大水垂比地面定向水平孔煤层底板注浆防治水技术
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摘要
地面定向水平孔煤层底板预注浆防治水技术已经成为矿井煤层底板水害防治主要方法之一,利用地面定向水平孔可对煤层底板含水层进行超前探查和注浆治理。根据赵固一矿18031工作面地层条件,介绍了地面定向水平孔煤层底板超前注浆防治水技术方案,包括钻孔布置、钻孔轨迹和钻孔结构,同时根据现场情况,研究了深厚表土层大口径大倾角钻孔定向钻进技术、大顶角钻孔大口径套管下放技术、大水垂比长距离水平钻孔钻进技术、水平段顺层钻进和岩层判别技术,成功实现了钻孔水平段沿煤层底板灰岩钻进,并对18031工作面底板灰岩进行探查和注浆治理,验证了地面定向水平孔煤层底板注浆防治水技术的可行性。
Ground orientation horizontal hole coal seam floor pre-grouting prevention and control technology has become one of the main methods for prevention and control of coal seam floor water damage.Using ground directional horizontal hole,we can carry out advanced exploration and grouting control for coal seam floor aquifer. According to the formation conditions of the No. 18031 working face of Zhaogu Mine,this paper introduces the technical scheme of prevention and control of water for surface directional horizontal hole coal seam floor grouting,including drilling layout,drilling trajectory and drilling structure.The technology of pipe laying,large water vertical ratio and horizontal drilling,horizontal section drilling and the vertical ratio of water sag reached 2.39.Increase the utilization of drilling and explored the limestone of the floor of No.18031 working face.And grouting control can provide references for further promotion of ground directional horizontal holes in water control of coal seam floor.The feasibility of coal seam floor grounting technology with ground oriented horizonal hole is verified.
Ground orientation horizontal hole coal seam floor pre-grouting prevention and control technology has become one of the main methods for prevention and control of coal seam floor water damage.Using ground directional horizontal hole,we can carry out advanced exploration and grouting control for coal seam floor aquifer. According to the formation conditions of the No. 18031 working face of Zhaogu Mine,this paper introduces the technical scheme of prevention and control of water for surface directional horizontal hole coal seam floor grouting,including drilling layout,drilling trajectory and drilling structure.The technology of pipe laying,large water vertical ratio and horizontal drilling,horizontal section drilling and the vertical ratio of water sag reached 2.39.Increase the utilization of drilling and explored the limestone of the floor of No.18031 working face.And grouting control can provide references for further promotion of ground directional horizontal holes in water control of coal seam floor.The feasibility of coal seam floor grounting technology with ground oriented horizonal hole is verified.
引文
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[11]李文龙.厚煤层小煤柱护巷及支护技术研究[J].煤炭科学技术,2017,45(8):147-152.LI Wenlong.Study on protection and support technology of small coal pillar in thick coal seam[J]. Coal Science and Technology,2017,45(8):147-152.
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[13]管恩太.突水系数与煤矿水害防治[J].煤炭工程,2011(1):46-47.GUAN Entai.Water inrush coefficient and flooding prevention and cure in coal mines[J].Coal Engineering,2011(1):46-47.
[14]倪建明.淮北矿区巨厚火成岩下隔离注浆充填减灾机理研究[J].煤炭科学技术,2017,45(8):55-59.Ni Jianming. Study on mechanism of disaster reduction under extremely-thickigneous rock by isolated grouting in Huaibei Mining Area[J].Coal Science and Technology,2017,45(8):55-59.
[15]李长青,方俊,李泉新,等.煤层底板超前注浆加固定向钻孔注浆工艺技术[J].煤田地质与勘探,2014,42(4):59-63.LI Changqing,FANG Jun,LI Quanxin,et al.The grouting technology of directional borehole for pre-grouting reinforcement in coal floor[J].Coal Geology and Exploration,2014,42(4):59-63.
[16]姜文浩.底板含水层注浆改造技术在赵固一矿的应用及日常管理[J].价值工程,2014(31):119-120.JIANG Wenhao. Application and daily management of grouting technology for floor aquifer in Zhaogu No.1 Mine[J].Value Engineering,2014(31):119-120.
