CHINA MINE ENGINEERING

With the increasing mining depth, the ground pressure increases, which leads to the difficulty increase of roadway support. In order to solve the problem of deep high-stress surrounding rock support, this paper uses COMSOL software to carry out numerical simulation of surrounding rock stress distribution in both primary rock roadway section and prestressed grouted anchor support roadway section, and the simulation results show that prestressed grouted anchor technology can effectively control the stress concentration of roadway roof and the instability of roof rock. Prestressed grouted anchor technology is applied to the support of 11034 haulage roadway in a mine, proving that it can effectively solve the problem of surrounding rock support of deep high-stress roadway.