Numerical simulation study on the optimization of stope structure parameters in deep hard rock mines

In this paper,the stope stability of height 80m,spans 15m,20m,25m,30mwere optimized by finite element software in deep hard rock mines,and the stress distribution,displacement trend and tensile stress area of different spans were analyzed quantitatively.The stable stope structure parameters in deep hard rock mines were determined.The results show that:The optimal stope structure parameters is height 80m,span 20min deep hard rock mines,the stress distribution better status and stability.It provides a new way and method for stope design in deep hard rock mines.