基于相似材料试验特厚煤层分层开采对断层影响研究
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摘要
为了研究某矿特厚煤层分层开采对断层的影响,根据煤层实际情况,采用相似材料模拟试验的方法,研究了特厚煤层分层开采下断层的发育规律。结果表明:F18和F16受开采影响大,破坏严重,F1断层距离煤层较远,相对受扰动较轻;因工作面推进方向和断层倾斜方向一致,致使各断层上方的移动变形大于下方的移动变形,使得F1上盘含水层的水容易通过采动裂隙导入工作面;断层F18与工作面侧岩层交汇面的移动数值最大,开采拟3工作面时被采动裂隙贯通地表;重复采动57002工作面时,导水断裂带将会导通地表。
In order to study the coal mining thick coal seam layering mining influence on fault,according to the actual situation of coal seam,using the methods of similar material simulation experiment,the development regularity of the fault influenced by the special thick coal seam layering mining.The results show that F18 and F16 are greatly affected by mining and seriously damaged.The working face advancing direction is the same with the fault dip direction,causing the fault at the top of the mobile deformation is greater than at the bottom of the movement,makeing F1 in aquifer groundwater easily through mining fissure import face; The movement value of fault F18 at the interface between the rock strata on the working face and the working face is the largest.When the 57002 working face is repeatedly mined,fault development causes similar materials in the water-conducting fracture zone to reach the bottom of the load,indicating that the water-conducting fracture zone may reach the surface.
In order to study the coal mining thick coal seam layering mining influence on fault,according to the actual situation of coal seam,using the methods of similar material simulation experiment,the development regularity of the fault influenced by the special thick coal seam layering mining.The results show that F18 and F16 are greatly affected by mining and seriously damaged.The working face advancing direction is the same with the fault dip direction,causing the fault at the top of the mobile deformation is greater than at the bottom of the movement,makeing F1 in aquifer groundwater easily through mining fissure import face; The movement value of fault F18 at the interface between the rock strata on the working face and the working face is the largest.When the 57002 working face is repeatedly mined,fault development causes similar materials in the water-conducting fracture zone to reach the bottom of the load,indicating that the water-conducting fracture zone may reach the surface.
引文
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[19]王恩营.煤炭开采中小断层研究的几个问题[J].中国矿业,2006,15(8):60-62.WANG Enying. Research on several problems of coal mining in small and medium sized fault[J]. China Mining,2006,15(8):60-62.
[20]刘兴全.断层对煤炭开采的影响因素及处理方法[J].科技创新与应用,2017(23):89-90.LIU Xingquan.Influence factors of fault on coal mining and treatment methods[J]. Science and technology innovation and application,2017(23):89-90.
[2]赵海军,马凤山,李国庆,等.断层上下盘开挖引起岩移的断层效应[J].岩土工程学报,2008,30(9):1372-1375.ZHAO Haijun,MA Fengshan,LI Guoqing,et al.The faulting effect of rock movement caused by the excavation of the upper and lower faults[J]. Chinese Journal of Geotechnical Engineering,2008,30(9):1372-1375.
[3]李志华,窦林名,曹安业,等.采动影响下断层滑移诱发煤岩冲击机理[J].煤炭学报,2011,36(S1):68-73.LI Zhihua,DOU Linming,CAO Anye,et al.Mechanism of coal and rock impact induced by fault slip under mining influence[J].Journal of China Coal Society,2011,36(S1):68-73.
[4]姜耀东,王涛,赵毅鑫,等.采动影响下断层活化规律的数值模拟研究[J].中国矿业大学学报,2013,42(1):1-5.JIANG Yaodong,WANG Tao,ZHAO Yixin,et al. Numerical simulation study of activation law of faults under mining influence[J].Journal of China University of Mining and Technology,2013,42(1):1-5.
[5]张国龙,蒋金泉,张培鹏,等.正断层活化影响下覆岩结构演化规律[J].煤炭技术,2017,36(9):48-51.ZHANG Guolong,JIANG Jinquan,ZHANG Peipeng,et al.Overburden structure evolution under the influence of normal fault activation[J].Coal Technology,2017,36(9):48-51.
