动水大通道突水灾害治理关键技术
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摘要
针对动水大通道及地面无法施工直孔的治理技术难题,以潘二煤矿特大隐伏陷落柱突水灾害快速治理工程为例,在分析突水水文地质条件的基础上,提出了采用定向分支斜钻孔同时对过水巷道截流和突水通道堵源的治理方案。根据以往直孔堵水经验,确立了水力射流骨料灌注工艺和分序分段高压注浆工艺,并给出了骨料灌注关键技术和高压注浆结束标准。根据钻探注浆特征分析,结合淮南矿区陷落柱发育基本条件,推测了导水通道形态特征。注浆堵水结果表明:突水点残余涌水量为0,奥灰水位恢复良好,堵水率100%;堵源分支钻孔单位吸水率均小于0.1 Lu,堵源效果良好,彻底切断了奥灰水与突水点之间的水力联系。
According to the technical problems that hydrodynamic large channel water inrush disaster control can't construct straight hole in the ground. Taking a large inrush disaster controlling engineering from Paner coal mine as an example,based on the analyses of hydrogeology condition of water inrush,the controlling project to carry out blocking source and closure simultaneously by directional branch oblique hole is presented.According to the past experience of water plugging by straight hole,hydraulic jet aggregate perfusion process and high pressure grouting process are established,and key technology of aggregate perfusion and ending high pressure grouting standard are given. According to the characteristics of drilling and grouting,the conductor morphological characteristics are speculated combined with the basic condition of collapse column development in Huainan mining area. The results of grouting water plugging indicate that the residual inflow of the water inrush point is zero and the Ordovician limestone water level gets good recovery. It means the water plugging rate is100%. The unit water absorption of branch holes of blocking source all are less than 0.1 Lu,which means blocking source gets good effect and the water connection between the Ordovician limestone water and the water inrush point is cut off completely.
According to the technical problems that hydrodynamic large channel water inrush disaster control can't construct straight hole in the ground. Taking a large inrush disaster controlling engineering from Paner coal mine as an example,based on the analyses of hydrogeology condition of water inrush,the controlling project to carry out blocking source and closure simultaneously by directional branch oblique hole is presented.According to the past experience of water plugging by straight hole,hydraulic jet aggregate perfusion process and high pressure grouting process are established,and key technology of aggregate perfusion and ending high pressure grouting standard are given. According to the characteristics of drilling and grouting,the conductor morphological characteristics are speculated combined with the basic condition of collapse column development in Huainan mining area. The results of grouting water plugging indicate that the residual inflow of the water inrush point is zero and the Ordovician limestone water level gets good recovery. It means the water plugging rate is100%. The unit water absorption of branch holes of blocking source all are less than 0.1 Lu,which means blocking source gets good effect and the water connection between the Ordovician limestone water and the water inrush point is cut off completely.
引文
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[15]张茂林,尹尚先.华北型煤田陷落柱形成过程研究[J].煤田地质与勘探,2007,35(6):26-29.ZHANG Maolin,YIN Shangxian Forming process of subsided column in coalfields of North China[J].Coal Geology&Exploration,2007,35(6):26-29.
[16]尹尚先,武强,王尚旭.华北煤矿区岩溶陷落柱特征及成因探讨[J].岩石力学与工程学报,2004,23(1):120-123.YIN shangxian,WU Qiang,WANG Shangxu.Studies of characters and forming mechanism of karstic collapse columns at mine area of north china[J].Chinese Journal of Rock Mechanics and Engineering,2004,23(1):120-123.
[17]刘再斌,南生辉,郭晓山,等.陷落柱治理注浆工程效果检查技术[J].煤炭工程,2008(6):59-61.LIU Zaibin,NAN Shenghui,GUO Xiaoshan,et al.Grouting effect checking technique of collapse column control[J].Coal Engineering,2008(6):59-61.
[18]康红普,冯志强.煤矿巷道围岩注浆加固技术的现状与发展趋势[J].煤矿开采,2013,18(3):1-7.KANG Hongpu,FENG Zhiqiang.Status and development tendency of roadway grouting reinforcement technology in coal mine[J].Coal mining Technology,2013,18(3):1-7.
[19]中华人民共和国水利部.SL31-2003水利水电工程钻孔压水试验规程[S].北京:中国水利水电出版社,2003.
[2]朱际维.河北开滦矿务局范各庄矿奥灰岩溶陷落柱特大突水灾害及治理[C]//岩石工程事故与灾害实录(第一册).北京:中国建筑工业出版社,1994:83-102.
