The University of Texas at Austin received a $114,385 project grant from the National Science Foundation Division of Civil, Mechanical, and Manufacturing Innovation to investigate the liquefaction susceptibility of calcareous sand in Hawaii. The grant supports rapid response research from May 1, 2023 to April 30, 2024 under the NSF Engineering program (CFDA 47.041). 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.
Mod # | Description | Reason For Modification | Federal Obligation (Click to sort descending) | Date (Click to sort ascending) |
|---|---|---|---|---|
| Not listed | $114.4k | 5/19/23 |