广西盘龙铅锌矿区F_(2)断层透水性及控水作用分析  

Permeability and Water Control of F_(2)Fault in Panlong Lead-Zinc Mine Area, Guangxi

作　　者：覃佳肖 黄泽霖 蒋亚萍[1] 陈余道[1] 夏源[1,3] 郑杲 闫嘉宁 QIN Jiaxiao;HUANG Zelin;JIANG Yaping;CHEN Yudao;XIA Yuan;ZHENG Gao;YAN Jianing(Collaborative Innovation Center for Water Pollution Control and Water Safety in Karst Area,Guilin University of Technology,Guilin 541004,China;Guangxi Hydrogeology and Engineering Geology Team,Liuzhou 545006,China;Technical Innovation Center of Mine Geological Environment Restoration Engineering in South Shishan Area,Ministry of Natural Resources,Nanning 530031,China)

机构地区：[1]桂林理工大学岩溶地区水污染控制与用水安全保障协同创新中心,广西桂林541004 [2]广西壮族自治区水文地质工程地质队,广西柳州545006 [3]自然资源部南方石山地区矿山地质环境修复工程技术创新中心,广西南宁530031

出　　处：《安全与环境工程》2022年第6期54-61,共8页Safety and Environmental Engineering

基　　金：国家自然科学基金项目(41967028);广西科技基地和人才专项项目(桂科AD19110046)。

摘　　要：岩溶金属矿区断层的透水性是制约水害防控工作的关键因素。以广西盘龙铅锌矿区F_(2)断层为研究对象,通过整理该矿区地下水水位监测数据、抽水试验、声纳渗流测井试验以及可控源音频大地电磁(CSAMT)法等勘查成果,分析了广西盘龙铅锌矿区F_(2)断层的透水性规律及其对矿区的控水作用。结果表明:在盘龙铅锌矿区大岭矿段疏干开采情形下,F_(2)断层的透水性呈现南北差异,但总体上显示弱透水;F_(2)断层的控水作用表现为矿区南段相对隔水导致盘古村一带的地下水向北东径流至WT9测线附近再转向南东穿越F_(2)断层,成为矿区大岭矿段疏干区的涌水水源;在F_(2)断层弱透水作用下,矿区西部崩山矿段地下水子系统向大岭矿段的充水量约为矿坑排水量的22.5%。将水文地质和物探方法联合运用于矿区断层透水性调查,将有助于复杂岩溶矿山水害的防控,研究结果可为岩溶金属矿区安全治水提供科学依据。The permeability of faults in karst metal mine areas is a key factor restricting the prevention and control of water hazards.Taking F_(2)fault in Panlong lead-zinc mine area, Guangxi as the study object, by organizing the groundwater level monitoring data of Panlong lead-zinc mine, and based on the survey results of pumping tests, sonar seepage logging tests and Controlled source audio-frequency Magnetotellurics(CSAMT),this paper analyzes the permeability pattern of Fault 2(F_(2)) and its impact on water control in the mine area.The results are as follows: after draining the Daling mining section, there is a permeability difference between the northern and southern sections of F_(2),which in general shows weak permeability;the water control effect of the fault is that the relatively water-resisting southern section causes the groundwater around Pangu village to run off northeast to line WT9 and then turn to southeast to cross F,becoming the water inrush source of the drainage area of the Daling mining section;with the weak permeability of F_(2),the groundwater subsystem in the Bengshan section in the west fills the Daling section with approximately 22.5% of the mine drainage.The combination of hydrogeological and geophysical methods helps to prevent and control water hazards in complex karst mines, which can provide scientific basis for water control and safety of the karst metal mine areas.

关 键 词：断层 透水性 控水作用 广西盘龙铅锌矿区 

分 类 号：X936[环境科学与工程—安全科学]