厚含水松散层下煤岩柱合理留设研究
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摘要
本文采用实验室分析、理论分析、物理与数值模拟和现场试验的综合研究方法,对五沟煤矿厚含水松散层下开采时的上覆岩层移动规律、覆岩力学组合结构类型、导水裂隙带等进行了深入研究,并分析了风化基岩的物理力学性能及变异特征,建立了薄基岩浅埋煤层上覆岩层破坏移动规律的工程地质模型,得出了1011工作面开采期间直接顶初次垮落步距、基本顶初次来压步距、周期来压步距;分析了导水裂隙带的发育形态;获得了厚松散含水层下防水煤岩柱的合理高度,提高了综采工作面的回采上限。研究成果不仅为煤矿提高资源回收率、水体下采煤提供了理论依据,而且对该矿井和其它类似条件工作面提高回采上限有一定的借鉴和指导意义。
图[75]表[10]参[50]
In this paper, compositive research techniques including of theoretical analysis and laboratory analysis, physics and numerical simulation, in-situ measurement are carried out to investigate into movement laws of overlying strata, mechanical composite structure types of overburden strata and fractured zone of mining under thick aquiferous loose bed in WuGou mine. Physicical mechanics capability and variation characteristics of efflorescent bedrock are analyzed and engineering geologic model reflecting the rules of overlying strata movement and damage of weak bedrock shallow embedding is modeled. The results, the immediate roof collapse step pitch, main roof first weighting step pitch, periodic weighting step pitch, are obtained during face 1011 winning. Developed configuration of the fracturation zone is analyzed, and reasaonble width of waterproof rock-coal pillar under thick aquiferous loose bed is obtainded, and mining toplimit is improved. The results can provide theoretical basis for improving the recovery of mine and coal mining under water-bodies. At the same time, the results have guiding to improve mining toplimit for this mine and other similar conditions mine.
图[75]表[10]参[50]
In this paper, compositive research techniques including of theoretical analysis and laboratory analysis, physics and numerical simulation, in-situ measurement are carried out to investigate into movement laws of overlying strata, mechanical composite structure types of overburden strata and fractured zone of mining under thick aquiferous loose bed in WuGou mine. Physicical mechanics capability and variation characteristics of efflorescent bedrock are analyzed and engineering geologic model reflecting the rules of overlying strata movement and damage of weak bedrock shallow embedding is modeled. The results, the immediate roof collapse step pitch, main roof first weighting step pitch, periodic weighting step pitch, are obtained during face 1011 winning. Developed configuration of the fracturation zone is analyzed, and reasaonble width of waterproof rock-coal pillar under thick aquiferous loose bed is obtainded, and mining toplimit is improved. The results can provide theoretical basis for improving the recovery of mine and coal mining under water-bodies. At the same time, the results have guiding to improve mining toplimit for this mine and other similar conditions mine.
