摘要
以山西马道头煤矿5~#煤层为例,分析了矿井开采条件、水患来源,根据井田水文地质特征,开展了5~#煤层防治水分区划分研究。研究表明:(1)现阶段矿井水患主要为地表水及大气降水、采空区积水、地下水,导水通道主要有断层、陷落柱、导水裂缝带和封闭不良钻孔;(2)5#煤层防治水分区可划分为可采区和缓采区,其中可采区1处,面积约110.490 9 km^2,缓采区2处(Ⅱ-1#、Ⅱ-2#),面积约75.524 8 km2。在上述分析的基础上,针对可采区内的采空区积水、地表水及大气降水、煤层顶板水、奥灰水、断层水以及陷落柱水的防治措施进行了阐述;针对缓采区水文地质特征及水患类型不明确的问题,建议进一步开展物探工作,探明区内构造分布及水文地质情况。
According to 5~# coal seam of Madaotou Coal Mine as the study example,the mining conditions and water hazards source of the coal seam are discussed,according to the mine hydrogeological geological,partition division of water hazards prevention and controlling of 5~# coal seam is done. The study results show that：（1）at present,the mine water hazards types are mainly for surface water and atmospheric precipitation,goaf water,underground water,the water-guiding channels are mainly for fault,collapse column,water-guiding fissure belt and the holes with poor sealing effects;（2）partition of water hazards prevention and controlling of 5~# coal seam can be divided into minable area and delaying mining area,among them,number of minable mining area is one,its area is about 110. 490 9 km^2,number of delaying mining area is two（ named Ⅱ-1#and Ⅱ-2#）,sum area of them is about 75. 524 8 km^2. Based on the above discussion results,some related water hazards treatment measures of goaf water,surface water and atmospheric precipitation,water of coal seam roof,Ordovician limestone water,fault water and collapse column water of the minable mining area is proposed; in order to solve the unclear of hydrogeological characteristics and water hazards types,it is suggested that geophysical work should be futher conducted in the area,so as to obtain the reliable information of tectonic distribution and hydrogeological characteristics.
作者
姜士鹏
Jiang Shipeng(Madaotou Coal Industry Co.,Ltd.,Shanxi Datong Coal Mining Grou)
出处
《现代矿业》
CAS
2018年第5期233-237,共5页
Modern Mining
关键词
煤矿
深部开采
水患类型
防治水分区
采空区
Coal mine
Deep mining
Water hazards types
Partition division of water hazards prevention and controlling
Goaf
