深井硐室群下大巷煤柱旋转开采巷道控制研究

doi:10. 11799/ ce202505006

摘要/Abstract

摘要：

针对济宁矿业安居煤矿2317工作面近邻硐室群下大巷保护煤柱受多重扰动影响安全旋转开采问题，采用理论分析、数值模拟、现场监测等方法研究得出了旋转综采工作面矿压分布规律及影响范围为68m。研究结果表明：旋采中心区域采动应力集中与液压支架反复支撑三角弧形悬板，工作面近心端应力集中程度明显高于远心端；在采动影响下硐室群发生变形破坏，覆岩应力得到缓释，形成“采动应力缓释区”,对此提出并实施了旋采期间巷道“锚网索+W 钢护板”联合支护方案，超前巷道使用U型钢棚和单元支架进行加强支护。现场监测表明，该支护方案对旋转开采引起的矿压影响有较好的控制效果，工作面能够安全旋转开采。

关键词:

旋转开采 , 硐室群 , 三角弧形悬板 , 采动应力 , 支护方案

Abstract: Abstract: Aimed at the problem of safe rotary mining of protective coal pillars in the lower roadway of adjacent chamber group in 2317 working face of a Coal Mine in Jining affected by multiple disturbances. Employ theoretical analysis, numerical simulation and field monitoring, the distribution law and influence range of mine pressure in rotary fully mechanized mining face are 68 m. The research results show that: the mining stress concentration in the central area of rotary mining and the repeated support of triangular arc suspension plate by hydraulic support, the stress concentration at the near end of the working face is significantly higher than that at the far end; Under the influence of mining activities, the cave system experiences deformation and destruction, and the overburden stress is relieved, forming a ' mining stress release zone '. In this regard, a support scheme combining cable netting and W steel plates was proposed and implemented during the rotary mining process, the advance tunnel is reinforced with U-shaped steel sheds and unit supports. On-site monitoring showed that the support scheme had good control over the mining pressure caused by rotary mining, and the working face could be mined safely.

中图分类号:

TD353

鹿金龙, 宗琳琳, 李刚, 等.

深井硐室群下大巷煤柱旋转开采巷道控制研究 [J]. 煤炭工程, 2025, 57(5): 36-44.