引文
[1]煤炭科学研究院北京开采研究所.煤矿地表移动与覆岩破坏规律及其应用[M].北京:煤炭工业出版社,1981,131-142
[2]何国清,杨伦.矿山开采沉陷学[M].徐州:中国矿业大学出版社,1989,23-40
[3]刘天泉,仲惟林,焦传武等.地表移动与煤矿覆岩破坏规律[M].北京:煤炭工业出版社,1981,12-23
[4]宋振骐.实用矿山压力控制[M].徐州:中国矿业大学出版社,1988.46-52
[5]国家煤炭工业局制定.建筑物、水体、铁路及主要井巷煤柱留设与压煤开采规程[M].北京:煤炭工业出版社,2000.6,10-30
[6]刘波,韩彦辉.FLAC原理实例及应用指南[M].北京:人民交通出版社,2005,221-246
[7]何国清.矿山开采沉陷学[M].徐州:中国矿业大学出版社,1991,21-26
[8]杨本水,王丛书,阎昌银.中等含水层下留设防砂煤柱开采的试验与研究[J].煤炭学报,No.4,2002,342-346
[9]桂和荣.超薄基岩条件下无煤柱放顶煤开采技术研究[J].煤炭科学技术.No.4,2003,14-17
[10]张文艺.覆岩破坏移动规律与缩小防护煤柱机理[J].矿山压力与顶板管理.No.4,2002,13-16
[11]宣以琼.3222工作面突水灾害成因与治理技术[J].煤矿安全,No.2,2003,33-35
[12]杨本水,杨永林.祁东煤矿突水成因与快速治理技术[J].煤炭科学技术,No.3,2004,23-27
[13]刘天泉.“三下一上”采煤技术的现状及展望[J].煤炭科学技术,No.1,1995,34-36
[14]Ouchterlony F.Prediction of crack Lengths in Rock after cautions Blasting with Zero Inter-hole Delay.Fragblst inter J.Blasting and Fragmentation.1999:229
[15]谢和平.裂隙岩体损伤模型及其应用研究[J]中国科学,No.2,2003,38-43
[16]疏开生.微山湖下采煤的试验与研究[J].煤炭科学技术,No.7,1992,13-14
[17]曾联波.低渗透砂岩油气储层裂缝及其渗流特征[J].地质科学.No.1,2004,11-17
[18]赵阳升,杨栋.三维应力作用下岩石裂隙水渗流物性规律的试验研究[J].中国科学E,No.1,1999,82-86
[19]E.perfeet,Fractal models for the fragmentation of rocks and soils,Engineering Geology 48(1997):185-198
[20]K.G.Hinzen Comparison of Seismic and Explosive energy in Five Smooth Blasting Test Rounds,Int.J.Rock Min.Sci.Vol.35(7):957-967
[21]H.S.W.Pinnaduwa Box fractal dimension as a measure of statistical homogeneity of jointed rock masses,Engineering Geology 48(1997)217-229
[22]Mortazavi,Modeling of Blast hole Expansion and Explosive Gas Pressurization in Jointed Media,Int.J.RockMin.Sci.Vol.35(4/5):497-498
[23]Taloy L M,Chen E P,Microcrack-induced Damage Accumulation in Britte Rock Under Dynamic Loading.Computer Methods in Applied Mechanics and Engineering,1986,55(3):301-320
[24]Simons J W,A computer model for explosively induced rock fragmentation during mining operations.68th ANN.Minnesota Mining Symp.Jan 24-26,1995:203-213
[25]Barbour T G,Prediction of fragmentation using CAVS.Fragmentation by blasting.Society for Experimental Mechanics.1 ST Edn.1985:158-172
