综放大坡度仰斜开采及围岩控制技术研究
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摘要
红会四矿是靖远煤业集团公司的一个老矿井,开采特厚煤层,煤质优良。目前矿井剩余可采资源量多数煤层倾角都在20°以上,部分达到35°左右,而且煤层走向变化大,地质构造多,必需采用倾斜长壁综放大坡度仰斜开采,使得部分综放工作面的仰采坡度超过了30°,综放工作面的仰采坡度大大超过了一般认为的仰采坡度上限,严重影响着矿井的安全高效和正常生产。
本文在对红会四矿大倾角特厚煤层倾斜长壁综放开采现场状况调查的基础上,系统分析了其综放工作面大坡度仰斜开采的基本特点。对大坡度仰斜开采综放工作面支架围岩系统稳定性特征、以及大坡度仰斜开采综放工作面煤壁片帮形式进行了分析,采用数字模拟方法分析了大坡度仰采综放面煤壁应力的分布特征及其对片帮冒顶的影响作用,在此基础上,提出了综放工作面大坡度仰斜开采时的顶板和煤壁控制技术措施,并进行了现场试验和应用。现场工程实践表明,提出的顶板和煤壁控制技术措施有效改善了大坡度仰斜开采综放面的支架围岩稳定性,现场试验取得了良好的技术经济效果。
Coal mine No.4 of Hong Hui in JingYuan Coal Industry Group Mine is an old mine, mining thick coal seam, coal quality,mine is currently the majority of remaining recoverable coal resources are in the 20°angle above, partly to reach 35°or so, and coal seam changes, geological structure and more, it is necessary to enlarge the great slope of longwall mining inclined to make part of the mining face the rise mining slope more than 30°, mining face rise mining slope much higher than is generally believed that the rise mining slope limit, a serious impact on the mine and the normal production of safe and efficient.
This subject in the coal mine No.4 inclined thick coal seam longwall caving on the basis of field tested, the system analyzes its mining face great slope overhand mining the basic characteristics.Tilting on the large slope mining mining face rock caving system stability characteristics, and the great slope overhand mining coal caving face in the form of rib fall analysis, digital simulation analysis of a large slope rise mining mining face coal wall stress distribution and its impact on the role of fall roof, on this basis, the proposed inclined thick coal seam longwall mining face large slope overhand mining and the coal wall when the roof control measures, and conducted field trials and applications.Field engineering practice show that the coal wall and roof control measures to effectively improve the large slope topple mining face of the stent rock stability, field test technologies have achieved good economic results.
本文在对红会四矿大倾角特厚煤层倾斜长壁综放开采现场状况调查的基础上,系统分析了其综放工作面大坡度仰斜开采的基本特点。对大坡度仰斜开采综放工作面支架围岩系统稳定性特征、以及大坡度仰斜开采综放工作面煤壁片帮形式进行了分析,采用数字模拟方法分析了大坡度仰采综放面煤壁应力的分布特征及其对片帮冒顶的影响作用,在此基础上,提出了综放工作面大坡度仰斜开采时的顶板和煤壁控制技术措施,并进行了现场试验和应用。现场工程实践表明,提出的顶板和煤壁控制技术措施有效改善了大坡度仰斜开采综放面的支架围岩稳定性,现场试验取得了良好的技术经济效果。
Coal mine No.4 of Hong Hui in JingYuan Coal Industry Group Mine is an old mine, mining thick coal seam, coal quality,mine is currently the majority of remaining recoverable coal resources are in the 20°angle above, partly to reach 35°or so, and coal seam changes, geological structure and more, it is necessary to enlarge the great slope of longwall mining inclined to make part of the mining face the rise mining slope more than 30°, mining face rise mining slope much higher than is generally believed that the rise mining slope limit, a serious impact on the mine and the normal production of safe and efficient.
