Numerical simulation of rock mass limit state using Stavrogin's strength criterion

摘要

The study covers the issues of strength of rocks under three-dimensional stress state, elastoplastic model with variable parameters of plastic flow, algorithm of problem solving with Stavrogin's strength, evaluation of the numerical model correctness and the scope of use of the Coulomb criterion. The problem implementation uses Abaqus software. The calculated data on limit state zones around an underground excavation are compared with the strength conditions by Stavrogin and Coulomb.