[26]Kipp M E,Grady D E.Numerical Studies of Rock Fragmentation.SAND791582,Australia,1990
[27]刘天泉.矿山岩体采动影响与控制工程学及其应用[J].煤炭学报,No.1,1995,1-5
[28]钱鸣高,许家林.煤矿绿色开采技术[J].中国矿业大学学报.No.4,2903,343-347
[29]许家林,钱鸣高.岩层采动裂隙分布在绿色开采中的应用[J].中国矿业大学学报.No.2,2004,141-144
[30]杨本水,刘效云,尹纯刚.上提工作面矿压显现特征及其控制[J].矿山压力与顶板管理,No.2,2000,41-43
[31]杨会军.基岩裂隙水的渗透特性探讨与工程应用[J]..岩石力学与工程学报.No.2,2003,582-587
[32]郑少和,葛修润.裂隙岩体的渗流场与损伤场的耦合分析[J].岩石力学与工程学报,No.9,2004,1413-1418
[33]杨延毅,周维恒.裂隙岩体的渗流-损伤耦合模型分析及其应用[J].水利学报,No.5,2001.19-27
[34]盛金昌,速宝玉.裂隙岩体渗流应力耦合研究综述[J].岩土力学,No.6,1998,1-6
[35]廖学东.临接风化带采煤的覆岩破坏移动特征研究[J].东北煤炭技术,No.5,1998,30-33
[36]葛修润,郑少和.渗透压力对裂隙岩体的渗流损伤特性[J].岩土力学 No.2,2002,19-27
[37]杨本水.受松散层含水体威胁的煤层绿色开采关键技术的试验研究[J].煤炭学报.No.6,2003,582-586
[38]桂和荣等.厚松散层及超薄覆岩条件下放顶煤开采防砂煤柱[J].煤田地质与勘探.No.2,2002,36-40
[39]申宝宏.综放工作面覆岩破坏规律的观测研究[J].煤田地质与勘探.No.5,2000,42-43
[40]张文艺,钟梅英.巨厚松散层下综放开采两带高度探测[J].矿山压力与顶板管理.No-3,2000,55-57
[41]廖学东.松散含水层下采煤合理煤岩柱高度的确定[J].辽宁工程技术大学学报.No.6.2003,768-769
[42]涂敏,余忠林.巨厚松散强含水层下开采覆岩移动破坏分析[J].矿山压力与顶板管理.No.2,2004,1-4
[43]张文艺,汪文革,彭卫东,等.潘谢矿区缩小防水煤柱开采实践[J].煤炭学报,No.2,2002,128-133
[44]张浩.厚松散含水层下特厚煤层轻放开采可行性分析[J].煤炭技术,No.4,2003,34-36
[45]张世凯.厚含水松散层薄基岩开采涌水规律及预计[J].河北煤炭,No.2,1999,1-3
[46]赵阳升,胡耀青.构造防水煤柱留设尺寸的研究[J].矿山压力与顶板管理.No.1,1999,78-80
[47]殷东平,刘玉德.龙东煤矿防水煤柱开采方案选择[J].矿山压力与顶板管理.No.10,2004,47-49
[48]孙洪星,康永华.龙口矿区近海厚冲积层下综放采煤防水煤岩柱的留殴研究[J].煤炭科学技术.No.6,1999,6-9
[49]杨本水,王从书,阎昌银.中等含水层下留设防砂煤柱开采的试验与研究[J].煤炭学报.No.8,2002,342-346
[50]陈玉岭,高荣久,周锦华.在地表大型水体及巨厚含水松散层下综放采煤[J].矿山测量.No.3,2006,79-81
[2]何国清,杨伦.矿山开采沉陷学[M].徐州:中国矿业大学出版社,1989,23-40
[3]刘天泉,仲惟林,焦传武等.地表移动与煤矿覆岩破坏规律[M].北京:煤炭工业出版社,1981,12-23
[4]宋振骐.实用矿山压力控制[M].徐州:中国矿业大学出版社,1988.46-52
[5]国家煤炭工业局制定.建筑物、水体、铁路及主要井巷煤柱留设与压煤开采规程[M].北京:煤炭工业出版社,2000.6,10-30
[6]刘波,韩彦辉.FLAC原理实例及应用指南[M].北京:人民交通出版社,2005,221-246
[7]何国清.矿山开采沉陷学[M].徐州:中国矿业大学出版社,1991,21-26
[8]杨本水,王丛书,阎昌银.中等含水层下留设防砂煤柱开采的试验与研究[J].煤炭学报,No.4,2002,342-346
[9]桂和荣.超薄基岩条件下无煤柱放顶煤开采技术研究[J].煤炭科学技术.No.4,2003,14-17
[10]张文艺.覆岩破坏移动规律与缩小防护煤柱机理[J].矿山压力与顶板管理.No.4,2002,13-16
[11]宣以琼.3222工作面突水灾害成因与治理技术[J].煤矿安全,No.2,2003,33-35
[12]杨本水,杨永林.祁东煤矿突水成因与快速治理技术[J].煤炭科学技术,No.3,2004,23-27
[13]刘天泉.“三下一上”采煤技术的现状及展望[J].煤炭科学技术,No.1,1995,34-36
[14]Ouchterlony F.Prediction of crack Lengths in Rock after cautions Blasting with Zero Inter-hole Delay.Fragblst inter J.Blasting and Fragmentation.1999:229
[15]谢和平.裂隙岩体损伤模型及其应用研究[J]中国科学,No.2,2003,38-43
[16]疏开生.微山湖下采煤的试验与研究[J].煤炭科学技术,No.7,1992,13-14
[17]曾联波.低渗透砂岩油气储层裂缝及其渗流特征[J].地质科学.No.1,2004,11-17
[18]赵阳升,杨栋.三维应力作用下岩石裂隙水渗流物性规律的试验研究[J].中国科学E,No.1,1999,82-86
