ABSTRACT
ABSTRACT: This paper presents a composite element model for jointed rock masses supported by shotcrete lining and bolt. In this model, general finite element mesh can be generated without considering the existence of joint, bolt and shotcrete lining, and then composite element information can be formed according to the relevant information. Also it should be taken into consideration the behavior of every components and the localized nonlinear deformation and interactive relationship of bolt and shotcrete lining on joint. This composite element model includes the advantages of equivalent simulation and discrete simulation to be of good application prospect.
