Silting and Desilting of Reservoirs
The creation of river dams and the storage of water have been a strategy for survival for many centuries. Reservoirs have diverse functions, providing irrigation, water supply, storage of water, flood control, navigation and power generation. The silting of a reservoir is an unavoidable process. Although it cannot be halted, silting can be slowed down and controlled by a variety of soil conservation practices and by modifying agricultural practices in the catchment area. Other methods of reducing silting include the placing of certain engineering structures in the river system and the introduction of adequate strategies of reservoir operation. Silting and Desilting of Reservoirs includes aspects such as hydraulics, sediment transport, silting, sediment distribution, calculation and prediction of silting and solutions to reservoir silting.
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GENERAL CONSIDERATIONS ABOUT RESERVOIRS
Hydraulics of reservoirs
SEDIMENT TRANSPORT IN RESERVOIRS
SILTING OF RESERVOIRS PROCESS CAUSES AND EFFECTS
SEDIMENT DISTRIBUTION IN RESERVOIRS CALCULATION
COPING AND DEALING WITH SILTING AND DESILTING
Arges River average Basson Batuca bed-load calculation catchment coefficient continuity equation dam wall delta deposited sediment desilting developed diameter downstream drawdown dredging entrainment equation ervoir eutrophication field data flow depth flow rate flow velocity flushing channel flushing operations full supply level HR Wallingford hydraulic incoming sediment initial capacity intakes Lake Lake Mead main river method million m3 number of reservoirs numerical model Olt River Palagnedra Prundu ratio regime reser reservoir basin Reservoir in China reservoir silting reservoir water reservoirs in South river bed river system river-reservoir system Romania Rooseboom runoff sand Sanmenxia sedi sediment concentration sediment deposits sediment distribution sediment particles sediment transport sediment volume sediment yield shear stress shown in Figure silting process silting rate simulating slope sluicing South Africa specific weight storage capacity stream power surface syphoning tion topset trap efficiency turbidity currents upstream voir volume of sediment water level Welbedacht width