[19]E.perfeet,Fractal models for the fragmentation of rocks and soils,Engineering Geology 48(1997):185-198
[20]K.G.Hinzen Comparison of Seismic and Explosive energy in Five Smooth Blasting Test Rounds,Int.J.Rock Min.Sci.Vol.35(7):957-967
[21]H.S.W.Pinnaduwa Box fractal dimension as a measure of statistical homogeneity of jointed rock masses,Engineering Geology 48(1997)217-229
[22]Mortazavi,Modeling of Blast hole Expansion and Explosive Gas Pressurization in Jointed Media,Int.J.RockMin.Sci.Vol.35(4/5):497-498
[23]Taloy L M,Chen E P,Microcrack-induced Damage Accumulation in Britte Rock Under Dynamic Loading.Computer Methods in Applied Mechanics and Engineering,1986,55(3):301-320
[24]Simons J W,A computer model for explosively induced rock fragmentation during mining operations.68th ANN.Minnesota Mining Symp.Jan 24-26,1995:203-213
[25]Barbour T G,Prediction of fragmentation using CAVS.Fragmentation by blasting.Society for Experimental Mechanics.1 ST Edn.1985:158-172
[26]Kipp M E,Grady D E.Numerical Studies of Rock Fragmentation.SAND791582,Australia,1990
[27]刘天泉.矿山岩体采动影响与控制工程学及其应用[J].煤炭学报,No.1,1995,1-5
[28]钱鸣高,许家林.煤矿绿色开采技术[J].中国矿业大学学报.No.4,2903,343-347
[29]许家林,钱鸣高.岩层采动裂隙分布在绿色开采中的应用[J].中国矿业大学学报.No.2,2004,141-144
[30]杨本水,刘效云,尹纯刚.上提工作面矿压显现特征及其控制[J].矿山压力与顶板管理,No.2,2000,41-43
[31]杨会军.基岩裂隙水的渗透特性探讨与工程应用[J]..岩石力学与工程学报.No.2,2003,582-587
[32]郑少和,葛修润.裂隙岩体的渗流场与损伤场的耦合分析[J].岩石力学与工程学报,No.9,2004,1413-1418
[33]杨延毅,周维恒.裂隙岩体的渗流-损伤耦合模型分析及其应用[J].水利学报,No.5,2001.19-27
[34]盛金昌,速宝玉.裂隙岩体渗流应力耦合研究综述[J].岩土力学,No.6,1998,1-6
[35]廖学东.临接风化带采煤的覆岩破坏移动特征研究[J].东北煤炭技术,No.5,1998,30-33
[36]葛修润,郑少和.渗透压力对裂隙岩体的渗流损伤特性[J].岩土力学 No.2,2002,19-27
[37]杨本水.受松散层含水体威胁的煤层绿色开采关键技术的试验研究[J].煤炭学报.No.6,2003,582-586
[38]桂和荣等.厚松散层及超薄覆岩条件下放顶煤开采防砂煤柱[J].煤田地质与勘探.No.2,2002,36-40
[39]申宝宏.综放工作面覆岩破坏规律的观测研究[J].煤田地质与勘探.No.5,2000,42-43
[40]张文艺,钟梅英.巨厚松散层下综放开采两带高度探测[J].矿山压力与顶板管理.No-3,2000,55-57
[41]廖学东.松散含水层下采煤合理煤岩柱高度的确定[J].辽宁工程技术大学学报.No.6.2003,768-769
[42]涂敏,余忠林.巨厚松散强含水层下开采覆岩移动破坏分析[J].矿山压力与顶板管理.No.2,2004,1-4
[43]张文艺,汪文革,彭卫东,等.潘谢矿区缩小防水煤柱开采实践[J].煤炭学报,No.2,2002,128-133
[44]张浩.厚松散含水层下特厚煤层轻放开采可行性分析[J].煤炭技术,No.4,2003,34-36
[45]张世凯.厚含水松散层薄基岩开采涌水规律及预计[J].河北煤炭,No.2,1999,1-3
[46]赵阳升,胡耀青.构造防水煤柱留设尺寸的研究[J].矿山压力与顶板管理.No.1,1999,78-80
[47]殷东平,刘玉德.龙东煤矿防水煤柱开采方案选择[J].矿山压力与顶板管理.No.10,2004,47-49
[48]孙洪星,康永华.龙口矿区近海厚冲积层下综放采煤防水煤岩柱的留殴研究[J].煤炭科学技术.No.6,1999,6-9
[49]杨本水,王从书,阎昌银.中等含水层下留设防砂煤柱开采的试验与研究[J].煤炭学报.No.8,2002,342-346
[50]陈玉岭,高荣久,周锦华.在地表大型水体及巨厚含水松散层下综放采煤[J].矿山测量.No.3,2006,79-81