基于防冲的孤岛工作面分类及应用研究
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摘要
针对目前煤矿孤岛工作面冲击地压类型复杂且治理缺乏针对性的问题,提出了"分类防治"的思路,围绕导致孤岛工作面冲击的高应力这一本质原因,并综合考虑覆岩运动、地质构造、开采、空间等因素,基于防冲对孤岛工作面进行分类;将孤岛工作面分为充分采动、非充分采动、充分-非充分采动、立体、"隐性"和复合型6种类型;将该分类方法应用于孤岛工作面采前冲击危险性评估,并根据评估结果对孤岛工作面冲击地压实施分类防治。研究结果表明:该分类方法可有效控制孤岛工作面冲击地压灾害。
Aiming at the problems that the rock burst of isolated island working face in the coal mine has the complex types and the control is lack of pertinence at present,the idea of "classified prevention and control"was put forward. Around the essential reason of high stress that caused the burst of isolated island working face,and comprehensively considering the factors of overlying strata movement,geological structure,mining and space,the isolated island working face was classified based on the burst prevention. The isolated island working face was divided into six types,including the sufficient mining,insufficient mining,sufficient-insufficient mining,stereoscopic,"recessive"and compound type. The classification method was applied in the risk assessment of rock burst before mining in the isolated island working face,and the classified prevention and control was implemented on the rock burst of isolated island working face according to the assessment results. It showed that the classification method could effectively control the rock burst hazard of the isolated island working face.
Aiming at the problems that the rock burst of isolated island working face in the coal mine has the complex types and the control is lack of pertinence at present,the idea of "classified prevention and control"was put forward. Around the essential reason of high stress that caused the burst of isolated island working face,and comprehensively considering the factors of overlying strata movement,geological structure,mining and space,the isolated island working face was classified based on the burst prevention. The isolated island working face was divided into six types,including the sufficient mining,insufficient mining,sufficient-insufficient mining,stereoscopic,"recessive"and compound type. The classification method was applied in the risk assessment of rock burst before mining in the isolated island working face,and the classified prevention and control was implemented on the rock burst of isolated island working face according to the assessment results. It showed that the classification method could effectively control the rock burst hazard of the isolated island working face.
引文
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[12]冯宇,姜福兴,李京达.孤岛工作面围岩整体失稳冲击危险性评估方法[J].煤炭学报,2015,40(5):1001-1007.FENG Yu,JIANG Fuxing,LI Jingda. Evaluation method of rock burst hazard induced by overall instability of island coal face[J].Journal of China Coal Society,2015,40(5):1001-1007.
[13]齐庆新,李晓璐,赵善坤.煤矿冲击地压应力控制理论与实践[J].煤炭科学技术,2013,41(6):1-5.QI Qingxin,LI Xiaolu,ZHAO Shankun. Theory and practices on stress control of mine pressure bumping[J]. Coal Science and Technology,2013,41(6):1-5.
[14]杨伟利,姜福兴,杨鹏.煤矿区域孤岛工作面极限采出率研究[J].煤矿安全,2015,46(10):36-39.YANG Weili,JIANG Fuxing,YANG Peng. Study on limit recovery ratio of regional island coal face in coal mine[J]. Safety in Coal Mines,2015,46(10):36-39.
[15]杨伟利.煤矿孤岛工作面冲击危险性识别与防冲研究[D].北京:北京科技大学,2016:32-42.
[2]潘立友,张若祥,孔繁鹏.基于缺陷法孤岛工作面冲击地压防治技术研究[J].煤炭科学技术,2013,41(6):14-16,45.PAN Liyou,ZHANG Ruoxiang,KONG Fanpeng. Study on mine pressure bumping prevention and control technology of coal mining face in seam island based on defect method[J]. Coal Science and Technology,2013,41(6):14-16,45.
[3]李佃平.煤矿边角孤岛工作面诱冲机理及其控制研究[D].北京:中国矿业大学(北京),2012.
