闭坑矿井采空区积水过程分析
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摘要
为研究闭坑矿井采空区积水问题,以岱河煤矿为研究对象,根据该煤矿矿井地质、水文地质条件及已有工作面采空区探放水资料,选用回采空间法计算了该煤矿闭坑后采空区积水体积,并分析了闭坑后采空区积水过程。分析结果表明:(1)岱河煤矿闭坑后采空区积水体积共6 208 267.20m~3,包括4 808 923.58m~3的工作面采空区积水体积和1 399 343.62 m~3的废弃巷道积水体积。假设单位涌水量为80 m~3/h,预计3 233.47d后积水充满矿井。(2)岱河煤矿闭坑后积水高度H与时间td关系表达式为H=2×10~(-8)t_d~3-7×10~(-5)t_d~2+0.131 7t_d-415.29。
In order to research water-filling problem in goaf of closed mine,taking Daihe Coal Mine as research object,mining space method was used to calculate water-filling volume in goaf of the closed mine according to geological and hydrogeological conditions of the coal mine as well as exploration and drainage data of previous working face goaf,and water-filling process in goaf of the closed mine was analyzed.The analysis results are as follows:(1) Total water-filling volume in goaf after Daihe Coal Mine being closed is6 208 267.20 m~3,which includes 4 808 923.58 m~3 in working face goaf and 1 399 343.62 m~3 in abandoned roadways.If water bursting speed is 80 m~3/h,then the closed coal mine will fully filled with water after3 233.47 days.(2) Relationship expressionbetween water-filling height(H)and time(t_d)is H=2×10~(-8)t_d~3-7×10~(-5)t_d~2+0.131 7t_d-415.29.
In order to research water-filling problem in goaf of closed mine,taking Daihe Coal Mine as research object,mining space method was used to calculate water-filling volume in goaf of the closed mine according to geological and hydrogeological conditions of the coal mine as well as exploration and drainage data of previous working face goaf,and water-filling process in goaf of the closed mine was analyzed.The analysis results are as follows:(1) Total water-filling volume in goaf after Daihe Coal Mine being closed is6 208 267.20 m~3,which includes 4 808 923.58 m~3 in working face goaf and 1 399 343.62 m~3 in abandoned roadways.If water bursting speed is 80 m~3/h,then the closed coal mine will fully filled with water after3 233.47 days.(2) Relationship expressionbetween water-filling height(H)and time(t_d)is H=2×10~(-8)t_d~3-7×10~(-5)t_d~2+0.131 7t_d-415.29.
引文
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[13]李思标,李迪昌,孔令珍,等.关于充水系数的取值问题[J].煤炭科学技术,2002,30(9):53-54.LI Sibiao,LI Dichang,KONG Lingzhen,et al.Issue on value set for mine water filled[J].Coal Science and Technology,2002,30(9):53-54.
[14]李雪.煤矿采空积水量计算中采空区充水系数确定方法[J].煤,2016,25(3):61-62.
[15]张运海,吴祥,李新华.顶板托板存在对采空区充水系数的影响[J].煤炭科学技术,2006,34(7):33-35.ZHANG Yunhai,WU Xiang,LI Xinhua.Roof bolt plate influenced to water filling coefficient in mine goaf[J].Coal Science and Technology,2006,34(7):33-35.
[16]孟召平,师修昌,刘珊珊,等.废弃煤矿采空区煤层气资源评价模型及应用[J].煤炭学报,2016,41(3):537-544.MENG Zhaoping,SHI Xiuchang,LIU Shanshan,et al.Evaluation model of CBM resources in abandoned coal mine and its application[J].Journal of China Coal Society,2016,41(3):537-544.
[17]谭军,廉法宪,宋辉.负压俯角探放老空区积水技术应用[J].煤炭工程,2015,47(1):50-52.TAN Jun,LIAN Faxian,SONG Hui.Application of dip angle old goaf water detection and drainage with negative pressure[J].Coal Engineering,2015,47(1):50-52.
