Sensitivity analysis of the generalized Hoek-Brown failure criterion

P. Ván, B. Vásárhelyi

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

2 Citations (Scopus)

Abstract

Recently, the Hoek-Brown failure criterion is one of the mostly used failure criterion for rock mass. The constants of this failure criterion depend on, among the others, the Geological Strength Index (GSI) and the disturbance factor (D). The purpose of this paper is to analyze the sensitivity of the various constants of this equation, which depends on the GSI value and the D factor. The results show that the Hoek-Brown constants are very sensitive to both the GSI and the D factor, so to determine them exactly is very important for the rock engineering design. The sensitivity of the strength of the rock mass is also calculated. Thus these input parameters can be not determinable exactly, the results shows to take into account to use these relationships, mostly for risk analysis.

Original languageEnglish
Title of host publicationISRM International Symposium - EUROCK 2013
Editors Lydzba, Kwasniewski
PublisherInternational Society for Rock Mechanics
Pages835-840
Number of pages6
ISBN (Print)9781138000803
Publication statusPublished - Jan 1 2013
EventISRM International Symposium - EUROCK 2013 - Wroclaw, Poland
Duration: Oct 23 2013Oct 26 2013

Other

OtherISRM International Symposium - EUROCK 2013
CountryPoland
CityWroclaw
Period10/23/1310/26/13

Fingerprint

Sensitivity analysis
sensitivity analysis
Rocks
rock
Risk analysis
disturbance
engineering
index
parameter
risk analysis

ASJC Scopus subject areas

  • Geochemistry and Petrology

Cite this

Ván, P., & Vásárhelyi, B. (2013). Sensitivity analysis of the generalized Hoek-Brown failure criterion. In Lydzba, & Kwasniewski (Eds.), ISRM International Symposium - EUROCK 2013 (pp. 835-840). International Society for Rock Mechanics.

Sensitivity analysis of the generalized Hoek-Brown failure criterion. / Ván, P.; Vásárhelyi, B.

ISRM International Symposium - EUROCK 2013. ed. / Lydzba; Kwasniewski. International Society for Rock Mechanics, 2013. p. 835-840.

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

Ván, P & Vásárhelyi, B 2013, Sensitivity analysis of the generalized Hoek-Brown failure criterion. in Lydzba & Kwasniewski (eds), ISRM International Symposium - EUROCK 2013. International Society for Rock Mechanics, pp. 835-840, ISRM International Symposium - EUROCK 2013, Wroclaw, Poland, 10/23/13.
Ván P, Vásárhelyi B. Sensitivity analysis of the generalized Hoek-Brown failure criterion. In Lydzba, Kwasniewski, editors, ISRM International Symposium - EUROCK 2013. International Society for Rock Mechanics. 2013. p. 835-840
Ván, P. ; Vásárhelyi, B. / Sensitivity analysis of the generalized Hoek-Brown failure criterion. ISRM International Symposium - EUROCK 2013. editor / Lydzba ; Kwasniewski. International Society for Rock Mechanics, 2013. pp. 835-840
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