ISSN: 1945-7545
CODEN: GTJODJ
Page Count: 8

A Multistage Triaxial Test for Unsaturated Soils

Ho, DYF
Geotechnical engineer, Fugro (Hong Kong) Ltd., Hong Kong,

Fredlund, DG
Professor, University of Saskatchewan, Saskatoon, Saskatchewan

Abstract

A triaxial testing procedure is presented for measuring the increase in shear strength resulting from soil suction in an unsaturated soil. Necessary modifications on a conventional triaxial cell are described. A simple graphical method is presented to interpret the test data in accordance with the shear strength equation for unsaturated soils.

Keywords:
soil tests, shear strength, triaxial tests, capillary pressures, pore air pressures, pore water pressures, high air entry disc, diffused air, multistage triaxial test

Paper ID: GTJ10795J
DOI: 10.1520/GTJ10795J
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