南平硐煤矿宝莉断层导水性评价  

Evaluation of the Hydraulic Conductivity of the Baoli Fault at Nanping Refuge Mine

作　　者：彭景亮 陈秋南[2] 李俊 饶斌 PENG Jingliang;CHEN Qiunan;LI Jun;RAO Bin(Hunan Provincial Survey and Monitoring Institute of Hydrogeology and Environmental Geology,Changsha 410129,China;School of Civil Engineering,Hunan University of Science and Technology,Xiangtan 411201,China)

机构地区：[1]湖南省水文地质环境地质调查监测所,湖南长沙410129 [2]湖南科技大学土木工程学院,湖南湘潭411201

出　　处：《湖南科技大学学报(自然科学版)》2024年第4期1-8,共8页Journal of Hunan University of Science And Technology:Natural Science Edition

基　　金：湖南省交通运输科技项目资助(202308)。

摘　　要：煤矿水害是影响煤矿安全生产的重要因素,断层导水性评价是煤矿水害研究的核心问题之一.采用单一方法对断层导水性进行评价时会出现较大的偏差,不利于煤矿水害的精准防治.文章基于断层泥比率(SGR)法定量评价南平硐煤矿宝莉断层的封闭性,通过水文地质钻孔综合测井确定钻孔内地层渗水点及断层破碎带的详细位置,对钻孔内含水层进行分层抽水试验定量评价宝莉断层的渗透系数,进而评价断层的富水性和导水性,并采用水化学分析验证地表水与地下水之间的补给关系.研究结果表明:多方法多因素综合评价断层导水性方法对具体断层和具体部位的导水性评价较传统的单一模型分析法的判断结果更加准确.Water damage in coal mines is an important factor in the safe production of coal mines,and the evaluation of fault hydraulic conductivity is one of the core issues in the study of water hazards in coal mines.Using a single method to evaluate them often results in large deviations,which is not conducive to the accurate prevention and control of water hazards in coal mines.The shale gouge ratio(SGR)method is used to quantify the confinement of the Baoli Fault at the Nanping Refuge Mine.The hydrogeological boreholes are logged to determine the location of the seepage points and fault fracture zones in the boreholes,and the permeability of the Baoli Fault is quantified through stratified pumping tests of the water-bearing layers in the boreholes.Results of the study show that the multi-method and multi-factor approach is carried out to quantify the permeability of the fault,and this method to evaluate the hydraulic conductivity of the fault is more accurate than that of the traditional single-model analysis method.

关 键 词：煤矿水害 断层导水性评价 断层泥比率 综合测井 抽水试验 水化学分析 南平硐煤矿 

分 类 号：TD12[矿业工程—矿山地质测量]