| 路基非饱和土水分运移及其对边坡稳定性的影响 |
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| 引用本文： | 李守德,王保田,许永振,周阜军.路基非饱和土水分运移及其对边坡稳定性的影响[J].中南公路工程,2005,30(4):53-56,73. |
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| 作者姓名： | 李守德 王保田 许永振 周阜军 |
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| 作者单位： | [1]河海大学岩土工程研究所,江苏南京210098 [2]江苏省邳州市水利局,江苏邳州221300 [3]江苏省盐城市水建公司,江苏盐城224002 |
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| 基金项目： | 河海大学创新基金资助项目（2003403043） |
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| 摘 要： | 讨论了边坡土体在入渗、蒸发条件下的边界条件表达形式，使用了基于有限单元的土坡稳定分析方法以考虑土坡吸力及含水率变化的影响，并推导了安全系数计算式。选取填方路基作为典型算例，研究了入渗、蒸发交替等作用条件下非饱和土坡吸力变化规律，探讨了水分运移对土坡稳定性的影响规律。
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| 关 键 词： | 路基 非饱和土渗流 边坡稳定 有限单元 |
| 文章编号： | 1002-1205（2005）04-0053-05 |
| 收稿时间： | 2005-07-11 |
| 修稿时间： | 2005-07-11 |
Study on Water Transportation and Stability Variation of Roadbed Unsaturated Slope |
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| LI Shoude , WANG Baotian , XU Yongzhen, ZHOU Fujun.Study on Water Transportation and Stability Variation of Roadbed Unsaturated Slope[J].Central South Highway Engineering,2005,30(4):53-56,73. |
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| Authors: | LI Shoude WANG Baotian XU Yongzhen ZHOU Fujun |
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| Institution: | 1.Geotechnical Institute of Hohai University, Nanjing, Jiangsu 210098, China; 2. Hydraulic Beuro of Pizhou, Pizhou, Jiangsu 221300, China; 3. Yancheng Hydraulic Eengineering Co., Yancheng, Jiangsu 224002, China |
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| Abstract: | The boundary condition expressions of rainfall infiltration and evaporation condition simula tion are presented. With the finite element method soil suction and water content variation can be taken into account in the slope stability analysis. Calculations of a changes in a big range while soil water state altered. example of filled roadbed show that the slope stability. |
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| Keywords: | unsaturated seepage slope stability finite element |
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