| 煤矿深部巷道破坏规律及返修支护技术 |
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| 引用本文： | 刘倡清,冯晓光,王金华,韩强,党超,徐小兵.煤矿深部巷道破坏规律及返修支护技术[J].西安科技大学学报,2011,31(3). |
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| 作者姓名： | 刘倡清 冯晓光 王金华 韩强 党超 徐小兵 |
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| 作者单位： | 西安科技大学,建筑与土木工程学院,陕西,西安,710054 |
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| 基金项目： | 陕西省教育厅科研计划资助项目资助，高等学校博士学科点专项科研基金资助 |
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| 摘 要： | 采用钻孔窥视测试和理论分析相结合的手段分析了魏家地煤矿二号石门的破坏规律,得到二号石门围岩稳定的主要因素包括高应力、软弱围岩、断层、埋深和采动的影响.给出了二号石门包含的全岩、上岩下煤、全煤及上煤下岩等4个特征段的破坏规律.提出了留设柔垫层让压联合返修支护技术.现场应用表明:返修后巷道的变形控制始终在允许范围内,返修支护技术是合理的.
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| 关 键 词： | 煤矿深部巷道 破坏规律 锚网索 锚注 留设柔垫层让压技术 |
Failure law and repair support technology of roadway in deep coal mine |
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| LIU Chang-qing,FENG Xiao-guang,WANG Jin-hua,HAN Qiang,DANG Chao,XU Xiao-bing.Failure law and repair support technology of roadway in deep coal mine[J].JOurnal of XI’an University of Science and Technology,2011,31(3). |
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| Authors: | LIU Chang-qing FENG Xiao-guang WANG Jin-hua HAN Qiang DANG Chao XU Xiao-bing |
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| Institution: | LIU Chang-qing,FENG Xiao-guang,WANG Jin-hua,HAN Qiang,DANG Chao,XU Xiao-bing(College of Architecture and Civil Engineering,Xi'an University of Science and Technology,Xi'an 710054,China) |
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| Abstract: | Failure law of No.2 crosscut was analyzed by theoretical analysis and in-situ test with borehole camera.The stability factors of No.2 crosscut repair section was affected by high stress,soft rock,geological structure,etc.Failure laws of four feature sections were obtained that they were whole'rock area,upper-rock and nether-coal area,whole-coal area,upper-coal and nether-rock area.The combined repair schemes of pressure relief technology with reserved flexible cushion support were defined.Field studies show... |
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| Keywords: | deep coal mine roadway failure law bolt-mesh-anchor bolt-grouting pressure relief technology with reserved flexible cushion |
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