. Reardon, R., Humire, R., Ahmed, S.S., Ziotopoulou, K., Martinez, A., and DeJong, J.T. “Effect of Gradation on the Strength and Stress-Dilatancy of Coarse-Grainded Soils: A Comparison of Monotonic Direct Simple Shear and Triaxial Tests.” ASCE GeoCongress 2022, 2022, GSP 334:226-236.
  140. Bassal, P.C., Boulanger, R.W., and DeJong, J.T. “Site-Specific CPT-Based Fines Content Correlations Using Percential Matching.” ASCE GeoCongress 2022, 2022, GSP 334:549-558.
  141. DeJong, J.T., Gomez, M.G., San Pablo, A.C.M., Graddy, M.R., Nelson, D.C., Lee, M., Ziotopoulou, K., El Kortbawi, M., Montoya, B., and Kwon, T.H. “State of the Art: MICP soil improvement and its application to liquefaction hazard mitigation.” 20th ICSMGE Conference – State of the Art and Invited Lectures, Rhaman and Jaksa (Eds), Australian Geomechanics Society, Sydney, Australia, May 1-5, 2022, 405-508.
  142. Gomez, M.G., Lee, M., San Pablo, A.C.M., DeJong, J.T., Graddy, C.M.R., and Nelson, D.C. “Enhancing the uniformity and extent of bio-cementation soil improvement: physical experiments and reactive transport modeling.” 20th ICSMGE Conference, Rhaman and Jaksa (Eds), Australian Geomechanics Society, Sydney, Australia, May 1-5, 2022, 4801-4806.
  143. Carey, T.J., DeJong, J.T., Ziotopoulou, K., Martinez, A., and Chiaradonna, A. “The effects of gradation on the dynamic response of embankments.” 20th ICSMGE Conference, Rhaman and Jaksa (Eds), Australian Geomechanics Society, Sydney, Australia, May 1-5, 2022, 1831-1836.
  144. Humire, F., Ziotopoulou, K., and DeJong, J.T. “Evaluating shear strain accumujlation of sands exhibiting cyclic mobility behavior.” 20th ICSMGE Conference, Rhaman and Jaksa (Eds), Australian Geomechanics Society, Sydney, Australia, May 1-5, 2022, 111-116.
  145. Chen, Y., Martinez, A., and DeJong, J.T. “Discrete element modeling of the anchor-tip interactions during self-penetration of a bio-inspired probe.” 20th ICSMGE Conference, Rhaman and Jaksa (Eds), Australian Geomechanics Society, Sydney, Australia, May 1-5, 2022, 853-858.
  146. Baek, S.H., Kwon, T.H., and DeJong J.T. “Impact of microbially induced calcite precipitation (MICP) on hydraulic conductivity of coarse sands.” 20th ICSMGE Conference, Rhaman and Jaksa (Eds), Australian Geomechanics Society, Sydney, Australia, May 1-5, 2022, 4905-4909. 
  147. El Kortbawi, M., Ziotopoulou, K., DeJong, J.T., and Moug, D.M. “Effect of sand bio-cementation on cone tip resistance: a numerical study.” CPT’22 Conference, Bologna, Italy, June 8-10, 2022, 368-373, https://www.taylorfrancis.com/reader/download/65e2198e-5f29-4a8f-8fc8-30e8b4c1075a/chapter/pdf?context=ubx. 
  148. Nia, A.B., Moug, D.M., Huffman, A.P., and DeJong, J.T. “Numerical investigation of piezocone dissipation tests in clay: Sensitivity of interpreted coefficient of consolidation to rigidity index selection.” CPT’22 Conference, Bologna, Italy, June 8-10, 2022, 282-287, https://www.taylorfrancis.com/chapters/oa-edit/10.1201/9781003308829-36/numerical-investigation-piezocone-dissipation-tests-clay-sensitivity-interpreted-coefficient-consolidation-rigidity-index-selection-barati-nia-moug-huffman-dejong. 
