复杂结构厚煤层顶煤可放性及综放工艺研究
|
摘要
本文通过现场实测、理论分析和数值模拟研究,对复杂结构厚煤层顶煤可放性及综放工艺研究了系统的论述。通过现场观测,分析了康家滩煤矿88203工作面矿山压力显现的规律及显现特征,为康家滩煤矿8~#煤层综放支架的选型提供了理论依据;在分析煤层强度、开采深度、顶板岩性及厚度、煤层厚度、顶煤中节理、裂隙的发育程度以及煤层的夹矸层数和厚度等主要因素对顶煤冒放性影响的基础上,采用模糊数学方法分别对各个影响因素的冒放性隶属度进行了研究,得到了顶煤冒放性的综合评价指标值。
采用数值模拟软件FLAC~(3D)对综放工作面推进过程中的顶煤冒落情况进行了模拟,采用现场实测研究了项煤及顶板运移特征、项煤(板)宏观冒落特征,模拟及观测结果表明在康家滩煤矿8~#复杂结构厚煤层中进行综放开采是可行的;采用平面和立体相似材料模拟实验方法对放煤步距与方式进行了模拟实验研究,得出了工作面合理的放煤步距为二采一放,合理的放煤方式为单轮顺序放煤。
Top coal caving capability and fully mechanized top coal caving technology were systematic discussion through the field measurement, theoretical analysis and numerical simulation method. Strata behavior law and its characteristics of 88203 working face was analysized, theory basis was provided for the selection of support. Based on the analysis of main factors influencing the top coal caving, such as coal intensity, mining depth, roof lithologic characters and thickness, coal seam thickness, roof fissurings and cracks, coal bed dirt layers and its thickness and so on, the paper studied the caving membership grade of each factor, and concluded the comprehensive evaluation data of top coal caving.
Using FLAC~(3D) numerical simulation, this paper simulated top coal caving during the advancing process of fully mechanized working face, and by field survey studied the moving characteristics of top coal and roof as well as macro caving characteristics of top coal (roof). Results of simulation and field survey indicated that fully mechanized top coal caving mining method is feasible in thick and extra thick coal seam 8~#; Adopting the plane and three-dimensional similar material simulation on caving step and mode, it concluded that the reasonable caving step is two mining one caving and caving mode is single sequential caving. And this paper put forward some suggestions on choosing support of fully mechanized top coal caving working face in thick and extra thick coal seams of Kangjiatan coal mine.
采用数值模拟软件FLAC~(3D)对综放工作面推进过程中的顶煤冒落情况进行了模拟,采用现场实测研究了项煤及顶板运移特征、项煤(板)宏观冒落特征,模拟及观测结果表明在康家滩煤矿8~#复杂结构厚煤层中进行综放开采是可行的;采用平面和立体相似材料模拟实验方法对放煤步距与方式进行了模拟实验研究,得出了工作面合理的放煤步距为二采一放,合理的放煤方式为单轮顺序放煤。
Top coal caving capability and fully mechanized top coal caving technology were systematic discussion through the field measurement, theoretical analysis and numerical simulation method. Strata behavior law and its characteristics of 88203 working face was analysized, theory basis was provided for the selection of support. Based on the analysis of main factors influencing the top coal caving, such as coal intensity, mining depth, roof lithologic characters and thickness, coal seam thickness, roof fissurings and cracks, coal bed dirt layers and its thickness and so on, the paper studied the caving membership grade of each factor, and concluded the comprehensive evaluation data of top coal caving.
Using FLAC~(3D) numerical simulation, this paper simulated top coal caving during the advancing process of fully mechanized working face, and by field survey studied the moving characteristics of top coal and roof as well as macro caving characteristics of top coal (roof). Results of simulation and field survey indicated that fully mechanized top coal caving mining method is feasible in thick and extra thick coal seam 8~#; Adopting the plane and three-dimensional similar material simulation on caving step and mode, it concluded that the reasonable caving step is two mining one caving and caving mode is single sequential caving. And this paper put forward some suggestions on choosing support of fully mechanized top coal caving working face in thick and extra thick coal seams of Kangjiatan coal mine.
