Location

San Diego, California

Session Start Date

3-26-2001

Session End Date

3-31-2001

Abstract

It is important to evaluate resistance strength of foundation and the subgrade reaction of soil surrounding the foundation during an earthquake when a bridge is constructed on liquefiable ground. In this study, we evaluated reduction coefficient of the horizontal subgrade reaction during liquefaction DE based on shaking table tests. We examined the influence of liquefaction resistance factor FL, subgrade shear strain amplitude and velocity of the ground on the reduction coefficient DE from the test results. We made model grounds varying relative soil density in a container, which was placed on a shaking table. A piston was installed on the side wall of the container, and penetration force was measured as horizontal subgrade reaction when the piston was penetrated into the liquefied soil.

Department(s)

Civil, Architectural and Environmental Engineering

Appears In

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

Meeting Name

Fourth Conference

Publisher

University of Missouri--Rolla

Publication Date

3-26-2001

Document Version

Final Version

Rights

© 2001 University of Missouri--Rolla, All rights reserved.

Document Type

Article - Conference proceedings

File Type

text

Language

English

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Mar 26th, 12:00 AM Mar 31st, 12:00 AM

Experimental Study on Reduction of the Horizontal Subgrade Reaction due to Liquefaction

San Diego, California

It is important to evaluate resistance strength of foundation and the subgrade reaction of soil surrounding the foundation during an earthquake when a bridge is constructed on liquefiable ground. In this study, we evaluated reduction coefficient of the horizontal subgrade reaction during liquefaction DE based on shaking table tests. We examined the influence of liquefaction resistance factor FL, subgrade shear strain amplitude and velocity of the ground on the reduction coefficient DE from the test results. We made model grounds varying relative soil density in a container, which was placed on a shaking table. A piston was installed on the side wall of the container, and penetration force was measured as horizontal subgrade reaction when the piston was penetrated into the liquefied soil.