陕西省镇安县东沟金矿生产坑道系统涌水量预测方法对比

PREDICTION METHODS FOR INFLOW IN THE PRODUCTION TUNNEL SYSTEM OF DONGGOU GOLD MINE IN SHAANXI PROVINCE

根据矿区的水文地质条件和勘探坑道系统长期排水量动态观测资料和钻孔抽水试验资料,分别采用水文地质比拟预测法和Q-S曲线外推预测法,对矿区生产坑道系统涌水量进行预测对比.利用此方法预测的生产坑道系统涌水量,比较接近实际情况,预测的生产坑道系统最大涌水量可以作为生产坑道系统设计排水量的依据.对条件类似的矿山可采用水文地质比拟法预测坑道系统的涌水量.

The hydrological and geological conditions are studied with the dynamic observation record of long-term discharge of the exploration tunnel system and the data of pumping test in drill holes. The hydrogeological analogy method and the Q-S curve extrapolation forecasting method are adopted to forecast and compare the inflow of the production tunnel system in mining area. The forecasted inflow by the hydrogeological analogy is fairly close to the actual situation. The maximum inflow can be used as the basis for the design of discharge of the production tunnel system. The hydrogeological analogy method can also be applied in other mines with similar conditions.