[17]安许良.L型钻孔地面预注浆技术在煤矿井下巷道加固工程中的应用[J].煤矿开采,2014,19(1):56-59.AN Xuliang.Application of surface pre-grouting with L-style drillhole in underground roadway reinforcement engineering[J]. Coal Ming Technology,2014,19(1):56-59.
[18]王永政.薄弱泥岩顶板厚煤层马头门围岩失稳分析及加固技术[J].煤炭科学技术,2017,45(8):134-141.WANG Yongzheng. Instability analysis and reinforcement technology of ingate in thin and weakmudstone roof and thick coal seam[J].Coal Science and Technology,2017,45(8):134-141.
[19]李长青,安许良,孙晓宇.地面定向水平孔煤层底板超前注浆防治水技术研究[J].煤矿工程,2017,49(9):19-22.LI Changqing,AN Xuliang,SUN Xiaoyu. Study on advance grouting in coal floor with ground directional horizontal hole for water hazard control[J].Coal Engineering,2017,49(9):19-22.
[20]孙晓宇,安许良.基于L型钻孔巨厚冲积层薄基岩煤层底板加固技术[J].煤炭科学技术,2017,45(10):48-53.SUN Xiaoyu,AN Xuliang. Technology of thick alluvium and thin bedrock coal seam floor reinforcement based on L type drilling construction[J].Coal Science and Technology,2017,45(10):48-53.
[21]袁辉,邓昀,蒲朝阳,等.L型地面钻孔注浆技术在矿井水害防治中的应用[J].煤炭科学技术,2017,45(4):171-175.YUAN Hui,DENG Yun,PU Chaoyang,et al. Grouting technology of L type surface borehole applied to water disaster prevention of in mine[J]. Coal Science and Technology,2017,45(4):171-175.
[2]冯新顶,侯争,牛会娟.浅谈焦煤集团赵固一矿的水害防治[J].陕西煤炭,2013(4):46-47.FENG Xinding,HOU Zheng,NIU Huijuan. Prevention and control of water damage in Zhaogu No. 1 Mine of coking coal group[J].Shaanxi Coal,2013(4):46-47.
[3]岳拥军,白云来,贾安立,等.底板注浆加固技术在高水压工作面的应用[J].现代矿业,2010(10):110-113.YUE Yongjun,BAI Yunlai,JIA Anli,et al. Application of floor grouting reinforcement technology in high water pressure working face[J].Modern Mining,2010(10):110-113.
[4]管恩太.焦作矿区高承压水上采煤水害综合控制技术[J].煤矿安全,2005,36(9):15-17.GUAN Entai. Comprehensive control technology for mining water damage on high confined water in Jiaozuo mining area[J]. Safety in Coal Mines,2005,36(9):15-17.
[5]许延春,陈新明,姚依林.高水压突水危险工作面防治水关键技术研究[J].煤炭科学技术,2012,40(9):99-103.XU Yanchun,CHEN Xinming,YAO Yilin.Key technology of water prevention and control for coal mining face with high water pressure water inrush dangers[J]. Coal Science and Technology,2012,40(9):99-103.
[6]董书宁,刘其声.华北型煤田中奥陶系灰岩顶部相对隔水段研究[J].煤炭学报,2009,34(3):289-292.DONG Shuning,LIU Qisheng.Study on relative aguiclude existed in mid-Ordovician limestone top in North China coal field[J].Journal of China Coal Society,2009,34(3):289-292.
[7]白玉杰.煤矿水害原因分析及防治技术[J].煤炭技术,2009,28(11):85-88.BAI Yujie.Causes analysis and control technology of water disaster in coal mine[J].Coal Technology,2009,28(11):85-88.
[8]王作宇,刘鸿泉,王培彝,等.承压水上采煤学科理论与实践[J].煤炭学报,1994,19(2):40-47.WANG Zuoyu,LIU Hongquan,WANG Peiyi,et al. Coal mining over confined aquifer and the discipline theory and practice[J].Journal of China Coal Society,1994,19(2):40-47.
