Abstract: In the mining process of metal mines, roadway support is the key construction link to en⁃ sure the stability of the roadway. However, there are many kinds of existing roadway construction technolo⁃ gies, and it is difficult to unify the roadway support standards with different surrounding rock quality. In or⁃ der to explore standard design scheme of the roadway, taking a polymetallic mine as the engineering back⁃ ground, in view of the rock mass quality conditions of the carbonaceous slate roadway, the RS2 software was used to analyze the distribution characteristics of the stress and displacement of the roadway surrounding rock under different support conditions, and the standardized scheme of roadway support was optimized in combination with the engineering practice. The results show that different types of support design have dif⁃ ferent effects on the stress and displacement of the surrounding rock in different areas of the roadway, and reasonable support methods should be designed based on different rock mass quality conditions to achieve unified management of different supports. The research results can provide reference for mine roadway sup⁃ port design.

Key words: metal mine, drift support, rock mass quality, finite element analysis