The Elementary Analyses of the Water Intake Variation Process of Seepage Channel

Seepage Channel inverted filter is composed of multi-layered aquifer which has different hydraulic permeability and thickness.It is a typical layered water bearing strata.At the shunt permeability interface,water flow will reflect because of the continuity of water flow,which will induce variations in the diversion of seepage flow in the horizontal direction and in the averaged hydraulic gradient of the aquifer as well as in discharge of seepage flow.This paper applies law of reflection of water flow to explain the process of water quantity variation from the gate to stable intake and the reasons for this process integrating with experiment.When the water seepage intercepted by filtration pipe equals the seepage discharge infiltrated from the ground surface,the intake of the seepage channel will come to stable.