深部煤矿强矿震震源参数分析及震源机制研究

doi:10.13722/j.cnki.jrme.2022.1213

Abstract
Figure/Table
References (0)
Related Citation (15)

Download: PDF (1369 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract As the coal resource exploitation gradually goes deeper，large-energy mine tremors occur frequently in several mines in Shandong and Inner Mongolia，which seriously restrict the productivity and effectiveness of mining activities. The focal mechanism analysis of seisms is the precondition for early warning and prevention and control of strong mine tremors induced by coal seam extraction. This paper provides an in-depth analysis of 27 strong mine tremors that occurred during the mining process of panel 63upper06 in Dongtan coal mine. The fast Fourier transform (FFT) method is employed to process the seismic waveforms of strong mine tremors by using field monitoring and theoretical analysis. The corner frequency and low-frequency displacement amplitude are obtained by fitting the Savage source spectrum model. The internal relationship between the source parameters of strong mine tremors is analysed，as well as the scale and occurrence of source rupture are calculated effectively. Based on the moment tensor inversion and occurrence of source rupture，the focal mechanism solutions of strong mine tremors are determined in Dongtan coal mine. The results show that the focal mechanism of these strong mine tremors is dominated by shear failure，followed by mixed shear failure. The overlying thick and hard rock strata above the coal seam are fractured and faulted along the advancing direction of the working face and the transverse direction of the adjacent goaf，respectively. We believe the two forming types of strong seisms cross each other and promote each other. The violent movement and instantaneous fracture of the overlying thick and hard rock strata caused by coal seam mining are the main reason for the frequent occurrence of strong mine seismic events.

Key words： mining engineering deep mines strong mine tremor focal mechanism source parameter moment tensor inversion P-T projection

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	WU Kunbo
	ZOU Junpeng
	JIAO Yuyong
	HU Xiaoyue

Cite this article:

WU Kunbo,ZOU Junpeng,JIAO Yuyong, et al. Study on the internal relationship of source parameters and focal mechanism of strong mine tremors in deep coal mines[J]. , 2023, 42(10): 2540-2551.

URL:

https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2022.1213 OR https://rockmech.whrsm.ac.cn/EN/Y2023/V42/I10/2540