[9]赵庆彪.华北型煤田深部开采底板突水机理与区域治理关键技术[C]//第十届全国采矿学术会议论文集.北京:煤炭工业出版社,2015:11.
[10]赵庆彪.奥灰岩溶水害区域超前治理技术研究及应用[J].煤炭学报,2014,39(6):1112-1117.ZHAO Qingbiao.Ordovician limestone karst water disaster regional advanced governance technology study and application[J].Journal of China Coal Society,2014,39(6):1112-1117.
[11]李文龙.厚煤层小煤柱护巷及支护技术研究[J].煤炭科学技术,2017,45(8):147-152.LI Wenlong.Study on protection and support technology of small coal pillar in thick coal seam[J]. Coal Science and Technology,2017,45(8):147-152.
[12]许延春,古文哲,曹旭初,等.赵固一矿底板灰岩含水层采动影响研究[J].煤炭工程,2015,48(6):92-94.XU Yanchun,GU Wenzhe,CAO Xuchu,et al.Study of mining influence on floor limestone aquifers in Zhaogu No.1 Mine[J].Coal Engineering,2015,48(6):92-94.
[13]管恩太.突水系数与煤矿水害防治[J].煤炭工程,2011(1):46-47.GUAN Entai.Water inrush coefficient and flooding prevention and cure in coal mines[J].Coal Engineering,2011(1):46-47.
[14]倪建明.淮北矿区巨厚火成岩下隔离注浆充填减灾机理研究[J].煤炭科学技术,2017,45(8):55-59.Ni Jianming. Study on mechanism of disaster reduction under extremely-thickigneous rock by isolated grouting in Huaibei Mining Area[J].Coal Science and Technology,2017,45(8):55-59.
[15]李长青,方俊,李泉新,等.煤层底板超前注浆加固定向钻孔注浆工艺技术[J].煤田地质与勘探,2014,42(4):59-63.LI Changqing,FANG Jun,LI Quanxin,et al.The grouting technology of directional borehole for pre-grouting reinforcement in coal floor[J].Coal Geology and Exploration,2014,42(4):59-63.
[16]姜文浩.底板含水层注浆改造技术在赵固一矿的应用及日常管理[J].价值工程,2014(31):119-120.JIANG Wenhao. Application and daily management of grouting technology for floor aquifer in Zhaogu No.1 Mine[J].Value Engineering,2014(31):119-120.
[17]安许良.L型钻孔地面预注浆技术在煤矿井下巷道加固工程中的应用[J].煤矿开采,2014,19(1):56-59.AN Xuliang.Application of surface pre-grouting with L-style drillhole in underground roadway reinforcement engineering[J]. Coal Ming Technology,2014,19(1):56-59.
[18]王永政.薄弱泥岩顶板厚煤层马头门围岩失稳分析及加固技术[J].煤炭科学技术,2017,45(8):134-141.WANG Yongzheng. Instability analysis and reinforcement technology of ingate in thin and weakmudstone roof and thick coal seam[J].Coal Science and Technology,2017,45(8):134-141.
[19]李长青,安许良,孙晓宇.地面定向水平孔煤层底板超前注浆防治水技术研究[J].煤矿工程,2017,49(9):19-22.LI Changqing,AN Xuliang,SUN Xiaoyu. Study on advance grouting in coal floor with ground directional horizontal hole for water hazard control[J].Coal Engineering,2017,49(9):19-22.
[20]孙晓宇,安许良.基于L型钻孔巨厚冲积层薄基岩煤层底板加固技术[J].煤炭科学技术,2017,45(10):48-53.SUN Xiaoyu,AN Xuliang. Technology of thick alluvium and thin bedrock coal seam floor reinforcement based on L type drilling construction[J].Coal Science and Technology,2017,45(10):48-53.
[21]袁辉,邓昀,蒲朝阳,等.L型地面钻孔注浆技术在矿井水害防治中的应用[J].煤炭科学技术,2017,45(4):171-175.YUAN Hui,DENG Yun,PU Chaoyang,et al. Grouting technology of L type surface borehole applied to water disaster prevention of in mine[J]. Coal Science and Technology,2017,45(4):171-175.