| 系统锚杆对地下厂房洞室群稳定性影响的数值分析 |
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| 引用本文： | 周洪福,聂德新,王春山.系统锚杆对地下厂房洞室群稳定性影响的数值分析[J].地质灾害与环境保护,2011,22(3):67-73. |
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| 作者姓名： | 周洪福 聂德新 王春山 |
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| 作者单位： | 1. 成都地质矿产研究所,成都,610081
2. 成都理工大学环境与土木工程学院,成都,610059 |
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| 基金项目： | 国家自然科学基金项目(编号:40372127) |
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| 摘 要： | 以某水电站地下厂房工程为实例,采用数值分析方法,通过对比厂房洞室群是否施加系统锚杆的差别,获得系统锚杆对洞室群稳定性的影响.结果表明,施加系统锚杆对围岩主应力影响小,但能平均降低围岩位移28.07％,降低拱顶和拱角处围岩位移34％以上,降低主厂房和尾闸室边墙塑性破坏区深度2.2～4.8m,在一定程度上提高洞室群的整体稳...
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| 关 键 词： | 系统锚杆 地下厂房 稳定性 数值分析 |
NUMERICAL ANALYSIS OF THE INFLUENCE OF SYSTEMATIC ANCHORS ON THE STABILITY OF UNDERGROUND POWERHOUSES |
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| Zhou Hong-fu,Nie De-xin,Wang Chun-shan.NUMERICAL ANALYSIS OF THE INFLUENCE OF SYSTEMATIC ANCHORS ON THE STABILITY OF UNDERGROUND POWERHOUSES[J].Journal of Geological Hazards and Environment Preservation,2011,22(3):67-73. |
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| Authors: | Zhou Hong-fu Nie De-xin Wang Chun-shan |
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| Institution: | Zhou Hong-fu1,Nie De-xin2,Wang Chun-shan1(1.Chengdu Institute of Geology & Mineral Resources,Chengdu 610081,China,2.Environment & Civil Engineer College,Chengdu University of Technology,Chengdu 610059,China) |
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| Abstract: | The differences of whether the powerhouses are supported by systematic anchors are studied with the method of numerical analysis to explore the influence of systematic anchors on the stability of underground planthouses.The results show that systematic anchors don't influence the principal stress of wall-rocks much while they can increase the holistic stability.They reduced the average displacement by 28.07%,the displacement at vaults and tops more than 34% and the depth of the plastic damage zone at the ma... |
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| Keywords: | Systematic anchors underground planthouses stability numerical analysis |
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