关键词: 金矿, 开拓方案, 竖井开拓, 斜井开拓, 方案比选

Abstract: Taking the No.I ore body of the main ore section of the Hammadi Gold Mine as the re‐ search object，combined with the overall planning of the phased mining and priority development of the main ore section，it aims to propose a technically feasible and economically reasonable development plan to provide support for the efficient，safe and low-consumption operation of the mine. Through systematic analysis of mining technical conditions such as ore body geology，hydrology，engineering and environmen‐ tal geology，it is clear that the ore body extends 500 m in strike and 334 m in maximum tilt，which belongs to thin-medium thick ore body. The hydrogeology is a simple type of fissure water filling. The engineering geology is generally simple，the stability of surrounding rock is good，and the environmental geological conditions are good. On this basis，two development schemes of shaft and inclined shaft are designed，and the comparative analysis is carried out by combining technology with economy. The results show that the initial investment of the shaft scheme is 17.626 9 million RMB，which is 1.852 4 million RMB higher than that of the inclined shaft scheme. However，the infrastructure period is 0.5 a shorter，90 000 t of ore can be mined in advance，and the benefit is 22.5 million RMB. The annual operating cost is 91.95 million RMB，and it has more advantages in improving capacity，safety and maintenance. The conclusion shows that the main ore section should adopt shaft development，supporting diagonal ventilation and other sys‐ tems，which can effectively improve the mining efficiency and income，ensure the sustainable operation of the mine，and provide reference for similar mine development design.

Key words: gold mine, development scheme, shaft development, inclined shaft development, scheme comparison