干湿循环次数对砂岩破碎岩石矿井水化学特征影响分析  

Analysis of the Influence of Dry Wet Cycle Times on the Chemical Characteristics of Sandstone Crushed Rock Mine Water

作　　者：王玉娇 Wang Yujiao(Shanxi Coking Coal Shanxi Coal International Baozigou Coal Industry Co.,Ltd.,Shanxi Linfen 041000)

机构地区：[1]山西焦煤山煤国际豹子沟煤业有限公司,山西临汾041000

出　　处：《山东煤炭科技》2023年第12期143-147,共5页Shandong Coal Science and Technology

摘　　要：为研究不同干湿循环次数对破碎砂岩水化学特征的影响,以豹子沟矿10203工作面为例,开展顶板破碎砂岩水岩作用实验。研究结果表明,随着干湿循环次数的增大,矿井水阴、阳离子置换作用增强,Na^(+)+K^(+)、HCO_(3)^(-)、CO_(3)^(2-)呈正相关的趋势,Ca^(2+)反之,长石矿物溶蚀-沉淀效应增强,矿井水化学类型由SO_(4)-Ca逐渐转化为HCO_(3)-Na类型。研究结果可为废弃矿井建设抽水蓄能电站采空区水化学评估提供借鉴。To study the effect of different wet dry cycles on the hydrochemical characteristics of fractured sandstone,a water rock interaction experiment was conducted on the 10203 working face of Baozigou Mine as an example.The research results indicate that as the number of wet and dry cycles increases,the displacement of anions and cations in mine water is enhanced.Na^(+)+K^(+),HCO_(3)^(-),and CO_(3)^(2-)show a positive correlation trend,while Ca^(2+)is the opposite.The dissolution precipitation effect of feldspar minerals is enhanced,and the chemical type of mine water gradually transforms from SO_(4)-Ca to HCO_(3)-Na type.The research results can provide reference for the hydrochemical evaluation of goaf in abandoned mine construction of pumped storage power stations.

关 键 词：水岩作用 干湿循环 破碎砂岩 水化学特征 离子浓度 

分 类 号：P641.5[天文地球—地质矿产勘探]