ABSTRACT
This paper presents and discusses the test results of a compacted unsaturated soil. Constant water content (CW) triaxial compression tests were performed with soil suction measurement. The soil suction behavior during shearing and its influence on stress-strain curves are presented and compared to the behavior of saturated samples tested under consolidated-drained and consolidated-undrained conditions. The influence of both net confining stress and soil suction on the shear strength envelope is also addressed. Although some non-linearity between shear strength and suction could be observed, a planar failure surface could well be adjusted to the experimental data.
