摘要
为了进一步研究北洺河铁矿2#线以东水文地质条件,为深部矿体开采提供科学合理的依据。本次研究利用井下及地表现有的水文地质观测孔,对矿区奥陶系灰岩含水层进行了大型群孔干扰非稳定流放水试验,并利用FEFLOW软件进行数值模拟分析,计算水文地质参数,预测了深部开采矿坑涌水量。结果表明:矿区2#线以东深部灰岩含水层透水性较弱,2#线两侧灰岩含水层存在一定的水力联系,整个北洺河矿区灰岩含水层为一个统一的含水体。
To investigate the hydrogeology condition at the east of 2nd line in Beiminghe Iron Mine thoroughly,and provide scientific and reasonable basis for deep mining.A large group of water hole of unsteady flow interference test was taken for the ordovician limestone aquifer,and the existing hydrogeologcal observation holes are used to carry out the dewatering test,simulation analysis was carry out by using the software of the FEFLOW,which can be used to identify the hydrogeological parameters and forecast the water inflow of deep limestone aquifer.The results show that the permeability of deep limestone aquifer is weak,there is certain waterpower relation among both sides of 2nd line of limestone aquifer,the whole limestone aquifer of Bei minghe Iron is unified water-logged stratum.
出处
《中国矿业》
北大核心
2015年第11期107-112,共6页
China Mining Magazine
