| Using the method of discharge-time matching line which is based on the isolated well method,this paper computes the hydrologic-geologic parameters in the process of pumping and replenishing water,and contrasts its results to those of the methods of Theis,Dupuit and isolated well.The results explain that the discharge-time matching line method is ideal for its high accuracy,convenient calculation and reliable results in computing the phreatic parameters.Under the same hydrologic-geologic condition,the phreatic parameters of well pumping is little higher than that of well artificial replenishment,but the method used for pumping water process can be used to get approximatively the phreatic parameters of artificial replenishing process.The calculated results of the hydrologic-geologic parameters of phreatic aquifer by using the Theis method are obviously on the high side,so it is not suggested to adopt generally. |