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Modern dams are made up of conceit and it must be dried out to build the dam. I wanted to know that how it is achieved?

2007-10-30 03:26:24 · 4 answers · asked by Swapnil P 2 in Science & Mathematics Engineering

4 answers

They use temporary dams called "coffer" dams, and diversion canals or diversion tunnels as appropriate to the geography of the area.

Google "coffer dam" for more detailed information.

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2007-10-30 05:28:58 · answer #1 · answered by tlbs101 7 · 0 0

Before the damn is built, there is a river in which the water is flowing.

Tunnels are built in one or both sides of the canyon.

Then the river is blocked by a temporary damn in order to make the water flows into the tunnels.

So that the site, for basing the damn, becomes dry.

The damn can be built up with concrete, and because the water is flowing into the side-tunnels, there is no accumulation of water while the damn is built.

Once the damn is built, side-tunnels are blocked, maybe using a controlled explosion, and the damn starts holding the water.

Sorry if my english is not perfect at all, english is not my native language.

2007-10-30 10:52:28 · answer #2 · answered by Anonymous · 1 0

If there was something to hold the water back, they wouldn't need to build the dam.

2007-10-30 10:36:05 · answer #3 · answered by Anonymous · 0 0

Typically a diversion path is prepared before construction starts. Often a tunnel.

2007-10-30 10:38:28 · answer #4 · answered by Ed 6 · 1 0

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