| The dynamic response of rock under impact loading has become of particular interest for several mining and civil engineering applications. This thesis uses an advanced numerical method to address the response of jointed rock masses subjected to impact loading. The applied methodology includes the determination of static and dynamic mechanical properties of an intact rock unit by conducting a series of laboratory tests. A distinct element code, 2D Particle Flow Code, was used to generate a bonded particle model to simulate the intact rock properties. This was followed by simulation of large-scale jointed rock mass samples by incorporating joint networks into the calibrated bonded particle model. Finally, the impact-induced damage inflicted by a rigid projectile particle on the jointed rock mass samples was determined. A parametric analysis was performed to investigate the influence of joint characteristics, impact condition, and projectile particle properties on the damage inflicted by impact on the simulated jointed rock mass samples. |
