NUMERICAL SIMULATION ANALYSIS OF ROCK BOLT SUPPORT MECHANISM UNDER DIFFERENT SITE-STRESS

Based on ANSYS finite element software,a computer-assistant design system for bolt rock support(ANSYS Bolt)has been developed.By means of ANSYS software,the reasonable structure of bolt support under different site-stress has been analysed.It has been found that under high horizontal site-stress the distoration is the main reason for roadway breakage.To avoid breakage of roadway,the roof and bottom of roadway must be reinforced to overcome distoration.