Experimental Study on the Influence of Wetting-Drying Cycle on the Strength Characteristics of Expansive Rock

被引：0
|
作者：
Jia Xiaobing [1 ,2 ]
Zhao Erpng [1 ]
机构：
[1] China Three Gorges Univ, Minist Educ, Key Lab Geol Hazards Gorges Reservoir Area 3, Yichang, Peoples R China
[2] Three Gorges Vocat Coll Elect Power, Yichang, Peoples R China
来源：
PROCEEDINGS OF THE 2017 6TH INTERNATIONAL CONFERENCE ON ENERGY AND ENVIRONMENTAL PROTECTION (ICEEP 2017) | 2017年 / 143卷
关键词：
expansive rock; wetting-drying cycle test; strength characteristics;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
After absorbing water, expansive rock will expand and soften. After losing water, expansive rock will shrink and crack. The season alternates, expansive rock repeatedly expands and shrinks, which has potential hazard to the project. So, in order to study the influence of wetting-drying cycle on the strength characteristics of expansive rock, the in-room cyclic wetting-drying test of expansive rock samples were carried out. The results showed that the cohesion c decreases greatly after the first wetting-drying process, the cohesion c attenuated by 37.1%. In the following wetting-drying processes, the decreasing rate reduced. The friction Angle decreased greatly in the first cycling, fluctuated afterwards, but the total value didn't show a great variation.
引用
收藏
页码：242 / 245
页数：4
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