Prediction of Sediment Deposition in Reservoir Using Analytical Method
American Journal of Civil Engineering
Volume 4, Issue 6, November 2016, Pages: 290-297
Received: Aug. 23, 2016; Accepted: Aug. 31, 2016; Published: Sep. 18, 2016
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Rajendra Patil, Civil Engineering Department, Government College of Engineering, Aurangabad, India
Rajeev Shetkar, Civil Engineering Department, Government College of Engineering, Aurangabad, India
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Sediment particles, a product of erosion in the catchment are transported along the river with flowing water. The construction of Weir, barrage or a dam causes obstruction to the flow resulting in reduction of velocity. The reduced velocity causes sedimentation resulting in reduction of storage capacity which affects the overall life of the reservoir. The sediment deposition in the reservoir is a continuous and complex process which affects the useful life of a reservoir. The quantification of sediment deposition in a reservoir is necessary for effective reservoir and river basin management. The present study has been carried out to assess sediment deposition in Koyna Reservoir which is located in the Western Maharashtra, India. In India most of the rainfall is caused due to the southwest monsoon during the period from June to September, massive convective thunderstorms dominate the weather. In the present study analytical methods are used for estimation of sediment deposited in the Koyna reservoir. For the prediction annual inflow data is used. The storage capacity of Koyna reservoir is calculated considering the loss of storage due to sediment deposition for a period from 1961 to 2375. The results obtained indicated a loss of reservoir capacity by the year 2004, as 267.25 Mm3 (9.55%). The physical measurement indicated that the Koyna reservoir had lost 293.09 Mm3 (10.48%) of its capacity by the year 2004. The results obtained by analytical method have 8.82% error compared with the actual measurements.
Reservoir, Inflow, Sedimentation, Capacity, Deposition
To cite this article
Rajendra Patil, Rajeev Shetkar, Prediction of Sediment Deposition in Reservoir Using Analytical Method, American Journal of Civil Engineering. Vol. 4, No. 6, 2016, pp. 290-297. doi: 10.11648/j.ajce.20160406.14
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