基于关联因素前兆监测的冲击地压发生区域与时期初探
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摘要
为对后续开采活动起到警示作用,在强冲击危险区域,采用现场实测的方法得到冲击地压、微震、顶板破断以及采动应力分布等数据,并进行关联规律分析。分析结果表明:超前支承压力影响区域是冲击地压、微震事件的主要发生区域,但冲击地压还会发生在超前支承压力影响之外的微震活动区;基本顶垮断周期、本工作面与邻近采空区沟通导致高位岩层见方垮断周期以及微震活动周期是冲击地压发生的可能时期;以上3个周期近似同步时,超前支承压力影响范围内冲击地压发生概率明显增加。
In order to serve as a warning for the following mining activities,the monitoring data of rock burst,microseismic,roof breaking and stress distribution induced by mining were got;and the relating rules with each other were analyzed through field measurement method,in a strong dangerous area of rock bursting.The analysis results show that the affected area of advanced abutment pressure are the main occurring area of rockburst and microseismicity;but rock burst may occur in the area of microseismic activity where out of the affected area of advanced abutment pressure.Rock burst may occur during the period of main roof breaking,the period of high rock stratum breaking when the shape of goaf is approximate to square,and the period of microseismicity.When all the above three period are approximately synchronous,the probability of occurrence of rock burst will increase obviously in the affected area of advanced abutment pressure.
In order to serve as a warning for the following mining activities,the monitoring data of rock burst,microseismic,roof breaking and stress distribution induced by mining were got;and the relating rules with each other were analyzed through field measurement method,in a strong dangerous area of rock bursting.The analysis results show that the affected area of advanced abutment pressure are the main occurring area of rockburst and microseismicity;but rock burst may occur in the area of microseismic activity where out of the affected area of advanced abutment pressure.Rock burst may occur during the period of main roof breaking,the period of high rock stratum breaking when the shape of goaf is approximate to square,and the period of microseismicity.When all the above three period are approximately synchronous,the probability of occurrence of rock burst will increase obviously in the affected area of advanced abutment pressure.
引文
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[12]潘俊锋,夏永学,王书文,等.基于冲击启动理论的冲击地压层次化预测及防治技术研究[R].北京:天地科技股份有限公司开采设计事业部,2011:65-70.(PANJunfeng,XIAYongxue,WANGShuwen,et al.Study on hierarchical prediction and prevention techniques ofrock burst based on the theory of rock burst starting[R].Beijing:CoalMining and Designing Department,Tiandi Science and TechnologyCo.,Ltd.,2011:65-70.(in Chinese))
[13]李希勇,陈尚本,张修峰.保护层开采防治冲击地压的应用研究[J].煤矿开采,1997,(2):18-20.(LI Xiyong,CHEN Shangben,ZHANGXiufeng.Application study of the prevention of mine pressure bumpingfor protected coal seam mining[J].Coal Mining Technology,1997,(2):18-20.(in Chinese))
[14]徐学锋,窦林名,刘军,等.煤矿巷道底板冲击矿压发生的原因及控制研究[J].岩土力学,2010,31(6):1977-1982.(XU Xuefeng,DOU Linming,LIU Jun,et al.Research of reasons and controlling forfloor burst in coal mine roadway[J].Rock and Soil Mechanics,2010,31(6):1 977-1 982.(in Chinese))