[1]	袁亮. 我国深部煤与瓦斯共采战略思考[J]. 煤炭学报，2016，41(1)：1-6.(YUAN Liang. Strategic thinking of simultaneous exploitation of coal and gas in deep mining[J]. Journal of China Coal Society，2016，41(1)：1-6.(in Chinese))
[2]	何满潮，谢和平，彭苏萍，等. 深部开采岩体力学研究[J]. 岩石力学与工程学报，2005，24(16)：2 803-2 813.(HE Manchao，XIE Heping，PENG Suping，et al. Study on rock mechanics in deep mining engineering[J]. Chinese Journal of Rock Mechanics and Engineering，2005，24(16)：2 803-2 813.(in Chinese))
[3]	袁亮. 深部采动响应与灾害防控研究进展[J]. 煤炭学报，2021，46(3)：716-725.(YUAN Liang. Research progress of mining response and disaster prevention and control in deep coal mines[J]. Journal of China Coal Society，2021，46(3)：716-725.(in Chinese))
[4]	AKI K，RICHARDS P G. Quantitative seismology[M]. New York：University Science Books，2002：69-92.
[5]	BRUNE J. Tectonic stress and the spectra of seismic shear waves from earthquakes[J]. Journal of Geophysical Research，1970，75(26)：4 997-5 009.
[6]	陈栋，王恩元，李楠. 千秋煤矿微震震源参数特征以及震源机制分析[J]. 煤炭学报，2019，44(7)：2 011-2 019.(CHEN Dong，WANG Enyuan，LI Nan. Analysis of microseismic source parameters and focal mechanism in Qianqiu Coal Mine[J]. Journal of China Coal Society，2019，44(7)：2 011-2 019.(in Chinese))
[7]	SATO R. Theoretical basis on relationships between focal parameters and earthquake magnitude[J]. Journal of Physics of the Earth，1979，27(5)：353-372.
[8]	BONILLA M，MARK R，LIENKAEMPER J. Statistical relations among earthquake magnitude，surface rupture length，and surface fault displacement[J]. Bulletin of the Seismological Society of America，1984，74(6)：2 379-2 411.
[9]	WELLS B，COPPERSMITH K. New empirical relationships among magnitude，rupture length，rupture width，rupture area，and surface displacement[J]. Bulletin of the Seismological Society of America，1994，84(4)：974-1 002.
[10]	沈建文，邱瑛，赵志贺. 震级-破裂长度关系与断层破裂模型[J]. 地球物理学报，1990，33(2)：242-248.(SHEN Jianwen，QIU Ying，ZHAO Zhihe. Rupture length magnitude relationship and fault-rupture model[J]. Acta Geophysica Sinica，1990，33(2)：242-248.(in Chinese))
[11]	KNOPOFF L，RANDALL M. The compensated linear-vector dipole: a possible mechanism for deep earthquakes[J]. Journal of Geophysical Research，1970，75(26)：4 957-4 963.
[12]	VAVRY?UK V. Moment tensor decompositions revisited[J]. Journal of Seismology，2015，19(1)：231-252.
[13]	李庶林，林恺帆，周梦婧，等. 基于矩张量分析的特大山体破坏前兆孕震机制研究[J]. 岩石力学与工程学报，2019，38(10)：2 000-2 009.(LI Shulin，LIN Kaifan，ZHOU Mengjing，et al. Study on mechanism seismogenic process of failure precursors of large landsliding based on moment tensor analysis[J]. Chinese Journal of Rock Mechanics and Engineering，2019，38(10)：2 000-2 009.(in Chinese))
[14]	ZHAO Y，YANG T，ZHANG P，et al. Inversion of seepage channels based on mining-induced microseismic data[J]. International Journal of Rock Mechanics and Mining Sciences，2020，126：104180.
[15]	GILBERT F. Excitation of the normal modes of the earth by earthquake sources[J]. Geophysical Journal Royal Astronomical Society，1971，22(2)：223-226.
[16]	唐礼忠，翦英骅，李地元，等. 基于微震矩张量的矿山围岩破坏机制分析[J]. 岩土力学，2017，38(5)：1 436-1 444.(TANG Lizhong，JIAN Yinghua，LI Diyuan，et al. Analysis of damage mechanism for surrounding rock based on microseismic moment tensor[J]. Rock and Soil Mechanics，2017，38(5)：1 436-1 444.(in Chinese))
[17]	刘胤池，李庶林，唐超. 岩体破裂震源机制解类型判据的改进及应用研究[J]. 岩土力学，2021，42(5)：1 335-1 344.(LIU Yinchi，LI Shulin，TANG Chao. Improvement and application of focal mechanism solution type criterion for rock mass fracture[J]. Rock and Soil Mechanics，2021，42(5)：1 335-1 344.(in Chinese))
[18]	LINZER L，MHAMDI L，SCHUMACHER T. Application of a moment tensor inversion code developed for mining-induced seismicity to fracture monitoring of civil engineering materials[J]. Journal of Applied Geophysics，2015，112：256-267.
