深井矿山岩爆灾害微震监测技术应用研究
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摘要
会泽矿区深部矿体资源埋藏深度达1000m,原岩应力较大,矿体赋存于10余条断层所控制的破碎带中,开采条件十分复杂.根据矿山实际情况建立了一套24通道微震监测系统,建立的数字化多通道微震监测系统具有先进和丰富的地震学定量分析和可视化解释功能.采用人工爆破震源对微震监测系统的定位精度进行了3次测试,监测范围内的震源定位误差为3.16～6.78m,达到了预期目的.在现场监测数据的基础上,对微震事件b值时序特征、震源应力降及微震势体积等参数进行了分析,揭示了采动应力场与微震活动性之间的时空内在联系,提出了以微震势体积一阶差分的变化计算岩体安全系数,统计得出了岩体安全系数与岩爆活动的相关关系.
The Huize mineral field is buried in the depth of 1 000 m,and it has the high stress. The ore body exists in crush belt which is controlled bymore than 10 faults,and the miningconditions are verycomplicated. Accordingtothe actual situation in mine,the authors have established digitalized 24-channel micro-seismic monitoring system,and it is of seismology quantitative analysis and visualization interpretation. Using blasting to locate the accuracy of micro-seismic monitoring system for three tests,within the scope of monitoring,the source location error is the 3.16～6.78 m,and it has achieved the expected aim. On the basis ofsixmonths' monitor data,and with the analysis ofthe time sequence characteristics of b value of micro-seismic events,the source stress drop parameters and the difference of cumulative potency,and so on, the time and space relationship between the mining pressure field and micro-seismic events is discovered. This paper has outlined that applying first difference of cumulative potency to calculation of safety factor,and summed up the relation between safetyfactor and rockburst.
The Huize mineral field is buried in the depth of 1 000 m,and it has the high stress. The ore body exists in crush belt which is controlled bymore than 10 faults,and the miningconditions are verycomplicated. Accordingtothe actual situation in mine,the authors have established digitalized 24-channel micro-seismic monitoring system,and it is of seismology quantitative analysis and visualization interpretation. Using blasting to locate the accuracy of micro-seismic monitoring system for three tests,within the scope of monitoring,the source location error is the 3.16～6.78 m,and it has achieved the expected aim. On the basis ofsixmonths' monitor data,and with the analysis ofthe time sequence characteristics of b value of micro-seismic events,the source stress drop parameters and the difference of cumulative potency,and so on, the time and space relationship between the mining pressure field and micro-seismic events is discovered. This paper has outlined that applying first difference of cumulative potency to calculation of safety factor,and summed up the relation between safetyfactor and rockburst.
引文
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[6]唐绍辉,吴壮军,陈向华.地下深井矿山岩爆发生规律及形成机理研究.岩石力学与工程学报,2003,22(8):8-11.TANG Shaohui,WU Zhuangjun,CHEN Xianghua,et al.Approach to occurrence and mechanism of rockburst in deep underground mines[J].Chinese Journal of Rock Mechanics and Engineering,2003,22(8):8-11(.in Chinese)
[7]唐礼忠,潘长良,杨承祥,等.冬瓜山铜矿微震监测系统及其应用研究[J],金属矿山,2006,(10):41-44.TANG Lizhong,PAN Changliang,YANG Chengxiang,et al.Establishment and application of microseismicity monitoring system in Dongguashan copper mine[J].Metal Mine,2006,(10):41-44.(in Chinese)
[8]Ge M.Efficient mine microseismic monitoring[J].International Journal of Coal Geology,2005,64(1/2):44-56.
[9]YANG Chengxiang,LUO Zhouquan,HU Guobin,LIU Xiaoming.Application of a microseismic monitoring system in deep mining[J].Journal of Beijing University of Science and Technology,2006,14:6-8.
[10]杨文东,金星,李山有,等.地震定位研究及应用综述[J].地震工程与工程振动,2005,25(1):14-20.YANG Wendong,JIN Xing,LI Shanyou,et al.Study of seismic location methods[J].Earthquake and Engineering Vibration,2005,25(1):14-20(.in Chinese)
[11]赵镇岭.上海地震台阵的地震定位方法[J].地震地磁观测与研究,2004,25:79-85.ZHAO Zhenling.Location method of Shanghai Seismic Array[J].Seismological and Geomagnetic Observation and Research,2004,25:79-85(.in Chinese)
[12]胡宗正,高生,肖建华,等.断层面地震波反射的理论解[J].中国煤田地质,2004,16(3):44-47.HU Zongzheng,GAO Sheng,XIAO Jianhua,et al.Theoretical seismic reflection induced by faults[J].Coal Geology of China,2004,16(3):44-47(.in Chinese)
[13]姜福兴,XUN Luo.微震监测技术在矿井岩层破裂监测中的应用[J].岩土工程学报,2002,24(2):147-149.JIANG Fuxing,XUN Luo.Application of microseismic monitoring technology of strata fracturing in underground coal mine[J].Chinese Journal of Geotechnical Engineering,2002,24(2):147-149.(in Chinese)
[14]逄焕东.岩体微震的模式、定位及其失稳预报研究[D].济南:山东科技大学,2004:79-81.PANG Huandong.Study on Micro Seismic Mode,Location of Rock Mass and Its Collapse Prediction[D].Shandong University of Science and Technology,2004:79-81(.in Chinese)
[15]李永靖,张向东,袁世君,等.抚顺老虎台矿矿山地震活动趋势研究[J].中国矿业,2004(11):315-323.LI Yongjing,ZHANG Xiangdong,YUAN Shijun,et al.Study of Fushun Laohutai Mineral Earthquake Activity trend[J].China Mining Magazine,2004(11):315-323(.in Chinese)
[16]Mendecki A J.Seismic monitoring in mines[M].London:Chapman and Hall,1997:179-184.
