煤矿生产对地下水疏干作用的水化学证据

评估煤矿开采对地下水的影响一般都是计算冒落带高度或者降落漏斗影响半径,这些方法都是通过数学计算来推断其影响效果的。本文以生产工作中遇到的实际情况为例,运用水化学分析的知识,通过对研究区不同地点采水样进行分析,绘制水中离子对数指纹图和相关性分析图,并根据图中显示的水中离子浓度的变化趋势,分析研究地下水的补给、径流和排泄途径,从而直观、准确的证明了煤矿生产排水对当地地下水确实存在疏干作用。这种方法也为今后解决类似问题提供了一种思路。

Hydrochemical Evidences of Groundwater Dewatering Effect Caused by Coal Mining

Evaluation of impact on groundwater from coal mining is generally to estimate caving zone height or influence radius of depression cone, these methods are all presumed through mathematical computation. The paper takes practical instances from productive works, using hydrochemical analytical results of water samples from different locations, drew out logarithmic fingerprint diagram and correlativity analysis diagram of ions in the water. Based on concentration variation trend of water ions, analyzed groundwater recharge, run off and discharge paths. Accordingly certified the local groundwater dewatering effect from coal mining drainage is really existed intuitively and accurately. The method has provided a new idea to solve similar issues.