会议论文详细信息
2018 International Conference on Civil and Hydraulic Engineering
Strength and Deformation of Unsaturated Compacted Clay under Wetting-Drying Cycles
土木建筑工程;水利工程
Hu, Zhi^1 ; Peng, Kai^1 ; Lu, Zheng^2 ; Xiao, Henglin^1 ; Li, Lihua^1
School of Civil Engineering Architecture and Environment, Hubei University of Technology, Wuhan, Hubei
430068, China^1
State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan, Hubei
430071, China^2
关键词: Compacted clays;    Confined compressive strengths;    Cyclic wetting;    Dry condition;    Number of cycles;    Unsaturated compacted clays;    Wet conditions;    Wetting drying cycles;   
Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/189/3/032054/pdf
DOI  :  10.1088/1755-1315/189/3/032054
学科分类:土木及结构工程学
来源: IOP
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【 摘 要 】

Strength and deformation of unsaturated compacted clay under wetting-drying cycles considering different amplitudes and numbers have been studied in the present study. A non-suction controlled method was applied to carry out cyclic wetting-drying on the compacted clay, and the effect of wetting-drying cycles on confined compressive strength peak and deformation of specimens have been investigated. The results show that wetting-drying cycles can reduce the strength of compacted clay, and after 4-5 times of cycle the strength tends to be stable. The height and volume of compacted clay increase as the number of cycle increases. It can be indicated that under wet condition the influence of amplitude of wetting- drying cycle on the deformation is greater than that under dry condition.

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