Analytical solutions for stresses and displacements around tunnels driven in cross-anisotropic rocks

A. M. Hefny, K. Y. Lo

Research output: Contribution to journalArticlepeer-review

51 Citations (Scopus)

Abstract

In this paper, closed-form solutions for the stresses and displacements around unlined circular tunnels excavated in an elastic, orthotropic (cross-anisotropic) medium are developed. The effect of both the elastic parameters characterizing the behaviour of the medium and the anisotropy of the initial stress system on the stresses and displacements induced are evaluated. An example of utilizing the theoretical solution for design analysis is given. For convenience of application, design charts are prepared for the determination of stresses and displacements for given values of initial stresses and the elastic parameters.

Original languageEnglish
Pages (from-to)161-177
Number of pages17
JournalInternational Journal for Numerical and Analytical Methods in Geomechanics
Volume23
Issue number2
DOIs
Publication statusPublished - 1999
Externally publishedYes

Keywords

  • Cross-anisotropy
  • Displacements
  • Elasticity
  • Stresses
  • Tunnel

ASJC Scopus subject areas

  • Computational Mechanics
  • Materials Science(all)
  • Geotechnical Engineering and Engineering Geology
  • Mechanics of Materials

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