In this paper an analytical model of groundwater flow to vertical drainage is described. As a results of calculations the formulae for estimation of water discharge was proposed.
Mathematical model groundwater level lawering in aquifer located between two lawpermeable layers due to vertical drainage system is presented. In order to determine the distributions of water heads calculations were performed for three modes of subsoil configuration.
Analytical model of groundwater level lowering after the end of irrigation was described. According to the model proposed the rate of water lowering can be determined. The model was applied for analysis of groundwater flow in subsoil consisted of two layers: permeable and impermeable.
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Flow in trapezoidal crack of anizotropic porous media is analysed. Flow modelling is based on Dupuite law assuming two-dimensional situation. A new equations for calculation of water discharge in open crack are proposed.
Analitical model of grundwater discharge in two layer medium has been considered. Formulas for drain discharge, pressure in the two layers and lowering of groundwater level have been found.
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