Abstract: Numerical simulation calculation analysis was done on stope ground pressure of a layer of cu-ni ore of a group by using 3-d finite element simulation calculation method, and verified with site observation result, changing result of dynamic ground pressure with the development of engineering was obtained, which provided basis for optimization of stope parameters and mining technology and efficient safe production realization.

Key words: Filling method, Ground pressure of stope, Numerical simulation, Surrounding rock stress