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Consolidation

Chapter 9

Consolidation

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Consolidation Model

Consolidation Model

0

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Consolidation Model

Consolidation Model

0

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Consolidation Model

Consolidation Model

∆ ∆ ’+ ∆ 0

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Consolidation Model

∆ ∆ ’+ ∆

Consolidation Model

∆ ∆ ’+ ∆ 0

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Consolidation Test

Soilspecimen

Consolidation Test

Dial Gauge

Oedometer

Weights

Lever Arm

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Consolidation Test Results

Consolidation Test Results

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Consolidation Test Results

Consolidation Test Results

CcVirginConsolidationCurve

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Consolidation Test Results

CcVirginConsolidationCurve

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Consolidation Test Results

(Holtz & Kovacs, An Introduction to Geotechnical Engineering, 1981)

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Sample Disturbance

poor quality sample

0.4 e0

Schmertmann Procedure

0.4

c

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Schmertmann Procedure

0.4

sc

s

s

Consolidation Settlement

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Consolidation Settlement

∆1

∆1

∆∆ ∆

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The preconsolidation stressis 70 kN/m2, the compression index is 0.2 and the swelling index is 0.1.

Consolidation Settlement

∆ ∆ log

∆ log log ∆ log log∆

NormallyConsolidatedSoil

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Consolidation Settlement

∆ log log∆

OverconsolidatedSoil