40 YEARS OF FULL SCALE INFRASTRUCTURE TESTING AT A NATIONAL GEOTECHNICAL EXPERIMENTATION SITE: CLAY SITE


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Abstract


A site at the Texas A&M University RELLIS campus was dedicated to full-scale infrastructure testing in 1978. It was designated as a National Geotechnical Experimentation Site by NSF and FHWA in 1992. The site is made of 12 m of stiff to very stiff clay, within which most experiments took place, and an underlying deep layer of clay shale. The water table is approximately 6 m deep. Over the last 40 years, many full-scale instrumented experiments on infrastructure elements have been conducted at that site. The main projects include grouted anchors, drilled shafts with and without intentional defects, post-grouted drilled shafts, drilled and grouted piles, geothermal piles, soil nails, a pickup truck crashing into a pole founded on a single pile, as well as various mechanical and erosion in-situ tests. Each one of those projects is described and the results and lessons learned from these full-scale infrastructure tests and associated soil tests are reported in this paper; reference to related reports is made for more details on each project.


Keywords


drilled and grouted piles, grouted anchors, soil nails, post-grouted drilled shafts, defects in drilled shafts, geothermal piles, in-situ tests, laboratory tests, full-scale testing

Citation


BRIAUD, J. (2021). 40 YEARS OF FULL SCALE INFRASTRUCTURE TESTING AT A NATIONAL GEOTECHNICAL EXPERIMENTATION SITE: CLAY SITE, Vol. 6, Issue 3, p.1-24. doi: 10.4417/IJGCH-06-03-01




DOI: http://dx.doi.org/10.4417/IJGCH-06-03-01

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