[19]	OHTSU M. Acoustic emission theory for moment tensor analysis[J]. Research in Nondestructive Evaluation，1995，6(3)：169-184.
[20]	YOUNG R，MAXWELL S，URBANCIC T，et al. Mining-induced microseismicity：Monitoring and applications of imaging and source mechanism techniques[J]. Pure and Applied Geophysics，1992，139(3)：697-719.
[21]	ALLEN T，CUMMINS P，DHU T，et al. Attenuation of ground-motion spectral amplitudes in southeastern Australia[J]. Bulletin of the Seismological Society of America，2007，97(4)：1 279-1 292.
[22]	MADARIAGA R. Dynamics of an expanding circular fault[J]. Bulletin of the Seismological Society of America，1976，66(3)：639-666.
[23]	LI Y，CHEN X. Variations in apparent stress and b value preceding the 2010 M w 8.8 Bio-Bío，Chile Earthquake[J]. Pure and Applied Geophysics，2021，178：4 797-4 813.
[24]	宋金，陈运泰，张勇. 2013年岷漳地震和2014年景谷地震的能矩比对比研究[J]. 地球物理学报，2020，63(9)：3 324-3 337. (SONG Jin，CHEN Yuntai，ZHANG Yong. Comparative study on the energy-moment ratio between the 2013 Minzhang earthquake and the 2014 Jinggu earthquake[J]. Chinese Journal of Geophysics，2020，63(9)：3 324-3 337.(in Chinese))
[25]	VAVRY?UK V. Inversion for parameters of tensile earthquakes[J]. Journal of Geophysical Research：Solid Earth，2001，106(B8)：16 339-16 355.
[26]	钱鸣高，许家林. 煤炭开采与岩层运动[J]. 煤炭学报，2019，44(4)：973-984.(QIAN Minggao，XU Jialin. Behaviors of strata movement in coal mining[J]. Journal of China Coal Society，2019，44(4)：973-984.(in Chinese))
[27]	张杰，王斌，白文勇，等. 浅埋近距间隔式采空区顶板“双拱桥”结构稳定性研究[J]. 中国矿业大学学报，2021，50(3)：598-605.(ZHANG Jie，WANG Bin，BAI Wenyong，et al. Stability study of the double-arch structure formed by short-distance discontinuous mining in shallow strata[J]. Journal of China University of Mining and Technology，2021，50(3)：598-605.(in Chinese))
[28]	窦林名，贺虎. 煤矿覆岩空间结构OX-F-T演化规律研究[J]. 岩石力学与工程学报，2012，31(3)：453-460.(DOU Linming，HE Hu. Study of OX-F-T spatial structure evolution of overlying strata in coal mines[J]. Chinese Journal of Rock Mechanics and Engineering，2012，31(3)：453-460.(in Chinese))
[29]	王志强，武超，罗健侨，等. 特厚煤层巨厚顶板分层综采工作面区段煤柱失稳机制及控制[J]. 煤炭学报，2021，46(12)：3 756-3 770. (WANG Zhiqiang，WU Chao，LUO Jianqiao，et al. Instability mechanism and control of section coal pillar in fully mechanized mining face with super thick roof and extra thick seam[J]. Journal of China Coal Society，2021，46(12)：3 756-3 770.(in Chinese))
[30]	贺虎，窦林名，巩思园，等. 覆岩关键层运动诱发冲击的规律研究[J]. 岩土工程学报，2010，32(8)：1 260-1 265.(HE Hu，DOU Linming，GONG Siyuan，et al. Rock burst rules induced by cracking of overlying key stratum[J]. Chinese Journal of Geotechnical Engineering，2010，32(8)：1 260-1 265.(in Chinese))
[31]	王树立，张开智，蒋金泉，等. 超厚高位红层砂岩破断运动与矿震活动规律[J]. 采矿与安全工程学报，2016，33(6)：1 116-1 122. (WANG Shuli，ZHANG Kaizhi，JIANG Jinquan，et al. The fracture and rockburst laws of high-position hard and extremely thick red beds[J]. Journal of Mining and Safety Engineering，2016，33(6)：1 116-1 122. (in Chinese))
[32]	LIU C，LI H M，MITRI H. Effect of strata conditions on shield pressure and surface subsidence at a longwall top coal caving working face[J]. Rock Mechanics and Rock Engineering，2019，52：1 523-1 537.
[33]	鞠金峰，许家林，王庆雄. 大采高采场关键层“悬臂梁”结构运动型式及对矿压的影响[J]. 煤炭学报，2011，36(12)：2 115-2 120.(JU Jinfeng，XU Jialin，WANG Qingxiong. Cantilever structure moving type of key strata and its influence on ground pressure in large mining height workface[J]. Journal of China Coal Society，2011，36(12)：2 115-2 120.(in Chinese))
[34]	魏东，贺虎，秦原峰，等. 相邻采空区关键层失稳诱发矿震机制研究[J]. 煤炭学报，2010，35(12)：1 957-1 962.(WEI Dong，HE Hu，QIN Yuanfeng，et al. Study on mechanism of mining tremor induced by key strata instability in the gob beside the working face[J]. Journal of China Coal Society，2010，35(12)：1 957-1 962.(in Chinese))