ABSTRACT
The strength is an important mechanical properties for loess, involving many engineering problems which associated with the loess stability, such as foundation bearing capacity, slope stability. Many scholars have completed a lot of research work for the strength of the loess. Wang Shuo et al[1] think that the cohesion of unsaturated remolded loess will increase with the increment of dry density due to the influence of reciprocity of particles and tension action of inter-granular water. Internal friction angle of unsaturated remolded loess get a little increasing with the increment of dry density, approximately showing linear variation. Wang Hui et al[2] think that the intact loess microstructure is destroyed after disturbance and remodeling, and dry density changes have a significant impact on penetration coefficient, which tend to decrease while the dry density increases. The studies showed that: the stress-strain is influenced by boundary conditions such as stress path. The different conditions have distinct effect. However, there is rare research for the affect of dry density to strength characteristic of loess[3]–[10].
