Verification of the Soil-Type Specific Correlation between Liquefaction Resistance and Shear-Wave Velocity of Sand by Dynamic Centrifuge Test

Liquefaction of granular soil deposits is one of the major causes of loss resulting from earthquakes. The accuracy of the liquefaction potential assessment at a site affects the safety and economy of an engineering project. Although shear-wave velocity (V and subscript s)-based methods have become prevailing, very few works have addressed the problem of the reliability of various relationships between liquefaction resistance (CRR) and Vs used in practices. In this paper, both cyclic triaxial and dynamic centrifuge model tests were performed on saturated Silica sand No. 8 with V and subscript s measurements using bender elements to investigate the reliability of the CRR-V and subscript s1 correlation previously proposed by the authors. The test results show that the semiempirical CRR-V and subscript s1 curve derived from laboratory liquefaction test of Silica sand No. 8 can accurately classify the (CRR, V and subscript s1) database produced by dynamic centrifuge test of the same sand, while other existing correlations based on various sandy soils will significantly under or overestimate the cyclic resistance of this sand. This study verifies that CRR-V and subscript s1 curve for liquefaction assessment is strongly soil-type dependent, and it is necessary to develop site-specific liquefaction resistance curves from laboratory cyclic tests for engineering practices.

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  • Authors:
    • Zhou, Yan-Guo
    • Chen, Yun-Min
    • Shamoto, Yasuhiro
  • Publication Date: 2010-1

Language

  • English

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Filing Info

  • Accession Number: 01153304
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Mar 20 2010 4:30PM