Abstract:
Applying FLAC
3D to simulating shear resisting action of full-length anchored bolt with pre-stress, influence of surrounding rock strength, anchored bolt and pre-stress on shear resisting performance of joint was discussed. Simulation results were showed as follows. Shear resisting performance was influenced by surrounding rock strength largely. Increase of shear resisting stiffness of system composed by anchored bolt and surrounding rock would improve shear resisting strength of joint. Pre-stress not only improved stiffness of supporting system, but also made axial force of anchored bolt increase, so it improved shear resisting performance.