淮北矿区刘桥一矿含水层水化学特征研究

为了研究刘桥一矿含水层水化学特征,在分析矿区水文地质条件的基础上,对各个含水层投产前后水质动态变化进行详细研究,并将各含水层中的矿化度、总硬度以及阴阳离子所占的比例进行对比。结果表明,随着出水时间的增加,出水点水样中Na++K+和SO42-平均含量在逐渐减少,Mg2+有所增加,Ca2+和HCO3-变化不大;总硬度和总矿化度表现出不同程度的降低。最后,从突水点水样分析结果和附近的太灰、八含长观孔的水位变化情况,推测出太灰水和八含水联系紧密,也是6煤层底板的主要突水水源。

Aquifer Hydrochemical Characteristic Study in Liuqiao No.1 Coalmine,Huaibei Mining Area

In order to study aquifer hydrochemical characteristics in the Liuqiao No.1 coalmine, on the basis of mine area hydrogeological condition analysis, carried out aquifer water quality dynamic change studies before and after put into production in detail, and contrasted the proportion of total dissolved solid, total hardness and anion, cation in water of aquifers. The result has shown, along with the increasing of effluent time, exit points average content of Na^＋＋K^＋and SO4^2-gradually decreasing, Mg^2＋has increased, Ca^2＋and HCO3^-changed not much;total hardness and total dissolved solid have decreased more or less. Finally, from water bursting points sample analysis and water level fluctuation in nearby Taiyuan Formation limestone aquifer, aquifer No.8 long term observation boreholes can extrapolate close hydraulic connection between the aquifers, also the main water bursting sources of coal No. 6.