Uniaxial Compression Test and Numerical Simulation of Stratified Biotite Granulite

doi:10.12068/j.issn.1005-3026.2015.11.025

Abstract

Abstract: The transversely isotropic rock samples with different dip angles were studied under uniaxial compression using the bonded particle model (BPM) of PFC2D. The strength and failure patterns were explored and compared with the experimental results. The results showed that the mechanical properties are affected significantly when the ratio of joint contact bond strength (both shear and normal) to rock contact bond strength is below 15%. The failure pattern is similar to the experimental result when the ratio falls into the range of approxiamtely 2%~4%. The uniaxial compressive strength decreases firstly at a certain value with the increase of joint angles and increases subsequently with a U-shape. The results can provide a reference for jointed rock mass with PFC2D code.

Key words: stratified rock, anisotropy, failure pattern, PFC2D, experimental test, numerical simulation

CLC Number:

TU45

WANG Pei-tao ， YANG Tian-hong， YU Qing-lei， SHI Wen-hao. Uniaxial Compression Test and Numerical Simulation of Stratified Biotite Granulite[J]. Journal of Northeastern University Natural Science, 2015, 36(11): 1633-1637.

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