Abstract
Wells are used to solve several water management problems. In this study, hydraulics of fully penetrating injection wells in two semi-confined aquifers overlain by a thick soil slab have been analysed. Equations for steady piezometric head distribution in the two semi-confined aquifers arising due to constant rate of injection into (1) the lower aquifer, (2) the upper aquifer, and (3) both aquifers, have been derived. These solutions are developed under conditions of accretion from the land surface. In absence of accretion, when the well is fully penetrating both aquifers, it is analytically shown that the ratio of fluxes through the aquifers is equal to their transmissivity ratio. Sample computations of the three cases ascertain the validity of the solutions.
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