基于水化学成分与聚类分析的矿井水补给关系判别
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摘要
井下放水试验是确定矿井各含水层间水力联系的常用方法之一。为了判别目标含水层与矿井其他含水系统间的联系,基于矿井不同含水系统水化学成分的差异,选取7种常规水化学成分指标对放水过程中目标含水层水源进行分析。以淮北矿区桃园煤矿Ⅱ4采区太原组灰岩含水层放水试验为例,采用水化学特征分析与系统聚类分析的方法,对放水试验过程中太灰水化学成分的变化进行对比分析。研究结果表明:随着放水试验的进行,太灰水质不断向奥灰水质接近,且采区太灰水与奥灰水欧氏距离最小,为185.01,通过系统聚类分析得出,太灰水与奥灰水可优先聚为一类,说明放水试验过程中太灰水受到奥灰水的补给,研究结果为矿井下一步防治水措施的选择提供依据。
Underground dewatering test is one of the commonly used methods to determine the connection between different aquifers in coal mines. In order to identify the connection between the target aquifer and other aquifers,seven routine water chemical criterions were adopted to analyze the water sources of the target aquifer during dewatering test based on the difference of water chemical composition of different aquifers.Dewatering test of Taiyuan formation limestone aquifer of Ⅱ4 mining area in Taoyuan coal mine was used as an example and methods of water chemical compositions analysis and system cluster analysis were used for analyzing the changing of water chemical compositions of Taiyuan limestone aquifer during dewatering test. The results show that water quality of Taiyuan formation limestone aquifer is getting closer to which of Ordovician aquifer. Besides,the Euclidean distance between Taiyuan formation aquifer and Ordovician aquifer is the minimum which is 185. 01 and water quality of the two aquifers can be priority grouped together indicating that Taiyuan formation limestone aquifer is supplied by Ordovician aquifer. The research results can provide the basis for the selection of water control measures.
Underground dewatering test is one of the commonly used methods to determine the connection between different aquifers in coal mines. In order to identify the connection between the target aquifer and other aquifers,seven routine water chemical criterions were adopted to analyze the water sources of the target aquifer during dewatering test based on the difference of water chemical composition of different aquifers.Dewatering test of Taiyuan formation limestone aquifer of Ⅱ4 mining area in Taoyuan coal mine was used as an example and methods of water chemical compositions analysis and system cluster analysis were used for analyzing the changing of water chemical compositions of Taiyuan limestone aquifer during dewatering test. The results show that water quality of Taiyuan formation limestone aquifer is getting closer to which of Ordovician aquifer. Besides,the Euclidean distance between Taiyuan formation aquifer and Ordovician aquifer is the minimum which is 185. 01 and water quality of the two aquifers can be priority grouped together indicating that Taiyuan formation limestone aquifer is supplied by Ordovician aquifer. The research results can provide the basis for the selection of water control measures.
引文
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[11]翟晓荣,吴基文,韩东亚.补给边界群孔放水试验的含水层参数计算[J].中国矿业大学学报,2014,43(5):837-840.ZHAI Xiaorong,WU Jiwen,HAN Dongya.Aquifer parameter calculation of pumping test of group holes with recharge boundary[J].Journal of China University of Mining&Technology,2014,43(5):837-840.
[12]翟晓荣,沈书豪,张海潮,等.基于MODFLOW的含水层间水力联系分析研究[J].水文地质工程地质,2015,42(6):9-11.ZHAI Xiaorong,SHEN Shuhao,ZHANG Haichao,et al.An analysis of hydraulic connection between different aquifers based on MODFLOW[J].Hydrogeology&Engineering Geology,2015,42(6):9-11.
[13]赵宝峰.复合含水层条件下矿井突水水源模糊聚类判别[J].煤矿安全,2015,46(7):189-191.ZHAO Baofeng.Identification of water-inrush source under compound aquifer by fuzzy clustering analysis[J].Safety in Coal Mines,2015,46(7):189-191.
[14]邱国良.桃园煤矿八采区可疏放性评价[D].淮南:安徽理工大学,2012.QIU Guoliang.Feasibility evaluation of depressurizing from Taiyuan formation limestone water sectorⅧin Taoyuan coal mine[D].Huainan:Anhui University of Science and Technology,2012.
