带压开采煤层底板阻水能力测试与评价
吴光亮
（山西晋煤集团寺河矿， 山西晋城048000）
摘要： 华北型煤系地层基底奥灰岩溶含水层水是煤矿带压开采水害防治的重点水源之一。以寺河煤矿下组15^#煤层开
采为例， 介绍了该矿的水文地质条件， 重点介绍了煤层底板奥灰顶部峰峰组岩层压水试验的测试内容、方法和步骤， 计
算获得了渗透系数、导升高度和阻水系数等阻水能力相关数据， 并结合岩性组合特征、岩溶发育规律等论证了峰峰组相
对隔水层的存在， 进而对峰峰组地层的阻水能力进行了综合评价， 对该矿15^#煤层实现安全带压开采具有重要指导意义。
关键词： 压水试验； 阻水能力； 测试与评价
中图分类号：TD741     文献标识码：A      文章编号：2095-0802-(2021)01-0026-04
Test and Evaluation of Water-resisting Ability of Floor in Coal Seam with Pressure Mining
WU Guangliang
(Sihe Coal Mine, Jincheng Anthracite Mining Group of Shanxi, Jincheng 048000, Shanxi, China)
Abstract: Ordovician limestone karst water in the basement of North China coal measures strata is one of the key water sources
for water disaster prevention and control in coal mining under pressure. Taking the mining of 15^# coal seam of lower group in Sihe
Coal Mine as an example, this paper introduced the hydrogeological conditions of the mine, mainly described the test contents,
methods and steps of hydraulic fracturing test of Fengfeng formation at the top of Ordovician limestone of coal seam floor, obtained
the data of water-resisting ability such as the permeability coefficient, lifting height and water-resist coefficient by calculation,
discussed the existence of relative water resisting layer of Fengfeng formation combined with lithologic combination characteristics
and karst development regularity, and then comprehensively evaluated the water-resisting ability of Fengfeng formation, which has
important guiding significance for safe mining with pressure in 15^# coal seam of the mine.
Key words: hydraulic fracturing test; water-resisting ability; test and evaluation