Unification of Hoek-Brown Criterion on the Basis of United Strength Theory

Yuan Li; Qi Liang Liu; Qing Chi Cai

doi:10.4028/www.scientific.net/AMM.501-504.415

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 501-504Unification of Hoek-Brown Criterion on the Basis...

Unification of Hoek-Brown Criterion on the Basis of United Strength Theory

Abstract:

Based on twin failure mechanism of fracture and shear , the bilinear transitional strength decomposition formula reflecting the nonlinear strength of rock material is proposed,.The decomposed brittle shear formula is integrated and finally the unified strength theory formula characterized by nonlinearity of Hoek-Brown criterion is established. It makes the unified strength theory characterized by nonlinearity of empirical strength criterion, rock mass strength reduction, etc. Besides, it contributes to promote the accuracy and applicability of unified strength theory in rock strength and rock mass strength,especially for the hard rock failure analysis.

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Periodical:

Applied Mechanics and Materials (Volumes 501-504)

Pages:

415-418

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.501-504.415

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Online since:

January 2014

Authors:

Yuan Li, Qi Liang Liu*, Qing Chi Cai

Keywords:

Brittle-Shear, Hoek-Brown Criterion, United Strength Theory

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References

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