摘要
针对神东矿区现代煤炭开采对地下水的影响和矿井水外排蒸发损失等问题,采用物探和钻探观测、模型试验和数值模拟等手段,揭示神东矿区10余年来煤炭开采的地下水运移规律,即第四系松散孔隙含水层水位在下降20%~30%时,水量补给达到平衡,水位基本保持不变;基岩裂隙水是目前矿井涌水主要来源。在掌握现代煤炭开采对地下水影响规律基础上,研发了以超大工作面采空区冒落岩体空隙为储水空间,通过建设煤柱和人工挡水坝体,构筑煤矿地下水库,实现了地下水井下储存利用。
According to modernized coal mining affected to the underground water and the mine water drainage,evaporation,lost and other problems occurred in Shendong Mining Area,the geophysical exploration and drilling survey and observation,model experiment,numerical simulation and other means were applied to reveal underground water migration law of over passed 10 years coal mining in Shendong Mining Area. That was to say,when water table of Quaternary loose and pore aquifer was reduced by 20% ~ 30%,water quantity refilled reached balance and the water table would be steady basically. The crack water of the base rock was the main sources of the present mine water inflow. Based on the modernized coal mining affected to the underground water law,spaces between falling rocks in goaf of ultra large coal mining face were developed as water storey space. With construction of the coal pillars and man made dams,underground reservoir in the underground coal mine was set up and underground mine water storey and utilization were realized.
出处
《煤炭科学技术》
CAS
北大核心
2014年第12期113-116,128,共5页
Coal Science and Technology
基金
"十二五"国家科技支撑计划资助项目(2012BAC10B03)
关键词
煤炭开采
松散层孔隙水
基岩裂隙水
煤矿地下水库
矿井水利用
coal mining
pore water in loose strata
crack water of the base rock
reservoir in underground coal mine
mine water utilization
