大采高综放开采适应性研究
|
摘要
通过数值模拟的方法对顶煤冒放性影响因素、煤壁稳定性影响因素进行综合分析,得到了顶煤拉伸破坏系数与煤壁拉伸破坏系数的多元线性回归方程,给出了大采高综放开采对煤层强度下限以及对煤层开采厚度上限的要求,并在平朔安家岭煤矿和潞安屯留煤矿进行了应用。应用结果表明,大采高综放开采有利于工作面实现安全均衡生产。
Based on the numerical simulations of coal wall stability and top coal cavability in longwall top coal caving face with high cutting height,the multiple linear regression equations of top coal and coal wall tensile failure coefficients were put forward.According to the relationship of mining height,coal height and coal strength,lower limit of coal strength and upper limit of mining height were suggested.Actual practice in Anjialing and Tunliu Coal Mines shows that longwall top coal caving with high cutting height is an effective approach to safety and high-efficiency.
Based on the numerical simulations of coal wall stability and top coal cavability in longwall top coal caving face with high cutting height,the multiple linear regression equations of top coal and coal wall tensile failure coefficients were put forward.According to the relationship of mining height,coal height and coal strength,lower limit of coal strength and upper limit of mining height were suggested.Actual practice in Anjialing and Tunliu Coal Mines shows that longwall top coal caving with high cutting height is an effective approach to safety and high-efficiency.
引文
[1]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,2003,8(3):11-14.Mao Debing,Kang Lijun.Longwall top coal caving mining with high-er mining height and its feasibility[J].Coal Mining Technology,2003,8(3):11-14.
[2]毛德兵.大采高综放开采及其在高瓦斯厚煤层中应用前景[A].采矿工程新论[C].北京:煤炭工业出版社,2005:84-89.
[3]闫少宏.特厚煤层大采高综放开采支架外载的理论研究[J].煤炭学报,2009,34(5):590-593.Yan Shaohong.Theory study on the load on support of long wall with top coal caving with great mining height in extra thick coal seam[J].Journal of China Coal Society,2009,34(5):590-593.
[4]张子飞,来兴平.复杂条件下急斜厚煤层高阶段综放开采超前预爆破[J].煤炭学报,2008,33(8):845-849.Zhang Zifei,Lai Xingping.Segment pre-blasting of sublevel caving of steep and thick coal seam under complex conditions[J].Journal of China Coal Society,2008,33(8):845-849.
[5]孔令海,姜福兴,刘杰,等.特厚煤层综放工作面区段煤柱合理宽度的微地震监测[J].煤炭学报,2009,34(7):871-874.Kong Linghai,Jiang Fuxing,Liu Jie,et al.High-precision microseis-mic monitoring system to reasonable width of segment coal pillar in extra-thick coal seam fully mechanized top-coal caving mining[J].Journal of China Coal Society,2009,34(7):871-874.
[6]付玉平,宋选民,邢平伟,等.大采高采场顶板断裂关键块稳定性分析[J].煤炭学报,2009,34(8):1027-1031.Fu Yuping,Song Xuanmin,Xing Pingwei,et al.Stability analysis on main roof key block in large mining height workface[J].Journal of China Coal Society,2009,34(8):1027-1031.
[7]闫少宏,尹希文.大采高综放开采几个理论问题的研究[J].煤炭学报,2008,33(5):481-484.Yan Shaohong,Yin Xiwen.Discussing about the main theoretical problems of long wall with top coal caving[J].Journal of China Coal Society,2008,33(5):481-484.
[8]刘全明,毛德兵,王永秀,等.中硬特厚煤层综放工作面合理参数确定研究[J].煤矿开采,2006,11(6):14-16.Liu Quanming,Mao Debing,Wang Yongxiu,et al.Reasonable pa-rameters confirmation of full-mechanized caving mining face in medi-um-hard and extremely thick coal seam[J].Coal Mining Technolo-gy,2006,11(6):14-16.
[9]王永秀,毛德兵,齐庆新.数值模拟中煤岩层物理力学参数确定的研究[J].煤炭学报,2003,28(6):593-597.Wang Yongxiu,Mao Debing,Qi Qingxin.Study on determining of the mechanical parameters of rock mass used in numerical simulation[J].Journal of China Coal Society,2003,28(6):593-597.
[10]宁宇.大采高综采煤壁片帮冒顶机理与控制技术[J].煤炭学报,2009,34(1):50-52.Ning Yu.Mechanism and control technique of the rib spalling in fully mechanized mining face with great mining height[J].Journal of China Coal Society,2009,34(1):50-52.
[11]杨科,谢广祥.采动裂隙分布及其演化特征的采厚效应[J].煤炭学报,2008,33(10):1092-1096.Yang Ke,Xie Guangxiang.Caving thickness effects on distribution and evolution characteristics of mining induced fracture[J].Journal of China Coal Society,2008,33(10):1092-1096.
[12]张日晨.神东矿区保德煤矿综放开采可行性研究[J].煤炭学报,2008,33(5):489-491.Zhang Richen.Feasibility study of long wall with top coal caving in Baode Coal Mine in Shendong mining area[J].Journal of China Coal Society,2008,33(5):489-491.