  149. Chiaradonna, A., Carey, T.J., Ziotopoulou, K., and DeJong, J.T. “Cone Penetration Testing to Constrain the Calibration Process of a Sand Plasticity Model for Nonlinear Deformation Analysis.” CPT’22 Conference, Bologna, Italy, June 8-10, 2022, 325-331, https://www.taylorfrancis.com/chapters/oa-edit/10.1201/9781003308829-43/cone-penetration-testing-constrain-calibration-process-sand-plasticity-model-nonlinear-deformation-analysis-chiaradonna-carey-ziotopoulou-dejong. 
  150. Kim, Y.A., Jeon, M.K., Kwon, T.H., Tran, K., Burrall, M., Martinez, A, and DeJong, J.T. “Effect of g-level on pullout behavior of tree-root inspired anchors embedded in dry sand.” Physical Modeling in Geotechnics Conference, Seoul, Korea, September 19-22, 2022, https://www.issmge.org/publications/publication/effect-of-g-level-on-pullout-behavior-of-tree-root-inspired-anchors-embedded-in-dry-sand. 
  151. Love, N.C., DeJong, J.T., Wilson, D.W., and Carey, T.J. “Tracking seismically-induced embankment deformations using high-speed camera arrays and PIV in a large centrifuge model.” Physical Modeling in Geotechnics Conference, Seoul, Korea, September 19-22, 2022, https://www.issmge.org/publications/publication/tracking-seismically-induced-embankment-deformations-using-high-speed-camera-arrays-and-piv-in-a-large-centrifuge-model. 
  152. Pires-Sturm, A., Jaeger, R., DeJong, J.T. “Estimating Maximum and Minimum Void Ratio from Index Parameters.” ASDSO Dam Safety Conference, 11 p., https://www.researchgate.net/publication/369668601_Estimating_Maximum_and_Minimum_Void_Ratio_from_Index_Parameters. 
  153. Basson, M.S., Martinez, A., DeJong, J.T., “Effect of particle size distribution on monotonic shear strength and stress-dilatancy of coarse-grained soils.” ASCE Geo-Congress 2023, Los Angeles, CA, 302-312, https://doi.org/10.1061/9780784484678.031.
  154. De Melo, D.L., Kendall, Al, DeJong, J.T. “Review of life cycle assessment (LCA) evaluation of geotechnical systems.” ASCE Geo-Congress 2023, Los Angeles, CA, 583-592, https://doi.org/10.1061/9780784484661.061.
  155. DeJong, J.T. “Biogeotechnics for Sustainable Innovation.” 2nd International Conference on Construction Resources for Environmentally Sustainable Technologies, 2023, 4 p.
  156. San Pablo, A.C.M., DeJong, J.T., Carey, T.J. “Centrifuge tests to investigate the effect of MICP treatment zone on foundation system performance.” ASCE Geo-Congress 2023, Los Angeles, CA, 110-120, https://doi.org/10.1061/9780784484654.012. 
  157. Wilson, D.W., DeJong, J.T., Boulanger, R.W. “A Hypergravity Testbed to Advance Biogeotechnics.” ASCE GeoStrata Magazine, 2023, 27(4):40-47, https://doi.org/10.1061/geosek.0000491. 
  158. Ahmed, S.S., Martinez, A., DeJong, J. “Gradation and state effects on the strength and dilatancy of coarse-grained soils.” E3S Web of Conferences, 2024, 544:13003, https://doi.org/10.1051/e3sconf/202454413003. 
  159. Kwon, T.H., Ham, S.M., Baek, S.H., Han, G., Martinez, A., and DeJong, J.T. “Pore-scale precipitation pattern and grain-scale cementation strength by microbially induced calcium carbonate precipitation (MICP).” E3S Web of Conferences, 2024, 544:03013, https://doi.org/10.1051/e3sconf/202454401013. 
