Paper Title:
Effect of Non-Homogeneity on Limit Bearing Capacity of Rock Block
  Abstract

Rock is a typical non-homogeneous material. The behavior of a rock block under compression and the process of micro-fracture in that block are phenomena of considerable interest in understanding the strength characterization of brittle rock. In this study, the effect of the non-homogeneity on limit bearing capacity of rock block based on Rock Elasto-Plastic Failure Process Analysis code (REPFPA) are simulated and investigated. Numerical simulations find out that there exists a functional relation between the heterogeneity coefficient and the limit bearing capacity of rock block. For specimens with the same heterogeneity, however, the numerical simulations show that the failure modes depend greatly on the crack initiation location, which is found to be sensitive to the local disorder features within the specimen. In addition, the characteristics of acoustic emissions with the changing of heterogeneity coefficient were also found. These identifications are crucial for better understanding and interpreting the experimental results and consequently, improve our concepts in design or analysis of rock engineering structures.

  Info
Periodical
Advanced Materials Research (Volumes 33-37)
Edited by
Wei Yang, Mamtimin Geni, Tiejun Wang and Zhuo Zhuang
Pages
631-638
DOI
10.4028/www.scientific.net/AMR.33-37.631
Citation
L. Song, T. Xu, Y. Y. Xie, "Effect of Non-Homogeneity on Limit Bearing Capacity of Rock Block", Advanced Materials Research, Vols. 33-37, pp. 631-638, 2008
Online since
March 2008
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Price
$32.00
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