深孔爆破在深井坚硬复合顶板沿空留巷强制放顶中的应用

摘要
图/表
参考文献
相关文章 (15)

全文: PDF (5453 KB) HTML (1 KB)
输出: BibTeX | EndNote (RIS)

摘要为防止深井坚硬顶板沿空留巷的充填墙体在顶板垮落时被压坏，特采取深孔爆破强制放顶来释放顶板压力以提高沿空留巷的护巷效果。通过数值模拟和理论分析的方法，阐述深孔爆破强制放顶的卸压机制。炸药在坚硬岩体中爆破，爆破孔周边的岩体受爆轰应力波作用产生大量裂隙并发生大幅度位移，使爆破孔周围的应力重新分布，厚层顶板垮落，降低了巷旁充填墙体的附加载荷，从而起到护巷作用。最后，在潘一矿东区1252(1)工作面进行超前深孔爆破强制放顶的现场应用，在经历工作面回采和充填留巷稳定阶段后，墙体整体维护效果良好，对类似条件下沿空留巷强制放顶具有很好的借鉴意义。

	服务

	把本文推荐给朋友
	加入我的书架
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章

关键词 ：采矿工程, 深孔爆破, 深井, 坚硬复合顶板, 沿空留巷, 强制放顶

Abstract：In order to prevent the filling wall along gob-side entry retaining being crushed when roof caves in deep well，the deep borehole blasting forced roof caving was taken to release the roof pressure and improve the supporting roadway gob-side entry retaining effect. The pressure relief mechanism of deep borehole blasting to forced roof caving was expounded by numerical simulation and theoretical analysis method. After dynamite blasting in hard rock，the surrounding rock of blasting boreholes produces a large number of fissures and the significant displacement by the explosion stress waves；and stresses were redistributed. So the additional load of filling body and the deformation of the surrounding rock were reduced which play the role of supporting roadway. Finally，in the working face 1252(1) of eastern area of Panyi coal mine，the deep borehole blasting was applied to forced roof caving field test；and the filling wall kept stable after mining. It provides a good reference for gob-side entry retaining under similar conditions.

Key words： mining engineering deep borehole blasting deep well hard and compound roof gob-side entry retaining forced roof caving

收稿日期: 2013-01-24

引用本文:

高魁1，刘泽功1，2，刘健1，2，邓东生3，高新亚4，康亚1，黄凯峰1. 深孔爆破在深井坚硬复合顶板沿空留巷强制放顶中的应用[J]. 岩石力学与工程学报, 2013, 32(8): 1588-1594.
GAO Kui1，LIU Zegong1，2，LIU Jian1，2，DENG Dongsheng3，GAO Xinya4，KANG Ya1，HUANG Kaifeng1. APPLICATION OF DEEP BOREHOLE BLASTING TO GOB-SIDE ENTRY RETAINING FORCED ROOF CAVING IN HARD AND COMPOUND ROOF DEEP WELL. , 2013, 32(8): 1588-1594.

链接本文:

