Experimental study on shrinkage properties of expansive soils

被引：0
作者：
Wang, Xian-En [1 ]
Tan, Xiao-Hui [1 ]
Xin, Zhi-Yu [1 ]
Xu, Quan [1 ]
Xie, Yan [1 ]
机构：
[1] School of Resources and Environmental Engineering, Hefei University of Technology, Hefei
来源：
Yantu Gongcheng Xuebao/Chinese Journal of Geotechnical Engineering | 2015年 / 37卷
关键词：
Curve fitting; Dry density; Expansive soil; Shrinkage; Shrinkage limit;
D O I：
10.11779/CJGE2015S2022
中图分类号：
学科分类号：
摘要：
To study the shrinkage properties of expansive soils, recjarding expansive soils in Hefei as the study object, shrinkage tests on saturated soil samples with different initial dry densities are carried out. The relationship between the linear shrinkage ratio and water content (δ-w) and the relationship between void ratio and water content (e-w) are studied. Based on the results of curve fitting to shrinkage curves, the shrinkage limit, shrinkage coefficient, maximum linear shrinkage of expansive soils are calculated, and the relationship between fitting parameters and initial dry density is analyzed. The results show that the measurement of quality is simple and accurate, but it has some errors to volume in shrinkage tests. The shrinkage limit obtained by using the void ratio and water content curve-fitting method is compared with that obtained by the linear shrinkage ratio and water content curve fitting-method, and they are similar. Combining the shrinkage and suction test results, the soil-water characteristic curve expressed by the volumetric water content and considering the volume change is obtained. ©, 2015, Yantu Gongcheng Xuebao/Chinese Journal of Geotechnical Engineering. All right reserved.
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页码：107 / 114
页数：7
相关论文
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