深部山青工作面带压开采水文地质条件分析  

Analysis on hydrogeological condition of deep Shanqing coal seam mining face under pressure in mining

作　　者：李冲[1] 

机构地区：[1]冀中能源峰峰集团科技发展部,河北邯郸056107

出　　处：《煤炭与化工》2016年第3期95-97,101,共4页Coal and Chemical Industry

摘　　要：为确保带压开采深部山青工作面实现安全回采,对牛儿庄矿56805工作面的水文地质条件进行了分析,得出大青灰岩含水层和奥灰含水层是影响煤层开采的主要含水层,二者之间自然状态下无水力联系。通过对开采条件下煤层底板阻水性能的分析,发现隔水层阻水能力受采动影响较小,基本和自然状态下类似。最后利用突水系数法对工作面回采安全性进行评价,评价结果显示工作面基本满足安全开采要求工作面可以安全回采。In order to ensure safe actual mining of the deep Shanqing mining face under pressure, this paper analyzes the hydrogeological condition of 56805 mining face in Niuerzhuang Mine with the findings that Daqing limestone aquifer and Ordovician limestone karst aquifer are aquifers that mainly affect coal seam mining. Under natural condition, there is no hydraulic connection between the two. In the mining environment, coal seam bottom water-blocking ability analysis reveals that water-resisting ability of water-resisting layers have not changed much and very similar to natural state. In the end, the water inrush coefficient method is applied to the evaluation on the safety of 56805 working face, the results show that the working face meet the requirements of safety in mining.

关 键 词：带压开采 水文地质 突水系数法 

分 类 号：P641.4[天文地球—地质矿产勘探]