基于煤炭采空影响的多含水层水文地质响应--以新桥煤矿为例

Hydrogeological response of multiple water layers based on influence of coal goaf:taking Xinqiao Coal Mine as an example

为研究受煤炭采空影响的多含水层的水文地质响应,以新桥煤矿为例,通过对其采空区分布和地表塌陷的调查,结合煤矿地质构造、含水层水文地质特征等的分析,探讨采空影响下煤层顶底板工程地质条件的改变而产生的导水通道,造成采空区地下水的补给和径流,并通过计算和PHREEQC模拟软件分别对采空区水量、水质进行预测,从而为煤矿安全生产和采空区地下水开发利用提供依据。

In order to study the hydrogeological response of multiple aquifers affected by coal goaf,taking Xinqiao Coal Mine as an example,through the investigation of its goaf distribution and mining subsidence,combined with geological structure,aquifer hydrogeological conditions and other analysis,this paper discusses the water passages caused by the changes of coal seam roof and floor engineering geological conditions,causing the groundwater recharge and runoff,then predicting the water quantity and quality of goaf groundwater by calculation and PHREEQC simulation software separately,so as to provide a basis for coal mine safety production and groundwater development and utilization in goaf areas.