[15]段伟,邹德蕴,胡英俊.冲击地压应力监测预报系统的研制与应用[J].采矿与安全工程学报,2008,25(1):78-81.(DUAN Wei,ZOU Deyun,HU Yingjun.Development and application of rock burstforecast information system[J].Journal of Mining and SafetyEngineering,2008,25(1):78-81.(in Chinese))
[16]潘俊锋,蓝航,毛德兵.冲击地压危险源层次化辨识理论研究[J].岩石力学与工程学报,2011,30(增1):2844-2849.(PAN Junfeng,LAN Hang,MAO Debing.Study on hierarchical recognition theory ofhazard source in rock burst[J].Chinese Journal of Rock Mechanicsand Engineering,2011,30(Suup.1):2 844-2 849.(in Chinese))
[17]谭云亮,李芳成,周辉,等.冲击地压声发射前兆模式初步研究[J].岩石力学与工程学报,2000,19(4):425-428.(TAN Yunliang,LIFangcheng,ZHOU Hui,et al.Preliminary study of acoustic emissionprecursor pattern for rock burst[J].Chinese Journal of Rock Mechanics andEngineering,2000,19(4):425-428.(in Chinese))
[18]姜福兴,杨淑华,成云海.煤矿冲击地压的微地震监测研究[J].地球物理学报,2006,49(5):1513-1516.(JIANG Fuxing,YANGShuhua,CHENG Yunhai.A study of microseismic monitoring ofrock burst in coal mine[J].Chinese Journal of Geophysics,2006,49(5):1 513-1 516.(in Chinese))
[19]潘俊锋,宁宇,毛德兵,等.煤矿开采冲击地压启动理论[J].岩石力学与工程学报,2012,31(3):586-596.(PAN Junfeng,NINGYu,MAO Debing,et al.Theory of rock burst start-up during coalmining[J].Chinese Journal of Rock Mechanics and Engineering,2012,31(3):586-596.(in Chinese))
[2]潘俊锋.半孤岛面全煤巷道底板冲击启动原理分析[J].煤炭学报,2011,36(增2):332-337.(PAN Junfeng.Start-up principium of rockburst in whole coal roadway floor in half-island face[J].Journal ofChina Coal Society,2011,36(Suup.2):332-337.(in Chinese))
[3]潘一山,李忠华,章梦涛.我国冲击地压分布、类型、机制及防治研究[J].岩石力学与工程学报,2003,22(11):1844-1851.(PAN Yishan,LI Zhonghua,ZHANG Mengtao.Distribution,type,mechanism and prevention of rock burst in China[J].Chinese Journalof Rock Mechanics and Engineering,2003,22(11):1 844-1 851.(inChinese))
[4]牛宝林,邸建友,唐绍琴.底板冲击矿压发生机制与防治[J].煤矿开采,1999,(1):20-23.(NIU Baolin,DI Jianyou,TANG Shaoqin.Mechanism and prevention of floor burst[J].Coal Mining Technology1999,(1):20-23.(in Chinese))
[5]高明仕,窦林名,张农,等.冲击矿压巷道围岩控制的强弱强力学模型及其应用分析[J].岩土力学,2008,29(2):359-363.(GAOMingshi,DOU Linming,ZHANG Nong,et al.Burst strength ofsurrounding rock control of powerful learning model and its application[J].Rock and Soil Mechanics,2008,29(2):359-363.(in Chinese))
[6]苏承东,李化敏.深埋高应力区巷道冲击地压预测与防治方法研究[J].岩石力学与工程学报,2008,27(增2):3841-3846.(SU Chengdong,LI Huamin.Study on forecast and prevention methods for rockburst ofdeep roadway with high geostress[J].Chinese Journal of Rock Mechanicsand Engineering,2008,27(Suup.2):3 841-3 846.(in Chinese))
[7]姜福兴,王平,冯增强,等.复合型厚煤层“震-冲”型动力灾害机制、预测与控制[J].煤炭学报,2009,34(12):1605-1609.(JIANG Fuxing,WANG Ping,FENG Zengqiang,et al.Mechanism,prediction and control of rockburst induced by shock bump kinddynamic accident in composite thickness coal[J].Journal of ChinaCoal Society,2009,34(12):1 605-1 609.(in Chinese))
[8]齐庆新,雷毅,李宏艳,等.深孔断顶爆破防治冲击地压的理论与实践[J].岩石力学与工程学报,2007,26(增1):3522-3527.(QIQingxin,LEI Yi,LI Hongyan,et al.Theory and application ofprediction of rock burst by break-tip blast in deep hole[J].ChineseJournal of Rock Mechanics and Engineering,2007,26(Supp.1):3 522-3 527.(in Chinese))