  160. Ham, S.M., San Pablo, A.C.P., Caisapanta, J.L., DeJong, J.T. “Centrifuge modeling of soil-structure interaction with MICP improved soil.” ASCE Geo-Congress 2024, Vancouver, Canada, 87-95, https://doi.org/10.1061/9780784485330.010. 
  161. Ham, S., San Pablo, A.C.M., Wilson, D.W., DeJong, J.T. “Development of Model Preparation Procedure for MICP-treated Sand in Centrifuge Tests.” 5th European Conference on Physical Modelling in Geotechnics (ECPMG2024), 2024, https://doi.org/10.53243/ECPMG2024-40.  
  162. Kwon, T,K., Ham, S.M., Baek, S.H., Han, G., Martinez, A., DeJong, J.T. “Pore-scale precipitation pattern and grain-scale cementation strength by microbially induced calcium carbonate precipitation (MICP.” E3S Web of Conferences, 2024, 544: 01013, https://doi.org/10.1051/e3sconf/202454401013. 
  163. Luna, L.M.C., Lee, M., deJager, M., DeJong, J.T., Gomez, M.G., Ziotopoulou, K. “A Liquefaction Triggering Surface for Ottawa F65 Sand: Cyclic DSS Results and PM4Sand Calibration.” ASCE Geo-Congress 2024, 2024, Vancouver, Canada, 330-340, https://doi.org/10.1061/9780784485316.035. 
  164. Entezari, I., McGowan, D., Bindner, J., Glavina, J., DeJong, J. “Enhancing Soil and Tailings Characterization: Integration of Photonics Technology with  Cone Penetration Testing.” Tailings and Mine Waste 2024 Conference, 2024, 2027-2038, https://tailingsandminewaste.com/past-conference-proceedings/. 
  165. McGowan, D., Byrne, Y., Sun, Y.S., Kaminsky, H., DeJong, J. “Measurement of Bingham Yield Stress and Plastic Viscosity of Tailings Slimes using an In-Situ Viscometer.” “Enhancing Soil and Tailings Characterization: Integration of Photonics Technology with  Cone Penetration Testing.” Tailings and Mine Waste 2024 Conference, 2024, 2237-2252, https://tailingsandminewaste.com/past-conference-proceedings/.
  166. Slack, D., Obusan, R., Byrne, Y., De Melo, D., DeJong, J. “Enhancing Safety and Reducing Environmental Impact through Development of a Robotic Hybrid CPT Rig.” Tailings and Mine Waste 2024 Conference, 2024, 2433-2446, https://tailingsandminewaste.com/past-conference-proceedings/.
  167. Basson, MS, Martinez, A, DeJong, J.T. “A DEM Investigation on the Effect of Gradation on the Liquefaction Response and Fabric Evolution of Soils.” IOP Conference Series: Earth and Environmental Science, TC 105 International Symposium, 2025, 1480:012052, https://doi.org/10.1088/1755-1315/1480/1/012052. 
  168. Byrne, Y.N., Greig, J., Small, A., DeJong, J., Cator, K., “Advancing Vane Shear Testing: Development and First Field Application of a Piezometer Vane (VSTu).” Australia Mine Waste and Tailings Conference, 2025, 10 p. 
  169. Ham, S.M., Caisapanta, J.L., Wilson, D.W., and DeJong, J.T. “Effects of Structure Frequency placed in Bio-cemented Sands using Centrifuge Modeling: Past Contributions and Recent Results.” 2025 International Conference on Bio-mediated and Bio-inspired Geotechnics, 2025, 8 p., https://doi.org/10.53243/ICBBG2025-183. 
  170. Kim, Y.A., Burrall, M., Jeon, M.K., Martinez, A., DeJong, J.T., Kwon, T.H. “From Nature to Engineering: Pull-out Behaviors of Tree Root-inspired Anchors.” 2025 International Conference on Bio-mediated and Bio-inspired Geotechnics, 2025, 8 p., https://doi.org/10.53243/ICBBG2025-43. 

