A computer method for stability analysis of caverns in jointed rock

Ted Belytschko*, Michael Plesha, Charles Dowding

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

36 Scopus citations

Abstract

A simple rigid block model has been developed for analysing the stability of caverns and tunnels in jointed rock. Rigid block interactions are idealized as linear edge‐to‐edge contacts with a zero joint tension constraint and a Mohr‐Coulomb friction law. In the method, the minimum friction angle for stability is determined by sequentially eliminating tension and then minimizing the shear. It is demonstrated through examples that the minimum joint friction angle which results in a stable configuration is independent of the stiffness of the joint, and depends only upon the loading and geometry of the jointing and cavern. This insensitivity of stability to the normal and tangential joint stiffnesses, which can be difficult to obtain, is very useful for design purposes.

Original languageEnglish (US)
Pages (from-to)473-492
Number of pages20
JournalInternational Journal for Numerical and Analytical Methods in Geomechanics
Volume8
Issue number5
DOIs
StatePublished - Jan 1 1984

ASJC Scopus subject areas

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

Fingerprint Dive into the research topics of 'A computer method for stability analysis of caverns in jointed rock'. Together they form a unique fingerprint.

Cite this