Answered: Circular foundation diameter B = 2m…

Circular foundation diameter B = 2m G.S. 1.0m Sand q = 150 kN/m² y = 17 kNhm² 0.5m W.T. Sand 0.5m Ysat. 5 19 kNhm? Normally consolidated clay = 18.5 kN/m² Y sat. = Cc =0.16, e, =0.85 5.0m

Principles of Foundation Engineering (MindTap Course List)

8th Edition

ISBN:9781305081550

Author:Braja M. Das

Publisher:Braja M. Das

Chapter13: Retaining Walls

Section: Chapter Questions

Problem 13.5P

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Concept explainers

Calculation of Settlement

The vertical displacement of the structural foundation due to the loading from the superstructure is known as settlement. It is due to the reduction of air voids present in the soil. The amount of vertical displacement depends on the bearing capacity of the soil on which the foundation is laid. The effect of the settlement depends on the magnitude of settlement, uniformity, and the structural design of the structure. The maximum allowable settlement for residential and office buildings should be less than 18 mm, for industrial buildings, it is 38 mm and for commercial buildings, it is 25 mm.

Question

A circular foundation 2m in diameter is shown in the figure below. A normally
consolidated clay layer 5m thick is located below the foundation. Determine the consolidation settlement of the clay.

1- method 2:1

2- consolidation settlement C_c method

Circular foundation
diameter B = 2m
G.S.
1.0m
Sand
q = 150 kN/m²
y = 17 kN/m²
0.5m
W.T.
Sand
0.5m
Ysat. 19 kNhn?
Normally consolidated clay
Y sat. = 18.5 kN/m²
Cc =0.16, e, =0.85
5.От

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