基于水化学和氯同位素的煤矿矿井水来源识别与解析  

Identification and analysis of coal mine water source based on water chemistry and Chlorine isotope

作　　者：张胜军 丁亚恒 姜春露[2] 李明 郑刘根[2] ZHANG Sheng-jun;DING Ya-heng;JIANG Chun-lu;LI Ming;ZHENG Liu-gen(Henan Energy and Chemical Group Yongmei Company,Yongchen 476600,China;School of Resources and Environmental Engineering,Anhui University,Hefei 230601,China)

机构地区：[1]河南能源化工集团永煤公司,河南永城476600 [2]安徽大学资源与环境工程学院,安徽合肥230601

出　　处：《煤炭工程》2022年第6期123-127,共5页Coal Engineering

基　　金：国家自然科学基金(41602310,42072201),中国博士后科学基金项目(2017M611044),安徽省教育厅重点项目(KJ2021A0085)。

摘　　要：准确确定矿井涌水来源及组成比例是矿井防治水工作的关键问题之一。先前的研究主要集中于矿井单一水源识别,对多源矿井水的混合问题涉及较少。以河南城郊煤矿矿井涌水为研究对象,采用常规水化学与氯同位素相结合的方法,在主要充水含水层水文地球化学特征研究基础上,识别出矿井涌水来源并解析其组成。结果表明,研究区矿井涌水水化学特征与煤系砂岩水和太灰水相似,表明矿井水主要由上述两种水源混合而来。结合Cl^(-)和^(37)Cl质量守恒原理,经端元法计算得出煤系砂岩水和太灰水占矿井涌水的比例在80.8%以上,未知端元水源贡献比例小于19.2%。该方法对于矿井涌水水源的判别更加快速准确,可为矿井防治水工作提供决策依据。It is one of the key problems of mine water prevention and control to exactly determine the source and composition of mine water inrush source.The previous researches mainly focused on the identification of single mine water source,but few on the mixed problem of multi-source mine water.The water inrush in a coal mine is taken as an example,the source was identified and its composition was analyzed based on the hydrogeochemical characteristics of main water-filled aquifers by combining hydrochemistry with chlorine isotope.The results show that the hydrochemical characteristics of the inrush water is similar to Permian sandstone water and Limestone water of Taiyuan Formation.This indicates that these two sources may be the main sources of mine inrush water.It is calculated by end member method that the proportion of Permian sandstone water and Limestone water of Taiyuan Formation in mine water is more than 80.8%,and the unknown end member water is less than 19.2%combined with the mass conservation of Cl^(-) and ^(37)Cl.This method is more rapid and accurate for the identification of mine inrush water source and can provide decision basis for mine water prevention and control.

关 键 词：矿井涌水 氯同位素 水化学 水源分析 

分 类 号：TD741[矿业工程—矿井通风与安全]