[6]朱光丽,张文泉,张贵彬,等.采动诱发断层活化导水试验研究[J].岩土力学,2017,38(11):3163-3172.ZHU Guangli,ZHANG Wenquan,ZHANG Guibin,et al.Pilot study on the activation of induced faults in mining by fault[J].Rock and Soil Mechanics,2017,38(11):3163-3172.
[7] Kratzsch H.Mining bsidence engineering[J].New York:Springer,1983,21(5):8-12.
[8]刘宝琛,廖国华.煤矿地表移动的基本规律[M].北京:中国工业出版社,1965:20-55.
[9]胡戈,李文平,程伟.淮南煤田综放开采导水裂隙带发育规律研究[J].煤炭工程,2008(5):74-76.HU Ge,LI Wenping,CHENG Wei,et al.Study on the development law of water induced fracture zone in fully mechanized caving mining in Huainan coal field[J].Coal Engineering,2008(5):74-76.
[10]胡戈,李文平,刘启蒙,等.综放开采过断层顶板破坏规律数值模拟[J].能源技术与管理,2008(1):1-3.HU Ge,LI Wenping,LIU Qimeng,et al. Numerical simulation of roof failure law of fully mechanized top coal caving mining[J].Energy Technology and Management,2008,(01):1-3.
[11]路军,许家林,王露,等.断层采动活化对导水裂隙带高度影响的模拟实验研究[J].中国煤炭,2012(1):36-40.LU Jun,XU Jialin,WANG Lu,et al.Simulated experimental study on the influence of mining activation on the height of water flowing fractured zone[J].China Coal,2012(1):36-40.
[12]浦海,张柬.断层影响下顶板突水特性的数值模拟研究[J].采矿与安全工程学报,2010,27(3):421-424.PU Hai,ZHANG Jian. Numerical simulation of water bursting characteristics of roof under the influence of faults[J].Journal of Mining and Safety Engineering,2010,27(3):421-424.
[13]甄亚彬,赵玉成,陆丹峰.断层下采场顶板破断规律的研究[J].煤矿安全,2013,41(4):62-64.ZHEN Yabin,ZHAO Yucheng,LU Danfeng. Under the fault of stope roof breaking of[J]. Safety in Coal Mine,2013,41(4):62-64.
[14]左建平,陈忠辉,王怀文,等.深部煤矿采动诱发断层活动规律[J].煤炭学报,2009,34(3):305-309.ZUO Jianping,CHEN Zhonghui,WANG Huaiwen,et al. Laws of mining induced faults in deep coal mines[J]. Journal of China Coal Society,2009,34(3):305-309.
[15]黄炳香,刘长友,许家林.采场小断层对导水裂隙高度的影响[J].煤炭学报,2009,34(10):1316-1321.HUANG Bingxiang,LIU Changyou,XU Jialin. Stope small faults on the height of water flowing fracture effect[J].Journal of China Coal Society,2009,34(10):1316-1321.
[16]雷光伟,杨春和,王贵宾,等.断层影响带的发育规律及其力学成因[J].岩石力学与工程学报,2016,43(2):231-241.LEI Guangwei,YANG Chunhe,WANG Guibin,et al.Development law and mechanical origin of fault zone[J].Journal of Rock Mechanics and Engineering,2016,43(2):231-241.
[17]崔建宁,李晓阳.断层影响下上盘煤层开采相似材料模拟研究[J].内蒙古煤炭经济,2015(8):196-197.CUI Jianning,LI Xiaoyang.Simulation study of similar material in the upper plate coal seam under the influence of fault[J]. Inner Mongolia Coal Economics,2015(8):196-197.
[18]刘江波,王亚博,王怀远,等.大断层下盘采动对上盘煤层影响的相似材料模拟[J].金属矿山,2014,44(1):34-37.LIU Jiangbo,WANG Yabo,WANG Huaiyuan,et al. Similar material simulation of the effect of footwall mining on the upper wall seam[J].Metal Mine,2014,44(1):34-37.
[19]王恩营.煤炭开采中小断层研究的几个问题[J].中国矿业,2006,15(8):60-62.WANG Enying. Research on several problems of coal mining in small and medium sized fault[J]. China Mining,2006,15(8):60-62.
[20]刘兴全.断层对煤炭开采的影响因素及处理方法[J].科技创新与应用,2017(23):89-90.LIU Xingquan.Influence factors of fault on coal mining and treatment methods[J]. Science and technology innovation and application,2017(23):89-90.