| 复杂条件下大断面硐室围岩稳定性控制研究 |
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| 引用本文： | 郝明月.复杂条件下大断面硐室围岩稳定性控制研究[J].中州煤炭,2018,0(8):191-195. |
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| 作者姓名： | 郝明月 |
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| 作者单位： | （河南能源化工集团永煤公司 陈四楼煤矿，河南 永城 476600） |
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| 摘 要： | 针对陈四楼煤矿九采区复杂地质条件下大断面硐室围岩经常大面积严重破坏且围岩稳定性控制难度不断增大的问题，采用现场调查、试验研究和数值模拟的方法，分析了硐室围岩变形破坏特征，提出了锚杆锚索协同支护控制技术。采用数值模拟软件FLAC3D对锚杆锚索支护后硐室围岩的水平应力场、垂直应力场及破坏场分布进行模拟，结果表明:硐室围岩支护效果良好，硐室能保持长期稳定。对类似条件下大断面硐室支护具有一定的指导意义。
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| 关 键 词： | 大断面硐室 围岩变形 支护技术 稳定性 数值模拟 |
Study on stability control of surrounding rock with large section timber |
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| Hao Mingyue. Study on stability control of surrounding rock with large section timber[J].Zhongzhou Coal,2018,0(8):191-195. |
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| Authors: | Hao Mingyue |
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| Affiliation: | （Chensilou Coal Mine of Yongcheng Coal Electric Company，Henan Energy and Chemical Group，Yongcheng 476600，China） |
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| Abstract: | In view of the problem that the surrounding rock of large section chamber was seriously damaged and the stability of surrounding rock was more difficult to control under complex geological conditions，the deformation and failure characteristics of the surrounding rock were analyzed by field investigation，experimental research and numerical simulation，and the control technology of bolt and anchor cable co support was put forward.The numerical simulation software FLAC3D was used to simulate the horizontal stress field，the vertical stress field and the failure field distribution of the surrounding rock after bolting and cable support，and the results showed that the supporting effect of chamber surrounding rock was good，and the chamber can maintain long-term stability，which was of guiding significance for large section chamber support under similar conditions. |
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| Keywords: | ,large section chamber, deformation of surrounding rock, supporting technology, stability, numerical simulation |
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