This subject in the coal mine No.4 inclined thick coal seam longwall caving on the basis of field tested, the system analyzes its mining face great slope overhand mining the basic characteristics.Tilting on the large slope mining mining face rock caving system stability characteristics, and the great slope overhand mining coal caving face in the form of rib fall analysis, digital simulation analysis of a large slope rise mining mining face coal wall stress distribution and its impact on the role of fall roof, on this basis, the proposed inclined thick coal seam longwall mining face large slope overhand mining and the coal wall when the roof control measures, and conducted field trials and applications.Field engineering practice show that the coal wall and roof control measures to effectively improve the large slope topple mining face of the stent rock stability, field test technologies have achieved good economic results.
引文
[1]煤炭科技情报专题研究组.国外厚煤层放顶煤开采法现状与发展趋势. 2002
[2]刘吉昌主编.倾斜长壁采煤法.煤炭工业出版社,1993.608～612
[3] Sun Huimin Wang Xiaoding Rock pressure feature of stope of longwall caving method along dip in fully mechanized mining 1999(02)
[4]许家林,钱鸣高.鲍店矿仰采综采面顶板控制研究.1994(02)
[5]林东才,耿献文.倾斜长壁开采技术在大倾角煤层中的应用[期刊论文].煤炭技术.2001(2)
[6]王建军,曹耀丰.倾斜长壁仰斜综采的实践研究.1995(01)
[7]石建文,郑粉兔.大倾角仰斜开采存在的问题及对策.1998(02)
[8]华道友.大倾角煤层矿压显现立体相似模拟[期刊论文].矿山压力与顶板管理.1999(3)
[9]马文顶,刘长友.大倾角仰采工作面顶板控制试验研究.1996(04)
[10] Liu Jichang .Fracturing characterstics of main roof stara when mining uphill and its effect on stabbility of immediate roof JOURNAL OF CHINA COAL SOCIETY APR.1994 (04)VOL.19 NO.2
[11]廖学东.倾斜长壁综采条件下覆岩破坏规律初探,中州煤炭.1996(01)
[12]方新秋,张玉国.采场多裂隙直接顶破坏的模拟研究.矿山压力与顶板管理.2000.9,(02)
[13]刘长友,钱鸣高.采场直接顶的结构力学特性及其刚度.中国矿业大学学报. 1997(6)
[14] Qian Minggao Xu Jialin Study on the“O-shape”circile distribution characterstics of mining-induced fractures in the overlaying strata JOURNAL OF CHINA COAL SOCIETY 1998 (10)
[15]张顶立,王庆康.倾斜长壁工作面老顶岩层破断规律的研究.河北省岩石力学与工程学会学术研讨会论文集.
[16]唐黄松,张国明.倾斜长壁综采面矿压规律浅析.矿山压力与顶板管理.2003(3)
[17] Xu Jialin Qian Minggao Study of the Interaction between Supports and Surrounding Rock of Fully-Mechanized Up-dip Working Faces Journal of China University of Mining and Technology 1995(6)
[18]刘长友.采场支架阻力与顶板下沉量关系研究.矿山压力与顶板管理.1997(03)
[19]王贵虎,周更廷.大采高倾斜长壁综采面矿压显现规律.矿业安全与环保.2005(06)
[20] Ren Dehui Inclined Longwall Coal-mining 1980(02)
[21]崔国强,李洪刚.倾斜长壁采煤采场矿山压力的新特点.煤.2008(06)
[22] Chen Xuemin Meng Ercun Discussion on support and design of powered support for the top-coal caving of up-dip mining face Coal Mine Machinery 2004(03)
[23]钱鸣高,姚志昌,方新秋.高架顶梁俯仰角的监测与控制,矿山压力与顶板管理. 2000(02)
[24]刘吉昌.国外倾斜长壁采煤法.国外技术.