[2]翟晓荣.矿井深部煤层底板采动效应的岩体结构控制机理研究[D].淮南:安徽理工大学,2015.ZHAI Xiaorong.Study on control mechanism of rock mass structure of coal floor mining effects at great depth[D].Huainan:Anhui University of Science and Technology,2015.
[3]宫凤强,鲁金涛.基于主成分分析与距离判别分析法的突水水源识别方法[J].采矿与安全工程学报,2014,31(2):236-242.GONG Fengqiang,LU Jintao.Recognition method of mine water inrush sources based on the principal element analysis and distance discrimination analysis[J].Journal of Mining&Safety Engineering,2014,31(2):236-242.
[4]徐建国,冯增强.矿井防治水综合技术[M].徐州:中国矿业大学出版社,2007:34-39.XU Jianguo,FENG Zengqiang.Mine water control integrated technique[M].Xuzhou:China University of Mining and Technology Press,2007:34-39.
[5]陈红江,李夕兵,刘爱华,等.用Fisher判别法确定矿井突水水源[J].中南大学学报(自然科学版),2009,40(4):1114-1120.CHEN Hongjiang,LI Xibing,LIU Aihua,et al.Identifying of mine water inrush sources by Fisher discriminate analysis method[J].Journal of Central South University(Science and Technology),2009,40(4):1114-1120.
[6]杨梅.基于GIS的淮南老矿区地下水环境特征及突水水源判别模型[D].合肥:合肥工业大学,2008.YANG Mei.A GIS-Based groundwater environmental characteristics and discriminating model of waterinrush source of the old coalfield in Huainan[D].Hefei:Hefei University of Technology,2008.
[7]陈红江,李夕兵,刘爱华.矿井突水水源判别的多组逐步Bayes判别方法研究[J].岩土力学,2009,30(12):3655-3659.CHEN Hongjiang,LI Xibing,LIU Aihua.Studies of water source determination method of mine water inrush based on Bayes’multi-group stepwise discriminant analysis theory[J].Rock and Soil Mechanics,2009,30(12):3655-3659.
[8]鲁金涛,李夕兵,宫凤强,等.基于主成分分析与Fisher判别分析法的矿井突水水源识别方法[J].中国安全科学学报,2012,22(7):99-114.LU Jintao,LI Xibing,.GONG Fengqiang,et al.Recognizing of mine water inrush sources based on principal components analysis and fisher discrimination analysis method[J].China Safety Science Journal,2012,22(7):99-114.
[9]Jianhua WU,Peiyue Li,Hui Qian,et al,2013.Using correlation and multivariate statistical analysis to indentify hydrogeochemical process affecting the major ion chemistry of waters:a case study in Laoheba phosphorite mine in Sichuan,China[J].Arabian Journal of Geosciences,DOI 10.1007/s12517-013-1057-4.
[10]A.G.S.Reddy,K.Niranjan Kumar,2012.Indentify of the hydrogeochemical process in groundwater using major ion chemistry:a case study of Penna-Chitravathi river basins in Southern India[J].Environ Monit Assess,170:374-379.
[11]翟晓荣,吴基文,韩东亚.补给边界群孔放水试验的含水层参数计算[J].中国矿业大学学报,2014,43(5):837-840.ZHAI Xiaorong,WU Jiwen,HAN Dongya.Aquifer parameter calculation of pumping test of group holes with recharge boundary[J].Journal of China University of Mining&Technology,2014,43(5):837-840.
[12]翟晓荣,沈书豪,张海潮,等.基于MODFLOW的含水层间水力联系分析研究[J].水文地质工程地质,2015,42(6):9-11.ZHAI Xiaorong,SHEN Shuhao,ZHANG Haichao,et al.An analysis of hydraulic connection between different aquifers based on MODFLOW[J].Hydrogeology&Engineering Geology,2015,42(6):9-11.
[13]赵宝峰.复合含水层条件下矿井突水水源模糊聚类判别[J].煤矿安全,2015,46(7):189-191.ZHAO Baofeng.Identification of water-inrush source under compound aquifer by fuzzy clustering analysis[J].Safety in Coal Mines,2015,46(7):189-191.
[14]邱国良.桃园煤矿八采区可疏放性评价[D].淮南:安徽理工大学,2012.QIU Guoliang.Feasibility evaluation of depressurizing from Taiyuan formation limestone water sectorⅧin Taoyuan coal mine[D].Huainan:Anhui University of Science and Technology,2012.