DEFORMATION AND STRENGTH PROPERTIES OF PEAT. PROCEEDINGS OF THE ELEVENTH INTERNATIONAL CONFERENCE ON SOIL MECHANICS AND FOUNDATION ENGINEERING, SAN FRANCISCO, 12-16 AUGUST 1985

Both vertical and horizontal samples of undisturbed fibrous peat, which were obtained by maintaining the axes of thin-wall tubes parallel to the vertical and horizontal directions in the peat ground, were used. These samples contained more than 55% of organic matter. A series of the undrained triaxial compression and extension tests with pore water pressure measurement were performed on the isotropically normally and over-consolidated specimens, and the influence of fabric anisotropy on the undrained shear properties of peat was investigated. Moreover, based on the test results, the authors proposed a method of predicting stress-strain-strength relationships of peat under triaxial compression and extension conditions. For the covering abstract of the conference see IRRD 287689. (TRRL)