Physical and analytical simulation of in-situ shear test on steeply dipped rock masses

T. Mizokami, K. Ikusada, T. Esaki, Y. Mitani

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

1 Citation (Scopus)

Abstract

Physical model tests and their numerical simulations of in-situ rock shear test are carried out to reveal shear behaviour of discontinuous rock masses. Particularly, a comparative study of physical and distinct element simulation of in-situ shear test on steeply dipped stratified discontinuous rock masses are made. In the physical model test where dip angle of the major discontinuity is 70 degrees from horizontal plane, shear stress - displacement relation agree with that of the in-situ shear test. The resultant shear behaviour is observed to be ductile and a kinked yielding point appears before failure. However, influence of the discontinuity on the shear strength is small. It is clarified that the ductile shear deformation of steeply dipped stratified rock masses may be caused by progressive failures. The DEM analysis also successfully simulates the shear behaviour of physical model test. The failure mechanism is quite well revealed as the results are comparable.

Original languageEnglish
Title of host publicationDC Rocks 2001 - 38th U.S. Symposium on Rock Mechanics (USRMS)
Editors Elsworth, Tinucci, Heasley
PublisherAmerican Rock Mechanics Association (ARMA)
Pages1445-1450
Number of pages6
ISBN (Print)9026518277, 9789026518270
Publication statusPublished - Jan 1 2001
Event38th U.S. Symposium on Rock Mechanics, DC Rocks 2001 - Washington, United States
Duration: Jul 7 2001Jul 10 2001

Publication series

NameDC Rocks 2001 - 38th U.S. Symposium on Rock Mechanics (USRMS)

Other

Other38th U.S. Symposium on Rock Mechanics, DC Rocks 2001
CountryUnited States
CityWashington
Period7/7/017/10/01

All Science Journal Classification (ASJC) codes

  • Geophysics
  • Geochemistry and Petrology

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  • Cite this

    Mizokami, T., Ikusada, K., Esaki, T., & Mitani, Y. (2001). Physical and analytical simulation of in-situ shear test on steeply dipped rock masses. In Elsworth, Tinucci, & Heasley (Eds.), DC Rocks 2001 - 38th U.S. Symposium on Rock Mechanics (USRMS) (pp. 1445-1450). (DC Rocks 2001 - 38th U.S. Symposium on Rock Mechanics (USRMS)). American Rock Mechanics Association (ARMA).