http://www.rockmech.org/CN/Y2013/V32/I8/1588

[11]	高魁，刘泽功，刘健，等. 石门揭构造软煤消突与快速成巷技术研究[J]. 煤炭科学技术，2012，40(11)：66-68.(GAO Kui，LIU Zegong，LIU Jian，et al. Study on outburst elimination and rapid mine roadway construction technology during cross-cut opened structure soft coal[J]. Coal Science and Technology，2012，40(11)：66-68.(in Chinese))
[18]	张杰. 南梁厚土层浅埋单体长壁工作面矿压规律实测分析[J]. 湖南科技大学学报，2007，22(4)：6-10.(ZHANG Jie. Analysis of weighting law of individual jacks long-wall face in Nanliang shallow seam covered with thick soil[J]. Journal of Hunan University of Science and Technology，2007，22(4)：6-10.(in Chinese)) " target="_blank">
[1]	华心祝，马俊枫，许庭教. 锚杆支护巷道巷旁锚索加强支护沿空留巷围岩控制机制研究及应用[J]. 岩石力学与工程学报，2005，24(12)：2 107-2 112.(HUA Xinzhu，MA Junfeng，XU Tingjiao. Study on controlling mechanism of surrounding rocks of gob-side entry with combination of roadside reinforced cable supporting and roadway bolt supporting，and its application[J]. Chinese Journal of Rock Mechanics and Engineering，2005，24(12)：2 107-2 112.(in Chinese)) " target="_blank">
[3]	刘增辉，高谦，华心祝，等. 沿空掘巷围岩控制的时效特征[J].采矿与安全工程学报，2009，26(4)：465-469.(LIU Zenghui，GAO Qian，HUA Xinzhu，et al. Aging characteristics of wall rock control in roadway driving along goaf[J]. Journal of Mining and Safety Engineering，2009，26(4)：465-469.(in Chinese)) " target="_blank">
[4]	刘健，刘泽功，石必明. 低透气性突出煤层巷道快速掘进的试验研究[J]. 煤炭学报，2007，32(8)：827-831.(LIU Jian，LIU Zegong，SHI Biming. Study on the roadway excavation rapidly in the low permeability outburst coal seam[J]. Journal of China Coal Society，2007，32(8)：827-831.(in Chinese))
[8]	龚敏，张凤舞，文斌，等. 煤巷底板岩石爆破提高瓦斯抽放率的应用与数值模拟[J]. 煤炭学报，2012，37(6)：972-977.(GONG Min，ZHANG Fengwu，WEN Bin，et al. Numerical simulation and application on blasting to improve gas drainage rate in floor rock of coal roadway[J]. Journal of China Coal Society，2012，37(6)：972-977. (in Chinese))
[12]	张杰. 浅埋煤层顶板深孔预爆强制初放研究[J]. 采矿与安全工程学报，2012，29(3)：339-343.(ZHANG Jie. Study on forced roof caving to hard roof by deep-hole pre-blasting in shallow coal seam[J]. Journal of Mining and Safety Engineering，2012，29(3)：339-343. (in Chinese))
[15]	刘洋，党西峰，吕文宏. 浅埋煤层开采顶板移动规律及强制放顶技术[J]. 煤炭科学技术，2008，36(10)：5-9.(LIU Yang，DANG Xifeng，LU Wenhong. Roof displacement law and enforced roof caving technology for coal mining in seam with shallow depth[J]. Coal Science and Technology，2008，36(10)：5-9.(in Chinese)) " target="_blank">
[16]	闫志忠. 薄煤层综采工作面坚硬顶板强制放顶技术实践[J]. 北京工业职业技术学院学报，2012，11(1)：25-28.(YAN Zhizhong. Practice of compulsive roof cave-in technology used in hard roof for fully mechanized coal mining face[J]. Journal of Beijing Polytechnic College，2012，11(1)：25-28.(in Chinese)) " target="_blank">
[7]	林柏泉. 深孔控制卸压爆破及其防突作用机制的实验研究[J]. 阜新矿业学院：自然科学版，1995，14(3)：16-21.(LIN Baiquan. The research on outburst preventive mechanism of controlling stress relaxation blast in deep borehole of coal tunnel[J]. Journal of Fuxin Mining Institute：Natural Science，1995，14(3)：16-21.(in Chinese)) " target="_blank">
[2]	王卫军，冯涛，侯朝炯，等. 沿空掘巷实体煤帮应力分布与围岩损伤关系分析[J]. 岩石力学与工程学报，2002，21(11)：1 590-1 593. (WANG Weijun，FENG Tao，HOU Chaojiong，et al. Analysis of the relationship between stress distribution on integrated coal beside roadway driving along next goal and damage of surrounding rocks[J]. Chinese Journal of Rock Mechanics and Engineering，2002，21(11)：1 590-1 593.(in Chinese)) " target="_blank">
[5]	张春华，刘泽功，徐涛，等. 石门对掘揭开急倾斜煤层突出与爆破增透消突技术[J]. 煤炭学报，2010，35(1)：85-88.(ZHANG Chunhua，LIU Zegong，XU Tao，et al. Coal and gas outburst in steep inclined coal seam uncovered by two reverse drifts and technology of outburst elimination by increasing permeability with blasting[J]. Journal of China Coal Society，2010，35(1)：85-88.(in Chinese))
[9]	龚敏，刘万波，王德胜，等. 提高煤矿瓦斯抽放效果的控制爆破技术[J]. 北京科技大学学报，2006，28(3)：223-226.(GONG Min，LIU Wanbo，WANG Desheng，et al. Control blasting technique to improve gas predrainage effect in a coal mine[J]. Journal of University of Science and Technology Beijing，2006，28(3)：223-226.(in Chinese)) " target="_blank">
[10]	龚敏，熊本良，王楚翰，等. 穿层爆破各煤层动态应力分布与抽放效果探讨[J]. 岩石力学与工程学报，2012，31(1)：2 899-2 996. (GONG Min，XIONG Benliang，WANG Chuhan，et al. Discussion on distribution of dynamic stress and gas draining efficiency in coal seams by blasting through layers of coal-rock[J]. Chinese Journal of Rock Mechanics and Engineering，2012，31(1)：2 899-2 996.(in Chinese)) " target="_blank">
[13]	郝福坤，周同学，姜玉超. 人工强制放顶沿空留巷技术及其应用[J].煤炭科学技术，2006，34(2)：16-24.(HAO Fukun，ZHOU Tongxue，JIANG Yuchao. Forced roof caving technology and application to goaf side entry retaining[J]. Coal Science and Technology，2006，34(2)：16-24.(in Chinese)) " target="_blank">
[17]	钱鸣高，缪协兴，许家林. 岩层控制中的关键层理论研究[J]. 煤炭学报，1996，21(3)：225-230.(QIAN Minggao，MIAO Xiexing，XU Jialin. Theoretical study of key strata in ground control[J]. Journal of China Coal Society，1996，21(3)：225-230.(in Chinese)) " target="_blank">
[6]	刘健，刘泽功. 深孔预裂爆破技术在井筒揭煤中的应用研究[J].煤炭科学技术，2012，40(2)：19-24.(LIU Jian，LIU Zegong. Study on application of deep borehole pre-fracturing blasting technology to seam opening in mine shaft[J]. Coal Science and Technology，2012，40(2)：19-24.(in Chinese))
[14]	杨相海，张杰，余学义. 强制放顶爆破参数研究[J]. 西安科技大学学报，2010，30(3)：287-290.(YANG Xianghai，ZHANG Jie，YU Xueyi. Blasting parameter of compulsive roof cave-in[J]. Journal of Xi?an University of Science and Technology，2010，30(3)：287-290.(in Chinese)) " target="_blank">