Vertical Cutting Edge Forces Measured During the Sinking of Pneumatic Caisson

During the construction of the pneumatic caissons supporting the towers of the Youngjong Grand Bridge in South Korea, the cutting edge of the Incheon side caisson was equipped with a number of strategically positioned reaction force gauges to measure vertical cutting edge contact pressures and to as...

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Bibliographic Details
Published in:Marine georesources & geotechnology 2012-04, Vol.30 (2), p.103-121
Main Authors: Yea, Geu-Guwen, Kim, Tae-Hyung
Format: Article
Language:English
Subjects:
caisson sinking
Caissons
Contact pressure
Cutting
engineering judgment
Foundations
Geotechnology
Judgment
Marine
Physical properties
pneumatic caisson
Pneumatics
reaction force gauge
Rigidity
Stress concentration
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Summary:During the construction of the pneumatic caissons supporting the towers of the Youngjong Grand Bridge in South Korea, the cutting edge of the Incheon side caisson was equipped with a number of strategically positioned reaction force gauges to measure vertical cutting edge contact pressures and to assess the contact pressure distribution developed during caisson sinking through a range of ground conditions. The magnitude of the contact pressure and its distribution under a foundation varies depending principally upon the physical properties of the founding material, foundation dimensions and the rigidity of the foundation construction. This requires the designer to make an engineering judgment based on the results of the site investigation and the rigidity of the foundation.
ISSN:1064-119X
1521-0618
DOI:10.1080/1064119X.2011.586013