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The Scientific World Journal
Volume 2014, Article ID 735497, 7 pages
http://dx.doi.org/10.1155/2014/735497
Research Article

Numerical Built-In Method for the Nonlinear JRC/JCS Model in Rock Joint

Institute of Mineral Resources, Chinese Academy of Geological Sciences, Beijing 100037, China

Received 15 November 2013; Accepted 1 January 2014; Published 11 February 2014

Academic Editors: A. Esmaeily and A. Rodríguez-Castellanos

Copyright © 2014 Qunyi Liu et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The joint surface is widely distributed in the rock, thus leading to the nonlinear characteristics of rock mass strength and limiting the effectiveness of the linear model in reflecting characteristics. The JRC/JCS model is the nonlinear failure criterion and generally believed to describe the characteristics of joints better than other models. In order to develop the numerical program for JRC/JCS model, this paper established the relationship between the parameters of the JRC/JCS and Mohr-Coulomb models. Thereafter, the numerical implement method and implementation process of the JRC/JCS model were discussed and the reliability of the numerical method was verified by the shear tests of jointed rock mass. Finally, the effect of the JRC/JCS model parameters on the shear strength of the joint was analyzed.