| 滑坡稳定分析剩余推力法的改进研究 |
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| 引用本文： | 徐青,陈士军,陈胜宏.滑坡稳定分析剩余推力法的改进研究[J].岩土力学,2005,26(3):465-470. |
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| 作者姓名： | 徐青 陈士军 陈胜宏 |
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| 作者单位： | 1.河海大学 环境工程学院，江苏 南京 210098；2. 中国水利水电出版社，北京 100044；3. 武汉大学 水电学院，湖北 武汉 430072 |
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| 基金项目： | 水利部科技创新项目(合同编号:SCX2003-21)。 |
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| 摘 要： | 首先介绍了刚体极限平衡法的基本原理，然后分析了剩余推力法存在的问题，进而提出了一种改进剩余推力法，其基本思想是：在出现屈服的条分面上，改用Sarma法确定条分面之间的作用力，即假定该条分面上的水平推力不变，但剪切力由摩尔-库仑准则确定。最后对改进剩余推力法进行了算例考核，并介绍了三板溪工程应用情况。
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| 关 键 词： | 滑坡稳定分析 极限平衡法 改进剩余推力法 |
| 文章编号： | 1000-7598-(2005)03-0465-06 |
| 收稿时间： | 2004-06-11 |
| 修稿时间： | 2004年6月11日 |
Study on the improved residual thrust method for landslide stability analysis |
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| XU Qing,CHEN Shi-jun,CHEN Sheng-hong.Study on the improved residual thrust method for landslide stability analysis[J].Rock and Soil Mechanics,2005,26(3):465-470. |
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| Authors: | XU Qing CHEN Shi-jun CHEN Sheng-hong |
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| Institution: | 1.College of Environmental Engineering, Hohai University, Nanjing 210098, China;2.China WaterPower Press, Beijing 100044, China; 3. School of Water Resources and Hydropower Engineering, Wuhan University, Wuhan 430072, China |
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| Abstract: | The principle of the limit equilibrium method is discussed firstly; then the shortcoming of the residual thrust method is analyzed; and the improvement is conducted. The basic idea of the improvement is: when the yield occurs at a slice face, the Sarma method will be applied to calculate the action between slices, i.e., the shear force is calculated by the Mohr-Coulomb criterion while the horizontal thrust is unchanged. Finally, the verification of the improved residual thrust method is shown; and the engineering application to Sanbanxi Hydropower Project is illustrated. |
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| Keywords: | landslide stability analysis limit equilibrium method improved residual thrust method |
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