煤田地质与勘探2025，Vol.53Issue(7)：37-45,9.DOI:10.12363/issn.1001-1986.25.04.0274
东胜煤田顶板水害差异性特征与矿井水综合利用
Differential roof water hazards and comprehensive utilization of mine water in the Dongsheng coalfield
摘要
Abstract
[Objective]The Dongsheng coalfield exhibits various types of mine water hazards,complex water filling mechanisms,and high water inflow with high total dissolved solids(TDS)content in mining areas.These characteristics pose challenges to the comprehensive utilization of mine water,severely restricting the safe,green,and efficient coal mining in the coalfield.[Methods]This study aims to reveal the roof water filling characteristics of the Dongsheng coalfield and enhance the comprehensive utilization of mine water.Using methods including statistical analysis of drilling data,analytic hierarchy process,and hydrochemical tests,this study analyzed the strata,spatial distribution of aquifers,and the spatial configuration of aquifers and coal seams to be mined in the Dongsheng coalfield.Accordingly,it explored the characteristics of roof water hazards,the hydrochemical characteristics of mine water,and the ways of the reutilization of mine water.[Results and Conclusions]With an increase in the burial depth of coal seams,the overall water filling intensity of mines in the Dongsheng coalfield gradually increases from northeast to southwest.This is primarily attributed to the aquifers of the Jurassic Zhiluo Formation.Mining areas like Shendong and Wanli suffer vari-ous roof water hazards in shallowly buried,thin bedrocks.In contrast,mining areas like Khujirt and Nalinhe in the west are subjected to roof water hazards of single types in thick sandstones.The overall TDS content of mine water gradually increases from northeast to southwest with the burial depth of coal seams.The primary cause of this TDS content vari-ation is that the shallowly buried zones are prone to be recharged by the Quaternary phreatic aquifers,whereas aquifers in the deep parts primarily receive lateral recharge and exhibit slow runoff.The comprehensive utilization of mine water in the Dongsheng coalfield can be divided into four modes:quality-based cascade utilization of water resources mines,coordinated allocation of water resources among mines,coordinated water purification and utilization of coal mines and chemical industry,and mining area-agriculture-ecology combined allocation and utilization of water resources.These mine water utilization modes can effectively reduce the demand of relevant water consumption sectors for water re-sources from surface and groundwater systems.This will help save at least 3 579.16×104 m3 of water resources annually.关键词
矿井水/顶板水害/水化学特征/资源化利用模式/东胜煤田Key words
mine water/roof water hazard/hydrochemical characteristic/reutilization mode/Dongsheng coalfield分类
矿业与冶金引用本文复制引用
黄海鱼,丁湘,刘溪,樊江伟,纪卓辰,李兆扬..东胜煤田顶板水害差异性特征与矿井水综合利用[J].煤田地质与勘探,2025,53(7):37-45,9.基金项目
国家重大科技专项项目(2024ZD1700100) （2024ZD1700100）
陕西省自然科学基础研究计划青年项目(2025JC-YBQN-460) （2025JC-YBQN-460）
