Study of the Effect of Joint Trace Lengths on Failure Strength of Rock

Yun Jie Zhang; Tao Xu

doi:10.4028/www.scientific.net/AMM.501-504.603

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 501-504Study of the Effect of Joint Trace Lengths on...

Study of the Effect of Joint Trace Lengths on Failure Strength of Rock

Abstract:

Numerical simulations the different rock sample in the uniaxial compression have been conducted using Rock Failure Process Analysis program (RFPA^2D) to evaluate the effects of joint trace lengths on the overall mechanical behaviour of jointed rock masses in this paper. Numerically simulated stress-strain curve, peak stress, peak strain and failure patterns were compared with the corresponding experimental results. We found that for a series of partially-spanning joint geometries with the same joint orientation, the projected area will be proportional to the square of the trace length. Thus, the relationship between compressive strength and partially-spanning joint geometry for the tests carried out to explore the influence of joint trace length may be expressed as a linear correlation between compressive strength and projected area.Numerical simulations agree well with experimental results.

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Periodical:

Applied Mechanics and Materials (Volumes 501-504)

Pages:

603-606

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.501-504.603

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Online since:

January 2014

Authors:

Yun Jie Zhang, Tao Xu*

Keywords:

Compressive Strength, Failure Pattern, Joint Trace Lengths

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