Time-dependent structural reliability analysis of shield tunnels in coastal regions

Z. He, Mitsuyoshi Akiyama, C. He, D. M. Frangopol

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Deterioration of RC structures due to chloride-induced reinforcement corrosion is a common problem in an aggressive environment. Especially for shield tunnels in coastal regions, structures undergo a complex and rapid deteriorating process under the coupling effects of multiple mechanical and environmental stressors during their life-cycle, such as high hydrostatic pressure and aggressive agents. The very few existing studies on the deterioration processes of shield tunnels, especially considering the coupling effects, were not generally oriented to accurately assess the lifetime structural performance of these tunnels. In this paper, the chloride transport process in segmental linings with the impact of hydrostatic pressure is illustrated, two transport approaches of chloride are suggested, and the time to corrosion initiation is predicted. Finally, a Monte Carlo Simulation is used in conjunction with a time-dependent failure probability estimation associated with the deteriorated structural performance due to the steel corrosion.

Original languageEnglish
Title of host publicationLife-Cycle Analysis and Assessment in Civil Engineering
Subtitle of host publicationTowards an Integrated Vision - Proceedings of the 6th International Symposium on Life-Cycle Civil Engineering, IALCCE 2018
EditorsDan M. Frangopol, Robby Caspeele, Luc Taerwe
PublisherCRC Press/Balkema
Pages1031-1038
Number of pages8
ISBN (Print)9781138626331
Publication statusPublished - 2019 Jan 1
Event6th International Symposium on Life-Cycle Civil Engineering, IALCCE 2018 - Ghent, Belgium
Duration: 2018 Oct 282018 Oct 31

Publication series

NameLife-Cycle Analysis and Assessment in Civil Engineering: Towards an Integrated Vision - Proceedings of the 6th International Symposium on Life-Cycle Civil Engineering, IALCCE 2018

Conference

Conference6th International Symposium on Life-Cycle Civil Engineering, IALCCE 2018
CountryBelgium
CityGhent
Period18/10/2818/10/31

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Safety, Risk, Reliability and Quality

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  • Cite this

    He, Z., Akiyama, M., He, C., & Frangopol, D. M. (2019). Time-dependent structural reliability analysis of shield tunnels in coastal regions. In D. M. Frangopol, R. Caspeele, & L. Taerwe (Eds.), Life-Cycle Analysis and Assessment in Civil Engineering: Towards an Integrated Vision - Proceedings of the 6th International Symposium on Life-Cycle Civil Engineering, IALCCE 2018 (pp. 1031-1038). (Life-Cycle Analysis and Assessment in Civil Engineering: Towards an Integrated Vision - Proceedings of the 6th International Symposium on Life-Cycle Civil Engineering, IALCCE 2018). CRC Press/Balkema.