Global sensitivity analysis for transformation of Hoek-brown failure criterion for rock mass

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F18%3APU130021" target="_blank" >RIV/00216305:26110/18:PU130021 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.3846/jcem.2018.5194" target="_blank" >http://dx.doi.org/10.3846/jcem.2018.5194</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3846/jcem.2018.5194" target="_blank" >10.3846/jcem.2018.5194</a>

Result language

angličtina

Original language name

Global sensitivity analysis for transformation of Hoek-brown failure criterion for rock mass

Original language description

A variety of engineering activities require reliable evaluation of rock strength. For instance, the stability of rock slopes depends on structural geology of rock massif in which the slope is excavated. Hoek-Brown (HB) failure criterion applied in rock design practice introduces factors based on the properties of jointed rock. The non-linear finite element safety calculation is conveniently used for calculation safety the factor of slope stability. The Mohr-Coulomb (MC) failure (strength) criterion for soil is widely applied in geotechnical design. Therefore, the appropriate transformation from HB to the equivalent MC, employing angle of shearing resistance φ and cohesion c, is necessary. This article studies the effect of jointed rock massif properties on the transformed MC parameters by using Sobol’s global sensitivity analysis (SSA) and HB transformation equations. Statistical parameters needed for the evaluation of sensitivity analysis are processed using classical statistical methods upon the emulation of Latin Hypercube Sampling simulation methods. Developed and adapted by authors techniques are illustrated by processing real rock investigation data from survey of the trachyte massif located in the Czech Republic. The first and higher order effects of random inputs are identified using SSA. It is illustrated that the effects of inputs on the MC parameters varies significantly depending on the discontinuity distribution and height of the slope.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

20102 - Construction engineering, Municipal and structural engineering

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2018

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of civil engineering and management

ISSN

1392-3730

e-ISSN

1822-3605

Volume of the periodical

24

Issue of the periodical within the volume

5

Country of publishing house

LT - LITHUANIA

Number of pages

9

Pages from-to

390-398

UT code for WoS article

000446022400003

EID of the result in the Scopus database

2-s2.0-85055341098