The local scour depth of a semi circular shaped rectangular pier having width equal to w aligned parallel to the flow below the soil bed is

Q. The local scour depth of a semi circular shaped rectangular pier having width equal to w aligned parallel to the flow below the soil bed is

A

2w

B

1.2w

C

1.5w

D

w

Solution:

Given that the semi circular shaped pier is aligned parallel to the flow.
The shape factor is the ratio of safe scour depth to width ratio.
Shape factor for the given condition is 2.

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