Location

San Diego, California

Session Start Date

5-24-2010

Session End Date

5-29-2010

Abstract

Evaluation of liquefaction-induced lateral spreading is very important for the design of structures located on gently sloping ground and with relatively shallow groundwater. Extensive research has been performed on the calculation of liquefaction-induced lateral spreading based on the standard penetration test (SPT) and cone penetration test (CPT) data by various researchers (Bartlett and Youd 1992, 1995, Rauch, 1997; Zhang et al., 2004; Idriss and Boulanger, 2008). However, few published papers can be found that address the calculation of liquefaction-induced lateral spreading based on shear wave velocity. This paper presents a procedure to evaluate liquefaction-induced lateral spreading directly based on shear wave velocity. New empirical relationships for factor of safety against liquefaction, maximum shear strain, and shear wave velocity are developed based on the laboratory tests performed at the University of Tokyo (Ishihara and Yoshimine 1992, Yoshimine et al. 2006). The results calculated utilizing this new procedure are compared with those based on SPT and CPT data using existing methods. The results indicate good agreement. This approach not only provides a new method for estimating the liquefaction-induced lateral spreading directly from shear wave velocity data but also provides a cost effective tool for verification of CPT results because of the small cost increase in measuring shear wave velocity during the standard CPT testing.

Department(s)

Civil, Architectural and Environmental Engineering

Appears In

International Conferences on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics

Meeting Name

Fifth Conference

Publisher

Missouri University of Science and Technology

Publication Date

5-24-2010

Document Version

Final Version

Rights

© 2010 Missouri University of Science and Technology, All rights reserved.

Document Type

Article - Conference proceedings

File Type

text

Language

English

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May 24th, 12:00 AM May 29th, 12:00 AM

Procedure to Evaluate Liquefaction-Induced Lateral Spreading Based on Shear Wave Velocity

San Diego, California

Evaluation of liquefaction-induced lateral spreading is very important for the design of structures located on gently sloping ground and with relatively shallow groundwater. Extensive research has been performed on the calculation of liquefaction-induced lateral spreading based on the standard penetration test (SPT) and cone penetration test (CPT) data by various researchers (Bartlett and Youd 1992, 1995, Rauch, 1997; Zhang et al., 2004; Idriss and Boulanger, 2008). However, few published papers can be found that address the calculation of liquefaction-induced lateral spreading based on shear wave velocity. This paper presents a procedure to evaluate liquefaction-induced lateral spreading directly based on shear wave velocity. New empirical relationships for factor of safety against liquefaction, maximum shear strain, and shear wave velocity are developed based on the laboratory tests performed at the University of Tokyo (Ishihara and Yoshimine 1992, Yoshimine et al. 2006). The results calculated utilizing this new procedure are compared with those based on SPT and CPT data using existing methods. The results indicate good agreement. This approach not only provides a new method for estimating the liquefaction-induced lateral spreading directly from shear wave velocity data but also provides a cost effective tool for verification of CPT results because of the small cost increase in measuring shear wave velocity during the standard CPT testing.