2019
Journal Articles:
Salazar, S.E., Coffman, R.A. (2019). “Multi-Channel Optical Receiver for Ground-Based Topographic Hyperspectral Remote Sensing.” Journal of Remote Sensing. Vol. 11, No. 5, 578; doi:10.3390/rs11050578. Link
Salazar, S.E., Garner, C.D., Coffman, R.A. (2019). “Development of a Multimode Field Deployable Lidar Instrument for Topographic Measurements of Unsaturated Soil Properties: Instrument Description.” Journal of Remote Sensing. Vol. 11, No. 3, 289; doi:10.3390/rs11030289. Link
Vishnu, C.L., Sajinkumar, K.S., Oommen, T., Coffman, R.A., Thrivikramji, K.P., Rani, V.E., Keerthy, S., (2019). Satellite-based Assessment of the August 2018 Flood in Parts of Kerala, India. Geomatics, Natural Hazards and Risk. Vol. 10, No. 1, doi: 10.1080/19475705.2018.1543212. Link
Conference Proceedings:
Kevan, L.I., Rollins, K.M., Coffman, R.A., Ishimwe, E., (2019). “Full-scale Blast Liquefaction Testing in Arkansas USA to Evaluate Pile Downdrag and Neutral Plane Concepts.” Seventh International Conference on Earthquake Geotechnical Engineering. Roma, Italy. July 17-20. Link
2018
Journal Articles:
Salazar, S.E., Barnes, A.R., Miramontes, L.D., Bernhardt, M.L., Coffman, R.A., (2018). “Validation of an Internal Cameral Based Volume Determination System for Triaxial Testing.” Geotechnical Testing Journal. (in press). doi: 10.1520/GTJ20170125. Link
Ishimwe, E., Blanchard, J.D., Coffman, R.A., (2018). “Field-obtained Soil Water Characteristic Curves and Hydraulic Conductivity Functions.” Journal of Irrigation and Drainage Engineering. Journal of Irrigation and Drainage Engineering, Vol. 144, No. 1, pp. 1-12. doi: 10.1061/(ASCE)IR.1943-4774.0001272. Link
Ishimwe, E., Garner, C.D., Coffman, R.A., (2018). “Full-scale Thermo-Hydro-Mechanical Properties of Vertical Flow Bed Treatment Soils.” Geotechnical and Geological Engineering. Vol. 36, pp. 2735-2748. doi: 10.1007/s10706-018-0495-x. Link
Zhao, Y., Mahmood, N.S., Coffman, R.A., (2018). “Small-strain and Large-strain Modulus Measurements with a Consolidation Device.” Journal of Testing and Evaluation. Vol. 47, No. 2, pp. 1-26. doi: 10.1520/JTE20160331. Link
Conference Proceedings:
Ishimwe, E., Coffman, R.A., Rollins, K.M., (2018). “Analysis of Post-Liquefaction Axial Capacities of Driven Pile and Drilled Shaft Foundations,” Proceedings of ASCE Geo-Institute International Foundations Conference and Equipment Expo. Orlando, FL, March 5-10, 2018. Link
2017
Journal Articles:
Race, M.L., Coffman, R.A., (2017). “Drilled Shaft Foundation Construction Problems.” International Journal of Geotechnical Engineering. pp. 1-13. doi: 10.1080/19386362.2016.1250042. Link
Salazar, S.E., Barnes, A.R., Coffman, R.A., (2017). “Closure to “Discussion of ‘Development of an Internal Camera-Based Volume Determination System for Triaxial Testing’ by S.E. Salazar, A. Barnes and R.A. Coffman” by A. Mehdizadeh, M.M. Disfani, R. Evans, A. Arulrajah and D.E.L. Ong.” Geotechnical Testing Journal. Vol 40, No. 1, pp. 47-51. doi: 10.1520/GTJ20160154. Link
Kern, A.N., Addison, P., Oommen, T., Salazar, S.E., Coffman, R.A., (2017). “Machine Learning Based Predictive Modeling of Debris Flow Probability Following Wildfire in the Intermountain Western United States.” Mathematical Geosciences. Vol. 49, No. 6, pp. 717-735. doi: 10.1007/s11004-017-9681-2. Link
2016
Journal Articles:.