Conference Abstracts

  1. DeJong, J.T. and Martinez, B.M. “Utility of Geophsyical Methods for Real-Time Monitoring Bio-Mediate Ground Improvement Processes” Chapman Conference on Biogeophysics, October 15, 2008.
  2. Barkouki, T., Martinez, B., Mortensen, B., Weathers, T., DeJong, J.T., Spycher, N., Ginn, T., Fujita, Y., and Smith, R. “Forward and Inverse Bio-geochemical Modeling of Microbially Induced Precipitation in 0.5m Column Experiments” American Geophysical Union, December 2009.
  3. DeJong, J.T. “Seismic and Resistivity Measurements for Real-Time Monitoring of Bio-Mediated Soil Improvement” American Geophysical Union, December 2011.
  4. DeJong, J.T., Martinez, B.C., Ginn, T.R., Nelson, D., Hunt, C., Tanyu, B., Major, D. “Optimization of Microbial Induced Calcite Precipitation Treatments in 1-D Columns & Scaled Repeated Five-Spot Treatment Models: Numerical & Experimental Results”, Interpore Conference, Purdue University, May 2012.
  5. DeJong, J.T. “Geophysical Measurements for Real-time Monitoring of Biogeochemical Processes for Improvement of Soil Engineering Properties and Subsurface Environmental Conditions”, American Geophysical Union, San Francisco, CA, December 2013.
  6. Nassar, M., Gurung, D., Bastani, M., Gomez, M.G., Graddy, C.M.R., DeJong, J.T., Nelson, D.C., and Ginn, T.R. “Mathematical modeling of MICP in meter-scale 2D-D transient reactive transport experiments”, Goldschmidt Conference, Yokahama, Japan, June 26-July 1, 2016. 
  7. Gomez, G. and DeJong, J.T. “Influence of Soil Microorganisms on Biogeochemical Reaction Rates and Calcite Precipitation Microstructure in Calcite Bio-cemented Sands”, Engineering Mechanics Conference 2017, San Diego, CA, June 4-7, 2017.
  8. Wang, Y., Soga, K., DeJong, J.T., Kabla, A.J. “Micro-scale experimental study of Microbial-Induced Carbonate Precipitation (MICP) by using microfluidic devices”, American Geophysical Union, San Francisco, CA, December 2017.
  9. Gomez, M.G., Graddy, C.M.R., DeJong, J.T., and Nelson, D.C. “Investigating Treatment Techniques for Stimulated Ureolytic Microbially-Induced Calcite Precipitation at Field Scale Treatment Depths”, InterPore 2018, New Orleans, LA, May 14-17, 2018.
  10. Graddy, C.M.R., Gomez, M.G., DeJong, J.T., and Nelson, D.C. “High Phylogenetic and Physiological Diversity of Ureolytic Bacteria in Native Soils Bio-stimulated for MICP”, InterPore 2018, New Orleans, LA, May 14-17, 2018.
  11. San Pablo, A.C.M., Graddy, C.M.R., Gomez, M.G., DeJong, J.T., and Nelson, D.C. “Optimization of Treatment Techniques for Up-scaling of Stimulated Ureolytic Microbially-Induced Calcite Precipitation”, InterPore 2018, New Orleans, LA, May 14-17, 2018.
  12. Burrall, M., Huang, L., DeJong, J.T., Wilson, and Martinez, A. “Dynamics of Sequential Failure of Tree Root Foundations”, Engineering Mechanics Institute Conference 2019, Los Angeles, California, June 18-21, 2019. 
  13. Chen, Y., Martinez, A., and DeJong, J.T. “A DEM study of the interaction between multiple anchors of a bio-inspired probe”, Engineering Mechanics Institute Conference 2019, Los Angeles, California, June 18-21, 2019. 
  14. Chen, Y., DeJong, J.T., Jaeger, R.A., and Martinez, A. “Scaling of burrowing resistances with sediment depth: a geomechanical perspective.” Society for Integrative and Comparative Biology (SICB) Meeting, 2021.
  15. Gardner, M., Khan, H., Buttery, S., Ham, S.M., DeJong, J.T., Wilson, D. “Hypergravity Testing of Thawing Rates in Permafrost.” AGU Fall Meeting Abstracts, 2024, C43F-07, https://agu.confex.com/agu/agu24/meetingapp.cgi/Paper/1559696.
  16. Kim, Y.A., Burrall, M., DeJong, J.T., Martinez, A., Kwon, T.H. “Physical Modeling on Pullout Behaviors of Root-inspired Anchors: Emphasis on interplays among architectural complexity, embedment depth and material stiffness.” 4th Asia-Pacific Conference on Physical Modeling in Geotechnics, 2024. 

