1. Trap efficiency of almatti reservoir in krishna basin – a case study
Authors : M. Visweswararao, Dr.g. K. Viswanadh
Pages : 168-176
DOI : http://dx.doi.org/10.21172/1.81.022
Keywords : Sediment load, trap efficiency,FRL,storage capacity,hydrographic surveys Abstract :In this paper an attempt has been made to study the sedimentation aspects of this reservoir and to evolve the sedimentation rates and trap efficiency of Almatti 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 Almatti on Krishna river in Karnataka is studied . The sediment rates are worked out considering the hydrographic surveys conducted by State of Karnataka and the same are compared with the hydrometrical observations conducted by CWC at various G&D stations in Krishna 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 84.3 % a bit different from Brunes trap efficiency median curve. The trap efficiency more or less converges to the lower envelop curve.
Citing this Journal Article :M. Visweswararao, Dr.g. K. Viswanadh, "Trap efficiency of almatti reservoir in krishna basin – a case study", Volume 8 Issue 1 - January 2017, 168-176
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