Location

San Diego, California

Session Start Date

5-24-2010

Session End Date

5-29-2010

Abstract

The present study was carried out to propose a relationship between shear wave velocity and N-value for the deltaic region of Kolkata. The relationship was derived from shear wave velocity determined from Cross-Hole test and SPT carried out at Rajarhat, Kolkata. The derived relationship was applied to evaluate the liquefaction susceptibility in terns of factor of safety against liquefaction for the subsoil deposits explored at Rajarhat, Kolkata area and the factor of safety obtained from the derived correlations was compared with those determined from Seed & Idriss (1971) and Andrus and Stokoe (2000). The shear wave velocity method (Andrus & Stokoe, 2000) of evaluating liquefaction potential of cohesionless soil produces lower factor of safety than the method based on SPT as proposed by Seed & Idriss (1971). The liquefiable zone was identified down to about 15m below GL beyond which the subsoil was found not to be liquefaction prone.

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

Prediction of Liquefaction Potential for Kolkata Region by Semi-Empirical Method

San Diego, California

The present study was carried out to propose a relationship between shear wave velocity and N-value for the deltaic region of Kolkata. The relationship was derived from shear wave velocity determined from Cross-Hole test and SPT carried out at Rajarhat, Kolkata. The derived relationship was applied to evaluate the liquefaction susceptibility in terns of factor of safety against liquefaction for the subsoil deposits explored at Rajarhat, Kolkata area and the factor of safety obtained from the derived correlations was compared with those determined from Seed & Idriss (1971) and Andrus and Stokoe (2000). The shear wave velocity method (Andrus & Stokoe, 2000) of evaluating liquefaction potential of cohesionless soil produces lower factor of safety than the method based on SPT as proposed by Seed & Idriss (1971). The liquefiable zone was identified down to about 15m below GL beyond which the subsoil was found not to be liquefaction prone.