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Journal: International Journal of Civil Engineering and Technology (IJCIET) (Vol.10, No. 7)

Publication Date:

Authors : ;

Page : 22-28

Keywords : Sediment load; trap efficiency; FRL; storage capacity; hydrographic surveys;

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In this paper an attempt has been made to study the sedimentation aspects of SRSP reservoir and to evolve the sedimentation rates and trap efficiency of this reservoir. When a dam is constructed on a river to store water, sediments transported by the water flow are also stored and reservoir capacity is gradually reduced by sediment accumulation. Prediction of sediment distribution in reservoirs is an important issue for dam designers to determine the reservoir active storage capacity, outlet sill elevation, dam stability, recreational facilities, and back water conditions. In this study, the sediment deposition in SRSP on Godavari river in Telengana is studied . The sediment trapped in the reservoir is worked out considering the hydrographic surveys conducted by State of Erstwhile Andhra Pradesh consisting of Telengana and the same are compared with the hydrometrical observations conducted by CWC at the G&D stations in Godavari river. The trap efficiency is also estimated considering the observations at the gauging stations .It is observed that the hydrographic and hydrometry observations fairly tally. The trap efficiency worked out as 91.3 % . This reduction in storage due to sedimentation coupled with reduction of inflows into SRSP is causing problems in meeting the demands of SRSP. The supplementation from Kaleswaram to an extent of 60 TMC will help SRSP and improve its performance. The storage at Yellampalli can also be utilized partly to meet the demands of SRSP

Last modified: 2019-08-09 15:22:27