无需预先测速的微震震源定位的数学形式及震源参数确定

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Abstract To eliminate the locating error for microseismic monitoring system due to the speed measurement deviation，three innovative nonlinear methods of multi-robe locating were proposed. According to different dependent variables，the source location methods of trigger times(TT)，time difference(TD)，and time difference quotient(TDQ) were proposed. The two traditional location methods with dependent variables of speed and trigger times(STT)，and speed and time difference(STD) were discussed. Firstly，virtual position tests，by the two new methods TT and TD and the traditional methods STT and STD in the floating rate of error at 0，1%，2%，3%，4% and 5% of the real sonic speed，were carried out using 8 sensors，respectively. The errors from two new and traditional methods were compared and analyzed. Results show that the errors of the absolute distance are 0–1.01339 and 0.01–0.014 m from new methods TT and TD without using speed；they are almost close to the 0–0.981 m from traditional methods STT and STD using real speed. However，it is very difficult to measure the speed in practice. There are more or less a certain measurement deviations，and we almost do not know its real value. Therefore，we consider the speed with a smaller error rates of 1%–5% floating，and they resulted in larger errors of source coordinate position；and the larger is up to 24.27 m. Secondly，with the signal of blasting effect as simulation source，the blasting experiments were carried out in Dongguashan copper mine；a deep-level mine in China. The results obtained by the innovative nonlinear methods TT and TD of multi-robe locating were compared with that by traditional methods STT and STD. It was proved that this new nonlinear method TD not only has better locating precision，but also it is more convenient than traditional method. To locate the seismic source by the new nonlinear method，only the times when the signals arrive at the probes need to be measured using the threshold crossing technique of the instrument；and the speed of the propagation medium needs no measurement.

Key words： rock mechanics deep-level mine microseismic sonic speed acoustic emission sensors

