Study of Mechanical Properties of Saline Soils under Different Stress Paths

The stress path is a critical factor affecting the mechanical properties of saline soils. In order to study soils under different paths, in situ Qian’an area western Jilin province were selected for this study, and triaxial shear tests six paths conducted, including consolidated undrained test conventional isobaric consolidation condition; drained conventional, equal p, reduced increased p K0 condition. effects conditions, drainage on investigated. results reveal that stress–strain relationship curves soil samples decrease continuously decreased they all show characteristics strain hardening. have same slope path. For confining pressures, only relative positions are different. Under path, 1; 1/3; 3; curve −1. pressure, magnitude relationships strength as follows: > p. cohesion c internal friction angle φ, condition has greater effect smaller φ; larger both φ.