a. Compute the effective pressure at the mid-height of the clay layer. b. Compute the average incre ase of effective pressure in the clay layer c. Compute the settlement of the 3 m clay layerthat will result from the 890 Kr by the square footing.

Structural Analysis
6th Edition
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Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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3. A square footing 1.5 m x 1.5 m has its bottom placed1.5 m below the ground surface. The
profile has the soil shown. The clay is normally consolidate d.
a. Compute the effective pressure at the mid-height of the clay layer.
b. Compute the average increase of effective pre ssure in the clay layer
c. Compute the settlement of the 3 m clay layerthat will resultfrom the 890 KN load carried
by the square footing.
890 kN
Dry
sand
1.5m
1.5 x 1.5 m
1.5m
Ysa=15.7 kN/m3
V ground water table
4.5m
Sand
3m
Ysar=18.8 kN/m3
6m
7.5m
Clay
1.5m
3m
e=1.0 LL=40
Transcribed Image Text:3. A square footing 1.5 m x 1.5 m has its bottom placed1.5 m below the ground surface. The profile has the soil shown. The clay is normally consolidate d. a. Compute the effective pressure at the mid-height of the clay layer. b. Compute the average increase of effective pre ssure in the clay layer c. Compute the settlement of the 3 m clay layerthat will resultfrom the 890 KN load carried by the square footing. 890 kN Dry sand 1.5m 1.5 x 1.5 m 1.5m Ysa=15.7 kN/m3 V ground water table 4.5m Sand 3m Ysar=18.8 kN/m3 6m 7.5m Clay 1.5m 3m e=1.0 LL=40
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