Distribution of sediments in the reservoir by area reduction method

Abstract

The repository of water for irrigation, water supply and power generation or for moderation of floods necessitates the construction of dams across rivers. As a consequence of the reduced velocity upstream of the dam all the bed load and a part of the suspended load is deposited in the quiet pool of water in the reservoir. This reduces the capacity of the reservoir for storing water by depositing the sediment in therein. There are two main methods of forecast of sediment distribution are area reduction method and area increment respectively. For the prediction of Sediment distribution in dam’s reservoir we can use the area reduction method & by using the Borland and Miller method finding out its parameters (C,m,n).the main objective of Borland and Miller technique is to determine depth/capacity /surface area relationship for reservoir once sediment has been deposited in this.