ABSTRACT
In this study, the capability of the discrete element code UDEC in modeling jointed rock mass under shock loads is investigated. Firstly, the capability of UDEC to model wave propagation in rock material and through rock joints is verified. Key points in the modeling are then examined including determination of shock loads and dynamic constitutive models of rock material and rock joints and the treatment of far field boundary conditions. Finally the capability of UDEC to model rock cavern stability under shock loads is discussed.
