| 人工边坡破裂面的最短路径搜索方法及其应用 |
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| 引用本文： | 张雷,刘学,姚海明. 人工边坡破裂面的最短路径搜索方法及其应用[J]. 地球与环境, 2005, 33(3): 117-120 |
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| 作者姓名： | 张雷 刘学 姚海明 |
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| 作者单位： | 同济大学岩土工程重点实验室,上海,200092;上海城市管理职业技术学院,上海,200432;上海第二市政工程有限公司,上海,200065 |
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| 摘 要： | 文章运用Dijkstra最短路径算法确定土体中最危险的潜在破裂面,通过弹塑性有限元模拟基坑开挖过程, 计算土体的位移和应力以及评价基坑的稳定性。文中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,进行了相应的讨论。
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| 关 键 词： | 基坑 破裂面 最短路径 有限元 |
| 文章编号： | 1672-9250（2005）03-0117-04 |
| 收稿时间： | 2005-05-23 |
| 修稿时间： | 2005-08-08 |
THE SHORTEST ROUTE SEARCH METHOD AND ITS APPLICATION IN SEARCH OF A FRACTURE PLANE OF ARTIFICIAL SLOPE |
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| ZHANG Lei,LIU Xue,YAO Hai-ming. THE SHORTEST ROUTE SEARCH METHOD AND ITS APPLICATION IN SEARCH OF A FRACTURE PLANE OF ARTIFICIAL SLOPE[J]. Earth and Environment, 2005, 33(3): 117-120 |
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| Authors: | ZHANG Lei LIU Xue YAO Hai-ming |
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| Affiliation: | 1. Underground Department of Tongji University, Shanghai 200092, China; 2. Management and Technological Institute of Shanghai, Shanghai 200432, China; 3. Shanghai Second Municipal Engineering Co. , Ltd. , Shanghai 200065, China |
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| Abstract: | This paper applies the Dijkstra shortest route algorithm in search of the most dangerous underlying fracture plane and works out its displacement and stress to evaluate the reliability of a foundation pit via simulating the course of foundation pit excavation by using the elastic-plastic finite element method. In this paper, the principle and operation course of identifying the most dangerous underlying fracture plane based on finite element analysis and cocabined optimization are described in detail, and examples of calculation and relevant discussions are presented in the paper. |
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| Keywords: | foundation pit fracture plane shortest route finite element method |
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