Physical and particle flow modeling of jointed rock block behavior under uniaxial loading

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

1 Scopus citations

Abstract

Laboratory experiments and numerical simulations, using Particle Flow Code (PFC3D), were performed to study the behavior of jointed blocks of model material under uniaxial loading. The fracture tensor component in a given direction is used to quantify the combined directional effect of joint geometry parameters including joint density, orientation and size distributions, and the number of joint sets. Both the laboratory experiments and the numerical simulations showed that the uniaxial block strength decreases in a nonlinear manner with increasing values of the fracture tensor component. Joint geometry configuration was also observed to control the mode of failure of the jointed blocks and three modes of failure were identified, namely (a) tensile splitting through the intact material, (b) either only shear failure along the joint planes or both shear and tensile failure with respect to the joint planes and, (c) mixed mode failure involving both the failure mechanisms in (a) and (b). It has also been shown that with very careful parameter calibration procedures, PFC3D could be used to model the strength behavior of jointed blocks of rock under uniaxial loading.

Original languageEnglish (US)
Title of host publicationDC Rocks 2001 - 38th U.S. Symposium on Rock Mechanics (USRMS)
Editors Elsworth, Tinucci, Heasley
PublisherAmerican Rock Mechanics Association (ARMA)
Pages1509-1516
Number of pages8
ISBN (Print)9026518277, 9789026518270
StatePublished - 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

ASJC Scopus subject areas

  • Geophysics
  • Geochemistry and Petrology

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    Malama, B., & Kulatilake, P. H. S. W. (2001). Physical and particle flow modeling of jointed rock block behavior under uniaxial loading. In Elsworth, Tinucci, & Heasley (Eds.), DC Rocks 2001 - 38th U.S. Symposium on Rock Mechanics (USRMS) (pp. 1509-1516). (DC Rocks 2001 - 38th U.S. Symposium on Rock Mechanics (USRMS)). American Rock Mechanics Association (ARMA).