[25]刘明远.浅析倾斜长壁开采的使用条件.煤炭科学技术.1988(05)
[26]徐景贤.倾斜长壁工作面的矿压显现特点.华北科技学院学报.2002(03)
[27] Liu Jichang Lu Guanghua Present Situation and Trend of Inclind Longwall Mining Techique Coal Science and Technology 1991(03)
[28]王磊,谢广祥.倾斜长壁仰谢与俯谢开采终采线的合理确定.煤炭科学技术.2008(06)
[29]乔国厚,张良.“三软”煤层倾斜仰采一次采全高工艺实践.江苏煤炭.2001(02)
[30]邢士军,张连勇.特厚煤层倾斜长壁综放开采煤岩活动规律与支架适应性分析.煤炭开采新理论与新技术.
[31] Li Jianguo ,Tian Quzhen The Effecting Principle of Dip and Rise Mining on Rib Fall in Full-Mechanized Caving Face JOURNAL OF TAIYUAN UNIVERSITY OF TECHNOLOGY 2004(07)
[32]于润桥,王同旭.倾斜长壁工作面液压支架与围岩相互作用分析.倾斜长壁开采论文集.
[33] Qian Minggao ,Zhang dingli,Xu Jialin“S—R”Stability for the Voussoir Beam and Its Application Ground Pressure and Strata Control ,1994 (04)
[34]钱鸣高,石平五.矿山压力与岩层控制.北京:中国矿业大学出版社,2003.145～157
[35]宋振骐.实用矿山压力控制.徐州:中国矿业大学出版社,1988.121～126
[36]奥尔洛夫AA机械化支架与顶板的相互作用.辛镜生,张声涛等译.北京:煤炭工业出版社,1983.12
[37]刘吉昌.倾斜长壁开采.煤炭工业出版社,1993.4～5
[38]徐家林,钱鸣高.仰斜开采综采面支架与围岩作用关系的研究.中国矿业大学学报.1995.6
[39]钱鸣高,缪协兴.采场围岩整体结构与砌体梁力学模型.矿山压力与顶板管理,1995.3
[40]缪协兴,钱鸣高.综放采场围岩–支架整体力学模型及分析.煤,1998.7(6):1～5
[41]钱鸣高,刘长友等.采场支架–围岩关系新研究.煤炭学报.23(6):574～579.
[42]吴健,张勇.综放采场支架–围岩关系的新概念.煤炭学报,26(4):350～356
[2]刘吉昌主编.倾斜长壁采煤法.煤炭工业出版社,1993.608～612
[3] Sun Huimin Wang Xiaoding Rock pressure feature of stope of longwall caving method along dip in fully mechanized mining 1999(02)
[4]许家林,钱鸣高.鲍店矿仰采综采面顶板控制研究.1994(02)
[5]林东才,耿献文.倾斜长壁开采技术在大倾角煤层中的应用[期刊论文].煤炭技术.2001(2)
[6]王建军,曹耀丰.倾斜长壁仰斜综采的实践研究.1995(01)
[7]石建文,郑粉兔.大倾角仰斜开采存在的问题及对策.1998(02)
[8]华道友.大倾角煤层矿压显现立体相似模拟[期刊论文].矿山压力与顶板管理.1999(3)
[9]马文顶,刘长友.大倾角仰采工作面顶板控制试验研究.1996(04)
[10] Liu Jichang .Fracturing characterstics of main roof stara when mining uphill and its effect on stabbility of immediate roof JOURNAL OF CHINA COAL SOCIETY APR.1994 (04)VOL.19 NO.2
[11]廖学东.倾斜长壁综采条件下覆岩破坏规律初探,中州煤炭.1996(01)
[12]方新秋,张玉国.采场多裂隙直接顶破坏的模拟研究.矿山压力与顶板管理.2000.9,(02)
[13]刘长友,钱鸣高.采场直接顶的结构力学特性及其刚度.中国矿业大学学报. 1997(6)
[14] Qian Minggao Xu Jialin Study on the“O-shape”circile distribution characterstics of mining-induced fractures in the overlaying strata JOURNAL OF CHINA COAL SOCIETY 1998 (10)
[15]张顶立,王庆康.倾斜长壁工作面老顶岩层破断规律的研究.河北省岩石力学与工程学会学术研讨会论文集.
