襄垣大平煤矿3#煤层带双压开采临界突水系数的研究

A study on the mining practice in #3 coal seam of Xiangyuan Daping coal mine threatened by critical water inrush

针对襄垣大平煤矿K2和O2灰岩水突出危险情况进行了分析,结合《煤矿防治水规定》中提供的临界突水系数值和全国多个突水矿井的研究成果,计算出了大平煤矿可以带双压开采的临界突水系数值,得出了这些井田可以采用的安全带压开采预测模式。

On the basis of an analysis of the danger of water inrush from K2 and O2 limestone strata in Xiangyuan Daping coal mine and also on the basis of the critical water inrush values provided in the ＇Provisions of water disaster prevention in coal mines＇ and the research achievements obtained in multiple coal mines threatened by water inrush disaster around this country,this paper gives an account about the critical water inrush values under which mining can be carried out while karst water appears to under high pressure in Daping coal mine.Also presented is the mode to predict the safer mining under water pressure applicable in coal mines in this category.