参考文献

[1]王兆会, 孙文超, 水艳婷, 等.千米深井超长工作面采动应力旋转轨迹及其推进方向效应[J].煤炭学报, 2022, 47(2):634-650 [2]WANG Zhaohui, SUN Wenchao, SHUI Yanting, etc.Mining-induced stress rotation trace and its sensitivity to face advance direction in kilometer deep longwall panel with large face length[J].Journal of China Coal Society, 2022, 47(2):634-650 [3]卓庆奉, 杨波, 赵力, 等.不规则边角煤连续开采设计及回采实践[J].中国矿业, 2017, 26(2):117-121 [4]ZHUO Qingfeng, YANG Bo, ZHAO Li, etc.Continuous mining design and actual mining practice for irregular boundary coal[J].China Mining Magazine, 2017, 26(2):117-121 [5]李顺顺, 高召宁.综采工作面大角度旋转俯采技术研究[J].煤炭科学技术, 2019, 47(6):133-138 [6]LI Shunshun, GAO Zhaoning.Research on large angle rotary mining technology for fully-mechanized mining face[J].Coal Science and Technology, 2019, 47(6):133-138 [7]武越超, 韦志远, 谭英明, 等.空巷影响下回采巷道围岩稳定性及支护设计研究[J].煤炭科学技术, 2016, 44(5):128-132 [8]WU Yuechao, WEI Zhiyuan, TAN Yingming, et al.Study on surrounding rock stability and support design of mining gateway under influences of abandoned roadways[J].Coal Science and Technology, 2016, 44(5):128-139 [9] 屠世浩, 郝明奎, 谢耀社.孤岛煤柱综采工作面旋转开采关键技术[J].中国矿业大学学报, 2004(5):30-33.[J].中国矿业大学学报, 2004, 5(1):30-33 [10]TU Shihao, HAO Mingkui, XIE Yaoshe.Key technique on revolving mining in gob-surrounded pillar with fully mechanized mining[J]. Journal of China University of Mining & Technology, 2004(5):30-33.[J].Journal of China University of Mining & Technology, 2004, 5(1):30-33 [11]曾得国, 王惠风.综放面边界三角煤旋转开采技术研究[J].煤炭工程, 2016, 48(S1):8-11 [12]ZENG Deguo, WANG Huifeng.Research on rotation mining of triangle coal in the boundary of fully-mechanized top coal caving face[J].Coal Engineering, 2016, 48(S1):8-11 [13]苏学贵, 宋选民, 原鸿鹄, 等.受上覆采空区影响的巷道群稳定性控制研究[J].采矿与安全工程学报, 2016, 33(3):415-422 [14]SU Xuegui, SONG Xuanming, YUAN Honghu, etc.Stability control of the roadway group under the influence of overlying goaf[J].Journal of Mining & Safety Engineering, 2016, 33(3):415-422 [15]吕鹏飞, 张显荣, 邱林, 等.尖角煤柱影响下旋采面冲击地压危险分析与防治[J].中国安全科学学报, 2020, 30(8):158-163 [16]LYU Pengfei, ZHANG Xianrong, QIU Lin, etc.Rock burst risk analysis and prevention in rotary working face under influence of sharp corner coal pillar[J].China Safety Science Journal, 2020, 30(8):158-163 [17]陈法兵, 毛德兵, 蓝航, 等.不规则煤柱影响下旋采工作面冲击地压防治技术[J].煤炭科学技术, 2012, 40(2):8-11 [18]CHEN Fabing, MAO Debing, LAN Hang, etc.Mine pressure bumping prevention and control technology of revolving mining face under influences of irregular coal pillar[J].Coal Science and Technology, 2012, 40(2):8-11 [19]杨路林, 刘倩, 史晨昊.虚心旋转综放工作面矿压分布特征分析[J].煤炭科学技术, 2022, 50(11):48-57 [20]YANG Lulin, LIU Qian, SHI Chenhao.Analysis on the distribution characteristics of underground pressure in the fullymechanized caving face with uncertain center rotation[J].Coal Science and Technology, 2022, 50(11):48-57 [21] 陆伟.复杂工程地质条件大倾角厚煤层采场围岩控制机理研究[D].淮南:安徽理工大学, 2015. [22]LU Wei.Study on control mechanism in surrounding rock of stope in large inclined angle coal thick seam under complex engineering conditions[D].Huainan:AnHui University of Science and Technology, 2015. [23]杨科, 陆伟, 潘桂如, 等.复杂条件大倾角大采高旋转综采矿压显现规律及其控制[J].采矿与安全工程学报, 2015, 32(2):199-205 [24]YANG Ke, LU Wei, PAN Guiru, etc.Investigation into strata behaviours and ground control of high height rotary longwall mining in large inclined angle coal seam under complicated geological conditions[J].Journal of Mining & Safety Engineering, 2015, 32(2):199-205 [25]李亮, 马庆, 王辉, 等.综放工作面转采方案设计及矿压显现特征研究[J].矿业研究与开发, 2018, 38(5):56-60 [26]LI Liang, MA Qing, WANG Hui, etc.Study on the characteristics of pressure occurrence and the design of transfer schemes at fully mechanized caving face[J].Mining R & D, 2018, 38(5):56-60 [27]李亮, 马庆, 李亚春, 等.综放工作面旋转开采可行性分析及转采方法[J].煤矿安全, 2018, 49(7):126-129 [28]LI Liang, MA Qing, LI Yachun, etc.Feasibility analysis of rotating mining in fully mechanized caving face and rotating methods[J].Safety in Coal Mines, 2018, 49(7):126-129 [29]彭林军, 宋振骐, 周光华, 等.大采高综放动压巷道窄煤柱沿空掘巷围岩控制[J].煤炭科学技术, 2021, 49(10):34-43 [30]PENG Linjun, SONG Zhenqi, ZHOU Guanghua, et al.Surrounding rock control on narrow coal pillar along gob in dynamic pressure roadway with large mining height top coal caving[J].Coal Science and Technology, 2021, 49(10):34-43 [31]刘海胜.综采工作面端头顶板大面积悬顶致灾机理与控制方法[J].煤炭技术, 2021, 40(3):103-106 [32]LIU Haisheng.Disaster mechanism and control method of large area suspended roof of top plate in fully mechanized face[J].Coal Technology, 2021, 40(3):103-106 [33]张洪鹏.岱庄煤矿旋转调斜开采工作面顶板运动监测分析[J].中国矿业, 2013, 22(6):75-77 [34]ZHANG Hongpeng.Analysis on roof movement behavior workface during rotational adjustment in Daizhuang mine[J].China mining magazine, 2013, 22(6):75-77 [35]刘洪磊, 杨天鸿, 张鹏海, 等.复杂地质条件下煤层顶板“-”型破断及矿压显现规律[J].采矿与安全工程学报, 2015, 32(5):793-800 [36]LIU Honglei, YANG Tianming, Zhang Penghai, etc.O-X” failure pattern of roof and strata-pressure behavior under complex geological conditions[J].Journal of Mining & Safety Engineering, 2015, 32(5):793-800 [37]卢恒, 张传宝, 仵振华, 等.综放工作面过空巷矿压显现规律及控制技术研究[J].采矿与岩层控制工程学报, 2022, 4(6):47-59 [38]LU Huan, ZHANG Chuanbao, WU Zhenhua, etc.Study on ground pressure and control technology of a fully mechanized top coal caving longwall face passing a pre-driven roadway[J].Journal of Mining and Strata Control Engineering, 2022, 4(6):47-59 [39]刘金海, 姜福兴, 朱斯陶.长壁采场动、静支承压力演化规律及应用研究[J].岩石力学与工程学报, 2015, 34(9):1815-1827 [40]LIU Jinhai, JIANG Fuxing, ZHU Sitao.Study of dynamic and static abutment pressure around longwall face and its application[J].Chinese Journal of Rock Mechanics and Engineering, 2015, 34(9):1815-1827