Garner, C.D., Coffman, R.A., (2016). “Volumetric Water Content as Obtained from Remote Sensing and In-Situ Instrumentation.” Journal of Environmental and Engineering Geophysics. Vol. 21, No. 4, pp. 151-160. doi:10.2113/JEEG21.4.151. Link
Zhao, Y., Coffman, R.A., (2016). “Back-Pressure Saturated Constant-Rate-of-Strain Consolidation Device with Bender Elements: Verification of System Compliance.” Journal of Testing and Evaluation. Vol. 44, No. 6, doi: 10.1520/JTE20140291. Link
2015
Journal Articles:
Salazar, S.E., Barnes, A.R., Coffman, R.A., (2015). “Development of an Internal Camera Based Volume Determination System for Triaxial Testing.” Geotechnical Testing Journal. Vol. 38, No. 4, pp. 1-7. doi: 10.1520/GTJ20140249. Link
Salazar, S.E., Coffman, R.A., (2015). “Discussion of A Photogrammetry-based Method to Measure Total and Local Volume Changes of Unsaturated Soils During Triaxial Testing by X. Zhang, L. Li, G. Chen, and R. Lytton.” Acta Geotechnica. Vol. 10, Issue 4, pp. 1-4. doi: 10.1007/s11440-014-0346-8. Link
Race, M.L., Coffman, R.A., (2015). “Response of Drilled Shaft Foundation Constructed in Redrilled Shaft Excavation Following Collapse.” Deep Foundations Institute Journal. Vol. 9, No. 2, pp. 60-73. doi:10.1179/1937524715Z.00000000020. Link
Race, M.L., Coffman, R.A., (2015). “Load Tests on Drilled Shaft Foundations in Moderately Strong to Strong Limestone.” Deep Foundations Institute Journal, Vol. 9, Issue 1. pp. 1-10. doi:10.1179/1937525514Y.0000000004. Link
Race, M.L., Bey, S.M., Coffman, R.A., (2015). “Statistical Analysis to Determine Appropriate Design Methodologies for Drilled Shafts Foundations.” Geotechnical and Geological Engineering. Vol. 33, Issue 3, pp. 713-726. doi:10.1007/s10706-015-9854-z. Link
Salazar, S.E., Coffman, R.A., (2015). “Consideration of Internal Board Camera Optics for Triaxial Testing Applications.” Geotechnical Testing Journal. Vol. 38, No. 1, pp. 1-11. doi:10.1520/GTJ20140163. Link
2014
Journal Articles:
Coffman, R.A., Salazar, S.E., Zhao, Y. (2014). “Discussion of Measurement of Stiffness Anisotropy in Kaolinite Using Bender Element Tests in a Floating Wall Consolidometer by X. Kang, G.-C. Kang, B. Bate” Geotechnical Testing Journal. Vol. 37, No. 6, pp. 1-5. doi:10.1520/GTJ20140162. Link
Salazar, S.E., Coffman, R.A., (2014). “Design and Fabrication of End Platens for Acquisition of Small-Strain Piezoelectric Measurements during Large-Strain Triaxial Extension and Triaxial Compression Testing.” Geotechnical Testing Journal, Vol. 37, No. 6., pp. 1-12. doi:10.1520/GTJ20140057. Link
Coffman, R.A., Garner, C.D., Salazar, S.E., (2014). “The Development and Implementation of a Tunnel Characterization Method.” Geomechanics and Tunneling. Vol. 7, No. 2, pp. 178-184. Link
Garner, C.D., Coffman, R.A., (2014). “Discussion of Transparent Soil as a Substitute for Natural Soils in Geotechnical Modeling.” The Electronic Journal of Geotechnical Engineering. Vol. 19, Bundle E, pp. 1101-1108. Link
Conference Proceedings:
Garner, C.D., Coffman, R.A., (2014). “Remote Sensing Methods for Monitoring Ground Surface Deformation of Compacted Clay Test Sections.” ASCE Geotechnical Special Publication No. 234, Proc. GeoCongress 2014: Geo-Characterization and Modeling for Sustainability, Atlanta, Georgia, February, pp. 963-978. Link
2013
Journal Articles:
Garner, C.D., Coffman, R.A., (2013). “Subway Tunnel Design Using A Ground Surface Settlement Profile to Characterize an Acceptable Configuration.” Tunneling and Underground Space Technology. Vol. 35, pp. 219-226. Link
