| 长江三峡库区兴山县新址古夫地区膨胀土研究 |
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| 引用本文： | 胡雁. 长江三峡库区兴山县新址古夫地区膨胀土研究[J]. 水文地质工程地质, 2002, (5): 22-25. doi: 10.3969/j.issn.1000-3665.2002.05.007 |
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| 作者姓名： | 胡雁 |
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| 作者单位： | 武汉理工大学理学院,武汉,430071;; 武汉理工大学 |
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| 摘 要： | 三峡库区兴山县搬迁新址古夫地区约有1km2 的膨胀土分布. 本文研究了膨胀土的分布规律、成因类型、矿物化学成分、物理力学性质、胀缩特性,特别是利用原位旁压试验对膨胀土浸水前后的强度变化进行了探讨和分析,该区膨胀土为奥陶系灰岩风化残积物经短距离搬运而成,主要粘土矿物为水云母,为中等膨胀性粘土,天然强度大小与土的类型有关,浸水前后强度变化不大.
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| 关 键 词： | 膨胀土 胀缩特性 物理力学性质 成因 |
| 文章编号： | 1000-3665(2002)05-0022-04 |
| 修稿时间： | 2002-03-04 |
Study on expansive soil at Gufu relocation site in the Three Gorges Reservoir region |
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| Study on expansive soil at Gufu relocation site in the Three Gorges Reservoir region[J]. Hydrogeology & Engineering Geology, 2002, (5): 22-25. doi: 10.3969/j.issn.1000-3665.2002.05.007 |
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| Authors: | HU Yan |
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| Abstract: | There is about 1km 2 expansive soils at Gufu area in the Three Gorges Reservoir region. This paper researches on the distribution laws, genesis, chemical and mineral compositions, physical and mechanical properties, swelling-shrinkage characteristics, especially on the changes of strength before and after soaked by the pressuremeter test in situ. The research indicates that the clays mineral mainly consists of hydroglimmer, and the soil is classified as medium expansion. The natural soil strength relates to genesis, and it changes little before and after soaked. |
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| Keywords: | expansive soil swelling-shrinkage characteristics physical and mechanical properties genesis |
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