Research on Uplift Bearing Performance of Assembled Steel Pipe Pile used in Transmission Lines in Mountainous Terrain

Assembled steel pipe pile, which is a novel pile foundation, is developed in the paper. The ultimate uplift bearing capacity of the pile is proposed, and simulation by Plaxis3D and the corresponding experiment are performed to verify the theory. In the simulation, ultimate uplift bearing capacity of...

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Main Authors: Zhou Kun, Chen Linhua, Gu Xiangyu, Zhang Qi
Format: Article
Language:English
Published: EDP Sciences 2019-01-01
Series:MATEC Web of Conferences
Subjects:
Online Access:https://www.matec-conferences.org/articles/matecconf/pdf/2019/24/matecconf_acem2019_03008.pdf
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author Zhou Kun
Chen Linhua
Gu Xiangyu
Zhang Qi
author_facet Zhou Kun
Chen Linhua
Gu Xiangyu
Zhang Qi
author_sort Zhou Kun
collection DOAJ
description Assembled steel pipe pile, which is a novel pile foundation, is developed in the paper. The ultimate uplift bearing capacity of the pile is proposed, and simulation by Plaxis3D and the corresponding experiment are performed to verify the theory. In the simulation, ultimate uplift bearing capacity of the assembled steel pipe pile and ultimate lateral frictional resistance of the interface of pile-soil increases with the increasing of the strength and stiffness of the interface of pile-soil, and with the increasing of length-diameter ratio, ultimate uplift bearing capacity of the assembled steel pipe pile increases while the ultimate lateral frictional resistance decreases gradually. The ultimate lateral friction is influenced by both of the strength of the soil around the pile and the interface of pile-soil, and the ultimate uplift bearing capacity obtained by simulation and theoretical calculation are close. Long-gauge FBG sensors are used in the experiment for measuring the longitudinal strain of the pile, and the error of ultimate uplift bearing capacity between the results of experiment and theory is less than 10%.
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spelling doaj.art-d1c1731fd3c043b5800aac67c2c9c3372022-12-21T21:28:14ZengEDP SciencesMATEC Web of Conferences2261-236X2019-01-012750300810.1051/matecconf/201927503008matecconf_acem2019_03008Research on Uplift Bearing Performance of Assembled Steel Pipe Pile used in Transmission Lines in Mountainous TerrainZhou Kun0Chen Linhua1Gu Xiangyu2Zhang Qi3Economy and Technology Research Institute, State Grid Hunan Electric Power CompanyEconomy and Technology Research Institute, State Grid Hunan Electric Power CompanySchool of Civil Engineering, Southeast UniversitySchool of Civil Engineering, Southeast UniversityAssembled steel pipe pile, which is a novel pile foundation, is developed in the paper. The ultimate uplift bearing capacity of the pile is proposed, and simulation by Plaxis3D and the corresponding experiment are performed to verify the theory. In the simulation, ultimate uplift bearing capacity of the assembled steel pipe pile and ultimate lateral frictional resistance of the interface of pile-soil increases with the increasing of the strength and stiffness of the interface of pile-soil, and with the increasing of length-diameter ratio, ultimate uplift bearing capacity of the assembled steel pipe pile increases while the ultimate lateral frictional resistance decreases gradually. The ultimate lateral friction is influenced by both of the strength of the soil around the pile and the interface of pile-soil, and the ultimate uplift bearing capacity obtained by simulation and theoretical calculation are close. Long-gauge FBG sensors are used in the experiment for measuring the longitudinal strain of the pile, and the error of ultimate uplift bearing capacity between the results of experiment and theory is less than 10%.https://www.matec-conferences.org/articles/matecconf/pdf/2019/24/matecconf_acem2019_03008.pdfassembled steel pipe pileultimate uplift bearing capacityfrictional resistancefinite element analysislong-gauge FBG sensors
spellingShingle Zhou Kun
Chen Linhua
Gu Xiangyu
Zhang Qi
Research on Uplift Bearing Performance of Assembled Steel Pipe Pile used in Transmission Lines in Mountainous Terrain
MATEC Web of Conferences
assembled steel pipe pile
ultimate uplift bearing capacity
frictional resistance
finite element analysis
long-gauge FBG sensors
title Research on Uplift Bearing Performance of Assembled Steel Pipe Pile used in Transmission Lines in Mountainous Terrain
title_full Research on Uplift Bearing Performance of Assembled Steel Pipe Pile used in Transmission Lines in Mountainous Terrain
title_fullStr Research on Uplift Bearing Performance of Assembled Steel Pipe Pile used in Transmission Lines in Mountainous Terrain
title_full_unstemmed Research on Uplift Bearing Performance of Assembled Steel Pipe Pile used in Transmission Lines in Mountainous Terrain
title_short Research on Uplift Bearing Performance of Assembled Steel Pipe Pile used in Transmission Lines in Mountainous Terrain
title_sort research on uplift bearing performance of assembled steel pipe pile used in transmission lines in mountainous terrain
topic assembled steel pipe pile
ultimate uplift bearing capacity
frictional resistance
finite element analysis
long-gauge FBG sensors
url https://www.matec-conferences.org/articles/matecconf/pdf/2019/24/matecconf_acem2019_03008.pdf
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AT chenlinhua researchonupliftbearingperformanceofassembledsteelpipepileusedintransmissionlinesinmountainousterrain
AT guxiangyu researchonupliftbearingperformanceofassembledsteelpipepileusedintransmissionlinesinmountainousterrain
AT zhangqi researchonupliftbearingperformanceofassembledsteelpipepileusedintransmissionlinesinmountainousterrain