scholarly journals Centrifuge Model Tests on Bearing Capacity And Deformation of Sand Layer Overlying Clay

1997 ◽  
Vol 37 (1) ◽  
pp. 73-88 ◽  
Author(s):  
Mitsu Okamura ◽  
Jiro Takemura ◽  
Tsutomu Kimura
Keyword(s):  
Bearing Capacity ◽  
Model Tests ◽  
Sand Layer ◽  
Centrifuge Model ◽  
Centrifuge Model Tests

Centrifuge Model Study on the Effect of Lattice Leg and Sleeve on the Postconsolidation Bearing Capacity of Spudcan Foundation

2018 ◽  
Vol 140 (4) ◽  
Author(s):  
Yu Ping Li ◽  
Jiang Tao Yi ◽  
Fook Hou Lee
Keyword(s):  
Bearing Capacity ◽  
Model Tests ◽  
Capacity Enhancement ◽  
Centrifuge Model ◽  
Model Study ◽  
Operation Period ◽  
Capacity Improvement ◽  
Jack Up ◽  
Two Sides ◽  
Centrifuge Model Tests

Up to now, the postconsolidation bearing capacity enhancement of jack-up spudcan foundation has been explored using centrifuge model tests and numerical analyses, which however ignored the realistic jack-up lattice leg. This paper investigates both typical lattice leg and sleeve effects on the postconsolidation spudcan bearing capacity using centrifuge model tests, by replicating the entire process of spudcan in normally consolidated clay: “penetration–unloading–consolidation–repenetration.” The experimental results show that the lattice leg and sleeve affect the spudcan bearing capacity in two sides compared with spudcan without leg. First, it increases the transient bearing capacity during initial spudcan penetration; second, less postconsolidation bearing capacity improvement is yielded by the presence of the leg. The former effect is of importance on the prediction of jack-up leg penetration, and the latter effect would suggest a lower risk of spudcan punch-through for realistic offshore jack-up rig during preloading and operation period.

Centrifuge Model Tests on Bearing Capacity of Clay

1984 ◽  
Vol 110 (12) ◽  
pp. 1749-1765 ◽  
Author(s):  
Akio Nakase ◽  
Osamu Kusakabe ◽  
Sing‐Fang Wong
Keyword(s):  
Bearing Capacity ◽  
Model Tests ◽  
Centrifuge Model ◽  
Centrifuge Model Tests

Soil-Pile-Superstructure Interaction in Liquefiable Sand

1997 ◽  
Vol 1569 (1) ◽  
pp. 55-64 ◽  
Author(s):  
Ross W. Boulanger ◽  
Daniel W. Wilson ◽  
Bruce L. Kutter ◽  
Abbas Abghari
Keyword(s):  
Relative Density ◽  
Model Tests ◽  
Single Pile ◽  
Sand Layer ◽  
Centrifuge Test ◽  
Centrifuge Model ◽  
Apparent Reduction ◽  
Centrifuge Model Tests

Soil-pile-superstructure interaction in liquefiable sand is evaluated using dynamic centrifuge model tests and pseudostatic p-y analyses. Select recordings from a recent centrifuge test are presented to illustrate typical behavior with and without liquefaction in an upper sand layer. Pseudostatic p-y analyses of single-pile systems in two recent centrifuge model tests show that the apparent reduction in p-y resistance due to liquefaction was strongly affected by changes in the relative density of the sand and drainage conditions.

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