充分采动阶段覆岩多层空间结构支承压力研究
|
摘要
将采场上方直至地表的岩层视为采场上方的覆岩空间结构,基于微地震定位监测,圈定采场覆岩多层空间结构的范围,研究覆岩空间结构岩层运动发展规律,建立覆岩空间结构走向支承压力模型;利用力学方法,得到走向支承压力计算公式;利用上述计算方法,研究了新汶矿业集团华丰煤矿1410工作面走向超前支承压力分布规律,并与现场微地震监测结果进行了对比分析.研究表明:上述方法适用于深部采场岩层运动范围扩展后的充分采动阶段采场走向支承压力的估算和预测.
The multilayer spatial structures of the overlying strata were regarded as from stope face to the surface and their areas were located by microseismic monitoring,their movement rules were studied and their calculation models of abutment pressure were set up,and proposed the calculation formulaes of dynamic abutment pressure based on the elasticity theory.By using this method,the abutment pressure of Huafeng Coal Mine was studied and the calculation results were compared to the results of field microseismic monitoring.Field experiments in Huafeng Coal Mine show clearly that this method is useful for the prediction of abutment pressure.
The multilayer spatial structures of the overlying strata were regarded as from stope face to the surface and their areas were located by microseismic monitoring,their movement rules were studied and their calculation models of abutment pressure were set up,and proposed the calculation formulaes of dynamic abutment pressure based on the elasticity theory.By using this method,the abutment pressure of Huafeng Coal Mine was studied and the calculation results were compared to the results of field microseismic monitoring.Field experiments in Huafeng Coal Mine show clearly that this method is useful for the prediction of abutment pressure.
引文
[1]宋振骐,卢国志,夏洪春.一种计算采场支承压力分布的新算法[J].山东科技大学学报,2006,25(3):1-4.Song Zhenqi,Lu Guozhi,Xia Hongchun.Anewalgorithm for calculating the distribution of face abutment pressure[J].Jour-nal of Shandong University of Science and Technology,2006,25(3):1-4.
[2]浦海,缪协兴.采动覆岩中关键层运动对围岩支承压力分布的影响[J].岩石力学与工程学报,2002,21(S2):2 366-2 369.Pu Hai,Miao Xiexing.Effect of the key strata movement in the mining-induced overlying strata on the abutment pressure distri-bution in surrounding rock[J].Chinese Journal of Rock Mechanics and Engineering,2002,21(S2):2 366-2 369.
[3]谢广祥,杨科,刘全明.综放面倾向煤柱支承压力分布规律研究[J].岩石力学与工程学报,2006,25(3):545-549.Xie Guangxiang,Yang Ke,Liu Quanming.Study on distribution laws of stress in inclined coal pillar for fully-mechanized top-coal caving face[J].Chinese Journal of Rock Mechanics and Engineering,2006,25(3):545-549.
[4]姜福兴,马其华.深部长壁工作面动态支承压力极值点的求解[J].煤炭学报,2002,27(3):273-275.Jiang Fuxing,Ma Qihua.Mechanical solution of the maximum point of dynamic abutment pressure under deep long-wall work-ing face[J].Journal of China Coal Society,2002,27(3):273-275.
[5]李洪,代进.支承压力的弹性基础梁解算初探[J].矿山压力与顶板管理,2005,22(2):4-6.Li Hong,Dai Jin.The analysis of abutment based on the elastic beam[J].Ground Pressure and Strata Control,2005,22(2):4-6.
[6]姜福兴,张兴民,杨淑华,等.长壁采场覆岩空间结构探讨[J].岩石力学与工程学报,2006,25(5):979-984.Jiang Fuxing,Zhang Xingmin,Yang Shuhua,et al.Research on overlying strata spatial structures of longwall in coal mine[J].Chinese Journal of Rock Mechanics and Engineering,2006,25(5):979-984.
[7]成云海,姜福兴,张兴民,等.微震监测揭示的“C”型采场空间结构及应力场[J].岩石力学与工程学报,2007,26(1):102-107.Cheng Yunhai,Jiang Fuxing,Zhang Xingmin,et al.C-shaped strata spatial structure and stress field in long wall face moni-tored by microseismic monitoring[J].Chinese Journal of Rock Mechanics and Engineering,2007,26(1):102-107.