[2]YOUNGER P L,ADAMS R.Predicting mine water rebound[R].Newcastle upon Tyne:University of Newcastle upon Tyne,1999.
[3]BANKS D.A variable-volume,head-dependent mine water filling model[J].Ground Water,2001,39(3):362-365.
[4]BANKS D,FROLIK A,GZYL G,et al.Modeling and monitoring of mine water rebound in an abandoned coal mine complex:siersza mine,upper silesian coal basin,poland[J].Hydrogeology Journal,2010,18(2):519-534.
[5]周建军,虎维岳,张壮路.废弃矿井地下水回灌模拟分析研究[J].西安科技大学学报,2008,28(3):434-438.ZHOU Jianjun,HU Weiyue,ZHANG Zhuanglu.Simulation of groundwater rebound in abandoned mine[J].Journal of Xi'an University of Science and Technology,2008,28(3):434-438.
[6]张壮路.废弃煤矿采空区积水过程分析[J].西部探矿工程,2004,16(10):86-87.ZHANG Zhuanglu.Analysis of water accumulated course in abandoned coal mine[J].West-China Exploration Engineering,2004,16(10):86-87.
[7]陈从磊,姚多喜.地下水化学特征在岱河矿涌水水源判别中的应用[J].中国煤炭地质,2012,24(10):35-37.CHEN Conglei,YAO Duoxi.Application of groundwater chemical characteristics in Daihe coalmine water inrush source discrimination[J].Coal Geology of China,2012,24(10):35-37.
[8]朱现民,刘聚友.煤矿采空区积水探放技术与方法[J].煤炭技术,2009,28(11):87-89.ZHU Xianmin,LIU Juyou.Technique and method of exploring and discharging gob water in coal mine[J].Coal Technology,2009,28(11):87-89.
[9]张壮路,闫显运,姜茂武.废弃矿井采空区积水过程分析[J].陕西煤炭,2004(1):12-13.ZHANG Zhuanglu,YAN Xianyun,JIANG Maowu.Analysis on process of water accumulated in abandoned coal mine[J].Shaanxi Meitan,2004(1):12-13.
[10]YAN Shu,XUE Guoqiang,QIU Weizhong,et al.Feasibility of central loop TEM method for prospecting multilayer water-filled goaf[J].Applied Geophysics,2016,13(4):587-597.
[11]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.
[12]熊崇山,王家臣.矿井采空区积水量的研究[J].矿业安全与环保,2005,32(2):10-11.
[13]李思标,李迪昌,孔令珍,等.关于充水系数的取值问题[J].煤炭科学技术,2002,30(9):53-54.LI Sibiao,LI Dichang,KONG Lingzhen,et al.Issue on value set for mine water filled[J].Coal Science and Technology,2002,30(9):53-54.
[14]李雪.煤矿采空积水量计算中采空区充水系数确定方法[J].煤,2016,25(3):61-62.
[15]张运海,吴祥,李新华.顶板托板存在对采空区充水系数的影响[J].煤炭科学技术,2006,34(7):33-35.ZHANG Yunhai,WU Xiang,LI Xinhua.Roof bolt plate influenced to water filling coefficient in mine goaf[J].Coal Science and Technology,2006,34(7):33-35.
[16]孟召平,师修昌,刘珊珊,等.废弃煤矿采空区煤层气资源评价模型及应用[J].煤炭学报,2016,41(3):537-544.MENG Zhaoping,SHI Xiuchang,LIU Shanshan,et al.Evaluation model of CBM resources in abandoned coal mine and its application[J].Journal of China Coal Society,2016,41(3):537-544.
[17]谭军,廉法宪,宋辉.负压俯角探放老空区积水技术应用[J].煤炭工程,2015,47(1):50-52.TAN Jun,LIAN Faxian,SONG Hui.Application of dip angle old goaf water detection and drainage with negative pressure[J].Coal Engineering,2015,47(1):50-52.