| 土石围堰边坡安全性研究 |
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| 引用本文： | 叶焰中,李荣,卢晓春.土石围堰边坡安全性研究[J].灾害与防治工程,2008(1). |
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| 作者姓名： | 叶焰中 李荣 卢晓春 |
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| 作者单位： | 三峡大学土木水电学院; |
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| 摘 要： | 结合山西天桥水电站除险加固工程中的土石围堰的边坡,提出了采用安全系数和失效概率来综合评价其安全性。采用工程上常用的瑞典条分法建立极限状态方程,考虑土体内摩擦角、粘聚力为随机变量,利用蒙特卡罗法求解边坡的可靠度指标,并对边坡稳定性分析中最重要的评价指标安全系数与可靠指标的关系进行了探讨。结果表明,采用安全系数和可靠概率综合评价土石围堰边坡的稳定性能更好地了解工程的实际安全状况。该方法为土石围堰边坡的安全性评价提供了一种参考。
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| 关 键 词： | 土石围堰 边坡 安全系数 可靠度 |
Study on Slope Safety of Earth Rockfill Cofferdam |
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| Ye Yanzhong Li Rong Lu Xiaochun.Study on Slope Safety of Earth Rockfill Cofferdam[J].Disaster and Control Engineering,2008(1). |
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| Authors: | Ye Yanzhong Li Rong Lu Xiaochun |
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| Abstract: | In the case of a slope of earth rockfill cofferdam in the Danger-preventing reinforcement project of Tian Qiao power station,the combination of safety factor and reliability is suggested to evaluate the slope safety of earth rockfill cofferdam.The traditional Sweden slice method is used to establish the limit equilibrium state function.Considering the cohesive strength and internal friction angel as random variables,the Monte-Carlo method is used to solve the reliability index.The relation between the safet... |
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| Keywords: | earth-rockfill cofferdam slope safety factor reliability |
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