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Passive Earth Pressure - The Absi Theory

Passive earth pressure follows from the following formula:

where:

Kp

-

coefficient of passive earth pressure

c

-

cohesion of soil

σz

-

vertical normal total stress

The program takes values of the coefficient Kp from a database, built upon the tabulated values published in the book: Kérisel, Absi: Active and passive earth Pressure Tables, 3rd Ed. A.A. Balkema, 1990 ISBN 90 6191886 3.

The vertical σpv and horizontal σph components of passive earth pressureare given by:

where:

δ

-

angle of friction between structure and soil

α

-

back face inclination of the structure

Literature:

Kérisel, Absi: Active and Passive Earth Pressure Tables, 3rd ed., Balkema, 1990 ISBN 90 6191886 3.