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Title:

The Fully Softened Shear Strength of High Plasticity Clays
Cover of The Fully Softened Shear Strength of High Plasticity Clays

Accession Number:

01055770

Record Type:

Monograph

Availability:

National Technical Information Service

5301 Shawnee Road
Alexandria, VA 22312 USA

Abstract:

Previous research has shown that cyclic wetting and drying can reduce the shear strength of compacted highly plastic clays to the fully softened shear strength. Consolidated-undrained triaxial testing procedures were used to determine the fully softened shear strength of Eagle Ford Shale, which is a highly plastic clay found in central Texas. The measured secant friction angles of Eagle Ford Shale were also compared to a graphical relationship and an equation for computing the fully softened secant friction angle to verify the applicability of these correlations for the purpose of selecting strengths for design. Slope stability analyses were also performed to determine the pore water pressures and shear strength conditions that existed at the time of failure in the slope where the Eagle Ford Shale was obtained.

Report Numbers:

FHWA/TX-07/0-5202-3
Report No. 0-52-2-3

Contract Numbers:

0-5202

Language:

English

Corporate Authors:

University of Texas, Austin

Center for Transportation Research, 3208 Red River Street
Austin, TX 78705 USA

Texas Department of Transportation

Research and Technology Implementation Office, P.O. Box 5080
Austin, TX 78763-5080 USA

Federal Highway Administration

1200 New Jersey Avenue, SE
Washington, DC 20590 USA

Authors:

Wright, Stephen G
Zornberg, Jorge G
Aguettant, Jennifer E

Pagination:

132p

Publication Date:

2007-2

Edition:

Technical Report

Period Covered:

9/1/04-8/31/06

Media Type:

Web

Features:

Appendices (4) ; Figures; Photos; References; Tables

Uncontrolled Terms:

Subject Areas:

Geotechnology; Highways; I42: Soil Mechanics

Files:

TRIS, USDOT, STATEDOT

Created Date:

Aug 27 2007 8:53AM