Location

San Diego, California

Session Start Date

3-26-2001

Session End Date

3-31-2001

Abstract

In this paper, we present and discuss an automated analysis procedure for interpreting results from torsional cylindrical impulse shear tests. The “impulse shear test” is an in situ geotechnical test that provides detailed information on in situ nonlinear inelastic shearing deformation characteristics needed for dynamic geotechnical earthquake engineering analysis procedures. The test addresses the issue of effects of disturbances to in situ conditions. The automated analysis procedure is intended to be a major improvement over our existing approach for interpreting results from impulse shear tests. We demonstrate the automated analysis procedure by using the procedure to interpret results from impulse shear tests conducted at the National Geotechnical Experimentation Site at the University of Massachusetts in Amherst, Massachusetts. The site consists of soft to stiff silty clays. The automated analysis procedure was found to produce reasonable results and to be highly efficient, allowing the soil characteristics of interest to be inferred in the field. Additionally, the need for judgment in interpreting results from impulse shear tests is eliminated.

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

Automated Analysis Procedure for Interpreting Results from Impulse Shear Tests

San Diego, California

In this paper, we present and discuss an automated analysis procedure for interpreting results from torsional cylindrical impulse shear tests. The “impulse shear test” is an in situ geotechnical test that provides detailed information on in situ nonlinear inelastic shearing deformation characteristics needed for dynamic geotechnical earthquake engineering analysis procedures. The test addresses the issue of effects of disturbances to in situ conditions. The automated analysis procedure is intended to be a major improvement over our existing approach for interpreting results from impulse shear tests. We demonstrate the automated analysis procedure by using the procedure to interpret results from impulse shear tests conducted at the National Geotechnical Experimentation Site at the University of Massachusetts in Amherst, Massachusetts. The site consists of soft to stiff silty clays. The automated analysis procedure was found to produce reasonable results and to be highly efficient, allowing the soil characteristics of interest to be inferred in the field. Additionally, the need for judgment in interpreting results from impulse shear tests is eliminated.