[9]窦林名,陆菜平,牟宗龙,等.冲击矿压的强度弱化减冲理论及其应用[J].煤炭学报,2005,30(5):690-694.(DOU Linming,LUCaiping,MU Zonglong,et al.Intensity weakening theory forrockburst and its application[J].Journal of China Coal Society,2005,30(5):690-694.(in Chinese))
[10]潘俊锋,杜涛涛,王书文,等.巨厚砾岩孤岛区高强度开采冲击致灾性与控制研究[R].北京:天地科技股份有限公司开采设计事业部,2011:40-120.(PAN Junfeng,DU Taotao,WANG Shuwen,et al.Study on rock burst catastrophability and prevention of high-intensity coal mining in island face with thick gravel stratum[R].Beijing:Coal Mining and Designing Department,Tiandi Science andTechnology Co.,Ltd.,2011:40-120.(in Chinese))
[11]陆菜平,刘海顺,刘彪,等.深部高应力异常集中区冲击矿压动态防治实践[J].煤炭学报,2010,35(12):1985-1988.(LU Caiping,LIU Haishun,LIU Biao,et al.Practice of rockburst dynamic preventionin deep high stress concentration district[J].Journal of China CoalSociety,2010,35(12):1 985-1 988.(in Chinese))
[12]潘俊锋,夏永学,王书文,等.基于冲击启动理论的冲击地压层次化预测及防治技术研究[R].北京:天地科技股份有限公司开采设计事业部,2011:65-70.(PANJunfeng,XIAYongxue,WANGShuwen,et al.Study on hierarchical prediction and prevention techniques ofrock burst based on the theory of rock burst starting[R].Beijing:CoalMining and Designing Department,Tiandi Science and TechnologyCo.,Ltd.,2011:65-70.(in Chinese))
[13]李希勇,陈尚本,张修峰.保护层开采防治冲击地压的应用研究[J].煤矿开采,1997,(2):18-20.(LI Xiyong,CHEN Shangben,ZHANGXiufeng.Application study of the prevention of mine pressure bumpingfor protected coal seam mining[J].Coal Mining Technology,1997,(2):18-20.(in Chinese))
[14]徐学锋,窦林名,刘军,等.煤矿巷道底板冲击矿压发生的原因及控制研究[J].岩土力学,2010,31(6):1977-1982.(XU Xuefeng,DOU Linming,LIU Jun,et al.Research of reasons and controlling forfloor burst in coal mine roadway[J].Rock and Soil Mechanics,2010,31(6):1 977-1 982.(in Chinese))
[15]段伟,邹德蕴,胡英俊.冲击地压应力监测预报系统的研制与应用[J].采矿与安全工程学报,2008,25(1):78-81.(DUAN Wei,ZOU Deyun,HU Yingjun.Development and application of rock burstforecast information system[J].Journal of Mining and SafetyEngineering,2008,25(1):78-81.(in Chinese))
[16]潘俊锋,蓝航,毛德兵.冲击地压危险源层次化辨识理论研究[J].岩石力学与工程学报,2011,30(增1):2844-2849.(PAN Junfeng,LAN Hang,MAO Debing.Study on hierarchical recognition theory ofhazard source in rock burst[J].Chinese Journal of Rock Mechanicsand Engineering,2011,30(Suup.1):2 844-2 849.(in Chinese))
[17]谭云亮,李芳成,周辉,等.冲击地压声发射前兆模式初步研究[J].岩石力学与工程学报,2000,19(4):425-428.(TAN Yunliang,LIFangcheng,ZHOU Hui,et al.Preliminary study of acoustic emissionprecursor pattern for rock burst[J].Chinese Journal of Rock Mechanics andEngineering,2000,19(4):425-428.(in Chinese))
[18]姜福兴,杨淑华,成云海.煤矿冲击地压的微地震监测研究[J].地球物理学报,2006,49(5):1513-1516.(JIANG Fuxing,YANGShuhua,CHENG Yunhai.A study of microseismic monitoring ofrock burst in coal mine[J].Chinese Journal of Geophysics,2006,49(5):1 513-1 516.(in Chinese))
[19]潘俊锋,宁宇,毛德兵,等.煤矿开采冲击地压启动理论[J].岩石力学与工程学报,2012,31(3):586-596.(PAN Junfeng,NINGYu,MAO Debing,et al.Theory of rock burst start-up during coalmining[J].Chinese Journal of Rock Mechanics and Engineering,2012,31(3):586-596.(in Chinese))
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