矿山地震监测台站的空间分布研究与应用
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摘要
为了提高矿山地震定位精度,在分析定位误差产生原因的基础上,研究了矿震监测台站的空间分布,提出了台站空间分布准则。研究表明,定位误差主要来自于随机定位误差和系统偏差。在给定速度模型时,随机误差由地震波到时准确性和震中与观测站间的几何图形来决定。通过在北京昊华能源有限公司木城涧煤矿的实际应用表明,该方法有效地提高了矿震定位的精度。
In order to increase the orientation precision,studied spatial distribution of monitoring stations and interrogated the theory through analysis the reason of causing orientation bias.Research indicates that the orientation error might be considered to consist of two components:random orientation scatters and systematic bias.For a given velocity model,random errors depend upon the accuracy of seismic wave arrivals determination and the geometry between the hypocenter and seismic stations.Through application of Muchengjian Coal Mine of Beijing Haohua Energy Resource Co.,Ltd.,practice prove that the method effectually increases precision of mines seismic monitoring.
In order to increase the orientation precision,studied spatial distribution of monitoring stations and interrogated the theory through analysis the reason of causing orientation bias.Research indicates that the orientation error might be considered to consist of two components:random orientation scatters and systematic bias.For a given velocity model,random errors depend upon the accuracy of seismic wave arrivals determination and the geometry between the hypocenter and seismic stations.Through application of Muchengjian Coal Mine of Beijing Haohua Energy Resource Co.,Ltd.,practice prove that the method effectually increases precision of mines seismic monitoring.
引文
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[2]姜福兴,王平,冯增强,等.复合型厚煤层“震-冲”型动力灾害机理、预测与控制[J].煤炭学报,2009,34(12):1 605-1609.Jiang Fuxing,Wang Ping,Feng Zengqiang,et al.Mechanism,predic-tion and control of“rock burst induced by shock bump”kind dynamicaccident in composite thickness coal[J].Journal of China Coal Soci-ety,2009,34(12):1 605-1 609.
[3]李铁,蔡美峰.地震诱发煤矿瓦斯灾害成核机理的探讨[J].煤炭学报,2008,33(10):1 112-1 116.Li Tie,Cai Meifeng.Themechanism of earthquake-induced gas disas-ter nucleation in coal mines[J].Journal of China Coal Society,2008,33(10):1 112-1 116.
[4]潘一山,赵扬锋,官福海,等.矿震监测定位系统的研究与应用[J].岩石力学与工程学报,2007,26(5):1 002-1 011.Pan Yishan,Zhao Yangfeng,Guan Fuhai,et al.Study on rockburstmonitoring and orientation system and its application,2007,26(5):1 002-1 011.
[5]Skoko D,Sato Y.Optimumdistribution of seismic observation points,III[J].Bull.Enrthq.Res.Insr.Tokyo Univ.,1966,44:13-22.
[6]Crosson R S.Small earthquakes,structure and tectonics of the PeugetSound region[J].Bull.Seism.Sot.Am.,1972,62:1 133-l 171.
[7]Peters D C,Crosson R S.ADD lication of orediction analysis to hypo-center determination using g local array[J].Bull.Seism.Sot.Am.,1972,62:775-788.
[8]Arora S K,Varghese TG,Basu TK.Relative performance of differ-ent triangular networks in locating regional seismic sources[J].Proc.Indian Acad.Sci.,(E&P Sciences-4),1978,81:271-282.
[9]Kijko A,Sciocatt M.Optimal spatial distribution of seismic stationsin mines[J].Rock Mech.Min.Sci.&Geomech.Absfr.,1995,32(6):607-615.
[10]Uhrhammer R A.The optimal estimation of earthquake parameters[J].Phys.Earth Planet.Inreriors,1982,4:1 369-1 379.
[11]Gibowicz S J,Kijko A.An introduction to mining seismology[M].New York:Academic Press,1994.
[12]中国地质局监测预报司.数字地震观测技术[M].北京:地震出版社,2003.
[13]官福海.木城涧煤矿矿震监测定位系统的研究与应用[D].阜新:辽宁工程技术大学,2007.Guan Fuhai.Study and application of rock burst monitoring and ori-entation system of Muchengjian Colliery[D].Fuxin:Liaoning Tech-nical University,2007.
[14]张银平.岩体声发射与微震监测定位技术及其应用[J].工程爆破,2002,8(1):58-61.Zhang Yinping.Rock-mass acoustic emission and micro-seismicmonitoring and localizing technology and its application[J].Engi-neering Blasting,2002,8(1):58-61.
[15]王焕义.岩体微震事件的精确定位研究[J].工程爆破,2001,7(3):5-8.Wang Huanyi.Study on precise localization of micro-seismic eventsin a rock-mass[J].Engineering Blasting,2001,7(3):5-8.
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