Author(s): C. M. Shah; V. K. Kulkarni

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Abstract: Several studies have been conducted in hydraulic models at the CWPRS for regulation of sediment through reservoirs and canals for hydel, thermal, nuclear as well as irrigation projects. In case of Baira reservoir, it was found feasible to flush out the sediment through a large size low level outlet. In case of another project in the Himalayan region, arrangements were made to suck out the sediment through the outlets provided below intake for maintaining the deep pool and controlling of sedimentation in the vicinity of the intake. In case of Trisuli Hydel Project in Nepal, a settling-cum-flushing tank was provided for increasing the life of balancing reservoir situated on the downstream. For Chukha Hydel Project in Bhutan, a Dufour type desilting basin with improved continuous flushing arrangement has been suggested. For Shanan Project in the Punjab State in India, a combination of continuous and intermittent flushing arrangement was achieved by making compartments in the basin. In case of very old existing Periyar Main Canal Project in South India, a low level curved wall arrangement across the channel was found convenient for trapping the bed load and flushing it back to the river.

DOI:

Year: 1993