引文
[1]黄福昌等.兖州矿区综放开采技术与成套设备[M].北京:煤炭工业出版社,2002
[2]张文江,张顶立等.特厚坚硬煤层综合机械化放顶煤开采技术[M].北京:煤炭工业出版社,2004
[3]富强,张建华.硬厚煤层开采顶煤弱化技术研究[J].煤矿开采,2004(9):60-62
[4]靳钟铭.放顶煤开采理论与技术[M].北京:煤炭工业出版社,2001
[5]卫建清.兖州矿区厚煤层综放开采模型及其机理研究[M].北京:中国矿业大学,2003
[6]赵景礼等.综放开采在小峪3~#煤层应用的可行性研究[J].太原理工大学学报,1998(2):166-169
[7]贾光胜,田有明,常海雷等.王坡井田3~#煤层综放开采可行性研究[J].煤矿开采,2004(9):18-20
[8]王跃辉等.特厚煤层综放开采的可行性研究与实践[J].东北煤炭技术,1996(5):43-51
[9]郭忠平,樊克恭等.煤矿开采新技术[M].徐州:中国矿业大学出版社,1999
[10]明科栋等.南阳煤矿3~#煤层综放开采可行性研究[J].煤矿开采,2005(10):21-22
[11]兖州矿业(集团)有限责任公司.兖州矿区煤炭生产技术[M].北京:煤炭工业出版社,1998
[12]李清堂,贾光胜等.大阳煤矿3~#煤层综放开采可行性研究[J].煤矿开采,2002(2):13-15
[13]陈富勇,宋三胜等.芦岭煤矿810采区综放开采可行性分析[J].煤矿安全与环保,2000(4):48-50
[14]何凤强.4.54m厚煤层应用综放开采可行性分析[J].煤矿开采,2004(12):28-30
[15]闫少宏,樊运策,刘建华等.汝箕沟煤矿二_2~1煤层综放开采可行性研究[J].煤矿开采,2002.(9):17-21
[16]毛德兵,康立军.大采高综放开采及其应用可行性分析[J].煤矿开采,2003(3):11-15
[17]魏锦平,李胜利,靳钟铭.综放采场项煤压裂机理的实验研究[J].岩石力学与工程学报,2002(8):1178-1182
[18]张榜雄.耿村煤矿综放开采项煤运移与破碎特征[J].煤矿开采,2002(12):46-48
[19]李树刚,石平五等.覆岩采动裂隙椭抛带动态分布特征研究[J].矿山压力与顶板管理,1999(3):44-46
[20]贾光胜.综放开采顶煤冒放性确定[J].煤炭科学技术,2001(7):42-44
[21]谢和平,赵旭清.综放开采顶煤体的连续损伤破坏分析[J].中国矿业大学学报,2001(7):323-327
[22]陈忠辉,谢和平,林忠明.综放开采顶煤冒放性的损伤力学分析[J].岩石力学与工程学报,2002(8):1136-1140
[23]贾光胜等.综放开采顶煤冒放性的数值模拟研究[J].矿山压力与顶板管理,2000(4):5-8
[24]朱川曲,缪协兴.综放开采顶煤可放性分类研究[J].矿山压力与顶板管理2002(4):59-61
[25]张耀荣,韩武学.综放工作面硬煤裂隙分布对其冒放性研究[J].煤炭,1998(4):32-33
[26]张耀荣,赵和平等.综放工作面裂隙分布对其顶煤冒放性影响的研究[J].煤炭,2000(1):29-33
[27]樊运策.综放工作面冒落项煤放出控制[J].煤炭学报,2001(12):606-610
[28]李振明.坚硬煤层大放高综放面矿压显现特点[J].矿山压力与顶板管理,2002(3):50-53
[29]杨建军.综采放项煤工作面的顶板控制[J].煤矿安全,2003(3):12-14
[30]Zhang Dingli et al.study,study on roof coal breaking and rational mining parameter in longwall caving face,Proceeding of international symposium of ACMRM'93,MAY 1993
[31]Zhong Ming Jin,jing pin Wei.Test study on the top cracking process of large coal sample.Int,syrup.on mining science and technology,Aug29-31.1999
[32]姜福兴,王同旭,潘立友等.矿山压力与岩层控制[M].北京:煤炭工业出版社,2004
[33]张升祥,刘厚明,何长龙.综采放顶煤工作面片帮掉顶的原因及处理[J].煤矿安全,2002(7):27-29
[34]刘克功,李社柱,何富连.低位放顶煤工作面顶板来压和顶煤垮落研究[J].矿山 压力与顶板管理,2002(1):79-80
[35]靳钟铭,魏锦平.放顶煤采场前支承压力分布特征[J].太原理工大学学报,2001(5):216-218
[36]翟新献.放顶煤工作面顶板岩层移动相似模拟研究[J].岩石力学与工程学报,2002(11):1667-1671
[37]于海涌,贾恩立,穆荣昌.放项煤开采基础理论[M].北京:煤炭工业出版社,1995
[38]Tlanhe Kang,Zhongming Jin.Laws of coal rock movement and dericed support parameters for a suuly mechanized sub-level caving face in a gently inclind seam.International Mining&Minerals,1999.vol.2.No.21
