钱营孜煤矿砂岩裂隙水水化学特征及来源分析

Hydrochemical Characteristics and Source Analysis of Sandstone Fissures Water in Qianyingzi Coal Mine

分析地下水水化学特征有助于了解地下水的成分及其来源,还能为保障水资源可持续利用、预防水资源和保护生态环境提供重要支持。本次以钱营孜煤矿砂岩裂隙水19组水样为研究对象,采用离子比值及数理统计法对裂隙水水样的主要离子浓度进行分析。结果表明,砂岩裂隙水样品中阴离子以SO42−和HCO3−为主,而阳离子以Na+ + K+为主,水化学主要类型为SO4∙HCO3-Na + K型。基于离子比值分析,研究区裂隙水水化学成分主要来源于岩盐的溶解、碳酸盐及硫酸盐矿物的溶解作用。Analyzing the hydrochemical characteristics of groundwater can help to understand the composition and origin of groundwater, and can also provide important support for ensuring the sustainable use of water resources, preventing water resources and protecting the ecological environment. In this study, 19 groups of water samples from the sandstone fracture water of Qianyingzi Coal Mine were taken as the research object, and the main ion concentrations of the fracture water samples were analyzed by ion ratio and mathematical statistics. The results showed that the anions in the sandstone fracture water samples were mainly SO42−and HCO3−, while the cations were mainly Na+ + K+, and the main water chemical type was SO4·HCO3-Na + K type. Based on the ion ratio analysis, the chemical composition of fracture water in the study area was mainly derived from the dissolution of rock salt, carbonate and sulfate minerals.