YANG Yao，CAO Anye，BAI Xianxi，et al. Occurrence mechanism of strong mining tremors under mining near goaf in deep mine with extremely thick strata[J]. Coal Science and Technology，2023，51（12）：220−231
. DOI: 10.13199/j.cnki.cst.2022-2156| Citation: |
YANG Yao，CAO Anye，BAI Xianxi，et al. Occurrence mechanism of strong mining tremors under mining near goaf in deep mine with extremely thick strata[J]. Coal Science and Technology，2023，51（12）：220−231 . DOI: 10.13199/j.cnki.cst.2022-2156
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Mining tremors is an inevitable dynamic phenomenon in deep mine mining, in view of the current situation that strong mining tremors occurs frequently in the Erdos mining area under mining near goaf in deep mine with extremely thick strata, we used techniques such as ground detection holes and surface stratum movement monitoring, combined with Reissner Thick Plate Theory and the relative moment tensor inversion method, to study the characteristics of strata rupture transport and the evolution of rupture-induced mining tremors source rupture pattern at the working face, and revealed the occurrence mechanism of strong mine tremor in deep coal with the Cretaceous extremely thick strata under goaf mining. The results show that: during the in the retreating period with no goaf nearby, extremely thick strata has no obvious fissures and the surface settlement is stable, with a maximum settlement of about 0.23 m; during the In the retreating period along with goaf, the fissures develop to a maximum height of 444.8 m above the coal seam in the extremely thick strata, and the surface always reaches the maximum settlement at the source of the mining tremor first, and the maximum settlement of the surface increases rapidly before the strong mining tremor occurs, which is more than 60% higher than the recent one. This indicates that the fracturing and movement of the extremely thick strata was the source of the strong mining tremor and that the instability of the extremely thick strata caused the surface to settle rapidly again as a result of the disturbance of the strong mining tremor. The initial fracturing step of the extremely thick strata is 331.82 m, which is consistent with the actual advance of the working face, and supports that the strong mining tremor was induced by the initial fracture of the extremely thick strata; the initial fracturing step increases gradually with the increase of the thickness of the extremely thick strata; the initial fracturing step increases linearly with the increase of the working face length, and the initial fracture of the extremely thick strata transforms from horizontal “O-X” shape to vertical “O-X” shape. The bottom-up rupture of the rock layer induced by the bottom-up rupture of the mining tremors source changed from compressional and shear rupture to compressional and tensional rupture; with the further increase of the mining area of the working face, the fissure extended to the extremely thick strata, and the tensional rupture of the unstable extremely thick strata was the root cause of the “8•20” strong mining tremor. The findings of the study can provide references for the prevention and control of strong mining tremors under mining near goaf in deep mine with extremely thick strata.
| [1] |
KANG J Q,ZHU J B,ZHAO J. A review of mechanisms of induced earthquakes:from a view of rock mechanics[J]. Geomechanics and Geophysics for Geo-Energy and Geo-Resources,2019,5(2):171−196. doi: 10.1007/s40948-018-00102-z
|
| [2] |
窦林名,曹晋荣,曹安业,等. 煤矿矿震类型及震动波传播规律研究[J]. 煤炭科学技术,2021,49(6):23−31.
DOU Linming,CAO Jinrong,CAO Anye, et al. Research on types of coal mine tremor and propagation law of shock waves[J]. Coal Science and Technology,2021,49(6):23−31.
|
| [3] |
WU K B,ZOU J P,JIAO Y Y, et al. Focal Mechanism of Strong Ground Seismicity Induced by Deep Coal Mining[J]. Rock Mechanics and Rock Engineering,2023,56(1):779−795. doi: 10.1007/s00603-022-03079-0
|
| [4] |
曹安业,陈 凡,刘耀琪,等. 冲击地压频发区矿震破裂机制与震源参量响应规律[J]. 煤炭学报,2022,47(2):722−733.
