| 基于余力矩的边坡临界滑动场方法及应用 |
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| 引用本文： | 李亮,董彦飞,宁娜娜,李猛,李雪梅. 基于余力矩的边坡临界滑动场方法及应用[J]. 青岛理工大学学报, 2011, 32(1): 1-7 |
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| 作者姓名： | 李亮 董彦飞 宁娜娜 李猛 李雪梅 |
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| 作者单位： | 青岛理工大学,土木工程学院,青岛,266033 |
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| 基金项目： | 国家自然科学基金，山东省高等学校科技计划资助项目，教育部高等学校博士学科点专项科研基金 |
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| 摘 要： | 基于常规极限平衡条分法的瑞典法、Bishop法以及不平衡推力传递法的条间力假定,将圆弧滑动面整体的滑动力矩与抗滑力矩之差定义为余力矩,在给定的安全系数下,利用简单有效的和声搜索算法寻求余力矩最大的滑动面作为给定安全系数下的危险滑动面,变化安全系数直至找到的危险滑动面的余力矩为零,该危险滑动面即为边坡的临界滑动面;鉴于取矩中心对计算结果的影响,对于非圆弧滑动面,采用滑面滑出端的余力替代余力矩作为控制指标,采用与圆弧滑动面下类似的寻找步骤即可得到非圆弧滑动面下的临界滑动面.通过两个典型土坡的算例分析证明了本文方法的可行性.
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| 关 键 词： | 边坡稳定 极限平衡法 临界滑动场方法 Bishop法 不平衡推力传递法 |
The Critical Slip Field Method with Residual Moment and Its Application |
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| LI Liang,DONG Yan-fei,NING Na-na,LI Meng,LI Xue-mei. The Critical Slip Field Method with Residual Moment and Its Application[J]. Journal of Qingdao Technological University, 2011, 32(1): 1-7 |
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| Authors: | LI Liang DONG Yan-fei NING Na-na LI Meng LI Xue-mei |
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| Affiliation: | LI Liang,DONG Yan-fei,NING Na-na,LI Meng,LI Xue-mei(School of Civil Engineering,Qingdao Technological University,Qingdao 266033,China) |
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| Abstract: | The assumptions regarding inter-slice forces used in the common limit equilibrium methods of slice such as Sweden method,Bishop method and unbalanced thrust force transferring method are adopted to determine the sliding moment and anti-sliding moment for a given circular slip surface.The residual moment is defined as the difference between the sliding moment and the anti-sliding moment.The simple harmony search algorithm is used to locate the dangerous slip surface which has maximum residual moment under a ... |
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| Keywords: | lope stability limit equilibrium method critical slip field method Bishop method unbalanced thrust force transferring method |
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