2011•Advanced materials researchOpen access

Experimental Study on Shear Strength of Intact Loess at Different Stress Paths

San Qing Su, Bo Tuan Deng, Jun Feng Hou, Zhen Lv

Abstract

The conventional triaxial compression(CTC), triaxial compression(TC) and reduce triaxial compression(RTC) of ordinary loess in Xi，an Ba He was conducted with GDS stress path tests and the strength behavior and deformation capacity of loess was studied. The experimental results showed that the larger the initial moisture content, the smaller the shear strength. The strength characteristic of loess varied under different stress path. Relationships between σ and ε was strain hardening model. The peak strength of CTC is larger than that of TC and the peak strength of RTC was smaller.

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Key concepts: Loess, Geotechnical engineering, Stress path, Materials science, Hardening (computing), Triaxial shear test, Compressive strength, Shear strength (soil)