三百子煤矿5煤上行开采法可行性研究
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摘要
以三百子煤矿2、5煤为研究对象,对其煤层特征以及顶底板的岩性进行分析,使用数值模拟的方法对采场覆岩破坏规律进行研究。通过理论计算、工程类比和数值模拟得出的5煤裂缝带高度分别为55. 4 m、84. 9 m和85 m。综合分析,从安全角度考虑,认为开采5煤产生的裂缝带最大高度为85 m左右,2煤经济可采区域与5煤层间距均大于90 m,预计开采5煤对2煤经济可采区域影响不大,2煤上行开采是可行的。
Taking No. 2 and No. 5 coal in Sanbaizi Coal Mine as the research object, the characteristics of coal seam and the lithology of roof and floor were analyzed, and the law of overburden failure in stope was studied by numerical simulation. Through theoretical calculation, engineering analogy and numerical simulation, the height of fracture zones for No.5 Coal are 55.4 m, 84.9 m and 85 m, respectively. From the safety point of view, it was considered that the maximum height of the fracture zone produced by mining No.5 Coal is about 85 m, and the spacing between the economic mining area of No.2 Coal and No.5 Coal is more than 90 m. It was predicted that mining No.5 Coal Seam will not affect the economic mining area of No.2 Coal, and upward mining of No.2 Coal is feasible.
Taking No. 2 and No. 5 coal in Sanbaizi Coal Mine as the research object, the characteristics of coal seam and the lithology of roof and floor were analyzed, and the law of overburden failure in stope was studied by numerical simulation. Through theoretical calculation, engineering analogy and numerical simulation, the height of fracture zones for No.5 Coal are 55.4 m, 84.9 m and 85 m, respectively. From the safety point of view, it was considered that the maximum height of the fracture zone produced by mining No.5 Coal is about 85 m, and the spacing between the economic mining area of No.2 Coal and No.5 Coal is more than 90 m. It was predicted that mining No.5 Coal Seam will not affect the economic mining area of No.2 Coal, and upward mining of No.2 Coal is feasible.
引文
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[15]缪协兴,黄艳利,巨峰,等.密实充填采煤的岩层移动理论研究[J].中国矿业大学学报,2012,41(6):863-867.
[2]Baryshnikov V D,Gakhova L N.Geomechanical substantiation of access roads and stope faces in upward mining of the reserves subjacent the open pit bottom in terms of the mine“Aikhal”[J].Journal of Mining Science,2008,44(2):155-162.
[3]陈晓红,赖邦传,罗铤.Mining association rule efficiently based on data warehouse[J].Journal of Central South University of Technology,2003,10(4):375-380.
[4]徐永圻.采矿学[M].徐州:中国矿业大学出版社,2003:190-200.
[5]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,2003:102-107.
[6]钱鸣高,缪协兴,黎良杰.采场底板岩层破断规律的理论研究[J].岩土工程学报,1995,17(6):55-62.
[7]岑传鸿.采场顶板控制及监测技术[M].徐州:中国矿业大学出版社,1998:30-34.
[8]蒋金泉.采场围岩应力与运动[M].北京:煤炭工业出版社,1993:29-35.
[9]葛尔巴节夫.札柏库兹巴斯煤层群上行顺序开采法[M].北京:煤炭工业出版社,1958:1-20.
[10]郝延锦,陈胜华.硬岩层对岩移参数的影响规律[J].煤,2000(4):8-9.
[11]何满潮.煤矿软岩工程技术现状及展望[J].中国煤炭,1999,25(8):12-16.
[12]许家林,钱鸣高.岩层控制关键层理论的应用研究与实践[J].中国矿业,2001,10(6):54-56.
[13]柳崇伟.裂隙岩体巷道稳定性的相关规律研究[D].太原:太原理工大学,2001.
[14]张勇,刘传安,张西斌,等.煤层群上行开采对上覆煤层运移的影响[J].煤炭学报,2012,36(12):1 990-1 995.
[15]缪协兴,黄艳利,巨峰,等.密实充填采煤的岩层移动理论研究[J].中国矿业大学学报,2012,41(6):863-867.