SYMPOSIA PAPER Published: 01 January 1991

Shearing Characteristic of Composite Ground and Its Application to Stability Analysis


Shearing characteristics of composite ground, that is clayey soft ground improved by stone or sand columns, are studied. Triaxial compression tests and simple shear tests on composite ground elements are carried out. The result suggests that sand and clay fail individually when the element fails, and that the element has anisotropy of shear strength parameters. Stabilities of embankments on several composite grounds are analyzed by the proposed method in which anisotropy of shear strength parameters is Introduced. The result shows that the proposed method gives lower safety factor than the conventional method.

Author Information

Enoki, M
Yagi, N
Yatabe, R
Ichimoto, E
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Developed by Committee: D18
Pages: 19–31
DOI: 10.1520/STP25048S
ISBN-EB: 978-0-8031-5161-1
ISBN-13: 978-0-8031-1392-3