| 新桥矿软岩大巷变形破坏机理及修复技术研究 |
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| 引用本文： | 张志勇,李江峰,王龙龙.新桥矿软岩大巷变形破坏机理及修复技术研究[J].中州煤炭,2011(2). |
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| 作者姓名： | 张志勇 李江峰 王龙龙 |
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| 作者单位： | 1. 中国矿业大学矿业工程学院,江苏,徐州,221008;河南煤业化工集团永煤公司,河南,永城,476600
2. 中国矿业大学矿业工程学院,江苏,徐州,221008 |
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| 基金项目： | 教育部科学技术研究重点项目资助 |
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| 摘 要： | 新桥矿-550 m北翼轨道大巷底鼓剧烈,最大底鼓达到800 mm,严重影响巷道的正常使用.从巷道的围岩力学性质、应力状态以及原支护强度出发,分析了影响巷道底鼓的主要因素.根据影响底鼓的因素,提出了顶帮锚网索+底角锚杆+底板锚索的控制措施,并结合FLAC2D数值模拟进行了分析比较.工程实践表明,方案实施效果良好,有效控制了巷道底鼓.
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| 关 键 词： | 软岩 岩石大巷 底鼓 数值模拟 |
Study on Deformation Failure Mechanism and Repair Technology of Soft Main Roadway in Xinqiao Coal Mine |
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| Zhang Zhiyong,Li Jiangfeng,Wang Longlong.Study on Deformation Failure Mechanism and Repair Technology of Soft Main Roadway in Xinqiao Coal Mine[J].Zhongzhou Coal,2011(2). |
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| Authors: | Zhang Zhiyong Li Jiangfeng Wang Longlong |
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| Affiliation: | Zhang Zhiyong1,2,Li Jiangfeng1,Wang Longlong1(1.School of Mining Engineering,China University of Mining and Technology,Xuzhou 221008,China,2.Yongcheng Coal Industry Co.,Ltd.,Henan Coal Industry and Chemistry Group Co.,Yongcheng 476600,China) |
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| Abstract: | The floor heave of the north main roadway at-550 m level in Xinqiao Coal Mine is serious,the maximum up to 800 mm,which affects the normal usage of roadway.Major factors that lead to floor heave were analyzed as following:mechanical property and stress situation of surrounding rock,original support strengthen.Based on these factors,a measure that bolts,anchor and metal nets on the roof,bolting in the corner of the floor,anchor into the floor was put forward.Comparision of the new technology to the old techn... |
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| Keywords: | soft rock main rock roadway floor heave numerical simulation |
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