Abstract: To get optimized access structure parameters, finite element analysis was done on six different kinds of access structure parameters plans using ANSYS.Vertical displacement curves and vertical stress curves of access mining process of different plan and different specification were obtained.Combined with geological condition and relative productivity of Xinli mining area of Sanshandao Gold Mine, optimized access structure parameters of access width 4.0m and height 3.0m were obtained.It can guarantee the safety and high efficiency mining of access.

Key words: Entrance filling, Structure parameters, Numerical simulation