| 地震力对边坡可靠度的影响 |
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| 引用本文： | 朱磊,高欣悦,万愉快,丁一民.地震力对边坡可靠度的影响[J].科学技术与工程,2023,23(10):4324-4330. |
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| 作者姓名： | 朱磊 高欣悦 万愉快 丁一民 |
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| 作者单位： | 宁夏大学土木与水利工程学院 |
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| 基金项目： | 国家自然科学基金项目（51879134），宁夏回族自然科学基金（2020BEB04004,2021AAC03074），宁夏高等学校一流学科建设（水利工程）资助项目（NXYLXK2021A03） |
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| 摘 要： | 地震动作用是影响边坡可靠度分析的重要因素。利用Karhunen-Loève(K-L)展开方法生成土体黏聚力的随机场，采用简化Bishop法计算不同地震力作用下的边坡安全系数，通过Monte Carlo模拟计算地震动作用下边坡的失效概率，分析地震力对边坡稳定性的影响规律。研究结果表明：地震力对边坡稳定性有很大影响。随着水平拟静力系数Kh增大，安全系数Fs逐渐减小，失效概率PF逐渐增大；地震动作用下，边坡的失效概率随黏聚力变异系数和相关长度的增大而增大。
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| 关 键 词： | 地震力 稳定性分析 安全系数 失效概率 |
| 收稿时间： | 2022/7/1 0:00:00 |
| 修稿时间： | 2023/1/14 0:00:00 |
Effect of seismic force on slope reliability |
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| Zhu Lei,Gao Xinyue,Wan Yukuai,Ding Yimin.Effect of seismic force on slope reliability[J].Science Technology and Engineering,2023,23(10):4324-4330. |
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| Authors: | Zhu Lei Gao Xinyue Wan Yukuai Ding Yimin |
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| Abstract: | Seismic is an important factor affecting the reliability analysis of slopes. In this paper, the Karhunen-Loève (K-L) method is used to generate the random field.The simplified Bishop method is used to calculate the slope safety factor under the action of different levels of seismic force.The failure probability is calculated by the Monte Carlo method .In order to analyze the influence of seismic force on slope stability. The results show that seismic force has a great influence on slope stability. As the Horizontal quasi-static coefficient Kh increases, the safety factor Fs gradually decreases, and the probability of failure PF gradually increases. Under the action of seismic vibration, the failure probability of the slope increases with the increase of the coefficient of variation of the correlated length. |
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| Keywords: | seismic force stability analysis safety factor failure probability |
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