Abstract: Through a large number of rock mechanics tests and joint surveys on ore rock in mining area of Sanshandao Gold Mine, rock mass quality classification was done on mining area. Dotted pillar method, panel mining room-and-pillar method, lane type working method was adopted in Ⅱgrade, Ⅲgrade、Ⅳgrade rock mass mining separately, then stability analysis was done on mining area by finite element numerical software. Surrounding rock variation characteristics after mining were obtained, while it provides theoretical basis for safety and high efficiency mining of mining area.

Key words: Rock mass quality classification, Regional ore body, Stability analysis