A footing has a size of 3.0 m by 1.50 m and it causes a pressure increment of 200 kN/m² at its base. Determine the consolidation settlement at the middle of the clay layer. Assume 2 : 1 pressure distribution and consider the variation of pressure across the depth of the clay layer. y = 10 kN/ m³. Sand Sand 1.5 m Y= 16.0 kN/m Yout= 18.0 kN/m³ Clay Y = 15 kN/m eo = 0.80 C₂ = 0.30 1m 1.5 m 0.5 m 3 m

A footing has a size of 3.0 m by 1.50 m and it causes a pressure increment of 200 kN/m² at its base. Determine the consolidation settlement at the middle of the clay layer. Assume 2 : 1 pressure distribution and consider the variation of pressure across the depth of the clay layer. y = 10 kN/ m³. Sand Sand 1.5 m Y= 16.0 kN/m Yout= 18.0 kN/m³ Clay Y = 15 kN/m eo = 0.80 C₂ = 0.30 1m 1.5 m 0.5 m 3 m

Principles of Geotechnical Engineering (MindTap Course List)

9th Edition

ISBN:9781305970939

Author:Braja M. Das, Khaled Sobhan

Publisher:Braja M. Das, Khaled Sobhan

Chapter17: Subsoil Exploration

Section: Chapter Questions

Problem 17.14P

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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 footing has a size of 3.0 m by 1.50 m and it causes a pressure increment
of 200 kN/m² at its base. Determine the consolidation settlement at the
middle of the clay layer. Assume 2 : 1 pressure distribution and consider
the variation of pressure across the depth of the clay layer. y = 10 kN/
m³.
Sand
Sand
1.5 m
Y= 16.0 kN/m
Yout= 18.0 kN/m³
Clay
y = 15 kN/m²
eo = 0.80
C₂ = 0.30
1m
1.5 m
0.5 m
3 m

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Problem 7.19 only.
ANSWER MUST BE: Sf= 0.0498 mm
For a normally consolidated clay, the following were recorded; confining pressure= σ3 = 140KPa and ∆σd = 264 KPa. Find ∅.
Geotechnical
No need to input units in final answer