A 3 ft x 3 ft square footing is to be placed over the following soil profile to support 18-kips column load. Determine if the clay is normally consolidated or over- consolidated. The pre-consolidation pressure (past maximum consolidation stress) of the clay is 600 lb/ft³. 2 ft 4 ft Sand Clay Rock 18 kips 2 ft Square foundation: 3 ft x 3 ft A = 100 lb/ft³ Ydry= Ground water table Ysat = 110 lb/ft³ o'c = Pc = 600 lb/ft²
A 3 ft x 3 ft square footing is to be placed over the following soil profile to support 18-kips column load. Determine if the clay is normally consolidated or over- consolidated. The pre-consolidation pressure (past maximum consolidation stress) of the clay is 600 lb/ft³. 2 ft 4 ft Sand Clay Rock 18 kips 2 ft Square foundation: 3 ft x 3 ft A = 100 lb/ft³ Ydry= Ground water table Ysat = 110 lb/ft³ o'c = Pc = 600 lb/ft²
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Question
Transcribed Image Text:1.0
QLS
Width B
Square loaded arca
0
0.5
-1.0
1.5
2.0
2/B
0.9
0.8
0.7
0.6
05
Covy & 2511 Pd ping
0.4
0.5
EO
0.2
18-
10=%
1.0
WB
overconsolidated clay, if o' < a <a + Ao'
normally consolidated clay (that is, o = o)
overconsolidated clay with o + Ao' < o
Transcribed Image Text:A 3 ft x 3 ft square footing is to be placed over the following soil profile to support
18-kips column load. Determine if the clay is normally consolidated or over-
consolidated.
The pre-consolidation pressure (past maximum consolidation stress) of the clay is
600 lb/ft³.
2 ft
4 ft
Sand
Clay
Rock
18 kips
2 ft
Square foundation: 3 ft x 3 ft
Ydry 100 lb/ft³
Ground water table
Ysat = 110 lb/ft³
o'= Pc = 600 lb/ft²
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