[8]成云海,姜福兴,程久龙,等.关键层运动诱发矿震的微震探测初步研究[J].煤炭学报,2006,31(3):273-275.Cheng Yunhai,Jiang Fuxing,Cheng Jiulong,et al.The primary study on microseismic locating and monitoring technology ofshock bump caused by key stratum movement[J].Journal of China Coal Society,2006,31(3):273-275.
[9]史红,姜福兴.基于微地震监测的覆岩多层空间结构倾向支承压力研究[J].岩石力学与工程学报,2008,27(S1):3 274-3 280.Shi Hong,Jiang Fuxing.Study on abutment pressure rule of overlying strata spatial structures based on microseismic monitoring[J].Chinese Journal of Rock Mechanics and Engineering,2008,27(S1):3 274-3 280.
[10]姜福兴,杨淑华,成云海,等.煤矿冲击地压的微地震监测研究[J].地球物理学报,2006,49(5):1 511-1 516.Jiang Fuxing,Yang Shuhua,Cheng Yunhai,et al.Astudy on microseismic monitoring of rock burst in coal mine[J].Chi-nese Journal of Geophysics,2006,49(5):1 511-1 516.
[2]浦海,缪协兴.采动覆岩中关键层运动对围岩支承压力分布的影响[J].岩石力学与工程学报,2002,21(S2):2 366-2 369.Pu Hai,Miao Xiexing.Effect of the key strata movement in the mining-induced overlying strata on the abutment pressure distri-bution in surrounding rock[J].Chinese Journal of Rock Mechanics and Engineering,2002,21(S2):2 366-2 369.
[3]谢广祥,杨科,刘全明.综放面倾向煤柱支承压力分布规律研究[J].岩石力学与工程学报,2006,25(3):545-549.Xie Guangxiang,Yang Ke,Liu Quanming.Study on distribution laws of stress in inclined coal pillar for fully-mechanized top-coal caving face[J].Chinese Journal of Rock Mechanics and Engineering,2006,25(3):545-549.
[4]姜福兴,马其华.深部长壁工作面动态支承压力极值点的求解[J].煤炭学报,2002,27(3):273-275.Jiang Fuxing,Ma Qihua.Mechanical solution of the maximum point of dynamic abutment pressure under deep long-wall work-ing face[J].Journal of China Coal Society,2002,27(3):273-275.
[5]李洪,代进.支承压力的弹性基础梁解算初探[J].矿山压力与顶板管理,2005,22(2):4-6.Li Hong,Dai Jin.The analysis of abutment based on the elastic beam[J].Ground Pressure and Strata Control,2005,22(2):4-6.
[6]姜福兴,张兴民,杨淑华,等.长壁采场覆岩空间结构探讨[J].岩石力学与工程学报,2006,25(5):979-984.Jiang Fuxing,Zhang Xingmin,Yang Shuhua,et al.Research on overlying strata spatial structures of longwall in coal mine[J].Chinese Journal of Rock Mechanics and Engineering,2006,25(5):979-984.
[7]成云海,姜福兴,张兴民,等.微震监测揭示的“C”型采场空间结构及应力场[J].岩石力学与工程学报,2007,26(1):102-107.Cheng Yunhai,Jiang Fuxing,Zhang Xingmin,et al.C-shaped strata spatial structure and stress field in long wall face moni-tored by microseismic monitoring[J].Chinese Journal of Rock Mechanics and Engineering,2007,26(1):102-107.
[8]成云海,姜福兴,程久龙,等.关键层运动诱发矿震的微震探测初步研究[J].煤炭学报,2006,31(3):273-275.Cheng Yunhai,Jiang Fuxing,Cheng Jiulong,et al.The primary study on microseismic locating and monitoring technology ofshock bump caused by key stratum movement[J].Journal of China Coal Society,2006,31(3):273-275.
[9]史红,姜福兴.基于微地震监测的覆岩多层空间结构倾向支承压力研究[J].岩石力学与工程学报,2008,27(S1):3 274-3 280.Shi Hong,Jiang Fuxing.Study on abutment pressure rule of overlying strata spatial structures based on microseismic monitoring[J].Chinese Journal of Rock Mechanics and Engineering,2008,27(S1):3 274-3 280.
[10]姜福兴,杨淑华,成云海,等.煤矿冲击地压的微地震监测研究[J].地球物理学报,2006,49(5):1 511-1 516.Jiang Fuxing,Yang Shuhua,Cheng Yunhai,et al.Astudy on microseismic monitoring of rock burst in coal mine[J].Chi-nese Journal of Geophysics,2006,49(5):1 511-1 516.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心