STUDY OF AUGMENTATION WELLS

Abstract

Groundwater pumped from tubewells could be used directly for irrigation or could be used for augmenting canal supplies Augmentation wells can be used for supplementing canal supplies during the period surface water supplies are not sufficient. The augmentation wells could be placed along the canal or on a line normal to the canal. In the case wells are placed close to the canal, the induced seepage from the canal will be more. On the other hand, if these are located farther away from the canal, the length of conveyance system and friction losses for conveying water to the canal will be more. Optimum distance and spacing of the well have been found for both the systems such that the unit cost of net pumped water is minimum. Computer programs have been developed for the optimisation of distance and spacing, unit cost etc. The optimum distance and spacing of wells along the canal have been found for convenyance system of open channel, P.V.C. pipe, R.C.C. pipe and M.S. pipe. Optimum distance & spacing of wells normal to the canal have. been found for open channel. The optimum distance and spacing have been determined in general for Transmissibility Coefficient ranging from 2.0 to 4.0 m2/min & storage coefficient from 0.001 to 0.1 & discharge of tubewell 60 1ps and 80 1ps....