Project Grant 2317660

Award Date 5/1/23
Completion Date 4/30/24
Dollars Obligated $114K
Federal Grant Program
47.041
Assistance Type
Project Grant
Place of Performance
Austin, TX 78712, USA
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Through this funding, UT Austin will characterize the strain-based liquefaction susceptibility relationship for Hawaiian calcareous sand and compare it to established relationships for quartz sands. Researchers will examine the dependency of cyclic behavior on initial soil state and effective stress, and collect in situ cone penetration and shear wave velocity data to relate to laboratory cyclic strength testing. In situ cyclic testing will utilize the NSF-supported T-Rex mobile shaker at the University of Texas to investigate shear strain and excess pore pressure generation below 2 meters depth. Accompanying laboratory testing will characterize the cyclic behavior of sampled calcareous sand under expanded conditions. Results seek to improve earthquake preparedness in Hawaii and further the fundamental understanding of this locally abundant material.

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