Deformation and fracturing process of discontinuous rock masses and damage mechanics

T. Kyoya, Y. Ichikawa, T. Kawamoto

Research output: Contribution to conferencePaperpeer-review

Abstract

A damage mechanics theory for discontinuous rock mass is proposed and applied to an excavation problems of underground cavern of three different shapes for a hydro-electric power station. Distributed joints in rock mass are characterized by a second-order symmetric tensor, called the damage tensor which is evaluated by a technique of three-dimensional photographic surveying with a micro-computer system. Mechanical effects of joints are represented by an additional force vector by introducing the net stress which is derived from the stress vector acting on the effective part of the material body. Results of the damage analysis are compared with those by a conventional analysis, and the influences of joints on the stability of each shaped cavern is checked.

Original languageEnglish
Pages1031-1038
Number of pages8
Publication statusPublished - 1987 Jan 1
Externally publishedYes
Event6th International Society for Rock Mechanics and Rock Engineering Congress, ISRM 1987 - Montreal, Canada
Duration: 1987 Aug 301987 Sep 3

Other

Other6th International Society for Rock Mechanics and Rock Engineering Congress, ISRM 1987
CountryCanada
CityMontreal
Period87/8/3087/9/3

ASJC Scopus subject areas

  • Geophysics
  • Geochemistry and Petrology

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