[4]汪华君.四面采空场“θ”型覆岩多层空间结构运动及控制研究[D].泰安:山东科技大学,2005.
[5]蓝航,陈东科,毛德兵.我国煤矿深部开采现状及灾害防治分析[J].煤炭科学技术,2016,44(1):39-46.LAN Hang,CHEN Dongke,MAO Debing. Current status of deep mining and disaster prevention in China[J]. Coal Science and Technology,2016,44(1):39-46.
[6]潘一山,李忠华,章梦涛.我国冲击地压分布、类型、机理及防治研究[J].岩石力学与工程学报,2003,22(11):1845-1851.PAN Yishan,LI Zhonghua,ZHANG Mengtao. Distribution,type,mechanism and prevention of rockburst in China[J]. Chinese Journal of Rock Mechanics and Engineering,2003,22(11):1845-1851.
[7]窦林名,何烨,张卫东.孤岛工作面冲击矿压危险及其控制[J].岩石力学与工程学报,2003,22(11):1866-1869.DOU Linming,HE Ye,ZHANG Weidong. Hazards of rock burst in island coal face and its control[J]. Chinese Journal of Rock Mechanics and Engineering,2003,22(11):1866-1869.
[8]姜福兴,王同旭,汪华君,等.四面采空“孤岛”综放采场矿压控制的研究与实践[J].岩土工程学报,2005,27(9):1101-1104.JIANG Fuxing,WANG Tongxu,WANG Huajun,et al. Research and practice on pressure control of sub-level longwall face surrounded by mined areas[J]. Journal of Rock and Soil Mechanics,2005,27(9):1101-1104.
[9]王宏伟,姜耀东,杨忠东,等.长壁孤岛工作面煤岩冲击危险性区域多参量预测[J].煤炭学报,2012,37(11):1791-1795.WANG Hongwei,JIANG Yaodong,YANG Zhongdong,et al. Multivariable assessment of coal bump risk during extraction of an island longwall panel[J]. Journal of China Coal Society,2012,37(11):1791-1795.
[10]杨光宇,姜福兴,李琳,等.复合动力灾害条件下孤岛工作面区段煤柱宽度留设研究[J].中国安全生产科学技术,2017,13(8):145-151.YANG Guangyu,JIANG Fuxing,LI Lin,et al. Study on width retaining of section coal pillar in isolated working face under the conditions of compound dynamic disasters[J]. Journal of Safety Science and Technology,2017,13(8):145-151.
[11]于正兴,姜福兴,桂兵.冲击地压危险性的宏观评价方法在“孤岛”工作面的应用[J].矿业安全与环保,2011,38(5):30-32.YU Zhengxing,JIANG Fuxing,GUI Bing. The application to macroscopic evaluation method of rock burst risk in"isolated island"working face[J]. Mining Safety and Environmental Protection,2011,38(5):30-32.
[12]冯宇,姜福兴,李京达.孤岛工作面围岩整体失稳冲击危险性评估方法[J].煤炭学报,2015,40(5):1001-1007.FENG Yu,JIANG Fuxing,LI Jingda. Evaluation method of rock burst hazard induced by overall instability of island coal face[J].Journal of China Coal Society,2015,40(5):1001-1007.
[13]齐庆新,李晓璐,赵善坤.煤矿冲击地压应力控制理论与实践[J].煤炭科学技术,2013,41(6):1-5.QI Qingxin,LI Xiaolu,ZHAO Shankun. Theory and practices on stress control of mine pressure bumping[J]. Coal Science and Technology,2013,41(6):1-5.
[14]杨伟利,姜福兴,杨鹏.煤矿区域孤岛工作面极限采出率研究[J].煤矿安全,2015,46(10):36-39.YANG Weili,JIANG Fuxing,YANG Peng. Study on limit recovery ratio of regional island coal face in coal mine[J]. Safety in Coal Mines,2015,46(10):36-39.
[15]杨伟利.煤矿孤岛工作面冲击危险性识别与防冲研究[D].北京:北京科技大学,2016:32-42.