Q2 Calculate the settlement of the 3m-thick clay layer that will result from the load carried by a 1.5-m-square footing. The clay is normally consolidated. The average increase of effective pressure in the clay layer is 35.6 kN/m² and Cc = 0.27 3 m 3 m 1.5 m 3 m Ydry P Footing size 1.5 mx 1.5 m = 15.72 kN/m² Ysat 18.87 kN/m³ = Ysat e = 1.0 17.3 kN/m³

Q2 Calculate the settlement of the 3m-thick clay layer that will result from the load carried by a 1.5-m-square footing. The clay is normally consolidated. The average increase of effective pressure in the clay layer is 35.6 kN/m² and Cc = 0.27 3 m 3 m 1.5 m 3 m Ydry P Footing size 1.5 mx 1.5 m = 15.72 kN/m² Ysat 18.87 kN/m³ = Ysat e = 1.0 17.3 kN/m³

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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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

Q2
Calculate the settlement of the 3m-thick clay layer that will result from the load
carried by a 1.5-m-square footing. The clay is normally consolidated. The
average increase of effective pressure in the clay layer is 35.6 kN/m² and Cc =
0.27
3 m
1.5 m
✓
3 m
3 m
Ydry
=
Footing size
1.5 m X 1.5 m
=
15.72 kN/m²
Ysat 18.87 kN/m²
Ysat 17.3 kN/m³
eo=1.0

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