ABSTRACT
The paper introduces a Constant-Resistance-Large-Deformation (CRLD) bolt which has been developed at State Key Laboratory for Geomechanics and Deep Underground Engineering (GDUE), in Beijing. Advancements in Split-Hopkinson Tension Bar (SHTB) tests were recently developed for CRLD bolts and experimental test results for these bolts were obtained. For a better interpretation, complex numerical simulations using several softwares were done for the case of one bolt, which had the dual goal of verifying the experimental and numerical results. In addition, the numerical predictions permitted to do a deep analysis of the behavior of the bolt focusing the development of large deformations.
