Shear wave velocity profiling and evaluation of liquefaction potential in northeast Arkansas using simplified equipment

A. Elsayed; S. Haran

doi:10.1117/12.847718

8 April 2010 Shear wave velocity profiling and evaluation of liquefaction potential in northeast Arkansas using simplified equipment

A. Elsayed, S. Haran

Author Affiliations +

Proceedings Volume 7650, Health Monitoring of Structural and Biological Systems 2010; 76500W (2010) https://doi.org/10.1117/12.847718
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2010, San Diego, California, United States

Abstract

Soil liquefaction in Northeast Arkansas (NEA) is expected to result in substantial damage during seismic events. Insitu shear wave velocity (V_s) profile of the subsurface, to a depth of at least 30-meters (according to the International Building Code or IBC), is necessary for determining the "Site Class", which is subsequently used in the structural analysis of buildings, and can be used as a screening tool to evaluate the depth and thickness of potentially liquefiable soil layers. Shear wave velocity profiles at 3 sites in Craighead County, AR were determined utilizing simplified equipment by means of a non-invasive technique. The results indicated good agreement with previous work performed by other researchers. These profiles were used to evaluate the liquefaction resistance at these sites using the simplified procedure by Seed and Idriss (V_s approach). The liquefaction resistance was also evaluated using the Standard Penetration Test (SPT approach) results from the geotechnical investigations that were conducted by others. The equipment and procedure should allow governmental agencies and engineering professional to determine the shear wave velocity profiles of the upper soil zones at relatively low cost. These profiles can aid different agencies in mapping areas of interest and assessing seismic hazard potential during planning future development or evaluating current facilities.

Citation Download Citation

A. Elsayed and S. Haran "Shear wave velocity profiling and evaluation of liquefaction potential in northeast Arkansas using simplified equipment", Proc. SPIE 7650, Health Monitoring of Structural and Biological Systems 2010, 76500W (8 April 2010); https://doi.org/10.1117/12.847718

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