[16]唐黄松,张国明.倾斜长壁综采面矿压规律浅析.矿山压力与顶板管理.2003(3)
[17] Xu Jialin Qian Minggao Study of the Interaction between Supports and Surrounding Rock of Fully-Mechanized Up-dip Working Faces Journal of China University of Mining and Technology 1995(6)
[18]刘长友.采场支架阻力与顶板下沉量关系研究.矿山压力与顶板管理.1997(03)
[19]王贵虎,周更廷.大采高倾斜长壁综采面矿压显现规律.矿业安全与环保.2005(06)
[20] Ren Dehui Inclined Longwall Coal-mining 1980(02)
[21]崔国强,李洪刚.倾斜长壁采煤采场矿山压力的新特点.煤.2008(06)
[22] Chen Xuemin Meng Ercun Discussion on support and design of powered support for the top-coal caving of up-dip mining face Coal Mine Machinery 2004(03)
[23]钱鸣高,姚志昌,方新秋.高架顶梁俯仰角的监测与控制,矿山压力与顶板管理. 2000(02)
[24]刘吉昌.国外倾斜长壁采煤法.国外技术.
[25]刘明远.浅析倾斜长壁开采的使用条件.煤炭科学技术.1988(05)
[26]徐景贤.倾斜长壁工作面的矿压显现特点.华北科技学院学报.2002(03)
[27] Liu Jichang Lu Guanghua Present Situation and Trend of Inclind Longwall Mining Techique Coal Science and Technology 1991(03)
[28]王磊,谢广祥.倾斜长壁仰谢与俯谢开采终采线的合理确定.煤炭科学技术.2008(06)
[29]乔国厚,张良.“三软”煤层倾斜仰采一次采全高工艺实践.江苏煤炭.2001(02)
[30]邢士军,张连勇.特厚煤层倾斜长壁综放开采煤岩活动规律与支架适应性分析.煤炭开采新理论与新技术.
[31] Li Jianguo ,Tian Quzhen The Effecting Principle of Dip and Rise Mining on Rib Fall in Full-Mechanized Caving Face JOURNAL OF TAIYUAN UNIVERSITY OF TECHNOLOGY 2004(07)
[32]于润桥,王同旭.倾斜长壁工作面液压支架与围岩相互作用分析.倾斜长壁开采论文集.
[33] Qian Minggao ,Zhang dingli,Xu Jialin“S—R”Stability for the Voussoir Beam and Its Application Ground Pressure and Strata Control ,1994 (04)
[34]钱鸣高,石平五.矿山压力与岩层控制.北京:中国矿业大学出版社,2003.145～157
[35]宋振骐.实用矿山压力控制.徐州:中国矿业大学出版社,1988.121～126
[36]奥尔洛夫AA机械化支架与顶板的相互作用.辛镜生,张声涛等译.北京:煤炭工业出版社,1983.12
[37]刘吉昌.倾斜长壁开采.煤炭工业出版社,1993.4～5
[38]徐家林,钱鸣高.仰斜开采综采面支架与围岩作用关系的研究.中国矿业大学学报.1995.6
[39]钱鸣高,缪协兴.采场围岩整体结构与砌体梁力学模型.矿山压力与顶板管理,1995.3
[40]缪协兴,钱鸣高.综放采场围岩–支架整体力学模型及分析.煤,1998.7(6):1～5
[41]钱鸣高,刘长友等.采场支架–围岩关系新研究.煤炭学报.23(6):574～579.
[42]吴健,张勇.综放采场支架–围岩关系的新概念.煤炭学报,26(4):350～356