CAO Anye,CHEN Fan,LIU Yaoqi, et al. Response characteristics of rupture mechanism and source parameters of mining tremors in frequent coal burst area[J]. Journal of China Coal Society,2022,47(2):722−733.
|
| [5] |
朱建波,马斌文,谢和平,等. 煤矿矿震与冲击地压的区别与联系及矿震扰动诱冲初探[J]. 煤炭学报,2022,47(9):3396−3409.
ZHU Jianbo,MA Binwen,XIE Heping, et al. The differences and connections between mining seismicity and coal bursts incoal mines and preliminary study on coal bursts induced by mining seismicity[J]. Journal of China Coal Society,2022,47(9):3396−3409.
|
| [6] |
曹安业,朱亮亮,李付臣,等. 厚硬岩层下孤岛工作面开采“T”型覆岩结构与动压演化特征[J]. 煤炭学报,2014,39(2):328−335.
CAO Anye,ZHU Liangliang,LI Fuchen,Characteristics of T-type overburden structure and tremor activity in isolated face mining under thick-hard strata[J]. Journal of China Coal Society,2014,39(2):328−335.
|
| [7] |
白贤栖,曹安业,杨 耀,等. 高位巨厚覆岩运移规律及矿震触发机制研究[J]. 煤炭科学技术,2023,51(3):10−20.
BAI Xianxi,CAO Anye,YANG Yao, et al. Study on movement law of extremely thick strata and triggering mechanism of mine earthquakes[J]. Coal Science and Technology,2023,51(3):10−20.
|
| [8] |
朱斯陶,刘金海,姜福兴,等. 我国煤矿顶板运动型矿震及诱发灾害分类、预测与防控[J]. 煤炭学报,2022,47(2):807−816.
ZHU Sitao,LIU Jinhai,JIANG Fuxing, et al. Clsaaification,prediction,prevention and control of roof movement-type mine earthquakes and induced disasters in China’s coal mines[J]. Journal of China Coal Society,2022,47(2):807−816.
|
| [9] |
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):1116−1122.
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 & Safety Engineering,2016,33(6):1116−1122.
|
| [10] |
XU C,FU Q,CUI X, et al. Apparent-depth effects of the dynamic failure of thick hard rock strata on the underlying coal mass during underground mining[J]. Rock Mechanics and Rock Engineering,2019,52(5):1565−1576. doi: 10.1007/s00603-018-1662-3
|
| [11] |
赵 科,张开智,王树立. 巨厚覆岩破断运动与矿震活动规律研究[J]. 煤炭科学技术,2016,44(2):118−122.
ZHAO Ke,ZHANG Kaizhi,WANG Shuli. Study on movement law of ultra thick overlying strata broken and coal mine earthquakes[J]. Coal Science and Technology,2016,44(2):118−122.
|
| [12] |
王桂峰,窦林名,李振雷,等. 冲击矿压空间孕育机制及其微震特征分析[J]. 采矿与安全工程学报,2014,31(1):41−48.
WANG Guifeng,DOU Linming,LI Zhenlei, et al. Space breeding mechanism of rock burst and its microseismic characteristics[J]. Journal of Mining & Safety Engineering,2014,31(1):41−48.
|
| [13] |
李 铁,孙学会,吕毓国,等. 强矿震临界破裂阶段的岩体弹性波场[J]. 煤炭学报,2011,36(5):747−751.
LI Tie,SUN Xuehui,LYU Yuguo, et al. Rockmass elastic-wave field at the critical unstable failure stage of strong mining-induced seismicity[J]. Journal of China Coal Society,2011,36(5):747−751.
|
| [14] |
张月征,王 涛,纪洪广,等. 基于区域应变效应的冲击地压孕育及预警机制[J]. 采矿与安全工程学报,2018,35(5):1022−1029.
