在井筒施工前,正确地预计井筒涌水量,是决定选择凿井方法的重要依据之一。要使预计的井筒涌水量和实际涌水量接近,必须获得能反映含水层真实情况的各项水文地质参数。但是,我们新建成的几对矿井及其它一些矿井的井筒实际涌水量与利用勘探阶段提供的参数预计的水量,差别都较大。例如:芦沟竖井筒。按原参数预计只有40米~3/小时。建井期揭露的水量达到200米~3/小时,比预计大了四倍。山东、河北的一些矿井也都有类似情况出现。 In the wellbore construction, the correct prediction of wellbore inflow, is to choose one of the important basis for selection of shaft sinking method. In order to bring the predicted wellbore inflow and actual influx close to each other, it is necessary to obtain hydrogeological parameters which reflect the real situation of the aquifer. However, the difference between the actual water inflow in the wellbores of several newly-built mines and other mines and the estimated amount of water supplied using the parameters provided in the exploration phase is large. For example: Lugou shaft. According to the original parameters is expected to only 40 meters ~ 3 / hour. The amount of water exposed during the well construction period reached 200-3 / h, four times larger than expected. Some mines in Shandong and Hebei also have similar situations.