Bearing Capacities and Failure Behaviors of F-Type Socket Joint in Rectangular Pipe Jacking Tunnel

Xu, Youjun; Huang, Zhengdong; Zhang, Chao; Pang, Yuekui; Liu, Tianyu

doi:10.3390/app13095442

Open AccessArticle

Bearing Capacities and Failure Behaviors of F-Type Socket Joint in Rectangular Pipe Jacking Tunnel

by

Youjun Xu

^1,2,3,

Zhengdong Huang

^1,2,3,4,*,

Chao Zhang

^1,2,3,

Yuekui Pang

^1,2,3,* and

Tianyu Liu

^1,2,3

¹

School of Civil Engineering, Inner Mongolia University of Science and Technology, Baotou 014010, China

²

Academician Workstation of Mine Safety and Underground Engineering, Inner Mongolia University of Science and Technology, Baotou 014010, China

³

Engineering Research Center of Urban Underground Engineering at Universities of Inner Mongolia Autonomous Region, Inner Mongolia University of Science and Technology, Baotou 014010, China

⁴

Key Laboratory of Urban Security and Disaster Engineering, Ministry of Education, Beijing University of Technology, Beijing 100124, China

^*

Authors to whom correspondence should be addressed.

Appl. Sci. 2023, 13(9), 5442; https://doi.org/10.3390/app13095442

Submission received: 27 December 2022 / Revised: 12 February 2023 / Accepted: 17 February 2023 / Published: 27 April 2023

(This article belongs to the Special Issue Urban Underground Engineering: Excavation, Monitoring, and Control)

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Abstract

The joint bending test was carried out to study the bending mechanical property and deformation characteristics of the F-type socket joint in rectangular pipe jacking tunnels under the conditions of foundation settlement, construction disturbance and different upper loads. The supporting function of soils under different geological conditions on the rectangular pipe jacking was simulated by arranging different numbers of equivalent foundation springs at the bottom of the pipe. The test results show that the greater the foundation stiffness is, the greater the joint bending moment will be at the same loading displacement, which leads to greater joint opening deformation. When the pipe joint itself produces large deformation, the change rate of joint opening slows down, and the slope of the bending stiffness curve of the joint increases. The bending bearing capacity of the joint is closely related to the foundation stiffness. The greater the foundation stiffness is, the higher the bending bearing capacity.

Keywords: structural engineering; rectangular pipe jacking; F-type socket joint; bending stiffness; mechanical property; deformation mechanism

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MDPI and ACS Style

Xu, Y.; Huang, Z.; Zhang, C.; Pang, Y.; Liu, T. Bearing Capacities and Failure Behaviors of F-Type Socket Joint in Rectangular Pipe Jacking Tunnel. Appl. Sci. 2023, 13, 5442. https://doi.org/10.3390/app13095442

AMA Style

Xu Y, Huang Z, Zhang C, Pang Y, Liu T. Bearing Capacities and Failure Behaviors of F-Type Socket Joint in Rectangular Pipe Jacking Tunnel. Applied Sciences. 2023; 13(9):5442. https://doi.org/10.3390/app13095442

Chicago/Turabian Style

Xu, Youjun, Zhengdong Huang, Chao Zhang, Yuekui Pang, and Tianyu Liu. 2023. "Bearing Capacities and Failure Behaviors of F-Type Socket Joint in Rectangular Pipe Jacking Tunnel" Applied Sciences 13, no. 9: 5442. https://doi.org/10.3390/app13095442

APA Style

Xu, Y., Huang, Z., Zhang, C., Pang, Y., & Liu, T. (2023). Bearing Capacities and Failure Behaviors of F-Type Socket Joint in Rectangular Pipe Jacking Tunnel. Applied Sciences, 13(9), 5442. https://doi.org/10.3390/app13095442

Note that from the first issue of 2016, this journal uses article numbers instead of page numbers. See further details here.

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Bearing Capacities and Failure Behaviors of F-Type Socket Joint in Rectangular Pipe Jacking Tunnel

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