Abstract:
In order to solve the surrounding rock control problems of large-section gob-side entry driving in deep mine, the study used numerical simulation software FLAC
3D to simulate the surrounding rock deformation situation of three different support programs with 4 m roadway pillar in 1305 gob-side entry driving roadway. The results show that the deformation of roadway is small after using 8.5 m long anchor cable in solid coal rib, and long anchor cable reinforcement mechanism in solid coal rib is analyzed. The practice show that the two sides deformation reduced by 75 percent after using 8.5 m anchor cable. It ensures the safety and stability of the roadway and provides a strong protection for high production and efficiency face.