Application of the Water Intake Mode of the Seepage Well in Dahuiping Water Source Region

The seepage well is a kind of water-fetching building,which has a complicated structure and is different from the horizontal wells and other wellholes. Taking advantage of purification effect of the riverbed aquifers,the seepage well can transform river water into groundwater so as to obtain water resource. The effect of the project is more remarkable in arid and semi-arid areas. By introducing the equivalent hydraulic conductivity,a three dimensional numerical model was developed to simulate the allowable yield of seepage well in the normal and dry seasons. Analysis indicates that the allowable water yield of Dahuiping water source area should be 30 600 m3/d.