The Damage-Fracture Analysis of jointed Rock Mass and Its Application in Engineering

An equivalent continuum model of jointed rock mass is proposed by averaging the stress and strain in a volume element . Using the theory of damage machanics and fracture mechanics, the damage tensor, effective stress tensor and damage strain etc. of the rock mass are defined, propagation equations of damage and a constitutive model of jointed rock mass are established. The above model is used for the numerical analysis of an engineering case.