Different construction methodlgy of a gravity dam
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Construction of Gravity Dams.
Before construction work in a river channel can be started, the stream flow must be diverted.
In two-Stages construction, the flow is diverted to one side of the channel by a cofferdam while working proceeds on the other side.
After work on the lower portion of one side of the dam is complete, flow is diverted through outlets in this portion or may even be permitted to over top the completed portion while work proceeds in the other half of the channel.
If geologic and topographic conditions are favorable, a tunnel or diversion channel may be used to convey the entire flow around the dam site.
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Before construction work in a river channel can be started, the stream flow must be diverted.
In two-Stages construction, the flow is diverted to one side of the channel by a cofferdam while working proceeds on the other side.
After work on the lower portion of one side of the dam is complete, flow is diverted through outlets in this portion or may even be permitted to over top the completed portion while work proceeds in the other half of the channel.
If geologic and topographic conditions are favorable, a tunnel or diversion channel may be used to convey the entire flow around the dam site.
HOPE IT HELPS YOU
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