煤矿采空塌陷对地下水的影响

Influence of coal mine goaf collapse on groundwater

在煤炭开采过程中,煤炭被采出后其所在地下煤层会形成一定区域的采空区,并使煤层上方的顶板岩层失去支撑,由于顶板岩层的抗拉强度比较有限,因此在其顶板岩层自身重力与上覆岩层压力的影响下,很容易因顶板断裂、破碎而出现采空塌陷问题,这不仅会影响煤矿所在区域的生态安全,同时还会使地下水受到较大的负面影响。为此,本文结合煤矿采空塌陷的特点,围绕采空塌陷对地下水的影响展开了分析,并在此基础上提出了一些较为可行的采空塌陷区域地下水治理保护建议。

In the process of coal mining,after the coal is mined,a certain area of goaf will be formed in the coal seam below its location,and the roof rock layer above the coal seam will lose support.Due to the relatively limited tensile strength of the roof rock layer,it is on its roof.Under the influence of the gravity of the rock layer and the pressure of the overlying rock layer,the problem of goaf collapse is likely to occur due to roof fracture and fragmentation.This will not only affect the ecological safety of the area where the coal mine is located,but also cause large negative impacts on groundwater.To this end,this article combines the characteristics of coal mine goaf collapse,analyzes the impact of goaf collapse on groundwater,and puts forward some feasible suggestions for groundwater treatment and protection in the area of goaf collapse.