| 确定岩土边坡潜在破裂面的组合优化法 |
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| 引用本文： | 冯紫良,冯时恩.确定岩土边坡潜在破裂面的组合优化法[J].同济大学学报(自然科学版),2004,32(5):561-564. |
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| 作者姓名： | 冯紫良 冯时恩 |
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| 作者单位： | 同济大学,地下建筑与工程系,上海,200092 |
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| 基金项目： | 上海市重点学科建设资助项目 |
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| 摘 要： | 提出了一种可用于复杂应力状态下土坡稳定分析的新方法 .该法利用可靠度理论建立判断土体破裂线的准则 ,将有限元网格中的单元和节点作为组合优化的对象 ,结合Dijkstra最短路径算法确定土坡中最危险的潜在破裂面 .较详细地叙述了这种基于有限元分析技术和组合优化法来确定土坡中最危险的潜在破裂面的原理和实施过程 ,并给出了计算实例 .最后对这种方法作出了讨论 .
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| 关 键 词： | 边坡稳定 破裂面 优化 最短路径 有限元 |
| 文章编号： | 0253-374X(2004)05-0561-04 |
Locating Slip Surface in Slope Analysis by Combinatorial Optimization |
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| FENG Zi-liang,FENG Shi-en.Locating Slip Surface in Slope Analysis by Combinatorial Optimization[J].Journal of Tongji University(Natural Science),2004,32(5):561-564. |
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| Authors: | FENG Zi-liang FENG Shi-en |
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| Abstract: | A novel method of analyzing slope stability in complex stress environment is proposed.The principle of determining the crack surface in the slope is based on the reliability theory and the combinatorial optimization is adopted for search strategy of the slip surface.Nodes and meshes of the finite element analysis are also regarded as objects of the combinatorial optimization,while the most dangerous slip line in slope is located by Dijkstra's algorithm.The implementation of the procedure is then explained by some examples in detail.Some points of view are finally discussed. |
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| Keywords: | slope stability crack surface optimization shortest route finite element method |
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