17-03-2014, 09:38 AM
DAMSb]
DAMS11.ppt (Size: 1.39 MB / Downloads: 42)
[b]Definition :
A dam is an artificial obstruction constructed across a stream or river for impounding water on one side of it.
Purpose of dams
Control Floods
Storage of surplus water
To run a turbine
Water supply requirements
Navigational purposes
Maintaining and breeding aquatic life.
General features of a dam
Upstream
Downstream
Spillway is a waterway provided in dam or separately for discharging the surplus water that cannot be stored safely in the dam.
MWL AND HFL
Crest
Freeboard
Drainage gallery
Toe
Heel
Cutoff
Energy dissipators
Geological effects on dams
Geology of the catchment area
Runoff and percolation
Geology of the reservoir area
No leakage of water
Position of ground water level to be investicated
Porous material should be avoided
Granites gneiss etc should be used
DAMS11.ppt (Size: 1.39 MB / Downloads: 42)
[b]Definition :
A dam is an artificial obstruction constructed across a stream or river for impounding water on one side of it.
Purpose of dams
Control Floods
Storage of surplus water
To run a turbine
Water supply requirements
Navigational purposes
Maintaining and breeding aquatic life.
General features of a dam
Upstream
Downstream
Spillway is a waterway provided in dam or separately for discharging the surplus water that cannot be stored safely in the dam.
MWL AND HFL
Crest
Freeboard
Drainage gallery
Toe
Heel
Cutoff
Energy dissipators
Geological effects on dams
Geology of the catchment area
Runoff and percolation
Geology of the reservoir area
No leakage of water
Position of ground water level to be investicated
Porous material should be avoided
Granites gneiss etc should be used