Curated Datasets

  1. Park, D.S., Kutter, B., and DeJong, J.T. (2013). Stability of Sensitive Clay Slopes. Network for Earthquake Engineering Simulation (distributor), Dataset. DOI: 10.4231/D3MC8RG3C
  2. Montoya, B., DeJong, J.T., and Boulanger, R.W. (2013). “MICP-07 Untreated Loose Sand”, Network for Earthquake Engineering Simulation (database), Dataset, DOI:10.4231/D3HM52J97
  3. Parra Bastidas, A.M., Boulanger, R.W., Carey, T.J., and DeJong, J.T. (2016). “Ottawa F-65 Sand Data from Ana Maria Parra Bastidas”. NEEShub, Dataset,  http://dx.doi.org/10.17603/DS2MW2R
  4. DeJong, J.T. and Boulanger, R.W. (2018). “Direct simple shear testing for silica silt and kaolin mixtures”, DesignSafe-CI, Dataset, doi:10.17603/DS2SQ30
  5. Boulanger, R.W. and DeJong, J.T. (2018), “Centrifuge modelling of variable rate cone penetration in low-plasticity silts”, DesignSafe-CI, Dataset, doi:10.17603/DS2J67J
  6. Boulanger, R.W. and DeJong, J.T. (2018). “Effect of strain history on cone penetration resistance and cyclic strength of saturated sand”, DesignSafe-CI, Dataset, doi:10.17603/DS24T25
  7. DeJong, J.T. and Boulanger, R.W. (2018). “One-dimensional compression testing for low-plasticity silts”, DesignSafe-CI, Dataset, doi:10.17603/DS2839G
  8. Boulanger, R.W., DeJong, J.T., Darby, K., and Bronner, J. (2018). “PRJ-2014: Effect of prior strain history on cone penetration resistance and cyclic strength of saturated sand: 1-m radius centrifuge tests”, DesignSafe-CI [publisher], Dataset, doi:10.17603/DS25T13. 
  9. Hernandez, G., Darby, K., DeJong, J.T., Boulanger, R.W., and Wilson, D. (2020). “PRJ-2013: Liquefaction resistance of MICP treated sands”, DesingSafe-CI [publisher], Dataset, [multiple DOIs].
  10. Khosravi, M., Khosravi, A., Boulanger, R.W., DeJong, J.T., Wilson, D., and Hajialilue Bonab, D. (2021). “PRJ-1844: Liquefaction evaluations of finely interlayered sands, silts, and clays”, DesignSafe-CI, Dataset, 10.17603/ds2-t4kz-0c30.
  11. Darby, K., J. DeJong, R. Boulanger, J. Bronner (2018). “Small centrifuge tests”, in Effect of prior strain history on cone penetration resistance and cyclic strength of saturated sand: 1-m radius centrifuge tests. DesignSafe-CI. https://doi.org/10.17603/DS22402.
  12. Martinez, A., DeJong, J., Ahmed, S.S. (2022). “PRJ3732: Isotropically-consolidated drained and undrained triaxial compression tests on soils of varying gradation”, DesignSafe-CI, Dataset, https://doi.org/10.17603/ds2-crtg-j217.
  13. Dahl, K., J. DeJong, R. Boulanger, R. Pyke, D. Wahl, U. Eliahu, P. Espinosa, A. Sahin (2025). “Potrero Canyon Site Investigation and Laboratory Test Results”, in Site Investigation Efforts and Cyclic Laboratory Tests on Potrero Canyon. DesignSafe-CI. https://doi.org/10.17603/ds2-c5xq-ra48. 
  14. Gardner, M., S. Buttery, S. Ham, H. Khan, J. DeJong (2025). “Hypergravity Testing of Thawing Rates in Frozen Sand – Dense and Loose F65 Ottowa Sand”, in Hypergravity Testing of Thawing Rates in Frozen Sand. DesignSafe-CI. https://doi.org/10.17603/ds2-mwar-sp11. 