[13]毛德兵.综放支架支护强度与煤层采出厚度关系的研究[J].煤炭科学技术,2009,37(1):45-48.Mao Debing.Study on relative relationship between support strength of hydraulic powered caving support and thickness mined in seam[J].Coal Science and Technology,2009,37(1):45-48.
[14]毛德兵.综放开采割煤高度与顶煤采出率相互关系研究[J].煤矿开采,2009,14(4):13-15.Mao Debing.Research on relationship of mining height and recovery of top-coal in full-mechanized caving mining[J].Coal Mining Technology,2009,14(4):13-15.
[15]史元伟,宁宇,齐庆新.综采放顶煤工作面岩层控制与工艺参数优选[M].徐州:中国矿业大学出版社,2006:15-16.
[2]毛德兵.大采高综放开采及其在高瓦斯厚煤层中应用前景[A].采矿工程新论[C].北京:煤炭工业出版社,2005:84-89.
[3]闫少宏.特厚煤层大采高综放开采支架外载的理论研究[J].煤炭学报,2009,34(5):590-593.Yan Shaohong.Theory study on the load on support of long wall with top coal caving with great mining height in extra thick coal seam[J].Journal of China Coal Society,2009,34(5):590-593.
[4]张子飞,来兴平.复杂条件下急斜厚煤层高阶段综放开采超前预爆破[J].煤炭学报,2008,33(8):845-849.Zhang Zifei,Lai Xingping.Segment pre-blasting of sublevel caving of steep and thick coal seam under complex conditions[J].Journal of China Coal Society,2008,33(8):845-849.
[5]孔令海,姜福兴,刘杰,等.特厚煤层综放工作面区段煤柱合理宽度的微地震监测[J].煤炭学报,2009,34(7):871-874.Kong Linghai,Jiang Fuxing,Liu Jie,et al.High-precision microseis-mic monitoring system to reasonable width of segment coal pillar in extra-thick coal seam fully mechanized top-coal caving mining[J].Journal of China Coal Society,2009,34(7):871-874.
[6]付玉平,宋选民,邢平伟,等.大采高采场顶板断裂关键块稳定性分析[J].煤炭学报,2009,34(8):1027-1031.Fu Yuping,Song Xuanmin,Xing Pingwei,et al.Stability analysis on main roof key block in large mining height workface[J].Journal of China Coal Society,2009,34(8):1027-1031.
[7]闫少宏,尹希文.大采高综放开采几个理论问题的研究[J].煤炭学报,2008,33(5):481-484.Yan Shaohong,Yin Xiwen.Discussing about the main theoretical problems of long wall with top coal caving[J].Journal of China Coal Society,2008,33(5):481-484.
[8]刘全明,毛德兵,王永秀,等.中硬特厚煤层综放工作面合理参数确定研究[J].煤矿开采,2006,11(6):14-16.Liu Quanming,Mao Debing,Wang Yongxiu,et al.Reasonable pa-rameters confirmation of full-mechanized caving mining face in medi-um-hard and extremely thick coal seam[J].Coal Mining Technolo-gy,2006,11(6):14-16.
[9]王永秀,毛德兵,齐庆新.数值模拟中煤岩层物理力学参数确定的研究[J].煤炭学报,2003,28(6):593-597.Wang Yongxiu,Mao Debing,Qi Qingxin.Study on determining of the mechanical parameters of rock mass used in numerical simulation[J].Journal of China Coal Society,2003,28(6):593-597.
[10]宁宇.大采高综采煤壁片帮冒顶机理与控制技术[J].煤炭学报,2009,34(1):50-52.Ning Yu.Mechanism and control technique of the rib spalling in fully mechanized mining face with great mining height[J].Journal of China Coal Society,2009,34(1):50-52.
[11]杨科,谢广祥.采动裂隙分布及其演化特征的采厚效应[J].煤炭学报,2008,33(10):1092-1096.Yang Ke,Xie Guangxiang.Caving thickness effects on distribution and evolution characteristics of mining induced fracture[J].Journal of China Coal Society,2008,33(10):1092-1096.
[12]张日晨.神东矿区保德煤矿综放开采可行性研究[J].煤炭学报,2008,33(5):489-491.Zhang Richen.Feasibility study of long wall with top coal caving in Baode Coal Mine in Shendong mining area[J].Journal of China Coal Society,2008,33(5):489-491.
[13]毛德兵.综放支架支护强度与煤层采出厚度关系的研究[J].煤炭科学技术,2009,37(1):45-48.Mao Debing.Study on relative relationship between support strength of hydraulic powered caving support and thickness mined in seam[J].Coal Science and Technology,2009,37(1):45-48.
[14]毛德兵.综放开采割煤高度与顶煤采出率相互关系研究[J].煤矿开采,2009,14(4):13-15.Mao Debing.Research on relationship of mining height and recovery of top-coal in full-mechanized caving mining[J].Coal Mining Technology,2009,14(4):13-15.
[15]史元伟,宁宇,齐庆新.综采放顶煤工作面岩层控制与工艺参数优选[M].徐州:中国矿业大学出版社,2006:15-16.
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