左则沟煤业太原组灰岩富水性规律研究与治理

Study and Treatment of Limestone Water Richness in Taiyuan Formation of Zuozegou Coal Mine

针对煤矿深部开采矿井面临的薄层灰岩水害的威胁,本文以左则沟煤业太原组薄层灰岩含水层水文地质条件探查分析治理为例,通过对放水试验研究,从含水层调查分析、含水层防治思路罗列、含水层水害治理措施及效果评价等方面进行了论述;同时还对含水层富水性进行了评价,对含水层连通性进行了总结,对水害治理方法措施进行分析研究。本研究旨在推广应用类似方法,最大限度降低太原组薄层灰岩突水威胁。

In recent years, since gradually exhausted shallow coal seams, we have been gradually mining deeper with varied mining conditions. Many mines, especially with multiple thin limestone aquifers, are threatened by water damage. This article takes the exploration, analysis, and treatment of hydrogeological conditions of the thin limestone aquifer in Zuozegou Coal Mine of Taiyuan Formation as an example. It is discussed through water release test research in terms of the investigation on the aquifer compensation and drainage conditions, the aquifer prevention and control, and the aquifer water damage control and evaluation. This article evaluates the water richness of the aquifer, summarizes the connectivity of the aquifer, as well as analyzes and studies the water hazard control measures, which is aiming to popularize the similar methods to minimize the threat of water outburst from the thin limestone of Taiyuan Formation.