水文地质工程地质2024，Vol.51Issue(3)：57-68,12.DOI:10.16030/j.cnki.issn.1000-3665.202401054
湖南省界牌岭矿区矿坑充水途径研究
Study on water filling path in the Jiepailing mining area of Hunan Province
摘要
Abstract
In the Jiepailing mining area,during the exploration and mining of deep polymetallic ores,the water filling in the pits and extensive karst ground collapses in the Yujia area occurred.Although previous studies have investigated the hydrogeological conditions in the mining area,the potential sources and pathways of water filling that threaten mine safety and damage the surrounding geological environment,are not clear.This study investigated the hydrogeological conditions and analyzed the pathways of water filling in the Jiepailing mining area by using systematical analysis of hydrogeological data from various stages,ground surface investigation,geophysical exploration,drilling,and pumping tests.The results show that:(1)the northeastern fault F303 is found,loocated in the southwestern part of the study area.(2)In the western part of the mining area the absence of the aquifuge between F201 and F32 leads to Shidengzi Formation directly contacting the Hutian Group and Zimenqiao Formation.It constitutes the main pathway of water filling in the mine pits,affected by F201,F303,and F32.In the northwestern part of the mining area,the contact zone between the granodiorite porphyry and the surrounding rock has good water-richness,forming the other pathway for water filling in the mine pits.The main sources of water filling are the groundwater in the western Hutian Group and Tianweixi river water.This study suggests executing curtain grouting on the west side of F,by the lower impermeable layer group to block water pathways within the Hutian Group of the Zimenqiao Formation,thereby interrupting the hydraulic connection between the mining area and the river water,as well as groundwater in the Hutian Group.The results can provide basic information for the implementation of water prevention and control in the mine area.关键词
多金属矿/充水途径/充水水源/岩溶地面塌陷/界牌岭Key words
polymetallic ore/fill avenue/water filling sources/karst ground collaspse/Jiepailing mining area分类
天文与地球科学引用本文复制引用
罗伟奇,何国扬,刘拥军,李同生,周鑫,陈文东,欧健,陈亮晶,宋学旺,章威..湖南省界牌岭矿区矿坑充水途径研究[J].水文地质工程地质,2024,51(3):57-68,12.基金项目
湖南省科学技术厅工程技术研究中心项目(2022TP2067) （2022TP2067）
湖南省地质院重大科技项目(HNGSTP202303) （HNGSTP202303）
