摘要
鲍店煤矿四采区曾发生５次突水事故。最大突水量２８５．４ｍ３／ｈ。本文通过水质、水量和水位监测资料分析认为：四采区主要的充水水源为侏罗系上统红层中的地下水，红层内部的水力联系较好；充水通道为采动导水裂隙，充水方式主要是顶板淋水和采后突水。随着采动导水裂隙波及范围的扩大，红层地下水位下降速度加快，疏干效应明显。
Five water outbursts have occurred in working no. 4 of Baodian Coal Mine and the most water yield was up to 285. 4 m3/h. According to plentiful montoring data of the quantity,quality and level of watet,the authors resch a conclusion that ground-water in red beds of Upper Jurassic System is source of water inrush,fissures induced by mining is passageway of water inrush,and patterns are roof leakage and water outburst after mining. Groundwater in red beds exists a relative good hydraulic connection and drawdown ratio of piezometric level increases with extending of extent of fissures induced by mining,this shows that water inrush of working no. 4 withdraws the static reserve of groundwater in red beds.
出处
《煤田地质与勘探》
CAS
CSCD
北大核心
1996年第4期35-38,共4页
Coal Geology & Exploration
关键词
煤矿
采矿区
涌水规律
矿井涌水
orkings
water inrush
ground water recharge
red beds.