[2]唐礼忠,潘长良,杨承祥,等.冬瓜山铜矿微震监测系统及其应用研究[J].金属矿山,2006(10):41-44.TANG Lizhong,PAN Changliang,YANG Chenxiang,et al.Establishment and application of microseismicity monitoring system in Dongguashan copper mine[J].Metal Mine,2006(10):41-44.(in Chinese)
[3]杨承祥,罗周全,唐礼忠.基于微震监测技术的深井开采地压活动规律研究[J].岩石力学与工程学报,2007,26(4):818-824.YANG Chengxiang,LUO Zhouquan,TANG Lizhong.Study on rule of geostatic activity based on microseismic monitoring technique in deep mining[J].Chinese Journal of Rock Mechanics and Engineering,2007,26(4):818-824(.in Chinese)
[4]陈向华,张世奎,唐绍辉,等.对会泽铅锌矿深部10号矿体岩体质量的评价[J].矿业研究与开发,2002,22(2):8-10.CNEN Xianghua,ZHANG Shikui,TANG Shaohui,et al.An evaluation on the rockmass quality of the deep No.10orebody in Huize lead-zinc mine[J].Mining Research and Development,2002,22(2):8-10(.in Chinese)
[5]陈向华,张世奎,唐绍辉,等.会泽铅锌矿6号矿体稳定性工程地质研究.水文地质工程地质,2002,29(4):36-39.CHEN Xianghua,ZHANG shikui,TANG Shaohui,et al.A study of engineering geology on stability of6~#orebody at Huize lead-zinc mine[J].Hydrogeology and Engineering Geology,2002,29(4):36-39.(inChinese)
[6]唐绍辉,吴壮军,陈向华.地下深井矿山岩爆发生规律及形成机理研究.岩石力学与工程学报,2003,22(8):8-11.TANG Shaohui,WU Zhuangjun,CHEN Xianghua,et al.Approach to occurrence and mechanism of rockburst in deep underground mines[J].Chinese Journal of Rock Mechanics and Engineering,2003,22(8):8-11(.in Chinese)
[7]唐礼忠,潘长良,杨承祥,等.冬瓜山铜矿微震监测系统及其应用研究[J],金属矿山,2006,(10):41-44.TANG Lizhong,PAN Changliang,YANG Chengxiang,et al.Establishment and application of microseismicity monitoring system in Dongguashan copper mine[J].Metal Mine,2006,(10):41-44.(in Chinese)
[8]Ge M.Efficient mine microseismic monitoring[J].International Journal of Coal Geology,2005,64(1/2):44-56.
[9]YANG Chengxiang,LUO Zhouquan,HU Guobin,LIU Xiaoming.Application of a microseismic monitoring system in deep mining[J].Journal of Beijing University of Science and Technology,2006,14:6-8.
[10]杨文东,金星,李山有,等.地震定位研究及应用综述[J].地震工程与工程振动,2005,25(1):14-20.YANG Wendong,JIN Xing,LI Shanyou,et al.Study of seismic location methods[J].Earthquake and Engineering Vibration,2005,25(1):14-20(.in Chinese)
[11]赵镇岭.上海地震台阵的地震定位方法[J].地震地磁观测与研究,2004,25:79-85.ZHAO Zhenling.Location method of Shanghai Seismic Array[J].Seismological and Geomagnetic Observation and Research,2004,25:79-85(.in Chinese)
[12]胡宗正,高生,肖建华,等.断层面地震波反射的理论解[J].中国煤田地质,2004,16(3):44-47.HU Zongzheng,GAO Sheng,XIAO Jianhua,et al.Theoretical seismic reflection induced by faults[J].Coal Geology of China,2004,16(3):44-47(.in Chinese)
[13]姜福兴,XUN Luo.微震监测技术在矿井岩层破裂监测中的应用[J].岩土工程学报,2002,24(2):147-149.JIANG Fuxing,XUN Luo.Application of microseismic monitoring technology of strata fracturing in underground coal mine[J].Chinese Journal of Geotechnical Engineering,2002,24(2):147-149.(in Chinese)
[14]逄焕东.岩体微震的模式、定位及其失稳预报研究[D].济南:山东科技大学,2004:79-81.PANG Huandong.Study on Micro Seismic Mode,Location of Rock Mass and Its Collapse Prediction[D].Shandong University of Science and Technology,2004:79-81(.in Chinese)
[15]李永靖,张向东,袁世君,等.抚顺老虎台矿矿山地震活动趋势研究[J].中国矿业,2004(11):315-323.LI Yongjing,ZHANG Xiangdong,YUAN Shijun,et al.Study of Fushun Laohutai Mineral Earthquake Activity trend[J].China Mining Magazine,2004(11):315-323(.in Chinese)
[16]Mendecki A J.Seismic monitoring in mines[M].London:Chapman and Hall,1997:179-184.
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