Abstract: To address the problems faced by Zhangzhuang Mine during actual production ,such as fre⁃ quent placement of support materials and excessive burden on the auxiliary shaft hoisting system.A place⁃ ment drilling scheme was proposed to achieve the self-flow placement of support concrete and cement mor ⁃ tar.Through detailed analysis of the selection,design,and safety and environmental protection aspects of the scheme,the significant role of the rapid slagging technology in enhancing the safety level of the mine , improving the placement efficiency,reducing the hoisting cost,and promoting technological innovation and environmental protection concepts was demonstrated.Through numerical simulation,the bottom buffer scheme was optimized,and a buffer scheme combining multiple bends and variable diameter placement suitable for Zhangzhuang Mine was proposed.The investment budget of the project was estimated,and it is expected that the project can recover its cost within 5.8 a.