Mechanical Performance of Settlement-Reducing Pile Foundation with Cushion

Hao Zhang; Ming Lei Shi

doi:10.4028/www.scientific.net/AMR.368-373.2545

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 368-373Mechanical Performance of Settlement-Reducing Pile...

Mechanical Performance of Settlement-Reducing Pile Foundation with Cushion

Abstract:

The main objective of adding piles to a raft is sometimes for settlement control. In design, the number of piles for reduce settlements under work load to a tolerable limit is usually small. This often results in a high stress in piles that may impede the application of this foundation due to the limits on raft stress or pile stress in practice. An alternative is to install a cushion between piles and raft. In this paper, the performance of disconnected settlement-reducing piles is studied. Based on some simplifications, a mechanical model of pile penetration into cushion and a calculation method of pile-soil interaction are respectively formulated. In consideration of stress-deformation coordination of pile-soil-cushion, a calculation method of pile-soil stress ratio is presented. Optimization design of disconnected settlement-reducing piles can be performed with this method.

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Periodical:

Advanced Materials Research (Volumes 368-373)

Pages:

2545-2549

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.368-373.2545

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Online since:

October 2011

Authors:

Hao Zhang, Ming Lei Shi

Keywords:

Cushion, Load Transfer Mechanism, Pile-Soil Stress Ratio, Settlement-Reducing Piles

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