| 基坑锚杆与土钉复合支护的FLAC数值分析 |
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| 引用本文： | 冯永,王琳鸽.基坑锚杆与土钉复合支护的FLAC数值分析[J].西北地震学报,2011,33(1):56-61. |
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| 作者姓名： | 冯永 王琳鸽 |
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| 作者单位： | 1. 河南工业大学土木建筑学院,河南,郑州,450001
2. 河南城建学院土木与材料工程系,河南,平顶山,467036 |
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| 基金项目： | 河南工业大学高层次人才基金 |
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| 摘 要： | 预应力锚杆+土钉复合支护技术在基坑工程中的应用已越来越广泛.本文以郑州市王家寨基坑工程为实例,采用FLAC数值分析法建立了基坑锚杆与土钉复合支护计算模型.对土体选取理想弹塑性本构模型,对预应力锚杆和土钉选取cable单元,同时考虑支护体系与土体之间的相互作用,对基坑的开挖支护的动态过程进行了模拟分析,研究了基坑开挖对土体的扰动、基坑位移变化以及土钉和锚杆的内力分布规律.研究结论对锚杆与土钉复合支护设计具有一定借鉴意义.
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| 关 键 词： | 基坑 锚杆与土钉复合支护 FLAC数值分析 |
Numerical Analysis on the Composite Support Techinque of Prestressed Anchor Arm and Brad by FLAC |
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| FENG?Yong and WANG?Lin-ge.Numerical Analysis on the Composite Support Techinque of Prestressed Anchor Arm and Brad by FLAC[J].Northwestern Seismological Journal,2011,33(1):56-61. |
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| Authors: | FENG?Yong and WANG?Lin-ge |
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| Institution: | FENG Yong1,WANG Lin-ge2 (1.Civil Engineering School of Henan University of Technology,Zhengzhou 450001,China,2.Civil&Material Department of Henan University of Urban Construction,Henan Pingdingshan 467036,China) |
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| Abstract: | The composite support technique of prestressed anchor arm and brad has been more and more widely used in foundation pit excavating.Taking a deep foundation excavation at Wangjiazhai,Zhengzhou city as an example,the computation model for the composite support technique of prestressed anchor arm and brad is established using FLAC numerical analysis method.The dynamic process of foundation excavating and support,considering the mutual effect between the support system and soil mass,is simulated.The destabiliza... |
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| Keywords: | Foundation pit Composite support technique of prestressed anchor arm and brad Flac numerical analysis |
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