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Study on Bearing Mechanism of Long-Short-Pile Composite Foundation under Rigid Foundation

Qian, Shuang Bin / Zhang, Li Hua

Long-short composite pile is a widely used ground improvement technique. This study presents the results of finite difference analyzes using FLAC3D software to investigate the load-bearing and bearing mechanism of long-short pile composite foundation under rigid foundation. The pile-soil load-sharing ratio and stress ratio, axial force distribution in the piles, and pile side friction resistance distribution characteristics are also studied. The results showed that due to negative skin friction of pile in composite foundation soil functions are fully utilized. On the other hand, the load distribution between piles and subsoil is significantly affected by the cushion.

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Study on Bearing Mechanism of Long-Short-Pile Composite Foundation under Rigid Foundation

Qian, Shuang Bin / Zhang, Li Hua

Long-short composite pile is a widely used ground improvement technique. This study presents the results of finite difference analyzes using FLAC3D software to investigate the load-bearing and bearing mechanism of long-short pile composite foundation under rigid foundation. The pile-soil load-sharing ratio and stress ratio, axial force distribution in the piles, and pile side friction resistance distribution characteristics are also studied. The results showed that due to negative skin friction of pile in composite foundation soil functions are fully utilized. On the other hand, the load distribution between piles and subsoil is significantly affected by the cushion.

Study on Bearing Mechanism of Long-Short-Pile Composite Foundation under Rigid Foundation

Qian, Shuang Bin / Zhang, Li Hua

Long-short composite pile is a widely used ground improvement technique. This study presents the results of finite difference analyzes using FLAC3D software to investigate the load-bearing and bearing mechanism of long-short pile composite foundation under rigid foundation. The pile-soil load-sharing ratio and stress ratio, axial force distribution in the piles, and pile side friction resistance distribution characteristics are also studied. The results showed that due to negative skin friction of pile in composite foundation soil functions are fully utilized. On the other hand, the load distribution between piles and subsoil is significantly affected by the cushion.

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Title:

Study on Bearing Mechanism of Long-Short-Pile Composite Foundation under Rigid Foundation

Contributors:

Qian, Shuang Bin / Zhang, Li Hua

Published in:

Applied Mechanics and Materials ; 638-640 ; 570-573

Publication date:

2014-09-19

Size:

4 pages

ISSN:

1662-7482 , 1660-9336

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.638-640.570

Type of media:

Article (Journal)

Type of material:

Electronic Resource

Language:

English

Keywords:

Long-Short-Pile , Composite Foundations , Rigid Foundation , Pile-Soil Share Ratio

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