fill is to be placed over the following soil profile shown below. Determine if the clay is normally consolidated or over-consolic re-consolidation pressure (past maximum consolidation stress) of the clay is 1000 lb/ft³. ft Proposed Fill, y = 120 lb/ft³ Sand Clay Rock 2 ft A Ydry=100 lb/ft³ Ground water table Ysat 110 lb/ft³ o' Pc = 1000 lb/ft²

Principles of Foundation Engineering (MindTap Course List)
8th Edition
ISBN:9781305081550
Author:Braja M. Das
Publisher:Braja M. Das
Chapter16: Soil Improvement And Ground Modification
Section: Chapter Questions
Problem 16.8P
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A 5-ft fill is to be placed over the following soil profile shown below. Determine if the clay is normally consolidated or over-consolidated.
The pre-consolidation pressure (past maximum consolidation stress) of the clay is 1000 lb/ft³.
5 ft
2 ft
4 ft
Proposed Fill, y = 120 lb/ft³
Sand
Clay
Rock
2 ft
A
overconsolidated clay, if o<o<o+ Ao'
overconsolidated clay with a + Ao' ≤o,
normally consolidated clay (that is, o = o)
Ydry = 100 lb/ft³
Ground water table
Ysat 110 lb/ft³
o' Pc 1000 lb/ft²
20/20 points
Transcribed Image Text:A 5-ft fill is to be placed over the following soil profile shown below. Determine if the clay is normally consolidated or over-consolidated. The pre-consolidation pressure (past maximum consolidation stress) of the clay is 1000 lb/ft³. 5 ft 2 ft 4 ft Proposed Fill, y = 120 lb/ft³ Sand Clay Rock 2 ft A overconsolidated clay, if o<o<o+ Ao' overconsolidated clay with a + Ao' ≤o, normally consolidated clay (that is, o = o) Ydry = 100 lb/ft³ Ground water table Ysat 110 lb/ft³ o' Pc 1000 lb/ft² 20/20 points
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