3/31/2015 Consolidation Chapter 9 Consolidation 1
3/31/2015 Consolidation Model Consolidation Model 0 � � � � � � � 2
3/31/2015 Consolidation Model � � � � � � � Consolidation Model 0 � � � � � � � 3
3/31/2015 Consolidation Model Consolidation Model 0 ∆� � ∆� ’+ ∆� 4
3/31/2015 Consolidation Model ∆� � ∆� ’+ ∆� Consolidation Model 0 ∆� � ∆� ’+ ∆� 5
3/31/2015 Consolidation Test Soil specimen Consolidation Test Dial Gauge Oedometer Lever Arm Weights 6
3/31/2015 Consolidation Test Results Consolidation Test Results 7
3/31/2015 Consolidation Test Results Consolidation Test Results C c Virgin Consolidation Curve 8
3/31/2015 9
3/31/2015 Consolidation Test Results C c Virgin Consolidation Curve 10
3/31/2015 Consolidation Test Results (Holtz & Kovacs, An Introduction to Geotechnical Engineering , 1981) 11
3/31/2015 Sample Disturbance poor quality sample 0.4 e 0 Schmertmann Procedure c 0.4 12
3/31/2015 Schmertmann Procedure c s s s 0.4 Consolidation Settlement 13
3/31/2015 Consolidation Settlement � � � ∆� � ∆� � � ∆�� � � � ∆��� � ∆�� � � � � 1 � � � 1 � � � 14
3/31/2015 The preconsolidation stress is 70 kN/m 2 , the compression index is 0.2 and the swelling index is 0.1. Consolidation Settlement Normally Consolidated Soil ∆� � � � ∆ log � � ∆ log � � � log � �� � ∆� � log � �� � log � �� � ∆� � �� 15
3/31/2015 Consolidation Settlement Overconsolidated Soil ∆� � � � log � �� � � � log � �� � ∆� � �� � �� 16
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