Paper Title:
Statistical Analysis on Strength of Rock Based on YAI Concept
  Abstract

In this paper, a new concept, YAI (yielding approach index), is firstly proposed to estimate the safety differences of rock and rockmass whose stress states are close to yielding. Secondly, in order to describe the intrinsic heterogeneity of strength of the same rock, the safety parameter ω, which is the phase complementary parameter of YAI, is supposed to be a stochastic variable in this paper and conform to the Weibull’s distribution. By analyzing the triaxial test data of five types of rocks, it can be found that ω as a stochastic variable evidently conforms to the Weibull’s distribution. Results in this paper give an important and useful reference to the safety analysis for geotechnical engineering.

  Info
Periodical
Key Engineering Materials (Volumes 340-341)
Edited by
N. Ohno and T. Uehara
Pages
1157-1162
DOI
10.4028/www.scientific.net/KEM.340-341.1157
Citation
C. Q. Zhang, X. T. Feng, H. Zhou, "Statistical Analysis on Strength of Rock Based on YAI Concept", Key Engineering Materials, Vols. 340-341, pp. 1157-1162, 2007
Online since
June 2007
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Price
$32.00
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