Answered: Indicate the typical time period…

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Question

Indicate the typical time period associated with foundation settlement for the condition where granular soil provides the support and for the condition where saturated clay provides the support. Discuss the reasons for the difference.

Expert Solution

Step 1

Foundation Settlement is the vertical downward movement of foundation from its constructed to loaded position. Settlement of foundation is divided into Immediate, Primary and secondary settlement.

Immediate settlement is computed using the theory of elasticity.
Net elastic settlement for a flexible surface foundation based on theory of elasticity.

S_{i =} *I_f

S_{i =}Immediate elastic settlement both for granular as well as clayey soil.

q_{n =}Net foundation pressure

B = Width of foundation

E_s= modulus of elasticity

I_f = Influence factor which depends on the shape and rigidity of structure

µ = Poisson's Ratio

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