| 拟静力法边坡稳定分析的改进 |
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| 引用本文： | 吕擎峰,殷宗泽,王叔华,姬凤玲.拟静力法边坡稳定分析的改进[J].岩土力学,2005,26(Z1):35-38. |
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| 作者姓名： | 吕擎峰 殷宗泽 王叔华 姬凤玲 |
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| 作者单位： | [1]河海大学岩土研究所 [2]兰州大学资源环境学院 [3]南京210098兰州大学资源环境学院 |
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| 摘 要： | 拟静力法简单适用,在地震边坡稳定分析中发挥了很大作用,积累了较丰富的经验。传统上滑动体都是按竖向条分的。考虑地震惯性力时,竖向条分在计算地震惯性力和抗滑力矩时存在计算上的不合理,从而使地震惯性力与实际值有误差,抗滑力矩偏小。而考虑地基中的地震荷载时,安全系数的计算结果是不确定的,没有一个客观的最小安全系数计算结果。在分析了误差产生的机理后,对拟静力法的计算进行了改进。算例表明,改进后拟静力法计算结果是合理的。
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| 关 键 词： | 拟静力法 边坡稳定分析 条分法 水平地震惯性力 抗滑力矩 |
| 收稿时间： | 2005-01-23 |
Improvement of pseudo-static method for slope stability analysis |
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| LV Qing-feng,YIN Zong-ze,WANG Shu-hua,JI Feng-ling.Improvement of pseudo-static method for slope stability analysis[J].Rock and Soil Mechanics,2005,26(Z1):35-38. |
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| Authors: | LV Qing-feng YIN Zong-ze WANG Shu-hua JI Feng-ling |
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| Institution: | 1. Research Institute of Geotechnical Engineering, Hohai University, Nanjing 210098, China;
2. College of Resources and Environment, Lanzhou Univelsity, Lanzhou 730000, China |
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| Abstract: | Static method of slope stability analysis is simple and play a distinctive role in slope seismic stability. Sliding mass is traditionally divided by vertical slice. Errors should be induced in calculating horizontal seismic inertial force and anti-sliding moment according to vertical slice. Considering horizontal seismic inertial force in foundation, safety factor is uncertain. The cause of errors and uncertain is analyzed, and an improved method is put forward. Calculating sample shows the improved method is reasonable. |
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| Keywords: | pseudo-static method slope stability analysis slice method horizontal seismic inertial force anti-sliding moment |
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