矿坑涌水量预测研究

Prediction of mine water inflow

本文分别采用大井法和数值模拟法对徐家堡铁矿矿坑的涌水量进行了计算。结果表明,数值法预测的水量偏小,而大井法预测的水量较大,两者结果略有偏差,在矿坑安全和矿排水污染方面来看应选用大井法计算的水量,采用大井法计算得出矿坑的涌水量为18 900 m3/h。该研究结果可在保障采矿安全和矿排水综合利用方面提供科学依据。

Mine water inflow of the Xujiapu iron mine was calculated using virtual large diameter well method and numerical simulation method. The result showed that the water quantity predicted by the numerical simulation method was smaller. However,water quantity predicted by the virtual large diameter well method was larger. There were slight deviations of the two results. Considering the mine safety and drainage,the virtual large diameter well method should be used to calculate the water quantity. The mine water inflow calculated by the virtual large diameter well method was 18 900 m^3/ h. It could provide scientific basis for the comprehensive utilization of drainage and mine safety.