American Society of Civil Engineers


Lateral Pressure in a Stiff Clay


by H. Schulz, (Bundesanstalt fuer Wasserbau, Karlsruhe, West Germany) and Raj P. Khera, (Bundesanstalt fuer Wasserbau, Karlsruhe, West Germany)

pp. 44-59

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Document type: Conference Proceeding Paper
Part of: Geotechnical Aspects of Stiff and Hard Clays
Abstract: A series of consolidated undrained and drained triaxial tests and oedometer tests were performed on horizontal and vertical specimens taken from an overconsolidated cretaceous clay. An equivalent stress was defined and used for normalizing the test data. A regression analysis of the data points indicated that the relationship between undrained strength and plasticity index, developed by A. W. Skemtpon, was applicable to this soil if the concept of equivalent stress was used. From critical state soil mechanics, a method for determining earth pressure at-rest was developed. A comparison between the measured values of the lateral pressure using pressuremeter and the predicted values showed a reasonable agreement.


ASCE Subject Headings:
Lateral pressure
Triaxial tests
Overconsolidated soils
Earth pressure

Author Keywords:
CLAY
PRESSURE MEASUREMENT - SOIL MECHANICS - SOILS - Testing
CRITICAL STATE SOIL MECHANICS - EARTH PRESSURE AT-REST - LATERAL PRESSURE - PLASTICITY INDEX - STIFF CLAY - UNDRAINED STRENGTH