Location
Arlington, Virginia
Date
14 Aug 2008, 2:15pm - 4:00pm
Abstract
Current practice for assessing liquefaction potential of granular soils depends heavily on in situ indices of density, and sometimes direct measurements of density. Correlations have been developed to predict resistance to liquefaction as a function of standard penetration test (SPT) blow count, cone penetrometer (CPT) tip resistance, shear-wave velocity (VS), or other index property. Recognizing that each correlation entails its own uncertainties, and that different indices of liquefaction potential may provide conflicting conclusions, the Bureau of Reclamation reviewed in situ test results from a large number of sites where multiple tests had been used. The goals were to 1) evaluate consistency among the various indices of liquefaction potential, 2) compare indirect indices of density, such as penetration resistance, against actual density measurements, and 3) survey current practice throughout the industry. This paper will provide a summary of the results.
Department(s)
Civil, Architectural and Environmental Engineering
Meeting Name
6th Conference of the International Conference on Case Histories in Geotechnical Engineering
Publisher
Missouri University of Science and Technology
Document Version
Final Version
Rights
© 2008 Missouri University of Science and Technology, All rights reserved.
Creative Commons Licensing
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.
Document Type
Article - Conference proceedings
File Type
text
Language
English
Recommended Citation
Gillette, David Rees, "Review of In Situ Measurements as Indications of Liquefaction Potential at Numerous Sites" (2008). International Conference on Case Histories in Geotechnical Engineering. 36.
https://scholarsmine.mst.edu/icchge/6icchge/session07/36
Review of In Situ Measurements as Indications of Liquefaction Potential at Numerous Sites
Arlington, Virginia
Current practice for assessing liquefaction potential of granular soils depends heavily on in situ indices of density, and sometimes direct measurements of density. Correlations have been developed to predict resistance to liquefaction as a function of standard penetration test (SPT) blow count, cone penetrometer (CPT) tip resistance, shear-wave velocity (VS), or other index property. Recognizing that each correlation entails its own uncertainties, and that different indices of liquefaction potential may provide conflicting conclusions, the Bureau of Reclamation reviewed in situ test results from a large number of sites where multiple tests had been used. The goals were to 1) evaluate consistency among the various indices of liquefaction potential, 2) compare indirect indices of density, such as penetration resistance, against actual density measurements, and 3) survey current practice throughout the industry. This paper will provide a summary of the results.
