Location

St. Louis, Missouri

Session Start Date

3-11-1991

Session End Date

3-15-1991

Abstract

Measurements of shear wave velocities, Vs, during triaxial compression tests were conducted on undisturbed samples obtained from a diluvial gravel deposit. The reconstituted gravel samples were also tested to compare the characteristics of shear wave velocity. The results of these measurements indicated that Vs increases at the initial stage of the triaxial compression tests, and decreases gradually until the failure of specimen and that the reduction in Vs was more noticeable for the undisturbed samples than for the reconstituted samples. The results also revealed a unique relationship between Vs when evaluating the effect of stress ratio and confining pressure for both undisturbed and reconstituted samples at failure. Index of shear wave velocity is introduced to express uniquely the change of Vs in both undisturbed samples and reconstituted samples during triaxial compression tests.

Department(s)

Civil, Architectural and Environmental Engineering

Appears In

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

Meeting Name

Second Conference

Publisher

University of Missouri--Rolla

Publication Date

3-11-1991

Document Version

Final Version

Rights

© 1991 University of Missouri--Rolla, All rights reserved.

Document Type

Article - Conference proceedings

File Type

text

Language

English

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Index of Shear Wave Velocity in Diluvial Gravel Samples

St. Louis, Missouri

Measurements of shear wave velocities, Vs, during triaxial compression tests were conducted on undisturbed samples obtained from a diluvial gravel deposit. The reconstituted gravel samples were also tested to compare the characteristics of shear wave velocity. The results of these measurements indicated that Vs increases at the initial stage of the triaxial compression tests, and decreases gradually until the failure of specimen and that the reduction in Vs was more noticeable for the undisturbed samples than for the reconstituted samples. The results also revealed a unique relationship between Vs when evaluating the effect of stress ratio and confining pressure for both undisturbed and reconstituted samples at failure. Index of shear wave velocity is introduced to express uniquely the change of Vs in both undisturbed samples and reconstituted samples during triaxial compression tests.