| 压实膨胀土膨胀特性的试验研究 |
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| 引用本文： | 林青芝,王保田,张福海. 压实膨胀土膨胀特性的试验研究[J]. 土工基础, 2008, 22(6): 73-75 |
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| 作者姓名： | 林青芝 王保田 张福海 |
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| 作者单位： | 河海大学岩土工程科学研究所,南京,210098 |
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| 摘 要： | 研究南水北调东线江苏段沿线压实膨胀土的膨胀变形特性，得到了压实膨胀土的无荷膨胀率与初始含水率之间呈线性关系以及压实膨胀土发生膨胀变形的上限含水率，得到压实膨胀土的有荷膨胀率与上覆荷载之间呈半对数关系。在实际工程中，根据实际含水率与上覆荷载，可预测土体可能发生的膨胀变形量。
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| 关 键 词： | 膨胀率 初始含水率 上覆荷载 |
Experimental Study About Expansion of Compact Expansive Soil |
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| LIN Qing zhi,WANG Bao tian,ZHANG Fu hai. Experimental Study About Expansion of Compact Expansive Soil[J]. Soie Engineering and Foundation, 2008, 22(6): 73-75 |
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| Authors: | LIN Qing zhi WANG Bao tian ZHANG Fu hai |
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| Affiliation: | LIN Qing zhi, WANG Bao tian, ZHANG Fu hal (Geotechnical Research Institute of Hohai University, Nanjing 210098, China) |
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| Abstract: | The characteristic of swelling deformation of compacted expansive soil is studied along the Jiangsu section of East Route of South to North Water Transfer Project. Some conclusions are obtained: there is the linearity relation between swelling ratio and initial water content, the maximum water content which causes expansion of the expansive soil and the semi-log relation between swelling rate and cover pressure. According to these conclusions, both of actual water content and cover pressure are then used to judge the potential expansion in engineering. |
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| Keywords: | swelling ratio initial water content cover pressure. |
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