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Question

An elementary profile of a gravity dam yields the following data:
Specific gravity of concrete = 2.5,
Coefficient of friction, μ=0.5,
Height of dam= 100 m,
The base width of the dam, considering no uplift, will be ___________ m.
  1. 80

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Solution

The correct option is A 80
To avoid tension failure.
BHScc

1002.5

63.25m

To avoid sliding failure,

BHμSc=1000.5×2.5=80m

Base width of dam should be the maximum value of (i) and (ii)
= 80 m

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