Research on Lateral Force of Pile Based on Liquefaction Site Effect

This paper presents a theoretical investigation on the lateral force of pile in liquefaction site. Regarded liquefied soil as fluid, the vector method can be used to analyze the liquefaction velocity field and solve the analytical solution of the dynamic field by making use of the principle of fluid...

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Main Authors: Zuo Xi, Zhou Enquan
Format: Article
Language:English
Published: Wiley 2020-01-01
Series:Shock and Vibration
Online Access:http://dx.doi.org/10.1155/2020/6513846
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author Zuo Xi
Zhou Enquan
author_facet Zuo Xi
Zhou Enquan
author_sort Zuo Xi
collection DOAJ
description This paper presents a theoretical investigation on the lateral force of pile in liquefaction site. Regarded liquefied soil as fluid, the vector method can be used to analyze the liquefaction velocity field and solve the analytical solution of the dynamic field by making use of the principle of fluid mechanics. In addition, by solving the velocity field with vector symbol operation method, the analytical expression of the lateral force in the liquefied flow field is obtained, and the sensitivity of the parameters in the analytical expression is analyzed. The results show that the stress field of the pile contains both the pressure resistance caused by surface pressure and the friction resistance caused by shear stress, when the liquefied soil flows laterally. The lateral forces on the pile are mainly composed of inertial forces and damping forces and are related to density, fluid viscosity, pile radius, and vibration frequency. With the increase of density, fluid viscosity, and pile radius, the added mass and added damping increase gradually. In a certain range, added mass and added damping are sensitive to vibration frequency.
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institution Kabale University
issn 1070-9622
1875-9203
language English
publishDate 2020-01-01
publisher Wiley
record_format Article
series Shock and Vibration
spelling doaj-art-642a0e12b79e413e899aa83fa8b99a512025-02-03T01:01:36ZengWileyShock and Vibration1070-96221875-92032020-01-01202010.1155/2020/65138466513846Research on Lateral Force of Pile Based on Liquefaction Site EffectZuo Xi0Zhou Enquan1Institute of Architectural Engineering, Jinling Institute of Technology, Nanjing 211169, ChinaFaculty of Civil Engineering and Mechanics, Jiangsu University, Zhenjiang 212013, ChinaThis paper presents a theoretical investigation on the lateral force of pile in liquefaction site. Regarded liquefied soil as fluid, the vector method can be used to analyze the liquefaction velocity field and solve the analytical solution of the dynamic field by making use of the principle of fluid mechanics. In addition, by solving the velocity field with vector symbol operation method, the analytical expression of the lateral force in the liquefied flow field is obtained, and the sensitivity of the parameters in the analytical expression is analyzed. The results show that the stress field of the pile contains both the pressure resistance caused by surface pressure and the friction resistance caused by shear stress, when the liquefied soil flows laterally. The lateral forces on the pile are mainly composed of inertial forces and damping forces and are related to density, fluid viscosity, pile radius, and vibration frequency. With the increase of density, fluid viscosity, and pile radius, the added mass and added damping increase gradually. In a certain range, added mass and added damping are sensitive to vibration frequency.http://dx.doi.org/10.1155/2020/6513846
spellingShingle Zuo Xi
Zhou Enquan
Research on Lateral Force of Pile Based on Liquefaction Site Effect
Shock and Vibration
title Research on Lateral Force of Pile Based on Liquefaction Site Effect
title_full Research on Lateral Force of Pile Based on Liquefaction Site Effect
title_fullStr Research on Lateral Force of Pile Based on Liquefaction Site Effect
title_full_unstemmed Research on Lateral Force of Pile Based on Liquefaction Site Effect
title_short Research on Lateral Force of Pile Based on Liquefaction Site Effect
title_sort research on lateral force of pile based on liquefaction site effect
url http://dx.doi.org/10.1155/2020/6513846
work_keys_str_mv AT zuoxi researchonlateralforceofpilebasedonliquefactionsiteeffect
AT zhouenquan researchonlateralforceofpilebasedonliquefactionsiteeffect