【摘要】 针对我国西北地区侏罗系煤层开采前对顶板砂岩水提前疏放后如何预测涌水量问题,本文采用统计和积分方法,得出含水层提前单孔疏放量,然后从工作面回采过程出发,充分考虑提前疏放量,并给出疏放后回采过程阶段涌水量预测公式,将疏放总量合理地分配到回采阶段中,预测出含水层疏放后回采过程不同阶段涌水量,为矿区涌水量的合理预测提供重要参考依据。更多还原

【Abstract】 In terms of the problem of Jurassic coal seams sandstone roof water drainage to advance water inflow prediction in northwest China,uses statistical and integral method for the calculation of aquifer in single hole drainage volume,then start from the process of mining face,considered the drainage amount fully in advance,meanwhile gives the prediction formula of mining process drainage after stage water inflow.Rational distribute the total drainage amount to mining stage,predict aquifer drainage after stoping process in different stages of water inflow,provide a reference basis for the reasonable prediction of mine water inflow.更多还原