ZHANG Yuezheng,WANG Tao,JI Hongguang, et al. Study on the gestation and warning mechanism of rock burst based on the regional strain effect[J]. Journal of Mining & Safety Engineering,2018,35(5):1022−1029.
|
| [15] |
XUE R,LIANG Z,XU N,et al. Rockburst prediction and stability analysis of the access tunnel in the main powerhouse of a hydropower station based on microseismic monitoring[J]. International Journal of Rock Mechanics and Mining Sciences,2020,126.
|
| [16] |
薄景山,李秀领,刘红帅. 土层结构对地表加速度峰值的影响[J]. 地震工程与工程振动,2003,23(3):35−40. doi: 10.13197/j.eeev.2003.03.006
BO Jingshan,LI Xiuling,LIU Hongshuai. Effects of soil layer construction on peak accelerations of ground motions[J]. Earthqueke Engnineering and Engnineering Vibration,2003,23(3):35−40. doi: 10.13197/j.eeev.2003.03.006
|
| [17] |
钱鸣高,许家林,王家臣,等. 矿山压力与岩层控制[M]. 徐州:中国矿业大学出版社,2020:82−86.
QIAN Minggao,XU Jialin,WANG Jiacheng,et al. Mine pressure and strata control [M]. Xuzhou:China University of Mining and Technology Press,2020:82−86.
|
| [18] |
龙述尧,姜 琛. 中厚板理论的适用范围和精确程度的研究[J]. 湖南大学学报(自然科学版),2012,39(1):37−41.
LONG Shuyao,JIANG Chen. Research on the applicable range and accuracy of moderately thick plate theory[J]. Journal of Hunan University (Natural Sciences),2012,39(1):37−41.
|
| [19] |
REISSNER E. The effect of transverse shear deformation on the bending of elastic plates[J]. Journal of Applied Mechanics,1945,12(2):69−77. doi: 10.1115/1.4009435
|
| [20] |
杨胜利,王家臣,李良晖. 基于中厚板理论的关键岩层变形及破断特征研究[J]. 煤炭学报,2020,45(8):2718−2727.
YANG Shengli,WANG Jiachen,LI Lianghui, et al. Deformation and fracture characteristics of key strata based on the medium thick plate theory[J]. Journal of China Coal Society,2020,45(8):2718−2727.
|
| [21] |
夏彬伟,李晓龙,卢义玉,等. 大同矿区坚硬顶板破断步距及变形规律研究[J]. 采矿与安全工程学报,2016,33(6):1038−1044.
XIA Binwei,LI Xiaolong,LU Yiyu, et al. Study on the breaking span and deformation of hard roof in Datong mining area[J]. Journal of Mining & Safety Engineering,2016,33(6):1038−1044.
|
| [22] |
CAO A Y,LIU Y Q,CHEN F, et al. Focal mechanism and source parameters analysis of mining-induced earthquakes based on relative moment tensor inversion[J]. International Journal of Environmental Research and Public Health,2022,19(12):7352. doi: 10.3390/ijerph19127352
|
| [23] |
OHTSU M. Acoustic emission theory for moment tensor analysis[J]. Research in Nondestructive Evaluation,1995,6(3):169−184. doi: 10.1080/09349849509409555
|
| [24] |
陈 凡. 煤矿矿震破裂机制及其震源力学参量响应规律研究[D]. 徐州:中国矿业大学,2019:41−42.
CHEN Fan. Failure mechanism of mining induced tremor and response law of its source mechanics parameters[D]. Xuzhou:China University of Mining & Technology,2019:41−42.
|
| [25] |
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. doi: 10.1016/j.ijrmms.2019.104180
|
| [26] |
曹安业. 采动煤岩冲击破裂的震动效应及其应用研究[D]. 徐州:中国矿业大学,2009:136−139.
CAO Anye. Research on seismic effort of burst and failure of coal-rock mass associated with mining and its application[D]. Xuzhou:China University of Mining & Technology,2009:136−139.
|
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