Mechanism of discontinuous behavior of rock mass during underground cavern excavation

Tsugio Yoshida, Yuzo Ohnishi, Satoshi Nishiyama

Research output: Contribution to journalReview article

2 Citations (Scopus)

Abstract

Various kinds of measurements were carried out during excavation of two large underground caverns to estimate rock behavior as a discontinuous material. As a result, rock behavior as a discontinuous material was estimated in detail, such as characteristics of crack propagation, displacement and stress redistribution. In particular, it was found that characteristics of displacement and stress redistribution were very remarkable in some areas and that crack propagation was also remarkable in the area. Through the measurements, it was suggested that the sliding of discontinuities were related to the discontinuous behavior. So with a simulation in which the discontinuities were modeled, the influence of the sliding of the discontinuity to crack propagation, displacement and stress redistribution is discussed.

Original languageEnglish
Pages (from-to)501-506
Number of pages6
JournalZairyo/Journal of the Society of Materials Science, Japan
Volume55
Issue number5
DOIs
Publication statusPublished - May 1 2006
Externally publishedYes

Keywords

  • Crack propagation
  • Field measurement
  • Rock mass
  • Stress redistribution
  • Underground cavern

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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