Model Test and Numerical Simulation of Single Pile Response under Combined Loading in Slope

Vertical loads are commonly transferred by piles primarily in the upper structures. However, lateral loads are also significant compared with vertical loads in pile foundation design. Compared with a pile on level ground, there are many particular characteristics in a pile that is on sloping ground....

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Main Authors: Jianwei Zhang, Xiaoju Wang, Hao Wang, Hongyu Qin
Format: Article
Language:English
Published: MDPI AG 2020-09-01
Series:Applied Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3417/10/17/6140
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author Jianwei Zhang
Xiaoju Wang
Hao Wang
Hongyu Qin
author_facet Jianwei Zhang
Xiaoju Wang
Hao Wang
Hongyu Qin
author_sort Jianwei Zhang
collection DOAJ
description Vertical loads are commonly transferred by piles primarily in the upper structures. However, lateral loads are also significant compared with vertical loads in pile foundation design. Compared with a pile on level ground, there are many particular characteristics in a pile that is on sloping ground. These characteristics depend on the combined loading and the magnitude of the soil lateral displacement. In order to investigate the pile’s bearing characteristics, a model test was conducted and ABAQUS software was adopted to conduct 3D numerical simulation of a single pile with different slope angles under combined loads. The experimental results indicated that (1) the soil pressure along the slope direction was smaller than the other side, resulting in an asymmetry of the slope soil around the pile, and in turn introducing a horizontal thrust to the pile; (2) with the increase of slope angle, the horizontal thrust increased while the single pile’s bearing capacity decreased; (3) the vertical load caused more pile horizontal displacement with the growth of slope angle; and (4) the pile’s moment and the displacement also increased with the growth of the slope angle. The findings in this study can provide a useful reference in the design of piles or anti-slide piles in sloping ground.
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spelling doaj.art-d43988c42a7f48c7906daef57b5a8df32023-11-20T12:31:25ZengMDPI AGApplied Sciences2076-34172020-09-011017614010.3390/app10176140Model Test and Numerical Simulation of Single Pile Response under Combined Loading in SlopeJianwei Zhang0Xiaoju Wang1Hao Wang2Hongyu Qin3School of Civil Engineering and Architecture, Henan University, Kaifeng 475004, ChinaSchool of Civil Engineering and Architecture, Henan University, Kaifeng 475004, ChinaSchool of Civil Engineering and Architecture, Henan University, Kaifeng 475004, ChinaCollege of Science, Engineering of Flinders University, Adelaide 5042, AustraliaVertical loads are commonly transferred by piles primarily in the upper structures. However, lateral loads are also significant compared with vertical loads in pile foundation design. Compared with a pile on level ground, there are many particular characteristics in a pile that is on sloping ground. These characteristics depend on the combined loading and the magnitude of the soil lateral displacement. In order to investigate the pile’s bearing characteristics, a model test was conducted and ABAQUS software was adopted to conduct 3D numerical simulation of a single pile with different slope angles under combined loads. The experimental results indicated that (1) the soil pressure along the slope direction was smaller than the other side, resulting in an asymmetry of the slope soil around the pile, and in turn introducing a horizontal thrust to the pile; (2) with the increase of slope angle, the horizontal thrust increased while the single pile’s bearing capacity decreased; (3) the vertical load caused more pile horizontal displacement with the growth of slope angle; and (4) the pile’s moment and the displacement also increased with the growth of the slope angle. The findings in this study can provide a useful reference in the design of piles or anti-slide piles in sloping ground.https://www.mdpi.com/2076-3417/10/17/6140combined loadingsmodel testFEM simulationbearing capacity
spellingShingle Jianwei Zhang
Xiaoju Wang
Hao Wang
Hongyu Qin
Model Test and Numerical Simulation of Single Pile Response under Combined Loading in Slope
Applied Sciences
combined loadings
model test
FEM simulation
bearing capacity
title Model Test and Numerical Simulation of Single Pile Response under Combined Loading in Slope
title_full Model Test and Numerical Simulation of Single Pile Response under Combined Loading in Slope
title_fullStr Model Test and Numerical Simulation of Single Pile Response under Combined Loading in Slope
title_full_unstemmed Model Test and Numerical Simulation of Single Pile Response under Combined Loading in Slope
title_short Model Test and Numerical Simulation of Single Pile Response under Combined Loading in Slope
title_sort model test and numerical simulation of single pile response under combined loading in slope
topic combined loadings
model test
FEM simulation
bearing capacity
url https://www.mdpi.com/2076-3417/10/17/6140
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AT xiaojuwang modeltestandnumericalsimulationofsinglepileresponseundercombinedloadinginslope
AT haowang modeltestandnumericalsimulationofsinglepileresponseundercombinedloadinginslope
AT hongyuqin modeltestandnumericalsimulationofsinglepileresponseundercombinedloadinginslope