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A platform for research: civil engineering, architecture and urbanism
Nonlinear consolidation analysis of reclaimed ground with lateral drain vacuum consolidation
Abstract Vacuum consolidation is a soil improvement technique that accelerates consolidation of soft ground by using the action of the atmospheric pressure in combination with a ground pore-pressure relief system. Dredged and reclaimed soft clays form slurry sta te which is very high water content and very low shear strength, experience large self-weight consolidation with nonlinear compressibility and permeability phenomenon. Applying vacuum consolidation method with horizontal drain in order to improve reclaimed soft ground, non-linear finite consolidation phenomenon takes place. To analyze the non-liner, finite consolidation of reclaimed ground, a material functions which represent nonlinear effective stress-void ratio-permeability relationship were obt ained with slurry consolidation apparatus and numerical analysis program was developed. From the back analysis of pilot test, a material functions which fit to field condition were obtained. It shows reasonably good match to the observed settlement. Design parameter’s effects with lateral vacuum method were analyzed.
Nonlinear consolidation analysis of reclaimed ground with lateral drain vacuum consolidation
Abstract Vacuum consolidation is a soil improvement technique that accelerates consolidation of soft ground by using the action of the atmospheric pressure in combination with a ground pore-pressure relief system. Dredged and reclaimed soft clays form slurry sta te which is very high water content and very low shear strength, experience large self-weight consolidation with nonlinear compressibility and permeability phenomenon. Applying vacuum consolidation method with horizontal drain in order to improve reclaimed soft ground, non-linear finite consolidation phenomenon takes place. To analyze the non-liner, finite consolidation of reclaimed ground, a material functions which represent nonlinear effective stress-void ratio-permeability relationship were obt ained with slurry consolidation apparatus and numerical analysis program was developed. From the back analysis of pilot test, a material functions which fit to field condition were obtained. It shows reasonably good match to the observed settlement. Design parameter’s effects with lateral vacuum method were analyzed.
Nonlinear consolidation analysis of reclaimed ground with lateral drain vacuum consolidation
Lee, Kyu Hwan (author) / Kang, Myung Chan (author) / Jung, Dae Suck (author)
KSCE Journal of Civil Engineering ; 10 ; 427-434
2006-11-01
8 pages
Article (Journal)
Electronic Resource
English
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