| 倾斜中厚煤层窄煤柱沿空掘巷支护技术研究 |
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| 引用本文： | 刘延超.倾斜中厚煤层窄煤柱沿空掘巷支护技术研究[J].煤矿现代化,2019(4):7-9. |
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| 作者姓名： | 刘延超 |
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| 作者单位： | 云南能投威信煤炭有限公司 |
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| 摘 要： | 本文以7121工作面倾斜中厚煤层5m窄煤柱沿空掘巷为工程背景,采用FLAC3D数值模拟软件对沿空掘巷后围岩的应力及位移分布规律进行研究,进而提出了采用高强锚杆+锚索+金属网+托盘的耦合支护体系来控制巷道围岩变形。工业性试验结果表明,巷道顶底板移近量580mm,两帮移近量为992mm,围岩变形处于可控范围,实现了工作面的安全高效回采。
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| 关 键 词： | 倾斜 中厚煤层 窄煤柱 沿空掘巷 耦合支护 |
Study on supporting technology of narrow coal pillar driving roadway along goaf in inclined middle thick seam |
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| LIU Yanchao.Study on supporting technology of narrow coal pillar driving roadway along goaf in inclined middle thick seam[J].Coal Mine Modernization,2019(4):7-9. |
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| Authors: | LIU Yanchao |
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| Affiliation: | (Yunnan Energy Investment Weixin Coal Co. ,Ltd. ,Yunnan Zhaotong 657900) |
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| Abstract: | LIU Yanchao(Yunnan Energy Investment Weixin Coal Co. ,Ltd. ,Yunnan Zhaotong 657900) |
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| Keywords: | inclined medium thick seam narrow coal pillar driving along the GOAF coupling support |
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