| 有限元强度折减法在加锚边坡设计中的应用 |
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| 引用本文： | 朱宏伟,项琴.有限元强度折减法在加锚边坡设计中的应用[J].大连铁道学院学报,2009(6). |
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| 作者姓名： | 朱宏伟 项琴 |
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| 作者单位： | 四川建筑职业技术学院交通与市政工程系;西南交通大学道路工程系; |
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| 基金项目： | 西部交通建设科技计划资助项目(200431874020) |
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| 摘 要： | 通过引入有限元强度折减法并结合工程实例,分析和比较了有限元强度折减法和极限平衡法在锚索自由段嵌岩深度设计中应用.结果表明:由有限元强度折减法得到的滑面半径和安全系数都比极限平衡法得到的结果大,若以极限平衡法搜索得到的滑面为准进行嵌固深度的设计将会因嵌固深度设计得过短造成锚索的失效,不利于边坡的安全.由于有限元法充分考虑了岩土体的弹塑性特性,得到的结论更贴近于实际,故建议在实际中可采用有限元法来指导锚索自由段嵌固深度的设计.
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| 关 键 词： | 有限元强度折减法 加锚边坡 锚索自由段 嵌固深度 |
Application of Strength Reduction FEM in Anchored Slope |
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| ZHU Hong-wei,XIANG Qin.Application of Strength Reduction FEM in Anchored Slope[J].Journal of Dalian Railway Institute,2009(6). |
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| Authors: | ZHU Hong-wei XIANG Qin |
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| Institution: | ZHU Hong-wei1,2,XIANG Qin1,2 (1.Sichuan College of Architectural Technology Transportation , Municipal Engineering Department,Deyang 618000,China,2.Southwest Jiaotong University Railway Engineering Department,Chengdu 618000,China) |
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| Abstract: | By introducing strength reduction FEM and engineering case,the application of the method of strength reduction FEM and limit equilibrium method in the design of embedment length of free segment of cable is explained and compared.The research result indicates that the radius of sliding surface and safety coefficient obtained by strength reduction FEM are bigger than the results obtained by the limit equilibrium method,if the results obtained by the limit equilibrium method is used to design the embedment len... |
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| Keywords: | strength reduction FEM anchored swlope free segment of cable embedment length |
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