A New Method for Simulation of Rock Discontinuity with Numerical Manifold Method

Abstract:

The numerical manifold method (NMM) provides a uniform framework for analyzing both continuum and discontinuum. Incorporating the advantages of the NMM formulations and the well known Goodman element, a novel method for modeling the rock discontinuities is developed. The method which is particularly suitable for modelling joint or weak layer in rock, is proved to greatly simplify the preprocessing and analysis of the jointed rock mass, as a result, it is generally applicable for rock mechanics and rock engineering. Several test examples illustrate the correctness and effectiveness of the proposed method.