| 灵湖金矿巷道围岩变形破坏及锚杆支护数值模拟分析 |
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| 引用本文： | 魏恺泓,裴向军,母剑桥,魏佳. 灵湖金矿巷道围岩变形破坏及锚杆支护数值模拟分析[J]. 煤炭技术, 2014, 0(8): 84-87 |
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| 作者姓名： | 魏恺泓 裴向军 母剑桥 魏佳 |
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| 作者单位： | 成都理工大学地质灾害防治与地质环境保护国家重点实验室;成都理工大学地学与核技术重点实验室 |
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| 摘 要： | 通过现场地质调查和监测,确立灵湖金矿330工程450巷道围岩体地质模型,查明硐室在受低地应力状态下的围岩等级,巷道围岩变形破坏程度及松动圈范围。针对硐顶掉(落)石块典型破坏类型,采用离散元UDEC软件进行数值模拟分析,反演硐室开挖后应力重分布,顶板产生拉应力区,导致围岩体发生变形破坏的过程和力学机制,并采取预应力锚杆支护措施稳固失稳岩体。
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| 关 键 词： | 围岩 破坏 数值模拟 锚杆支护 |
Discrete Element Numerical Simulation of Tunnel Surrounding Rock Deformation Failure and Anchor Bolt Support in Linghu Gold Mine |
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| WEI Kai-hong;PEI Xiang-jun;MU Jian-qiao;WEI Jia. Discrete Element Numerical Simulation of Tunnel Surrounding Rock Deformation Failure and Anchor Bolt Support in Linghu Gold Mine[J]. Coal Technology, 2014, 0(8): 84-87 |
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| Authors: | WEI Kai-hong PEI Xiang-jun MU Jian-qiao WEI Jia |
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| Affiliation: | WEI Kai-hong;PEI Xiang-jun;MU Jian-qiao;WEI Jia;State Key Laboratory of Geohazard Prevention and Geoenvironment Protection,Chengdu University of Technology;Key Laboratory of Applied Nuclear Techniques in Geosciences,Chengdu University of Technology; |
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| Abstract: | Through on geological survey and monitoring,establishing the geological model of 330 project 450 roadway in Linghu gold mine,and finding out the level,the deformation damage and the loose circle of surrounding rock in the low ground stress.Discrete element UDEC software is used to analyze the typical damage types of gravity fall,inverting the stress redistribution after the excavation,the roof of tensile stress area,the deformation and the breaking of surrounding rock damage as a result of the process and mechanical mechanism.At last,taking measures of prestressed anchor bolt is to secure the failure rocks. |
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| Keywords: | surrounding rockmass failure numerical simulation bolt support |
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