Conference Proceedings

  1. Mayne, P.W., Rathje, E., DeJong, J., Rechenmacher, A., Yamamuro, J., Sharma, S., and Willson, C. Site Characterization and Modeling, American Society of Civil Engineers Geotechnical Special Publication 138, Geo-Frontiers 2005 Austin Conference, 2005.
  2. DeGroot, D., DeJong, J.T., Frost, J.D., and Baise, L. Proceedings of Geotechnical Engineering in the Information Technology Age Conference, GeoCongress Atlanta 2006, February 26 – March 1, 2006.

Reports

  1. Mayne, P.W., Christopher, B.R., and DeJong, J.T. Manual on Subsurface Investigations. FHWA Publication No. FHWA-NHI-01-031, 2002, 394 pgs.
  2. Westgate, Z.J. and DeJong, J.T. Geotechnical Considerations for Offshore Wind Turbines Report. MTC OTC Project, 2005, 130 pgs.
  3. DeJong, J., Mortensen, B., and Martinez, B. Bio-Soils Interdisciplinary Science and Engineering Initiative, NSF Final Report for Grant #CMS-0628782, 2008, 85 pgs.
  4. Wair, B.R., DeJong, J.T. and Shantz, T., Guidelines for Estimating Vs Based on In-Situ Tests, PEER Report 2012/08, 2012, 69 pgs.
  5. DeJong, J.T., Thurairajah, A., Wilson, D., and Ghafghazi, M. Reusable Instrumented Test Pile for Improved Pile Design in Granular Soils. Caltrans Report No. CA13-1233, 2013, 282 pgs.
  6. DeJong, J.T. Reusable Instrumented Test Pile – Phase 2, Caltrans Report CA18-2343, April 2018, 252 pp.
  7. Hernandez, G.L., Darby, K.M., DeJong, J.T., and Boulanger, R.W. Centrifuge Model Testing of Liquefaction Mitigation of Sands via Microbially Induced Calcite Precipitation – Centrifuge Data Report for GLH01s, GLH02s, GLH07s, GLH08s, GLH09s, GLH10s, GLH11s, & GLH12s. Center for Geotechnical Modeling Data Report, 2018, Report No. CGMDR-18/03.

Book Chapters

  1. Mayne, P.W., Christopher, B.S., and DeJong, J. (2008). Chapter 9: “Ground Properties” in Geology for Civil Engineers, Thomas Telford Publishing, London, 222-251.
  2.  DeJong, J.T. and Kavazanjian, E. (2019). Chapter 6: “Bio-mediated and Bio-inspired Geotechnics” in Geotechnical Fundamentals for Addressing New World Challenges, Springer.
  3. Raymond, A.J., DeJong, J.T., Kendall, A. Chapter 11: “Life cycle sustainability assessment: A tool for civil engineering research prioritization and project decision making” in Sustainable Geo-Technologies for Climate Change Adaptation, Sprpinger, 2022, 175-184, https://doi.org/10.1007/978-981-19-4074-3. 

Patents

  1. Frost, J.D. and DeJong, J.T. “Multi-Sleeve Cone Penetrometer Attachment” U.S. Patent No. 6701771 (awarded March 9, 2004).
  2. Frost, J.D., Hebeler, G.L., and DeJong, J.T. “Apparatus and Method for Determining In Situ Pore Fluid and Soil Properties Using Multi-Sensor Measurement Systems”, U.S. Patent No. 7,201,060 B2 (awarded April 10, 2007).