Received: 22 April 2011

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[1] MENDECKI A J. Seismic monitoring in mines[M]. London：Chapman and Hall，1997：220–245. [2] LASOCKI S，ORLECKA-SIKORA B. Seismic hazard assessment under complex source size distribution of mining-induced seismicity[J]. Tectonophysics，2008，456(1/2)：28–37. [3] ABDUL-WAHED M K，AL-HEIB M，SENFAUTE G. Mining induced seismicity：seismic measurement using multiplet[J]. International Journal of Coal Geology，2006，66(1/2)：137–147. [4] DRIAD-LEBEAUA L，LAHAIEA F，AL HEIBA M. Seismic and geotechnical investigations following a rockburst in a complex French mining district[J]. International Journal of Coal Geology，2005，64(1/2)：66–78. [5] MANSUROV V A. Prediction of rockbursts by analysis of induced seismicity data[J]. International Journal of Rock Mechanics and Mining Sciences，2001，38(6)：893–901. [6] LESNIAK A，ISAKOW Z. Space-time clustering of seismic events and hazard assessment in the Zabrze-Bielszowice coal mine，Poland[J]. International Journal of Rock Mechanics and Mining Sciences，2009，46(5)：918–928. [7] COOK N G W，HOEK E，PRETORIUS J P G. Rock mechanics applied to rockbursts[J]. Journal of South African Institute of Mining and Metallurgy，1966，66(2)：436–528. [8] VAN ASWEGANG G. Routine seismic hazard assessment in some South African mines[C]// Proceedings of the Sixth International Symposium on Rockburst and Seismicity in Mines. Nedlands：Australian Centre for Geomechanics，2005：435–444. [9] GE M C，HARDY H R，WANG H L，et al. Development of a simple mechanical impact system as a non-explosive seismic source[J]. Geotechnical and Geological Engineering，2011，29(1)：137–142. [10] 唐礼忠，杨承祥，潘长良. 大规模深井开采微震监测系统站网布置优化[J]. 岩石力学与工程学报，2006，25(10)：2 036–2 042.(TANG Lizhong，YANG Chengxiang，PAN Changliang. Optimization of microseismic monitoring network for large-scale deep well mining[J]. Chinese Journal of Rock Mechanics and Engineering，2006，25(10)：2 036–2 042.(in Chinese)) [11] SENATORSKI P. Apparent stress scaling for tectonic and induced seismicity：model and observations[J]. Physics of the Earth and Planetary Interiors，2008，167(1/2)：98–109. [12] AMIDZIC D. Energy-moment relation and its application[C]// Proceedings of the Sixth International Symposium on Rockburst and Seismicity in Mines. Nedlands：Australian Centre for Geomechanics，2005：509–513. [13] FUNK C，VAN ASWEGAN G，BROWN B. Visualisation of seismicity[C]// Proceedings of the 4th International Symposium on Rockbursts and Seismicity in Mines. Rotterdam：A. A. Balkema，1997：81–87. [14] 李庶林，尹贤刚，郑文达，等. 凡口铅锌矿多通道微震监测系统及其应用研究[J]. 岩石力学与工程学报，2005，24(12)：2 048–2 053. (LI Shulin，YIN Xiangang，ZHENG Wenda，et al. Research of multichannel microseismic monitoring system and its application to Fankou Lead-zinc mine[J]. Chinese Journal of Rock Mechanics and Engineering，2005，24(12)：2 048–2 053.(in Chinese)) [15] 赵兴东，唐春安，李元辉，等. 基于微震监测及应力场分析的冲击地压预测方法[J]. 岩石力学与工程学报，2005，24(增1)：4 745–4 749. (ZHAO Xingdong，TANG Chun?an，LI Yuanhui，et al. Prediction method of rock burst based on microseismic monitoring and stress field analysis[J]. Chinese Journal of Rock Mechanics and Engineering，2005，24(Supp.1)：4 745–4 749.(in Chinese)) [16] MCCREARY R，MCGAUGHEY J，POTVIN Y，et al. Results from microseismic monitoring，conventional instrumentation，and tomography surveys in the creation and thinning of a burst-prone sill pillar[J]. Pure and Applied Geophysics，1992，139(3/4)：349–373. [17] MILEV A M，SPOTTISWOODE S M，RORKE A J，et al. Seismic monitoring of a simulated rock burst on a wall of an underground tunnel[J]. Journal of the South African Institute of Mining and Metallurgy，2001，101(5)：253–260. [18] THEODORE I U，TRIFU C I. Recent advances in seismic monitoring technology at Canadian mines[J]. Journal of Applied Geophysics，2000，45(4)：225–237. [19] WANG H L，GE M C. Acoustic emission/microseismic source location analysis for a limestone mine exhibiting high horizontal stresses[J]. International Journal of Rock Mechanics and Mining Sciences，2008，45(5)：720–728. [20] GE M C. Efficient mine microseismic monitoring[J]. International Journal of Coal Geology，2005，64(1/2)：44–56. [21] HIRATA A，KAMEOKA Y，HIRANO T. Safety management based on detection of possible rock bursts by AE monitoring during tunnel excavation[J]. Rock Mechanics and Rock Engineering，2007，40(6)：563–576. [22] YANG C X，LUO Z Q，HU G B，et al. Application of a microseismic monitoring system in deep mining[J]. Journal of University of Science and Technology Beijing，2007，14(1)：6–8. [23] 刘超，唐春安，李连崇，等. 基于背景应力场与微震活动性的注浆帷幕突水危险性评价[J]. 岩石力学与工程学报，2009，28(2)：366–372.(LIU Chao，TANG Chun?an，LI Lianchong，et al. Analysis of probability of water inrush from grout curtain based on background stress field and microseismicity[J]. Chinese Journal of Rock Mechanics and Engineering，2009，28(2)：366–372.(in Chinese)) [24] 徐奴文，唐春安，沙椿，等. 锦屏一级水电站左岸边坡微震监测系统及其工程应用[J]. 岩石力学与工程学报，2010，29(5)：915–935.(XU Nuwen，TANG Chun?an，SHA Chun，et al. Microseismic monitoring system establishment and its engineering applications to left bank slope of Jinping I hydropower station[J]. Chinese Journal of Rock Mechanics and Engineering，2010，29(5)：915–935.(in Chinese)) [25] 田玥，陈晓非. 地震定位研究综述[J]. 地球物理学进展，2002，17(1)：147–155.(TIAN Yue，CHEN Xiaofei. Review of seismic location study[J]. Progress in Geophysics，2002，17(1)：147–155.(in Chinese)) [26] LIENERT B R，BERG E，FRAZER L N. Hypocenter：an earthquake location method using centered，scaled，and adaptively damped least squares[J]. Bulletin of the Seismological Society of America，1986，76(3)：771–783. [27] NELSON G D，VIDALE J E. Earthquake locations by 3D finite difference travel times[J]. Bulletin of the Seismological Society of America，1990，80(2)：395–410. [28] PUJOL J. Comments on the joint determination of hypocenter and station corrections[J]. Bulletin of the Seismological Society of America，1988，78(3)：1 179–1 189. [29] PUJOL J. Joint event location—the JHD technique and applications to data from local seismic networks[C]// THURBER C，RABINOWITZ N ed. Advances in Seismic Event Location. [S.l.]：Kluwer Academic Publishers，2000：163–204. [30] CROSSON R S. Crustal structure modeling of earthquake data，1，Simultameous least squares estimation of hypocenter and velocity parameters[J]. Journal of Geophysical Research，1976，81(17)：3 036– 3 046. [31] AKI K，LEE W H K. Determination of three-dimensional velocity anomalies under a seismic array using first P arrival times from local earthquakes，part 1：a homogeneous initial model[J]. Journal of Geophysical Research，1976，81(23)：4 381–4 399. [32] AKI K. Determination of the three-dimensional seismic structure of the lothosphere[J]. Journal of Geophysical Research，1977，82(2)：277–296. [33] PAVLIS G，BOOKER J R. The mixed discrete-continuous inverse problem：application of the simultaneous determination of earthquake hypocenters and velocity structure[J]. Journal of Geophysical Research，1980，85(9)：4 801–4 810. [34] SPENCER C，GUBBINS D. Travel-time inversion for simultaneous earthquake location and velocity structure determination in laterally varying media[J]. Geophysical Journal of the Royal Astronomical Society，1980，63(1)：95–116. [35] SPENCE W. Relative epicenter determination using P-wave arrival- time differences[J]. Bulletin of the Seismological Society of America，1980，70(1)：171–183. [36] LOMNITZE C. A fast epicenter location program[J]. Bulletin of the Seismological Society of America，1977，67(2)：425–431. [37] CARZA T，LOMNITZ C，DE VELASCO C R. An interactive epicenter location procedure for the RESMAC seismic array II[J]. Bulletin of the Seismological Society of America，1979，69(4)：1 215–1 236. [38] ROMNEY C. Seismic waves from the Dixie Valley Fairview Peak earthquakes[J]. Bulletin of the Seismological Society of America，1957，47(4)：301–319. [39] TARANTOLA A，VALETTE B. Inverse problem=quest for information[J]. Journal of Geophysics，1982，50(2)：159–170. [40] MATSU?URA M. Bayesian estimation of hypocenter with origin time eliminated[J]. Journal of Physics of the Earth，1984，32(6)：469–483. [41] LI X B，DONG L J. Comparison of two methods in acoustic emission source location using four sensors without measuring sonic speed[J]. Sensor Letters，2011，9(5)：1 501–1 505.