团柏煤矿下组煤开采矿井充水条件分析

Analysis of Water- filled Condition During Lower Group Coal Mining in Tuanbai Coal Mine

矿井水害因其强烈的致灾性已引起广泛关注与研究,因此伴随水文地质条件复杂矿山开采过程的矿井充水条件分析尤为重要。以山西霍州煤电团柏煤矿的下组煤开采为研究背景,在分析下组煤顶、底板主要充水含水层富水性特征基础上,从充水水源、充水通道和充水强度3方面评价了10#和11#下组煤在顶板太原组灰岩含水层和底板奥灰含水层威胁下进行开采时的矿井充水条件,为采取相应的水害预防与治理对策提供了先决条件,同时为矿井实现安全开采提供了物质基础。

Coal mine water disaster has attracted great attention on account of its serious impact. As a result,under the complex hydrogeological conditions,the analysis on water- filled condition becomes important very much during its underground mining. Taking the lower group coal mining in Tuanbai Coal Mine of Shanxi Huozhou Coal and Electric Power Group as the background,based on water abundance analysis of adjacent aquifers at coal roof and floor,the water- filled condition of the lower group coal,including 10#and 11#coal,was analyzed. In detail,the water- filled source,the water- filled channel and the water- filled strength triggered by the mining and influenced by the adjacent aquifers,i. e.,Taiyuan formation limestone aquifer and Ordovician limestone aquifer were ascertained. The results supplied the precondition for the corresponding countermeasures for water disaster prevention and control,and provided the material basis for the coal mine safety mining; water disaster prevetion and controlling.