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司家营铁矿北区位于滦河二级阶地和河漫滩上,矿区水文地质条件较为复杂,包含4个含水岩组。利用大井法和数值法对矿区各开采中段的涌水量进行了预测,结果证明两种方法计算结果较为接近,并且与矿山生产采场的实际涌水量相符,但数值模拟法相对误差更小,其计算结果可推荐为采场防排水设计依据。
The Sijiaying Iron Mine North District is located on the second terrace of the Luanhe River and the floodplain. The hydrogeological conditions in the mine area are rather complicated and contain 4 water-bearing rock formations. The large well method and numerical method were used to predict the inflow of water in the middle section of the mining area. The results show that the calculated results of the two methods are close and correspond to the actual inflow of mine production stope, but the relative error of the numerical simulation method is smaller Calculation results can be recommended for stope drainage design basis.