[39]高清启,张景立等.孤岛放顶煤工作面初采冒顶事故原因分析[J].煤矿安全,2002(4):45-46
[40]徐金海,张顶立.综放工作面端面冒顶事故的防治[J].中国安全科学学报,1998(10):28-31
[41]皮大峰等.综放工作面冒顶事故分析及防治[J].中州煤炭,2001(4):60-61
[42]张顶立,钱鸣高.综放工作面围岩结构分析[J].岩石力学与工程学报,1998(8):320-326
[43]齐方跃,张恩瑞.综放开采的矿压控制实践[J].矿山压力与顶板管理,1998(2):2-4
[44]陆明心,郝海金,吴健.综放开采上位岩层的平衡结构及其对采场矿压显现的影响[J].煤炭学报,2002(12):591-595
[45]李正龙,孟祥军等.综放面端面冒顶分析[J].矿山压力与顶板管理,1998(1):5-7
[46]张顶立.综放工作面岩层控制[J].山东科技大学学报,2000(3):8-11
[47]师文林,张长根等.王庄矿高产高效综放面采煤工艺研究[J].矿山压力与顶板管理,1996(3):12-15
[48]郑行周,王金华等.提高综放工作面单产的技术途径[J].煤炭科学技术,1998(3):48-51
[49]张克涛.煤层特征对综采放顶煤工艺的控制作用[J].煤田地质与勘探,2001(4):19-20
[50]钱鸣高,石平五.矿山压力与岩层控制[M].徐州:中国矿业大学出版社,2003
[51]He Manchao.Current Condition for Mechanics of Softrock in China[M].Rock Engineering.The Korean Institute of Mining Energy Press,1996.425-433
[52]Liu Sheyu;Ma Nianjie;Liu Shaowei.Determination of rational support parameters of bolting and shotcreting with wire mesh in soft roadway[J].Journal of Coal Science &Engineering,2005(2):20-23
[53]魏锦平等.坚硬顶板综放采场台阶式悬梁结构控制及其数值分析[J].湘潭矿业学院学报,2002(12):15-19
[54]吴健,张勇.综放采场支架-围岩关系的新概念[J].煤炭学报,2001(8):350-355
[55]魏锦平,牛彦华,李胜.两硬综放面顶煤顶板冒放结构探讨[J].山西矿业学院学报1997(15):331-336
[2]张文江,张顶立等.特厚坚硬煤层综合机械化放顶煤开采技术[M].北京:煤炭工业出版社,2004
[3]富强,张建华.硬厚煤层开采顶煤弱化技术研究[J].煤矿开采,2004(9):60-62
[4]靳钟铭.放顶煤开采理论与技术[M].北京:煤炭工业出版社,2001
[5]卫建清.兖州矿区厚煤层综放开采模型及其机理研究[M].北京:中国矿业大学,2003
[6]赵景礼等.综放开采在小峪3~#煤层应用的可行性研究[J].太原理工大学学报,1998(2):166-169
[7]贾光胜,田有明,常海雷等.王坡井田3~#煤层综放开采可行性研究[J].煤矿开采,2004(9):18-20
[8]王跃辉等.特厚煤层综放开采的可行性研究与实践[J].东北煤炭技术,1996(5):43-51
[9]郭忠平,樊克恭等.煤矿开采新技术[M].徐州:中国矿业大学出版社,1999
[10]明科栋等.南阳煤矿3~#煤层综放开采可行性研究[J].煤矿开采,2005(10):21-22
[11]兖州矿业(集团)有限责任公司.兖州矿区煤炭生产技术[M].北京:煤炭工业出版社,1998
[12]李清堂,贾光胜等.大阳煤矿3~#煤层综放开采可行性研究[J].煤矿开采,2002(2):13-15
[13]陈富勇,宋三胜等.芦岭煤矿810采区综放开采可行性分析[J].煤矿安全与环保,2000(4):48-50
[14]何凤强.4.54m厚煤层应用综放开采可行性分析[J].煤矿开采,2004(12):28-30
[15]闫少宏,樊运策,刘建华等.汝箕沟煤矿二_2~1煤层综放开采可行性研究[J].煤矿开采,2002.(9):17-21
[16]毛德兵,康立军.大采高综放开采及其应用可行性分析[J].煤矿开采,2003(3):11-15
[17]魏锦平,李胜利,靳钟铭.综放采场项煤压裂机理的实验研究[J].岩石力学与工程学报,2002(8):1178-1182
[18]张榜雄.耿村煤矿综放开采项煤运移与破碎特征[J].煤矿开采,2002(12):46-48
[19]李树刚,石平五等.覆岩采动裂隙椭抛带动态分布特征研究[J].矿山压力与顶板管理,1999(3):44-46
[20]贾光胜.综放开采顶煤冒放性确定[J].煤炭科学技术,2001(7):42-44
[21]谢和平,赵旭清.综放开采顶煤体的连续损伤破坏分析[J].中国矿业大学学报,2001(7):323-327
[22]陈忠辉,谢和平,林忠明.综放开采顶煤冒放性的损伤力学分析[J].岩石力学与工程学报,2002(8):1136-1140
[23]贾光胜等.综放开采顶煤冒放性的数值模拟研究[J].矿山压力与顶板管理,2000(4):5-8
