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Balanced and Unbalanced Forces

Which of the ...

Question

Which of the following assumption(s) is/are 'INCORRECT' regarding Rankine's earth pressure theory?

1. The soil is dry and cohesionless

2. The back of retaining wall is rough and vertical

3. The ground surface is plane which may be horizontal or inclined

A

1 and 2

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B

2 only

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C

2 and 3

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D

3 only

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Solution

The correct option is B 2 only
In Rankine's theory, the back of the retaining wall is assumed to be smooth.

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