基于特定水化学特征的矿井涌水量构成比例分析

1.中煤科工集团 西安研究院有限公司,陕西 西安 710054; 2.河北工程大学 资源学院,河北 邯郸 056038

特定水化学特征; 矿井涌水量构成比例; 质量守恒原理; 水混合效应; 溶解度

Analysis of mine water inflow composition proportion based on the specific water chemical characteristics
YANG Zhi-bin1,BIAN Kai2

(1.Xi'an Researsh Institute,China Coal Technology and Engineering Group Corp,Xi'an 710054,China; 2.College of Resources,Hebei University of Engineering,Handan 056038,China)

specific hydrochemical characteristics; mine water inflow composition proportion; principle of conservation of mass; water mixing effect; solubility

DOI: 10.13800/j.cnki.xakjdxxb.2015.0609

备注

为了解决煤矿开采过程中难以准确掌握矿井涌水量构成比例问题,采用常规水化学分析法对矿井各充水含水层不同平面位置的水化学特征差异进行了分析,结合对相似程度较高的不同充水含水层进行不同配比的水样混合试验分析,确定出各充水含水层的特征离子为K++Na+和SO2-4.根据溶解度大的特征离子在水样混合前后遵守质量守恒原理,通过构建并求解以矿井涌水量构成比例为未知数的多元一次方程式预测的各涌水量占比与实测的各涌水量占比基本吻合。考虑到代表各个充水含水层特征离子含量的水样数据较少和同一含水层同一平面位置不同剖面上水质可能存在差异,应尽可能多地获取各个充水含水层不同平面和不同剖面位置上的水质资料,以求更客观真实地获得矿井涌水量构成比例。

In order to solve the problem of composition proportion of mine water inflow in the process of coal mining,which is difficult to accurately grasp,method of conventional water chemical analysis is used to analyze the differences of hydrochemical characteristics of aquifers filling with mine water in different plane position.Combined with mixed test analysis of water samples with different proportion from different aquifers which has a higher similarity degree,it has determined that the characteristic ions of each aquifer filling water are K++Na+ and SO2-4.According to the characteristic ion with high solubility abiding by the principle of conservation of mass before and after mixing water sample,through building and solving multi-variate equations in which the water inflow composition proportion is unknown,the water inflow composition proportion has been predicted and it coincide with the measured results.Considering that there are less sample data of the characteristic ions of aquifers filling water and there may be differences of water quality in different sections of the same plane of the same aquifer,the water quality data of filling aquifer in different planes and different sections should be got as much as possible to ascertain more objective and true composition proportion of mine water inflow.