Development of a Stress/Suction-Controlled True Triaxial Testing Device for Unsaturated Soils

摘要

A servo-controlled, true triaxial(cubical)testing ap- paratus has been modified to test 10-cm cubical specimens of un- saturated soil under suction-controlled conditions and for a wide range of stress paths. The equipment is a mixed-boundary type of device, with the specimen seated on top of a saturated high-air-en- try disk and between five flexible membranes on the remaining sides of the cube.