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Civil - Foundation Engineering - Retaining Walls

Important Question And Answer: Civil - Retaining Walls

   Posted On :  23.07.2016 06:05 pm

Civil - Foundation Engineering - Retaining Walls

RETAINING WALLS

 

1. Define conjugate stresses?

The stress acting on the conjugate planes is called conjugate stresses

 

2. How do you check the stability of retaining walls?

 The wall should be stable against sliding

 The wall should be stable against overturning

 The wall should be stable against overturning

 

3. Define angle of repose ?

Maximum natural slope at which the soil particles may rest due to their internal friction, if left unsupported for sufficient length of time

 

4. Define theory of plasticity?

The theory on which the condition of the stress in a state of a plastic equilibrium is called as theory of plasticity.

 

5. What are assumption in coulomb wedge theory?

- the backfill is dry, cohesionless, isotropic, homogenous,

- the slip surface is plane which passes through the head of the wall

 

6. How to prevent land sliding?

Sheet piles, retaining wall may be used to prevent the land sliding

 

7. Write down any two assumptions of Rankine�s theory?

- semi infinite soil

- cohesion-less backfill

- homogenous soil

- the top surface is a plane which may be inclined or horizontal.

 

8. Distinguish Coloumb�s wedge theory from Rankine�s theory?

Rankine considered a soil particle at plastic equilibrium but Coulomb considered the whole soil mass.

 

Tags : Civil - Foundation Engineering - Retaining Walls
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