[24]朱川曲,缪协兴.综放开采顶煤可放性分类研究[J].矿山压力与顶板管理2002(4):59-61
[25]张耀荣,韩武学.综放工作面硬煤裂隙分布对其冒放性研究[J].煤炭,1998(4):32-33
[26]张耀荣,赵和平等.综放工作面裂隙分布对其顶煤冒放性影响的研究[J].煤炭,2000(1):29-33
[27]樊运策.综放工作面冒落项煤放出控制[J].煤炭学报,2001(12):606-610
[28]李振明.坚硬煤层大放高综放面矿压显现特点[J].矿山压力与顶板管理,2002(3):50-53
[29]杨建军.综采放项煤工作面的顶板控制[J].煤矿安全,2003(3):12-14
[30]Zhang Dingli et al.study,study on roof coal breaking and rational mining parameter in longwall caving face,Proceeding of international symposium of ACMRM'93,MAY 1993
[31]Zhong Ming Jin,jing pin Wei.Test study on the top cracking process of large coal sample.Int,syrup.on mining science and technology,Aug29-31.1999
[32]姜福兴,王同旭,潘立友等.矿山压力与岩层控制[M].北京:煤炭工业出版社,2004
[33]张升祥,刘厚明,何长龙.综采放顶煤工作面片帮掉顶的原因及处理[J].煤矿安全,2002(7):27-29
[34]刘克功,李社柱,何富连.低位放顶煤工作面顶板来压和顶煤垮落研究[J].矿山 压力与顶板管理,2002(1):79-80
[35]靳钟铭,魏锦平.放顶煤采场前支承压力分布特征[J].太原理工大学学报,2001(5):216-218
[36]翟新献.放顶煤工作面顶板岩层移动相似模拟研究[J].岩石力学与工程学报,2002(11):1667-1671
[37]于海涌,贾恩立,穆荣昌.放项煤开采基础理论[M].北京:煤炭工业出版社,1995
[38]Tlanhe Kang,Zhongming Jin.Laws of coal rock movement and dericed support parameters for a suuly mechanized sub-level caving face in a gently inclind seam.International Mining&Minerals,1999.vol.2.No.21
[39]高清启,张景立等.孤岛放顶煤工作面初采冒顶事故原因分析[J].煤矿安全,2002(4):45-46
[40]徐金海,张顶立.综放工作面端面冒顶事故的防治[J].中国安全科学学报,1998(10):28-31
[41]皮大峰等.综放工作面冒顶事故分析及防治[J].中州煤炭,2001(4):60-61
[42]张顶立,钱鸣高.综放工作面围岩结构分析[J].岩石力学与工程学报,1998(8):320-326
[43]齐方跃,张恩瑞.综放开采的矿压控制实践[J].矿山压力与顶板管理,1998(2):2-4
[44]陆明心,郝海金,吴健.综放开采上位岩层的平衡结构及其对采场矿压显现的影响[J].煤炭学报,2002(12):591-595
[45]李正龙,孟祥军等.综放面端面冒顶分析[J].矿山压力与顶板管理,1998(1):5-7
[46]张顶立.综放工作面岩层控制[J].山东科技大学学报,2000(3):8-11
[47]师文林,张长根等.王庄矿高产高效综放面采煤工艺研究[J].矿山压力与顶板管理,1996(3):12-15
[48]郑行周,王金华等.提高综放工作面单产的技术途径[J].煤炭科学技术,1998(3):48-51
[49]张克涛.煤层特征对综采放顶煤工艺的控制作用[J].煤田地质与勘探,2001(4):19-20
[50]钱鸣高,石平五.矿山压力与岩层控制[M].徐州:中国矿业大学出版社,2003
[51]He Manchao.Current Condition for Mechanics of Softrock in China[M].Rock Engineering.The Korean Institute of Mining Energy Press,1996.425-433
[52]Liu Sheyu;Ma Nianjie;Liu Shaowei.Determination of rational support parameters of bolting and shotcreting with wire mesh in soft roadway[J].Journal of Coal Science &Engineering,2005(2):20-23
[53]魏锦平等.坚硬顶板综放采场台阶式悬梁结构控制及其数值分析[J].湘潭矿业学院学报,2002(12):15-19
[54]吴健,张勇.综放采场支架-围岩关系的新概念[J].煤炭学报,2001(8):350-355
[55]魏锦平,牛彦华,李胜.两硬综放面顶煤顶板冒放结构探讨[J].山西矿业学院学报1997(15):331-336