
Structural Analysis
6th Edition
ISBN: 9781337630931
Author: KASSIMALI, Aslam.
Publisher: Cengage,
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Soil mechanics

Transcribed Image Text:A foundation is to be constructed at a site where the soil profile is as shown below. The
dimensions of base of foundation is 3 m x 6 m, and it carries a total load Q = 5400 KN.
The initial void ratio in situe (eo = 1.38) and compression indec (Cc = 0.68)
Required,
1- What is the vertical stress at midheight of the clay layer (AP) due to the foundation total
load of (Q = 5400 KN), using the influence coefficient and table 10.6 shown below ?
2- What is the expected consolidation settlement of the clay layer in mm ?
3- If the bedrock is underlain the clay layer, how long it will take for 50% of consolidation
settlement if the coefficienent of consolidation ( Cv = 4.96 x 10-6 m2/min.
Elevation 200.0 m
Water Table
Water Table
7 Elevation 198.0 m
3 m by 6 m
Elevation 195.5 m
Sand and Gravel
y= 19.83 kN/m'
Elevation 192.0 m
Normally Consolidated Clay
y= 17.10 kN/m³
Elevation 185.6 m
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