A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Reservoir as a desilting basin: ascertaining suitability- current practices
Hydro projects on the Himalayan rivers in the north and north eastern parts of India are generally provided with desilting basins to settle harmful suspended sediment before the flow reaches turbines. In many instances, desilting basins are found to be disproportionally costly, and in some cases, turbines were damaged even with the provision of well-designed desilting basins. There is a serious reconsideration about the possibility of dispensing with the provision of desilting basins. It is argued that the reservoir itself can be relied upon to perform the functions of a desilting basin. However, there is considerable difference between the mechanisms of trapping of suspended sediments and its evacuation in a desilting basin and that in a natural reservoir. Starting with a brief description of Reservoir Sedimentation Dynamics, the paper discusses current practice of analyzing the role of various parameters involved in the process, also bringing out comparison with the conventional desilting basins. It is emphasized that in the absence of any direct analytical method of ascertaining suitability of a natural reservoir to function as a desilting basin, numerical and physical model studies is the only available tool in this regard.
Reservoir as a desilting basin: ascertaining suitability- current practices
Hydro projects on the Himalayan rivers in the north and north eastern parts of India are generally provided with desilting basins to settle harmful suspended sediment before the flow reaches turbines. In many instances, desilting basins are found to be disproportionally costly, and in some cases, turbines were damaged even with the provision of well-designed desilting basins. There is a serious reconsideration about the possibility of dispensing with the provision of desilting basins. It is argued that the reservoir itself can be relied upon to perform the functions of a desilting basin. However, there is considerable difference between the mechanisms of trapping of suspended sediments and its evacuation in a desilting basin and that in a natural reservoir. Starting with a brief description of Reservoir Sedimentation Dynamics, the paper discusses current practice of analyzing the role of various parameters involved in the process, also bringing out comparison with the conventional desilting basins. It is emphasized that in the absence of any direct analytical method of ascertaining suitability of a natural reservoir to function as a desilting basin, numerical and physical model studies is the only available tool in this regard.
Reservoir as a desilting basin: ascertaining suitability- current practices
Khatsuria, R. M. (author)
ISH Journal of Hydraulic Engineering ; 27 ; 180-187
2021-04-03
8 pages
Article (Journal)
Electronic Resource
Unknown