| 深井破碎软岩巷道支护参数设计研究 |
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| 引用本文： | 李学彬,薛华俊,杨仁树,王茂源,李涛涛,何天宇.深井破碎软岩巷道支护参数设计研究[J].中国矿业,2013,22(12). |
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| 作者姓名： | 李学彬 薛华俊 杨仁树 王茂源 李涛涛 何天宇 |
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| 作者单位： | 中国矿业大学（北京）力学与建筑工程学院,中国矿业大学（北京）力学与建筑工程学院,中国矿业大学（北京）力学与建筑工程学院,中国矿业大学（北京）力学与建筑工程学院,中国矿业大学（北京）力学与建筑工程学院,中国矿业大学（北京）力学与建筑工程学院 |
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| 基金项目： | 国家自然科学基金项目（面上项目，重点项目，重大项目） |
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| 摘 要： | 为减小九龙煤矿软岩巷道北二正巷围岩变形量，通过FLAC3D数值软件对北二正巷的支护参数进行数值模拟分析，对锚杆、锚索、喷层等支护参数进行优化，提出优化的巷道支护方式，并结合在掘进和回采动压条件下对原支护方式与优化巷道支护方式，对巷道围岩的稳定性进行分析。分析结果表明，巷道顶板、帮部、底角锚杆分别采用长2000mm、2200mm、2400mm的Φ20等强度右旋螺纹钢锚杆、喷层厚度180mm、锚索长7000mm，间排距2000*2000mm时，为较优支护方案，能有效保证巷道围岩的稳定性，满足巷道安全和正常生产需要。
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| 关 键 词： | 软岩巷道 数值模拟 支护参数 围岩稳定性 |
| 收稿时间： | 2013/8/22 0:00:00 |
| 修稿时间： | 2013/11/3 0:00:00 |
Design of Support Parameters in Deep Mine Broken and Soft Rock Roadway |
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| Li Xue-bin,Xue Hua-jun,Yang Ren-shu,Wang Mao-yuan,Li Tao-tao and He Tian-yu.Design of Support Parameters in Deep Mine Broken and Soft Rock Roadway[J].China Mining Magazine,2013,22(12). |
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| Authors: | Li Xue-bin Xue Hua-jun Yang Ren-shu Wang Mao-yuan Li Tao-tao and He Tian-yu |
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| Affiliation: | School of Mechanics and Architecture Engineering,China University of Mining and Technology Beijing,School of Mechanics and Architecture Engineering,China University of Mining and Technology Beijing,School of Mechanics and Architecture Engineering,China University of Mining and Technology Beijing,School of Mechanics and Architecture Engineering,China University of Mining and Technology Beijing,School of Mechanics and Architecture Engineering,China University of Mining and Technology Beijing,School of Mechanics and Architecture Engineering,China University of Mining and Technology Beijing |
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| Abstract: | Through FLAC3D numerical software to analyze support parameters of soft rock roadway- the north 2 roadway in Jiulong mine, the paper optimized the support parameters of anchor and shotcrete layer, put forward optimized roadway support method, and analyzed roadway surrounding rock stability of original and optimized roadway support method under the conditions of driving and dynamic mining pressure for the decrease of roadway surrounding rock deformation. The results show that the optimized roadway support method that the length of roof, side and bottom angle equal strength dextral thread steel anchors is 2000mm, 2200mm, 2400mm, the thickness of shotcrete layer is 180mm, the row and line space of the anchors which the length is 7000mm is 2000*2000mm could effectively ensure the roadway surrounding rock stability and meet the need of roadway safety and normal production. |
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| Keywords: | soft rock roadway numerical simulation support parameters surrounding rock stability |
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