A modified failure criterion with scale effect parameter

H. Masoumi, P. Hagan, S. Saydam

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Abstract

The design of structures on or within a rock mass requires an estimate of the strength of the intact rock blocks within the mass. These blocks of rock can be many orders of magnitude greater in scale than the core samples typically tested. Including the scale effects into a failure criterion is important for better estimation of the rock strength. In this paper a modified failure criterion with scale effect parameter was developed based on the model proposed by Christensen [1]. The modification process was conducted based on the scale effect equations proposed for UCS and point load results and it was shown that for one particular sandstone the strength parameter of the modified failure criterion is scale independent.

Original languageEnglish
Title of host publication47th US Rock Mechanics / Geomechanics Symposium 2013
Pages2986-2990
Number of pages5
Volume4
Publication statusPublished - 2013
Externally publishedYes
EventUS Rock Mechanics / Geomechanics Symposium 2013 - San Francisco, United States of America
Duration: 23 Jun 201326 Jun 2013
Conference number: 47th
http://www.proceedings.com/19335.html

Conference

ConferenceUS Rock Mechanics / Geomechanics Symposium 2013
CountryUnited States of America
CitySan Francisco
Period23/06/1326/06/13
Internet address

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