Rock joints modeling and application to scale effects, improvements

F. Vallier, Yasuhiro Mitani, T. Esaki, M. Boulon

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

1 Citation (Scopus)

Abstract

Scale effect is a phenomenon of increasing importance in rock mechanics and particularly in the field of rock joints, and as large scale experiments are difficult to handle, numerical modeling can be considered as an alternative way to study the macro joints mechanical behavior. A meso joint constitutive behavior model including an original dilatancy angle evolution law and an original rupture mechanism has previously been presented. This paper presents some improvements made on the previously developed model for large shear displacement of rock joints, and presents some results obtained using an originally developed finite displacement concept, taking in account the local opening phenomenon and the physical interactions. The results indicate changes in the dilation curves, peak shear stress decrease, initial shear stiffness decrease and peak shear displacement increase with joint size for shearing at constant normal stress. The results show a stabilization of the scale effect for macro joints of more than two meters.

Original languageEnglish
Title of host publicationAmerican Rock Mechanics Association - 40th US Rock Mechanics Symposium, ALASKA ROCKS 2005
Subtitle of host publicationRock Mechanics for Energy, Mineral and Infrastructure Development in the Northern Regions
PublisherAmerican Rock Mechanics Association (ARMA)
ISBN (Print)9781604234541
Publication statusPublished - Jan 1 2005
Event40th US Rock Mechanics Symposium: Rock Mechanics for Energy, Mineral and Infrastructure Development in the Northern Regions, ALASKA ROCKS 2005 - Anchorage, United States
Duration: Jun 25 2005Jun 29 2005

Publication series

NameAmerican Rock Mechanics Association - 40th US Rock Mechanics Symposium, ALASKA ROCKS 2005: Rock Mechanics for Energy, Mineral and Infrastructure Development in the Northern Regions

Other

Other40th US Rock Mechanics Symposium: Rock Mechanics for Energy, Mineral and Infrastructure Development in the Northern Regions, ALASKA ROCKS 2005
CountryUnited States
CityAnchorage
Period6/25/056/29/05

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All Science Journal Classification (ASJC) codes

  • Geology
  • Geophysics
  • Geotechnical Engineering and Engineering Geology

Cite this

Vallier, F., Mitani, Y., Esaki, T., & Boulon, M. (2005). Rock joints modeling and application to scale effects, improvements. In American Rock Mechanics Association - 40th US Rock Mechanics Symposium, ALASKA ROCKS 2005: Rock Mechanics for Energy, Mineral and Infrastructure Development in the Northern Regions (American Rock Mechanics Association - 40th US Rock Mechanics Symposium, ALASKA ROCKS 2005: Rock Mechanics for Energy, Mineral and Infrastructure Development in the Northern Regions). American Rock Mechanics Association (ARMA).