Race, M.L., Bey, S.M., Coffman, R.A., (2013). “Discussion of Implementation of LRFD of Drilled Shafts in Louisiana by Xinbao Yu, Murad Y. Abu-Farsakh, Sungmin Yoon, Ching Tsai, and Zhongjie Zhang.” Journal of Infrastructure Systems. Vol. 19, No. 3, pp. 351-353. Link
Conference Proceedings:
Conte, O.A., Coffman, R.A., (2013). “Characterization of Landslides by Advanced Remote Sensing Techniques, Standard Monitoring Techniques, and Laboratory Testing.” ASCE Geotechnical Special Publication No. 231, Proc. GeoCongress 2013: Stability and Performance of Slopes and Embankments III, San Diego, California, March, pp. 289-303. Link
Race, M.L., Coffman, R.A., (2013). “Effect of Uncertainty in Site Characterization on the Prediction of Liquefaction Potential for Bridge Embankments in the Mississippi Embayment.” ASCE Geotechnical Special Publication No. 231, Proc. GeoCongress 2013: Stability and Performance of Slopes and Embankments III, San Diego, California, March, pp. 888-897. Link
2012
Conference Proceedings:
Conte, O.A., Coffman, R.A., (2012). “Slope Stability Monitoring Using Remote Sensing Techniques.” ASCE Geotechnical Special Publication No. 225, Proc. GeoCongress 2012: State of the Art and Practice in Geotechnical Engineering, Oakland, California, March, pp. 3060-3068. Link
Maldonado, C.A., Coffman, R.A., (2012). “Hydraulic Conductivity of Environmentally Controlled Landfill Liner Test Pad.” ASCE Geotechnical Special Publication No. 225, Proc. GeoCongress 2012: State of the Art and Practice in Geotechnical Engineering, Oakland, California, March, pp. 3593-3602. Link
2011
Conference Proceedings:
Coffman, R.A., Hale, W.M., (2011). “Faculty and Student Involvement in a Graduate Level Civil Engineering Seminar Series.” Paper No. 2364, Proc., American Society for Engineering Education 2011 Annual Conference and Exposition, Vancouver, BC, Canada, June, 5 pages. Link
Gilbert, T.B., Blanchard, M.C., Nanak, M.J., Coffman, R.A., (2011). “Evaluation of a Centrifuge Consolidation Technique for Preparation of Direct Simple Shear Samples.” ASCE Geotechnical Special Publication No. 211, Proc. GeoFrontiers 2011: Advances in Geotechnical Engineering, Dallas, Texas, March, pp. 2776-2785. Link
Hale, W.M., Coffman, R.A., (2011). “Observations from an Engineering Writing Project.” Paper No. 1455, Proc., American Society for Engineering Education 2011 Annual Conference and Exposition, Vancouver, BC, Canada, June, 7 pages. Link
Race, M.L., Coffman, R.A., (2011). “Effects of Piston Uplift, Piston Friction, and Machine Deflection in Reduced Triaxial Extension Testing.” ASCE Geotechnical Special Publication No. 211, Proc. GeoFrontiers 2011: Advances in Geotechnical Engineering, Dallas, Texas, March, pp. 2649-2658. Link
2010
Conference Proceedings:
Coffman, R.A., Bowders, J.J., Burton, P.M., (2010). “Use of SHANSEP Design Parameters in Landfill Design: A Cost/Benefit Case Study.” ASCE Geotechnical Special Publication No. 199, Proc. GeoFlorida 2010: Advances in Analysis, Modeling and Design, West Palm Beach, Florida, February, pp. 2859-2866. Link
Coffman, R.A., Bowders, J.J., Huaco, D.R., (2010). “GeoWall: Creativity, Statistics, and Reliability.” ASCE Geotechnical Special Publication No. 199, Proc. GeoFlorida 2010: Advances in Analysis, Modeling and Design, West Palm Beach, Florida, February, pp. 3305-3314. Link