| 非饱和膨胀土边坡稳定性分析 |
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| 引用本文： | 黄润秋,吴礼舟.非饱和膨胀土边坡稳定性分析[J].地学前缘,2007,14(6):129-133. |
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| 作者姓名： | 黄润秋 吴礼舟 |
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| 作者单位： | 成都理工大学,地质灾害防治与地质环境保护国家重点实验室,四川,成都,610059 |
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| 摘 要： | Bishop和Fredlund的非饱和土强度公式参数不易工程应用,文中基于双曲线的非饱和土强度公式,采用简化Bishop法建立非饱和土边坡的稳定方程,分析膨胀土边坡的稳定性,讨论了吸力、分层及其边坡表层裂隙对非饱和膨胀土边坡稳定性的影响。通过分析与比较,揭示了膨胀土边坡浅层滑坡的原因。
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| 关 键 词： | 膨胀土边坡 非饱和土 稳定性 强度 |
| 文章编号： | 1005-2321（2007）06-0129-05 |
| 收稿时间： | 2007-05-28 |
| 修稿时间： | 2007-07-06 |
Stability analysis of unsaturated expansive soil slope |
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| Huang Runqiu,Wu Lizhou.Stability analysis of unsaturated expansive soil slope[J].Earth Science Frontiers,2007,14(6):129-133. |
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| Authors: | Huang Runqiu Wu Lizhou |
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| Abstract: | To overcome the difficulty of directly applying the shear strength equation for unsaturated soil to practical engineering, we used the simplified shear strength equation in conjunction with double-curve fitting methods to analyse the stability of unsaturated expansive soil slope, and to evaluate the effect of matrix suction, stratification and cracks on the stability of unsaturated expansive soil slope. The results of analysis and comparison help us better understand the reasons of landslides in the upper layers of expansive soil slope. |
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| Keywords: | expansive soil slope unsaturated soil stability strength |
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