贵州金沙县东部汇鑫煤矿水文地质特征研究  

Study on Hydrogeological Characteristics of Huixin Coal Mine in Jinsha County,Guizhou Province

作　　者：龙宇 周武 LONG Yu;ZHOU Wu(Guizhou Coal Mine Geological Engineering Consulting and Geological Environment Monitoring Center;Guizhou Institute of Geological Survey)

机构地区：[1]贵州煤矿地质工程咨询与地质环境监测中心,贵州省贵阳市550006 [2]贵州省地质调查院,贵州省贵阳市550006

出　　处：《现代矿业》2025年第1期179-183,共5页Modern Mining

摘　　要：贵州黔北地区汇鑫煤矿煤层与下伏茅口组灰岩间距较小,矿区水文地质条件复杂。为研究矿区水文地质特征,通过瞬变电磁法,选取4,10,14,16号典型剖面进行电阻率异常值分析,发现岩溶含水异常区主要发育在茅口组、夜郎组二段;根据剖面综合解释成果得出,长兴组异常平面分布零散,煤系地层及茅口组异常集中分布在研究区中、西部,纵向上以长兴组地层低阻异常较强。对矿区水文地质特征分析,结果表明,地下水类型主要为P_(2)m+P_(3)c+T_(1)y^(2)岩溶水和P_(3)l+T_(1)y^(1)+T_(1)y^(3)裂隙水,矿井充水水源主要来自老采空区积水、龙潭组裂隙水、矿床底板茅口组岩溶水,充水方式以顶板淋水、底板涌水为主。The distance between the coal seam and the underlying limestone of Maokou Formation in Huixin Coal Mine in the northern part of Guizhou Province is small,and the hydrogeological conditions of the mining area are complex.In order to study the hydrogeological characteristics of the mining area,the resistivity anomaly values of typical sections No.4,10,14 and 16 are analyzed by transient electromagnetic method.It is found that the karst water-bearing anomaly areas mainly developed in the second member of Maokou Formation and Yelang Formation.According to the comprehensive interpretation results of the profile,the anomalies of Changxing Formation are scattered in plane distribution,and the anomalies of coal measure strata and Maokou Formation are concentrated in the middle and west of the study area.The low-resistance anomalies of the Changxing Formation are strong in the longitudinal direction.The analysis of the hydrogeological characteristics of the mining area shows that the types of groundwater are mainly P_(2)m+P_(3)c+T_(1)y^(2) karst water and P_(3)l+T_(1)y^(1)+T_(1)y^(3) fissure water,the water source of mine water is mainly from the old goaf,the fissure water of Longtan Formation,and the karst water of Maokou Formation on the floor of the deposit.The water filling way is mainly roof water pouring and floor water gushing.

关 键 词：水文地质特征 瞬变电磁法 充水方式 

分 类 号：TD74[矿业工程—矿井通风与安全] P641.461[天文地球—地质矿产勘探]