Risk assessment and optimization of supporting structure for a new recyclable pipe jacking shaft during excavation process

Research output: Contribution to journalArticleResearchpeer review

Authors

  • Chao Zhang
  • Yunhui Zhang
  • Yangyang Xia
  • Hongyuan Fang
  • Peng Zhao
  • Cuixia Wang
  • Li Bin Li
  • Yanhui Pan
  • Zhihui Zou
  • Timon Rabczuk
  • Xiaoying Zhuang

External Research Organisations

  • Zhengzhou University
  • National Local Joint Engineering Laboratory of Major Infrastructure Testing and Rehabilitation Technology
  • Collaborative Innovation Center for disaster prevention and control of Underground Engineering
  • Construction Second Engineering Bureau Ltd. Investment Branch
  • Huanghuai University (HHU)
  • University of Texas at Austin
  • Bauhaus-Universität Weimar
  • SAFEKEY Engineering Technology (Zhengzhou), Ltd.
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Details

Original languageEnglish
Pages (from-to)211-224
Number of pages14
JournalProcess Safety and Environmental Protection
Volume172
Early online date11 Feb 2023
Publication statusPublished - Apr 2023

Abstract

Pipe jacking shaft is an important part of pipe jacking construction, its support structure can support the soil around the pipe jacking shaft to prevent soil destabilization and collapse and ensure construction safety. Most of the existing support structures of pipe jacking shafts are made of cement materials, which have the advantages of high bearing capacity, good integrity and easy access to materials, but also have inherent disadvantages such as high construction cost, long construction period, difficulty in dismantling, and inability to reuse demolition waste, which are not conducive to the sustainable construction. Based on the concept of sustainable construction, this paper proposes a reusable support structure for pipe jacking shafts, which is made of H-shape steel, steel plate and water stop by welding or bolting assembly, easy to install and disassemble, and can be recycled and reused. In order to verify the bearing performance of the new support structure and evaluate the risk of destabilization during excavation, finite element numerical simulation and full-scale test were carried out, and gives the safety design parameters of new supporting structures by using orthogonal tests. The results show that the finite element numerical simulation results are basically consistent with the full-scale test results, further proving that the numerical simulation results can be used to guide the design and construction feasibility of the support structure during the excavation of the pipe jacking shaft. The construction machinery has a great effect on the safety and stability of the support structure during excavation, and the distance between the construction machinery and the pipe jacking shaft should be reasonably controlled to avoid the risk of structural instability. The results of the sensitivity analysis show that the steel type of the support structure and the spacing of the piles are the two most important factors, which play a key role in the safety and stability of the support structure and should be highly noted in the design and calculation process.

Keywords

    Design optimization, Finite element simulation, Full-scale test, Recyclable supporting structure, Risk assessment

ASJC Scopus subject areas

Cite this

Risk assessment and optimization of supporting structure for a new recyclable pipe jacking shaft during excavation process. / Zhang, Chao; Zhang, Yunhui; Xia, Yangyang et al.
In: Process Safety and Environmental Protection, Vol. 172, 04.2023, p. 211-224.

Research output: Contribution to journalArticleResearchpeer review

Zhang, C, Zhang, Y, Xia, Y, Fang, H, Zhao, P, Wang, C, Bin Li, L, Pan, Y, Zou, Z, Rabczuk, T & Zhuang, X 2023, 'Risk assessment and optimization of supporting structure for a new recyclable pipe jacking shaft during excavation process', Process Safety and Environmental Protection, vol. 172, pp. 211-224. https://doi.org/10.1016/j.psep.2023.02.024
Zhang, C., Zhang, Y., Xia, Y., Fang, H., Zhao, P., Wang, C., Bin Li, L., Pan, Y., Zou, Z., Rabczuk, T., & Zhuang, X. (2023). Risk assessment and optimization of supporting structure for a new recyclable pipe jacking shaft during excavation process. Process Safety and Environmental Protection, 172, 211-224. https://doi.org/10.1016/j.psep.2023.02.024
Zhang C, Zhang Y, Xia Y, Fang H, Zhao P, Wang C et al. Risk assessment and optimization of supporting structure for a new recyclable pipe jacking shaft during excavation process. Process Safety and Environmental Protection. 2023 Apr;172:211-224. Epub 2023 Feb 11. doi: 10.1016/j.psep.2023.02.024
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title = "Risk assessment and optimization of supporting structure for a new recyclable pipe jacking shaft during excavation process",
abstract = "Pipe jacking shaft is an important part of pipe jacking construction, its support structure can support the soil around the pipe jacking shaft to prevent soil destabilization and collapse and ensure construction safety. Most of the existing support structures of pipe jacking shafts are made of cement materials, which have the advantages of high bearing capacity, good integrity and easy access to materials, but also have inherent disadvantages such as high construction cost, long construction period, difficulty in dismantling, and inability to reuse demolition waste, which are not conducive to the sustainable construction. Based on the concept of sustainable construction, this paper proposes a reusable support structure for pipe jacking shafts, which is made of H-shape steel, steel plate and water stop by welding or bolting assembly, easy to install and disassemble, and can be recycled and reused. In order to verify the bearing performance of the new support structure and evaluate the risk of destabilization during excavation, finite element numerical simulation and full-scale test were carried out, and gives the safety design parameters of new supporting structures by using orthogonal tests. The results show that the finite element numerical simulation results are basically consistent with the full-scale test results, further proving that the numerical simulation results can be used to guide the design and construction feasibility of the support structure during the excavation of the pipe jacking shaft. The construction machinery has a great effect on the safety and stability of the support structure during excavation, and the distance between the construction machinery and the pipe jacking shaft should be reasonably controlled to avoid the risk of structural instability. The results of the sensitivity analysis show that the steel type of the support structure and the spacing of the piles are the two most important factors, which play a key role in the safety and stability of the support structure and should be highly noted in the design and calculation process.",
keywords = "Design optimization, Finite element simulation, Full-scale test, Recyclable supporting structure, Risk assessment",
author = "Chao Zhang and Yunhui Zhang and Yangyang Xia and Hongyuan Fang and Peng Zhao and Cuixia Wang and {Bin Li}, Li and Yanhui Pan and Zhihui Zou and Timon Rabczuk and Xiaoying Zhuang",
note = "Funding Information: This research was supported by the National Key Research and Development Program of China (No. 2022YFC3801000 ), the National Natural Science Foundation of China (No. 52178368, 51978630, 51909242, 52009125 ), the Program for Science and Technology Innovation Talents in Universities of Henan Province (No. 23HASTIT007 ), the Science and Technology Innovation Team of Colleges and Universities in Henan Province ( 23IRTSTHN004 ), the First-class Project Special Funding of Yellow River Laboratory ( YRL22LT07 ), the China Postdoctoral Science Foundation (No. 2022TQ0305, 2020TQ0285 ), Henan Post-doctoral Foundation (No. 202001016 ), and Key Scientific Research Projects of Colleges and Universities in Henan Province (No. 21A570007 ), for which the authors are grateful acknowledged. ",
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T1 - Risk assessment and optimization of supporting structure for a new recyclable pipe jacking shaft during excavation process

