Abstract:Purpose: The raise excavation operation is a crucial aspect of mining construction and production. In comparison to conventional methods and the reverse drilling rig method, the medium-deep hole one-step raise blasting technology can effectively enhance the safety and construction efficiency of raise excavation. Due to the different rock properties of different mines, it is urgent to explore a suitable medium-deep hole one-step raise blasting technology for Sanshandao Gold Mine. Method: The -540m~-555m drainage well around the 24 exploration line of Xishan Mining Area in Sanshandao Gold Mine were selected as industrial testing sites. Based on the rock conditions and dimensions of the drainage well, a design proposal for medium-deep hole one-step raise blasting was carried out, and specific construction process requirements for rock drilling, plugging, charging, connecting, and blasting were proposed. Result: The on-site industrial test results show that the formation of the drainage well is formed regular, the blasting block size is uniform, and the stability of the upper and lower roadways is good. Significance: This practice serves as a reference for the application and promotion of the medium-deep hole one-step raise blasting technology in similar mining mines.