| 基于改进一次二阶矩法的赵家坡高切坡稳定性分析 |
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| 引用本文： | 王洪兴,王 冠,唐辉明. 基于改进一次二阶矩法的赵家坡高切坡稳定性分析[J]. 岩土力学, 2006, 27(Z1): 725-728 |
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| 作者姓名： | 王洪兴 王 冠 唐辉明 |
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| 作者单位： | 1. 中国地质大学(武汉) 工程学院；2. 中国地质大学(武汉) 计算机学院，武汉 430074 |
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| 摘 要： | 为了更客观和科学地评价斜坡的稳定性，采用结构可靠度中的改进一次二阶矩法来分析斜坡的稳定性，同时采用新的、更适于计算机编程的求可靠指标解的迭代方法，对三峡库区赵家坡高切坡第二段稳定性分析标明：（1）潜在滑动面1可靠指标和破坏概率均满足允许风险水平，稳定性程度较高，只需进行表面防护即可；（2）潜在滑动面2可靠指标和破坏概率均不满足允许风险水平，需要进行整体加固并辅以坡面防护；（3）稳定性系数与可靠度分析结果有良好的一致性。
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| 关 键 词： | 一次二阶矩法 高切坡 稳定性 可靠度 可靠指标 破坏概率 |
| 收稿时间： | 2006-04-28 |
Stability analysis of Zhaojiapo High Cut Slope based on improved first-order quadric moment method |
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| WANG Hong-xing,WANG Guan,TANG Hui-ming. Stability analysis of Zhaojiapo High Cut Slope based on improved first-order quadric moment method[J]. Rock and Soil Mechanics, 2006, 27(Z1): 725-728 |
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| Authors: | WANG Hong-xing WANG Guan TANG Hui-ming |
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| Affiliation: | 1.Engineering Faculty, China University of Geosciences, Wuhan 430074, China;2. Faculty of Computer, China University of Geosciences, Wuhan 430074, China |
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| Abstract: | An improved first-order quadric moment method is used to analyze the stability of slope; and a new calculation method suitable to programming for computer is used to solve reliability index. And then the methods are used to analyze the reliability of stability of Zhaojiapo High Cut Slope in Three Gorges area. The analytical results show that the reliability index and failure probability in the first potential sliding plane can satisfy permissible risk level, that shows, it is stable; the reliability index and failure probability in the second potential sliding plane can not satisfy permissible risk level, thus it should be strengthened; and the stability factor has a good consistence with the results of reliability analysis. |
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| Keywords: | improved first-order quadric moment method high cut slope stability reliability reliability index failure probability |
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