| 非饱和粉土的力学和水力特性试验 |
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| 引用本文： | 孙德安,仰先才. 非饱和粉土的力学和水力特性试验[J]. 上海大学学报(自然科学版), 2012, 18(6): 627-633. DOI: 10.3969/j.issn.1007-2861.2012.06.015 |
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| 作者姓名： | 孙德安 仰先才 |
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| 作者单位： | 上海大学 土木工程系，上海 200072 |
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| 基金项目： | 国家自然科学基金资助项目(10972130);教育部博士点基金资助项目(20093108110017) |
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| 摘 要： | By using a triaxial testing apparatus for unsaturated soils, the stress-strain relation and water drainage or absorption during shear were obtained from a series of triaxial tests on unsaturated compacted silt under suction control. By changing the specimen density, triaxial shear tests on unsaturated compacted specimens with different initial void ratios were performed to determine the critical void ratio for indentifying positive or negative dilatancy. By changing the applied suction, triaxial shear tests on compacted specimens at different suctions were performed to determine the critical suction for indentifying water drainage or absorption during shear. Finally, by changing the confining pressure, the stress-strain relation and water drainage or absorption were obtained from the results of triaxial shear tests at different net confining pressures, with the change in water content being almost the same during shear
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| 关 键 词： | 非饱和土 粉土 剪胀性 三轴试验 吸力控制 |
| 收稿时间： | 2011-10-23 |
Experimental Study on Hydro-Mechanical Behavior of Unsaturated Silt |
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| SUN De-an,YANG Xian-cai. Experimental Study on Hydro-Mechanical Behavior of Unsaturated Silt[J]. Journal of Shanghai University(Natural Science), 2012, 18(6): 627-633. DOI: 10.3969/j.issn.1007-2861.2012.06.015 |
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| Authors: | SUN De-an YANG Xian-cai |
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| Affiliation: | Department of Civil Engineering, Shanghai University, Shanghai 200072, China |
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| Abstract: | |
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| Keywords: | unsaturated soil dilatancy silt suction control triaxial test |
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