For a shallow foundation measuring (1.7 m x 2.2 m) as shown below:,Estimate the elastic settlement proposed by Mayerhof. Then,Estimate the elastic settlement proposed by Bowles, if the water table rises 1.5 m. Then,Estimate the primary consolidation settlement; when the bottom sandy layer is replacingwith a 5 m thickness of a clay layer. Noting that, the propertiės of the clay are the samefor the bottom sandy soil. Use yw=10 kN/m³qnet= 1.2 MN/m2G.S1.5 mSandYa=16 kN/m³ Ysat= 17 kN/m3%3D2.5 mN60=52V W.T.Silty Sand Yd=18 kN/m³ Ysat = 18.5 kN/m?N60=523.5 mSandYa=19 kN/m3Ysat = 22 kN/m³e, = 0.4, Ae=0.04 , o'= 194 kN/m25 mCc= 0.3, Cs= 0.2 , Ca= 0.05 N60=60CS Scanned with CamScanner

Given:- qnet=1.2MN/m2 size=1.7x2.2m To find:- elastic settlement

Answered: stimate the primary consolidation…

stimate the primary consolidation settlement; when the bottom san with a 5 m thickness of a clay layer. Noting that, the properties of t or the bottom sandy soil. Use y...-10 kN/m³

Principles of Foundation Engineering (MindTap Course List)

9th Edition

ISBN:9781337705028

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter10: Mat Foundations

Section: Chapter Questions

Problem 10.7P

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Concept explainers

Consolidation parameters

Consolidation is the process of expulsion of pore water present in the voids of soil solids under the pressure of the applied load. This is a quick process in the case of coarse-grained soils since the permeability is high due to the presence of more voids, while it is a slow and gradual process in the case of clayey soil as the permeability of clay is less. An example of consolidation is the settlement of soil under a building due to the load coming from the building.

Question

For a shallow foundation measuring (1.7 m x 2.2 m) as shown below:,
Estimate the elastic settlement proposed by Mayerhof. Then,
Estimate the elastic settlement proposed by Bowles, if the water table rises 1.5 m. Then,
Estimate the primary consolidation settlement; when the bottom sandy layer is replacing
with a 5 m thickness of a clay layer. Noting that, the propertiės of the clay are the same
for the bottom sandy soil. Use yw=10 kN/m³
qnet= 1.2 MN/m2
G.S
1.5 m
Sand
Ya=16 kN/m³ Ysat= 17 kN/m3
%3D
2.5 m
N60=52
V W.T.
Silty Sand Yd=18 kN/m³ Ysat = 18.5 kN/m?
N60=52
3.5 m
Sand
Ya=19 kN/m3
Ysat = 22 kN/m³
e, = 0.4, Ae=0.04 , o'= 194 kN/m2
5 m
Cc= 0.3, Cs= 0.2 , Ca= 0.05 N60=60
CS Scanned with CamScanner

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Question 1) For a shallow foundation measuring (1.7 m × 2.2 m) as shown below: , A. Estimate the elastic settlement proposed by Mayerhof. Then, B. Estimate the elastic settlement proposed by Bowles, if the water table rises 1.5 m. Then, C. Estimate the primary consolidation settlement; when the bottom sandy layer is replacing with a 5 m thickness of a clay layer. Noting that, the properties of the clay are the same for the bottom sandy soil. Use Yw=10 kN/m³ qnet= 1.2 MN/m? G.S 1.5 m Sand Y=16 kN/m³ Ysat = 17 kN/m³ 2.5 m Neo=52 yW.T. Silty Sand Ya=18 kN/m² Ysat = 18.5 kN/m? Ngo=52 3.5 m Sand Ya=19 kN/m³ Ysat = 22 kN/m? e, = 0.4 , Ae=0.04 ,o'=194 kN/m² 5 m Cc= 0.3, Cs= 0.2, Ca= 0.05 Neo=60
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