MAIN FACTORS GOVERNING RESIDUAL EFFECTIVE STRESS OF SATURATED CLAY

Abstract

Residual effective stress (σ_r) was measured for various soils, which were recovered from various sites in the world. As a result, it turns out that measured σ_r is considerably different among those sampled specimens.
Behavior of negative pore water pressure (u_w) is found to be dependent on c_v. Soils with large value of c_v, can't retain their suction for long time, while the soils with low c_v can retain u_w for relatively longer time. It has been found that σ_r of samples obtained from different areas are influenced by their depositional environments.