- 责任者：Ran Longzhou (School of Earth Sciences and Engineering ; Nanjing University ; Nanjing 210093 ; China) ; Song Xiangdong
- 刊名：Journal of Engineering Geology
- 出版年：2011
- 卷期：19(4)
- 关键词：膨胀土 ; expansive soil ; 土力学 ; soil mechanics
- 页码：p.620-625
- 图表：5 illus., 2 tables, 26 refs.
- 分类号：1702
- 出版序号：1345
- issnNo：ISSN1004-9665
- isbnNo：CN11-3249/P
In this paper, Romainville expansive soil was used and several groups of initially saturated slurry specimens were prepared. In addition, vapor equilibrium technique was applied to control the soil suction during drying, and the effect of suction on tensile strength was also studied. The results indicate that, during drying, the specimen tensile strength generally increases exponentially with decreasing water content. With increasing suction, the specimen water content decreases exponentially as expected, and the tensile strength increases linearly. It is found that the evolution behaviour of soil tensile strength during drying is mainly connected with pore water properties, water-soil interactions, contact behvior between soil particles and soil structure.