华蓥山龙滩矿区煤层充水条件分析  

Analysis of Water-filled Condition of Coal Seam in Longtan Mining Area,Huayingshan

作　　者：陈盟 吴勇[2] 姚金钱 CHEN Meng;WU Yong;YAO Jinqian(College of Environmental Science and Engineering,Guilin University of Technology,Guilin 541004,China;College of Environment and Civil Engineering,Chengdu University of Technology,Chengdu 610059,China;HuaYingShan Coal Co.,Ltd.,Longmen Gorge South Coal Mine,Guang an 638020,China)

机构地区：[1]桂林理工大学环境科学与工程学院,广西桂林541004 [2]成都理工大学环境与土木工程学院,四川成都610059 [3]华蓥山煤业股份有限公司龙门峡南煤矿,四川广安638020

出　　处：《安全与环境工程》2019年第6期15-22,共8页Safety and Environmental Engineering

基　　金：广西科技基地和人才专项资助项目(桂科AD19110046);桂林理工大学科研启动费资助项目(RD18100525);广西环境污染控制理论与技术重点实验室研究基金资助项目(RZ18102010)

摘　　要：华蓥山地区龙潭煤系是主要的产煤层,位于P1 m+q和P2c岩溶含水层之间,开采难度较大。采用水化学分析、聚类分析和连通试验等方法,分析了煤层的充水条件、含水层之间的水力联系。结果表明:区内各含水层的补给与径流具有一定的同源性,水化学特征具有明显的分带特征,巷道与钻孔、暗河之间具有一定的连通关系;煤层的直接充水含水层包括底板P1m和顶板P2l岩溶含水层,煤层的间接充水含水层包括P2c、T1f、T1j和T2l岩溶含水层,岩溶含水层上下贯穿、水力联系良好,揭露裂隙通道时对井硐充水的影响较大;P1m岩溶水的越流和P2c岩溶水的径流对煤层和井硐的威胁最大。该研究成果对华蓥山地区龙潭煤系开采具有重要的科学指导意义。Longtan coal measures are the main coal seam in Huayingshan area which is located between P 1 m+q and P 2 c karst aquifers,and difficult to exploit.This paper applies hydrochemical analysis,tracing test and cluster analysis to analyzing the water filling condition of the coal seam and hydraulic connection of karst aquifers.The results show that the recharge and runoff of aquifer in this area have certain homology,hydrochemical characteristics have obvious zoning characteristics,and there is a certain connection between roadway,borehole and underground river;the karst aquifer is divided into direct water filling aquifer and indirect water filling aquifer according to the water filling characteristics of the coal seam,the former includes P 1 m roof and P 2 l floor karst aquifers,and the latter includes P 2 c,T 1 f,T 1 j,T 2 l and other karst aquifers;the karst aquifer runs through the upper and lower layers and has a good hydraulic connection.When the fissure passage is exposed,the influence of the fissure passage on the water filling in the tunnel is greater.The overflow of P 1 m karst water and the run off of P2c karst water poses the greatest threat to coal seam and tunnel.The research results have important scientific guiding significance for Longtan coal measures mining in Huayingshan area.

关 键 词：华蓥山 龙潭煤系 煤层充水条件 水力联系 

分 类 号：X14[环境科学与工程—环境科学] P641[天文地球—地质矿产勘探]