JZUS - Journal of Zhejiang University SCIENCE

Journal of Zhejiang University SCIENCE A

Accepted manuscript available online (unedited version)

Model test study on the influence of the penetration of adjacent XCC pile on the existing XCC pile in sand

Author(s): Peng ZHOU, Jianhui XU, Changjie XU, Guangwei CAO, Jie CUI, Xuanming DING
Affiliation(s): School of Civil Engineering and Architecture, State Key Laboratory of Performance Monitoring and Protecting of Rail Transit Infrastructure, East China Jiaotong University, Nanchang 330013, China; more
Corresponding email(s): m_ma123@163.com
Key Words: X-section Cast-in-place Concrete pile; Tests; Penetration; Sand; Lateral response; Radial stress

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Peng ZHOU, Jianhui XU, Changjie XU, Guangwei CAO, Jie CUI, Xuanming DING. Model test study on the influence of the penetration of adjacent XCC pile on the existing XCC pile in sand[J]. Journal of Zhejiang University Science A,in press.Frontiers of Information Technology & Electronic Engineering,in press.https://doi.org/10.1631/jzus.A2300384

@article{title="Model test study on the influence of the penetration of adjacent XCC pile on the existing XCC pile in sand",
author="Peng ZHOU, Jianhui XU, Changjie XU, Guangwei CAO, Jie CUI, Xuanming DING",
journal="Journal of Zhejiang University Science A",
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publisher="Zhejiang University Press & Springer",
doi="https://doi.org/10.1631/jzus.A2300384"
}

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%T Model test study on the influence of the penetration of adjacent XCC pile on the existing XCC pile in sand
%A Peng ZHOU
%A Jianhui XU
%A Changjie XU
%A Guangwei CAO
%A Jie CUI
%A Xuanming DING
%J Journal of Zhejiang University SCIENCE A
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%@ 1673-565X
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%I Zhejiang University Press & Springer
doi="https://doi.org/10.1631/jzus.A2300384"

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T1 - Model test study on the influence of the penetration of adjacent XCC pile on the existing XCC pile in sand
A1 - Peng ZHOU
A1 - Jianhui XU
A1 - Changjie XU
A1 - Guangwei CAO
A1 - Jie CUI
A1 - Xuanming DING
J0 - Journal of Zhejiang University Science A
SP -
EP -
%@ 1673-565X
Y1 - in press
PB - Zhejiang University Press & Springer
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doi="https://doi.org/10.1631/jzus.A2300384"

Abstract
Chinese Summary
Academic Network
Reviewer Comment

Abstract: A series of small-scale 1g X-section Cast-in-place Concrete (XCC) pile-penetration model tests were conducted to study the effects of soil density and pile geometry on the lateral responses of an existing pile and the variations in surrounding soil stress. The results showed that the bending patterns of existing XCC piles varied with penetration depth. The lateral response of the existing pile was sensitive to the change in relative density and pile geometry. For example, the bending moment of the existing pile increased along with these parameters. The development of the radial stress σ'_r/σ'_v0 of the soil around an existing pile showed different trends at various depths during the penetration of the adjacent pile. Moreover, the change in radial stress during the penetration of the XCC pile did not exhibit the “h/R effect” that was observed in the free-field soil, due to the shielding effect of the existing piles. The peak value of radial stress σ'_{r_max}/σ'_v0 decreased exponentially as the radial distance r/R increased. The attenuation of σ'_{r_max}/σ'_v0 with r/R in the loose sand was faster than in the medium-dense or dense sands. The σ'_{r_max}/σ'_v0 at the same soil location increased with the cross-section geometry parameter.

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