Shear Strength Test of the Unsaturated Frozen Clay Under Freeze-Thaw Cycles
详细信息
- 责任者：Xu Qiang (State Key Laboratory of Geohazard Prevention and Geological Environment Protection ; Chengdu University of Technology ; Chengdu 610069 ; China) ; Wu Lizhou
- 刊名：Journal of Chengdu University of Technology
- 出版年：2011
- 卷期：38(3)
- 关键词：融冻作用 ; cryoturbation ; 非饱和土 ; unsaturated soil
- 页码：p.334-338
- 图表：8 illus., 1 table, 7 refs.
- 分类号：1702
- issnNo：ISSN1671-9727
- isbnNo：CN51-1634/N
摘要
The strength experiments of the Hunan clay under different freeze-thaw cycles were carried out in the laboratory. The strength characteristics experiencing freeze-thaw cycles were analyzed. Influence of moisture on frozen soil strength and displacement was concerned. The results show that higher water content means larger strength for the frozen or thawed clays. Freeze-thaw cycles have an effect on strength changes. The results indicate that strain hardening mostly occurs for stress-displacement curves of frozen or thawed clays with different moistures.