水文地质工程地质2025，Vol.52Issue(4)：109-120,12.DOI:10.16030/j.cnki.issn.1000-3665.202502032
湖北荆襄磷矿莲花山矿段主井岩溶充水水源识别
Identification of karst water inflow sources in the main shaft of Lianhuashan,Jingxiang phosphate mine,Hubei Province
徐思 1于杨 1廖赔赔 2蔡祖旭 2刘家千琳 1陈彦美1
作者信息
- 1. 长江大学资源与环境学院,湖北武汉 430100||油气地球化学与环境湖北省重点实验室,湖北武汉 430100
- 2. 长江大学资源与环境学院,湖北武汉 430100||荆门市放马山中磷矿业有限公司,湖北荆门 448000
- 折叠
摘要
Abstract
Karst mining areas are characterized by pronounced heterogeneity due to extensive karst development,making them particularly susceptible to water inrush and groundwater contamination during deep extension mining.During the construction of the main shaft in Lianhuashan,the construction progress was slow because of being troubled by water inrush problems.This study identified the water-filling sources and main runoff paths of the main shaft by analyzing the hydrochemical data and isotope data before and after the pumping tests of the main shaft and surrounding hydro-holes and combining with high-precision field tracer experiments.The results show that the groundwater in drilling hole ZK02 within the Lianhuashan mining section is continuously replenished by the leakage of leachate from the southern phosphogypsum slag yard,with hydrochemical type of SO4-Mg·Ca.The hydrogen and oxygen isotopes show that atmospheric precipitation is one of the main water-filling sources of regional groundwater.After the main shaft pumping,the hydrochemical type changes from HCO3·SO4-Mg·Ca to SO4·HCO3-Mg·Ca,indicating that the drawdown funnel formed by pumping promotes the joint replenishment of the karst water of ZK01 and the leachate-polluted water of ZK02 to the main shaft.The tracer test reveals that the groundwater flow direction is from the slag yard→ZK02→ZK03→the main shaft.Regional flow is predominantly from the south,and under the structural influence of the F13 fault,leachate migrates along the Zhangjiachong syncline axis toward the F09 fault,eventually discharging through the main shaft along its dip direction.This study can provide a scientific basis for the prevention and control of karst water hazards,groundwater pollution,and the management of water resource development and utilization in the main shaft.关键词
莲花山矿段/岩溶地下水/水化学特征/示踪试验/同位素/充水水源分析Key words
Lianhuashan mining area/karst groundwater/hydrochemical characteristics/tracer experiment/isotope/water-filling sources analysis分类
天文与地球科学引用本文复制引用
徐思,于杨,廖赔赔,蔡祖旭,刘家千琳,陈彦美..湖北荆襄磷矿莲花山矿段主井岩溶充水水源识别[J].水文地质工程地质,2025,52(4):109-120,12.