AU - Zhang, Chao

AU - Zhang, Yunhui

AU - Xia, Yangyang

AU - Fang, Hongyuan

AU - Zhao, Peng

AU - Wang, Cuixia

AU - Bin Li, Li

AU - Pan, Yanhui

AU - Zou, Zhihui

AU - Rabczuk, Timon

AU - Zhuang, Xiaoying

N1 - Funding Information: This research was supported by the National Key Research and Development Program of China (No. 2022YFC3801000 ), the National Natural Science Foundation of China (No. 52178368, 51978630, 51909242, 52009125 ), the Program for Science and Technology Innovation Talents in Universities of Henan Province (No. 23HASTIT007 ), the Science and Technology Innovation Team of Colleges and Universities in Henan Province ( 23IRTSTHN004 ), the First-class Project Special Funding of Yellow River Laboratory ( YRL22LT07 ), the China Postdoctoral Science Foundation (No. 2022TQ0305, 2020TQ0285 ), Henan Post-doctoral Foundation (No. 202001016 ), and Key Scientific Research Projects of Colleges and Universities in Henan Province (No. 21A570007 ), for which the authors are grateful acknowledged.

PY - 2023/4

Y1 - 2023/4

N2 - Pipe jacking shaft is an important part of pipe jacking construction, its support structure can support the soil around the pipe jacking shaft to prevent soil destabilization and collapse and ensure construction safety. Most of the existing support structures of pipe jacking shafts are made of cement materials, which have the advantages of high bearing capacity, good integrity and easy access to materials, but also have inherent disadvantages such as high construction cost, long construction period, difficulty in dismantling, and inability to reuse demolition waste, which are not conducive to the sustainable construction. Based on the concept of sustainable construction, this paper proposes a reusable support structure for pipe jacking shafts, which is made of H-shape steel, steel plate and water stop by welding or bolting assembly, easy to install and disassemble, and can be recycled and reused. In order to verify the bearing performance of the new support structure and evaluate the risk of destabilization during excavation, finite element numerical simulation and full-scale test were carried out, and gives the safety design parameters of new supporting structures by using orthogonal tests. The results show that the finite element numerical simulation results are basically consistent with the full-scale test results, further proving that the numerical simulation results can be used to guide the design and construction feasibility of the support structure during the excavation of the pipe jacking shaft. The construction machinery has a great effect on the safety and stability of the support structure during excavation, and the distance between the construction machinery and the pipe jacking shaft should be reasonably controlled to avoid the risk of structural instability. The results of the sensitivity analysis show that the steel type of the support structure and the spacing of the piles are the two most important factors, which play a key role in the safety and stability of the support structure and should be highly noted in the design and calculation process.

AB - Pipe jacking shaft is an important part of pipe jacking construction, its support structure can support the soil around the pipe jacking shaft to prevent soil destabilization and collapse and ensure construction safety. Most of the existing support structures of pipe jacking shafts are made of cement materials, which have the advantages of high bearing capacity, good integrity and easy access to materials, but also have inherent disadvantages such as high construction cost, long construction period, difficulty in dismantling, and inability to reuse demolition waste, which are not conducive to the sustainable construction. Based on the concept of sustainable construction, this paper proposes a reusable support structure for pipe jacking shafts, which is made of H-shape steel, steel plate and water stop by welding or bolting assembly, easy to install and disassemble, and can be recycled and reused. In order to verify the bearing performance of the new support structure and evaluate the risk of destabilization during excavation, finite element numerical simulation and full-scale test were carried out, and gives the safety design parameters of new supporting structures by using orthogonal tests. The results show that the finite element numerical simulation results are basically consistent with the full-scale test results, further proving that the numerical simulation results can be used to guide the design and construction feasibility of the support structure during the excavation of the pipe jacking shaft. The construction machinery has a great effect on the safety and stability of the support structure during excavation, and the distance between the construction machinery and the pipe jacking shaft should be reasonably controlled to avoid the risk of structural instability. The results of the sensitivity analysis show that the steel type of the support structure and the spacing of the piles are the two most important factors, which play a key role in the safety and stability of the support structure and should be highly noted in the design and calculation process.

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