Model Test on Negative Skin Friction for Super-Long Pile under Surcharge Load Considering Time Effect

Jian Wei Zhang; Zhi Long Wang; Dong Qin Qiao

doi:10.4028/www.scientific.net/AMM.470.1105

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Model Test on Negative Skin Friction for Super-Long Pile under Surcharge Load Considering Time Effect
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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 470Model Test on Negative Skin Friction for...

Model Test on Negative Skin Friction for Super-Long Pile under Surcharge Load Considering Time Effect

Abstract:

Super-long pile bridges and high-rise buildings are commonly used in the form of pile foundation. In the flood area, due mainly silt stratum, as well as the decline in groundwater mound pile under the conditions set out in the consolidation, there will be a negative pile skin friction and negative friction obvious time effect, which bearing capacity of the pile has a great influence. Current research on negative friction for super-long pile considering time effect is relatively little. In the model box, on the base of the super-long pile silt model test, set out in a pile mound under consolidation, soil testing flour gradually over time preloading consolidation settlement, pile-soil relative displacement, so as to arrive negative friction pile variation with time, tip resistance variation with time from the pile-axial force curve deduce the location of the neutral point and changes in circumstances, the pile foundation engineering practice has a certain significance.

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Periodical:

Applied Mechanics and Materials (Volume 470)

Pages:

1105-1108

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.470.1105

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Online since:

December 2013

Authors:

Jian Wei Zhang*, Zhi Long Wang, Dong Qin Qiao

Keywords:

Negative Skin Friction, Super-Long Pile, Surcharge Load, Time Effect

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* - Corresponding Author

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