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Research on Working Mechanism of CFG Pile Composite Foundation in the Interactive Marine & Terrestrial Deposit
Author(s): 
Pages: 127-129,132
Year: Issue:  11
Journal: Yellow River

Keyword:  CFG pile composite foundationsoft soilcushionstress ratio of pile and soilfluice;
Abstract: Relying on a coastal sluice foundation treatment project,analysis on working mechanism and application of CFG pile composite founda-tion were carried out with the finite element analysis software. Research shows that,as the load increases,the ratio of load sharing will grow also. The stress ratio of CFG pile and soil shows a logarithmic relationship,thickness of cushion for CFG pile composite foundation give a reasonable in-fluence to logarithmic parameter. Significant performance will be displayed while cushion is set up. When the cushion is disappear,the stress con-centration exists on the top of pile obviously,actual bearing capacity of soil will be cut down and discouraged;while the thickness of cushion is set up about half the diameter of the pile,the growth of bearing capacity of composite foundation will be evident;while the thickness of cushion is 50 cm,the economic costs grow up together and the bearing capacity improving slowly.
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