Garry H. Gregory, Ph.D., P.E., D.GE
Research Interests
Dr. Gregory's research includes: Computer Analysis of Soil Slopes; Shear Strength of Fully-Softened Clays; Geosynthetics for Soil Reinforcement and Stabilization; Subsurface Stabilization of Problematic Soils; and Finite Element Analysis of Soil-Structure Interaction. He has been a pioneer in the use of fiber-reinforced soil (FRS) for slope stabilization, including extensive research and full-scale project applications involving laboratory shear strength testing, computer modeling, and field QA/QC activities during construction on approximately 25 projects, including the two largest slope applications of FRS to date.
Education
- Ph.D. - Civil Engineering, Oklahoma State University, Stillwater, OK, 2006
- M.S. - Civil Engineering, South Dakota School of Mines & Technology, 1993
- B.S. - Civil Engineering, Oklahoma City University, Oklahoma City, OK, 1991
Awards and Recognition
- Diplomate, Geotechnical Engineering (D.GE), Academy of Geo-Professionals (AGP). March 2009
Professional Memberships
- American Society of Civil Engineers (ASCE) - Member
Geo-Institute – Embankments, Dams, and Slopes Committee Co-Chair
Oklahoma Section, Oklahoma City Branch
Oklahoma Chapter of the Geo-Institute-President 2009-2010
Previously served as Fort Worth Branch Director, and Texas Section Director
- International Society of Soil Mechanics and Geotechnical Engineering (ISSMGE) - Member
- United States Universities Council on Geotechnical Education and Research (USUCGER) - Member
- United States Society on Dams (USSD)
Materials for Embankment Dams Committee Member
- Deep Foundations Institute (DFI)
Landslides/Slope Stabilization Committee Member
- Association of Environmental and Engineering Geologists (AEG) - Member
Professional Registrations
- Licensed Professional Engineer (P. E.) in OK, AL, AR, CO, FL, KY, MS, NC, SD, TX, & VA
Current Research Project
- "Correlation of Fully-Softened Shear Strength of Clay Soil with Index Properties - Phase I" - Sponsored jointly by ODOT, ETTL Engineers & Consultants, Inc., and Soil Nail Launcher, Inc.
Recent Publications
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Gregory, Garry H. (2011). “Stabilization of Deep Slope Failure with Drilled Shafts – Lake Ridge Parkway-Station 248, Grand Prairie, TX." 10 pp. Accepted for presentation and publication in peer-reviewed conference proceedings-Geo-Frontiers 2011, Dallas, Texas – ASCE – Geo-Institute, March 2011.
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Gregory, Garry H. (2010) “Stabilization of Problematic Soils Areas – President George Bush Turnpike – Dallas County, Texas, 24 pp.” Proceedings– 61st Highway Geology Symposium – Oklahoma City, Oklahoma, USA – August 2010.
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Gregory, Garry H. (2010). “Geotechnical Design of Retractable Roof Arch Foundations – Cowboys Stadium-Arlington, Texas,” Geotechnical Special Publication (GSP) No. 198-The Art of Foundation Engineering Practice. Mohamad H. Hussein, J. Brian Anderson, and William M. Camp, Editors. American Society of Civil Engineers, pp 295-310.
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Gregory, Garry H. (2010) “Stability of the Galveston Seawall,” pp 67-72, and “Lifelines and Infrastructure,” pp 93-107, published in “Hurricane Ike Field Investigation,” 138 pp. American Society of Civil Engineers report on the field investigation of damage to the Texas Gulf Coast by Hurricane Ike, October 2008 (published 2010), B. Edge, S. Rogers, R. Dean, J. Kaihatu, L. Ewing, M. Loeffler, M. Overton, J. Suzuki, P. Work, G. Gregory, D. Stauble, J. Waters, E. Wiggins, and, M. Garrett, Investigation Team and Editors.
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Gregory, Garry H., and Stephen A. Cross (2007). “Correlation of California Bearing Ratio with Shear Strength Parameters”- 9th International Conference on Low Volume Roads, Transportation Research Record: Journal of the Transportation Research Board, No. 1989 Volume 1, Transportation Research Board, National Research Council, Washington, D.C., June 2007, pp. 148-153.
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