[3]南生辉.神华乌海能源有限责任公司骆驼山煤矿透水点注浆封堵工程竣工报告[R].西安:中煤科工集团西安研究院有限公司,2010:24-25.
[4]戴国权.动水巷道堵水技术[M].北京:煤炭工业出版社,1987.
[5]朱明诚.动水大通道突水钻孔控制注浆高效封堵关键技术及装备[J].煤田地质与勘探,2015,43(4):55-58.ZHU Mingcheng.Key technology and equipment of borehole-controlled grouting for highly effective plugging large channel of water inrush[J].Coal Geology&Exploration,2015,43(4):55-58.
[6]朱明诚.钻孔控制注浆技术在过水大通道封堵中的应用[J].中国煤炭地质,2015,27(5):46-49.ZHU Mingcheng.Application of controlled borehole grouting technology in large water channel plugging[J].Coal Geology of China,2015,27(5):46-49.
[7]杨志斌.斯列萨列夫公式在矿井水害防治中的应用分析[J].煤矿安全,2016,47(9):190-193.YANG Zhibin.Application analysis of cлесаревformula in mine water hazard prevention[J].Safety in Coal Mines,2016,47(9):190-193.
[8]熊潇.基于ABAQUS的斯列萨列夫断层防水煤柱公式适用性分析[D].合肥:合肥工业大学,2013,12-24.
[9]郑士田,马培智.陷落柱中“止水塞”的快速建立技术[J].煤田地质与勘探,1998,26(3):51-53.ZHENG Shitian,MA Peizhi.The technique building“concrete plug”quickly in collapse column[J].Coal Geology&Exploration,1998,26(3):51-53.
[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]靳德武.我国煤矿水害防治技术新进展及其方法论思考[J].煤炭科学技术,2017,45(5):141-147.JIN Dewu.New development of water disaster prevention and control technology in China coal mine and consideration on methodology[J].Coal Science and Technology,2017,45(5):141-147.
[12]国家安全生产监督管理总局,国家煤矿安全监察局.煤矿防治水规定[M].北京:煤炭工业出版社,2009.
[13]南生辉,将勤明,郭晓山,等.导水岩溶陷落柱堵水塞建造技术[J].煤田地质与勘探,2008,36(4):29-33.NAN Shenghui,JIANG Qinming,GUO Xiaoshan,et al.Construction technique of groundwater-preventing piston in Karst flow collapse column[J].Coal Geology&Exploration,2008,36(4):29-33.
[14]赵庆彪,毕超,虎维岳,等.裂隙含水层水平孔注浆“三时段”浆液扩散机理研究及应用[J].煤炭学报,2016,41(5):1212-1218.ZHAO Qingbiao,BI Chao,HU Weiyue,et al.Study and application of three-stage seriflux diffusion mechanism in the fissure of aquifer with horizontal injection hole[J].Journal of China Coal Society,2016,41(5):1212-1218.
[15]张茂林,尹尚先.华北型煤田陷落柱形成过程研究[J].煤田地质与勘探,2007,35(6):26-29.ZHANG Maolin,YIN Shangxian Forming process of subsided column in coalfields of North China[J].Coal Geology&Exploration,2007,35(6):26-29.
[16]尹尚先,武强,王尚旭.华北煤矿区岩溶陷落柱特征及成因探讨[J].岩石力学与工程学报,2004,23(1):120-123.YIN shangxian,WU Qiang,WANG Shangxu.Studies of characters and forming mechanism of karstic collapse columns at mine area of north china[J].Chinese Journal of Rock Mechanics and Engineering,2004,23(1):120-123.
[17]刘再斌,南生辉,郭晓山,等.陷落柱治理注浆工程效果检查技术[J].煤炭工程,2008(6):59-61.LIU Zaibin,NAN Shenghui,GUO Xiaoshan,et al.Grouting effect checking technique of collapse column control[J].Coal Engineering,2008(6):59-61.
[18]康红普,冯志强.煤矿巷道围岩注浆加固技术的现状与发展趋势[J].煤矿开采,2013,18(3):1-7.KANG Hongpu,FENG Zhiqiang.Status and development tendency of roadway grouting reinforcement technology in coal mine[J].Coal mining Technology,2013,18(3):1-7.
[19]中华人民共和国水利部.SL31-2003水利水电工程钻孔压水试验规程[S].北京:中国水利水电出版社,2003.
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