Estimating Equivalent Mohr-Coulomb Strength Parameters Based on the Sheorey Rock Mass Strength Criterion

doi:10.3969/j.issn.1001-5485.2014.11.0082014,31(11):38-41,46

JOURNAL OF YANGTZE RIVER SCIENTIFIC RESEARCH INSTI ›› 2014, Vol. 31 ›› Issue (11): 38-41.DOI: 10.3969/j.issn.1001-5485.2014.11.0082014,31(11):38-41,46

• CHARACTERISTICS AND TESTS OF ROCK MECHANICS • Previous Articles Next Articles

Estimating Equivalent Mohr-Coulomb Strength Parameters Based on the Sheorey Rock Mass Strength Criterion

ZHENG Xing,ZHANG Sheng

Power China Guiyang Engineering Corporation, Guiyang 550081, China

Received:2014-08-13 Revised:2014-11-05 Published:2014-11-01 Online:2014-11-05

Abstract

Abstract: According to the principle of fitting non-linear strength criterion with linear M-C criterion in σ₁-σ₃ plane, we derived the equivalent M-C strength parameters of the Sheorey strength criterion which is based on the RMR system by use of the least square method. We also present the general formulas of the equivalent M-C strength parameters to be used in the evaluation of strength and stability of rock mass. A calculation example is given to compare the M-C strength parameters between Sheorey criterion and Hoek-Brown criterion. Results reveal that the strength parameters of both criteria are well consistent.

Key words: rock mechanics, Sheorey strength criterion, Mohr-Coulomb criterion, least square method, equivalent strength parameters

CLC Number:

TU45

ZHENG Xing,ZHANG Sheng. Estimating Equivalent Mohr-Coulomb Strength Parameters Based on the Sheorey Rock Mass Strength Criterion[J]. JOURNAL OF YANGTZE RIVER SCIENTIFIC RESEARCH INSTI, 2014, 31(11): 38-41.

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Estimating Equivalent Mohr-Coulomb Strength Parameters Based on the Sheorey Rock Mass Strength Criterion

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