新疆恒源煤矿新近系水体采动等级评价

Evaluation of Neogene Waters' Mining Level of Hengyuan Coal Mine in Xiniang

指出了恒源煤矿侏罗系煤系地层基本无水,主要充水水源为新近系独山子组的孔隙-裂隙含水层,但是主井筒开拓时,开始涌水量很小,继续向下开拓时,井筒涌水量超过1000m3/h。计算了煤层"两带"高度和新近系含水层与下覆煤系地层间距,研究表明:煤系地层与新近系水体间并无直接的水力联系,具体的涌水来源尚无定论,估算矿井的最大涌水量为160.74m3/h,正常涌水量为53.58m3/h。

Jurassic coal measure strata have no water basically in Hengyuan coal mine, and the main water source is the pore -- fracture aquifer of Dushanzi formation in Neogene. Yet when the main shaft is prospec- ted, the water inflow is very small in the beginning, and if continues to develop, wellbore water inflow will be more than 1000 m3/h. Through the calculation of the height of ＂two belts＂ of coal seam and the distance be- tween coal strata and Neogene aquifer and the overlying coal strata, the article finds that there is no direct water connection between coal strata and Neogene aquifer. Therefore, concrete water source is uncertain. According to the estimation,the maximum water inflow is 160.74 m^3/h and the normal water inflow is 53. 58 m^3/h.