Feasibility study on the influence of discontinuities on anisotropic rock masses regarding the stiffness

Andreas Anjan Buyer, Lukas Gottsbacher, Wulf Schubert

Publikation: Beitrag in Buch/Bericht/KonferenzbandBeitrag in einem Konferenzband

Abstract

For the design of rock engineering projects, rock mass parameters are usually determined by the use of classification systems (Q, GSI, RMR, etc.). A homogeneous rock mass with reduced parameters via empirical relationships is generated, and the influence of the anisotropy is lost during the process. The influence of discrete discontinuities on the global rock mass stiffness is investigated in this feasibility study and the results compared to empirical solutions based on the GSI. The results show that with one joint set oriented perpendicular to the direction of loading, the block volume is rather insignificant for the resulting E rm ; whereas the joint normal spacing parallel to the direction of loading and the block shape are the most influencing factors. In the cases, with the block volume and joint condition as input parameters, the E rm is significantly underestimated, while the E rm , based on RQD and JCond 89 still fits in the range of the numerical results. However, the numerical investigations are so far limited on an orthogonal oriented joint network under uniaxial compression and further investigations are necessary.

Originalspracheenglisch
TitelGeomechanics and Geodynamics of Rock Masses
Redakteure/-innenVladimir Litvinenko
ErscheinungsortSt. Petersburg
Herausgeber (Verlag)CRC Press/Balkema
Seiten227-234
Seitenumfang8
Band1
ISBN (Print)9781138616455
PublikationsstatusVeröffentlicht - 22 Mai 2018
VeranstaltungInternational European Rock Mechanics Symposium, EUROCK 2018 - Saint Petersburg, Russland
Dauer: 22 Mai 201826 Mai 2018

Konferenz

KonferenzInternational European Rock Mechanics Symposium, EUROCK 2018
LandRussland
OrtSaint Petersburg
Zeitraum22/05/1826/05/18

ASJC Scopus subject areas

  • !!Geochemistry and Petrology

Fingerprint Untersuchen Sie die Forschungsthemen von „Feasibility study on the influence of discontinuities on anisotropic rock masses regarding the stiffness“. Zusammen bilden sie einen einzigartigen Fingerprint.

  • Dieses zitieren

    Buyer, A. A., Gottsbacher, L., & Schubert, W. (2018). Feasibility study on the influence of discontinuities on anisotropic rock masses regarding the stiffness. in V. Litvinenko (Hrsg.), Geomechanics and Geodynamics of Rock Masses (Band 1, S. 227-234). St. Petersburg: CRC Press/Balkema.