Journal Editor Positions: 

Computers and Geotechnics, co-Editor in Chief

Canadian Geotechnical Journal, Associate Editor

ASTM Geotechnical Testing Journal, Editorial Board Member

Geosynthetics International, Editorial Board Member

Geomechanics for Energy and the Environment, Editorial Board Member

Taiwanese Journal of GeoEngineering, Editorial Board Member

Transportation Geotechnics, Editorial Board Member

Past Editor Positions:

Journal of Geotechnical and Geoenvironmental Engineering, Editor (2015-2022), Associate Editor (2010-2022)

Soils and Foundations, Editorial Board Member (2014-2019)

Géotechnique Letters, Editorial Panel (2016-2019)

Geotechnical and Geological Engineering, Associate Editor (2016-2018)

Guest Editor for Special Issues: 

Guest Editor (2021), Soils and Rocks, Special Issue on “Thermal Applications in Geotechnical Engineering.”

Guest Editor (2019-2020), ASTM Geotechnical Testing Journal, Special Issue on “Advances in Laboratory Experimentation for Unsaturated Soils.”

Guest Editor (2015), Environmental Geotechnics, Special Issue on “Thermal Remediation of Contaminated Soils.”

Guest Editor (2014), Journal of Geotechnical and Geological Engineering, Special Issue on “Thermo-mechanical Response of Soils, Rocks, and Energy Geostructures.”

Guest Editor (2013), Acta Geotechnica, Special Issue on “Thermo-Active Geotechnical Systems for Near-Surface Geothermal Energy.”

Guest Editor (2010-2011), ASTM Geotechnical Testing Journal, Special Issue on “Innovations in Characterizing the Mechanical and Hydrological Properties of Unsaturated Soils.”

Technical Committee Leadership

GeoInstitute of ASCE Unsaturated Soils Committee, Chair (2019-present), Vice-Chair (2013-2019), Secretary (2009-2013), Member (2007-present)

GeoInstitute of ASCE Geoenvironmental Engineering Committee, Member (2013-present)

GeoInstitute of ASCE Energy Geotechnics Task Force, Vice-Chair (2023-present)

ISSMGE TC 308 on Energy Geotechnics, Webmaster and Task Force Leader on Public Outreach

ASTM D18.04 Hydrologic Properties and Hydraulic Barriers, Member (2007-present), Chair (2017-2018), Vice-Chair (2007-2016)

ASTM D18.09 Dynamic and Cyclic Properties of Soils, Member (2007-present), Chair (2010-2016), Vice-Chair (2009-2010)

IGS North America, Member (2007-present), Past-President (2021-2023), President (2019-2021), President-Elect (2017-2019), Secretary (2017-2018), Treasurer (2015-2017)

Conference Organization

American Society of Civil Engineers

• Conference Co-Chair with L. Hoyos. 2nd Pan American Conference on Unsaturated Soils. Dallas-Ft Worth, TX. Oct. 2017.

• Session Chair with X. Yu. "Thermal Energy Systems." GeoChicago 2016. Chicago, IL. Aug. 2016.

• Session Chair with M. Suleiman and C.G. Olgun. “Geothermal Energy Foundations.” IFCEE 2015. San Antonio, TX. Mar. 17-21, 2015.

• Session Chair with W. Likos, J. Tinjum and C. Zapata. “Characterization and Modeling of Soil Thermal Behavior for Sustainable Geotechnics.” GeoCongress 2014. Atlanta, GA. Feb. 23-26, 2014.

• Student Activities Chair with R. Coffman. GeoCongress 2014. Atlanta, GA. Feb. 23-26, 2014.

• Session Chair with C.G. Olgun. “Thermally Active Geotechnical Engineering Systems.” GeoCongress 2012, Oakland, CA. Mar. 25-29, 2012.

• Session Chair with M. Khire. “Hydraulic Properties and Hydrology of Waste Containment Systems.” GeoCongress 2012, Oakland, CA. Mar. 25-29, 2012.

• Session Chair with L. Ge. “Unsaturated Soil Modeling in Engineering Practice.” GeoFlorida 2010, West Palm Beach, FL. Feb. 24, 2010.

ASTM International

• Session Chair Symposium on Cyclic and Dynamic Properties of Soil and Rock: Laboratory and Field. San Diego, CA. Jun. 28-29, 2012.

• Chair and Organizer “ASTM Workshop: Innovations in Characterizing the Mechanical and Hydrological Properties of Unsaturated Soils” Jun. 25th, 2012.  

International Society of Soil Mechanics and Geotechnical Engineering

• Conference Co-Chair with Majid Ghayoomi: 9th International Conference on Unsaturated Soils. Boston, MA, 2027.

• Conference Co-Chair with Ingrid Tomac. 2nd International Conference on Energy Geotechnics. La Jolla, CA. April 10-13, 2022.

• Session Chair “Plenary Session 3” ICEG 2014. Melbourne, Australia. November 11-14, 2014. Sponsored by Technical Committee TC 215.

• Session Chair “Numerical Modeling 3.” UNSAT 2014. Sydney, Australia. Jul. 2-4, 2014. Sponsored by Technical Committee TC 106.

• Editor 8th International Conference on Physical Modeling in Geotechnics. Perth, Australia. Jan. 14-17, 2014. Sponsored by Technical Committee TC 104. 

• Session Chair “Experimental Unsaturated Soil Mechanics.” AP-Unsat 5, Pattaya, Thailand, Feb. 29-Mar. 2, 2012. Sponsored by Technical Committee TC 106.

Transportation Research Board

• Session Organizer “Impacts of Unsaturated Soil Conditions on Field Pavement Deformation Tests.” 91st TRB Annual Meeting. Jan. 22-26, 2012.

• Session Chair “Reinforcement of Pavement Systems.” Bearing Capacity of Roads, Railroads, and Airfields (BCR2A). Champaign, IL. Jun. 29, 2009. 

International Geosynthetics Society

• Technical Committee Co-Chair with R. Brachman. GeoAmericas 2024. Toronto, ON. Apr. 29-May 1 2024.

• Student Activities Co-Chair with R. Gupta. GeoAmericas 2016. Miami, FL. Apr. 11-14 2016

• Technical Sessions Co-Chair with J. McKelvey. Geosynthetics 2015, Portland, OR. Feb. 15-18, 2015.

• Session Chair with G. Bräu. “Geosynthetics in Highways and Railways.” IGC 2010, Guaruja, Brazil. May 24, 2010. 

• Session Chair with O. Vilar. “Geosynthetics in Unsaturated Soils.” GeoAmericas 2008, Cancun, Mexico. May 15, 2008. 

• Conference Assistant “Geosynthetics in Hydraulic Engineering Applications.” May 15, 2003. University of Colorado at Boulder.