Two-scale analysis of tensile and compressive strengths of alternate layers of inclined rock masses

Takashi Kyoya, T. Ishida, Kenjiro Terada, Junji Kato, Shuji Moriguchi, Shinsuke Takase

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The method of micro-macro decoupling analyses is applied to assess the macroscopically anisotropic strengths of alternate layers of inclined rock masses, which are characterized by the layered structure of sedimentary soft rocks, in consideration of yield and tensile/compressive strengths of rocks at micro-scale. To evaluate the macroscopic strength characteristics, a series of numerical material testing, which is based on the mathematical homogenization theory, is conducted on a unit cell composed of mudstone and sandstone, each of which exhibits consolidation-pressure dependent plastic deformations as well as tension-cut-off-type damage behavior. Numerical examples are presented to demonstrate the performance of the presented strength assessment scheme in view of design and analysis of important structures encountered in practical applications.

Original languageEnglish
Title of host publicationISRM International Symposium - 8th Asian Rock Mechanics Symposium, ARMS 2014
Editors Kaneko, Kodama, Shimizu
PublisherInternational Society for Rock Mechanics
Pages429-437
Number of pages9
ISBN (Electronic)9784907430030
Publication statusPublished - 2014 Jan 1
Event8th Asian Rock Mechanics Symposium, ARMS 2014 - Sapporo, Japan
Duration: 2014 Oct 142014 Oct 16

Publication series

NameISRM International Symposium - 8th Asian Rock Mechanics Symposium, ARMS 2014

Other

Other8th Asian Rock Mechanics Symposium, ARMS 2014
CountryJapan
CitySapporo
Period14/10/1414/10/16

Keywords

  • Alternate layers of rock mass
  • Damage
  • Decoupling multi-scale analysis

ASJC Scopus subject areas

  • Geophysics
  • Geochemistry and Petrology

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