An investigation into the behaviour of jointed tunnel lining

Ashraf Mohamed Hefny, Heng Choon Chua

Research output: Contribution to journalArticlepeer-review

29 Citations (Scopus)

Abstract

This paper presents the results of a numerical study that has been performed to investigate the factors affecting the maximum bending moment induced in a jointed tunnel lining. The effects of joint number and orientation have been studied in detail. Observations of the results demonstrate that increasing joint number reduces the maximum bending moment induced in the lining. However, the effects of joint number and orientation on the maximum bending moment induced in the tunnel lining become insignificant once the critical joint number has been exceeded. In addition, the sensitivity of the joint number to various ground conditions, tunnel depths and lining flexibility are also highlighted. From the parametric studies, a simple design methodology is proposed to facilitate the determination of maximum bending moment induced in a jointed tunnel lining without incorporating joints in the analysis.

Original languageEnglish
Pages (from-to)428
Number of pages1
JournalTunnelling and Underground Space Technology
Volume21
Issue number3-4
DOIs
Publication statusPublished - 2006
Externally publishedYes

ASJC Scopus subject areas

  • Building and Construction
  • Geotechnical Engineering and Engineering Geology

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