Abstract
The water content of unsaturated soil does not always correspond to its suction, which results in the extream hysteresis loop of water characteristic curve. In this paper the influence of different water distribution on the compression behavior of unsaturated soil is examined. On this account, the influence on intergranular forces are examined based on a particle model, and added consideration are given to the effect of suction stress. The isotropic compression tests on spacimens of differnt water distribution under constant suctions were carried out, and the difference of volume change behavior and water content behavior between each spacimen were made clear.
