Abstract: With the increasing depth of deep hard rock mining， the drilling and blasting method has gradually failed to meet the requirements of deep hard rock mining.Mechanical excavation was proposed and developed to deal with the challenges brought by deep mining， and has been widely used in the fields of coal mining and tunnel excavation. In order to explore the application of non-explosive mechanized mining in deep hard rock mining， a mechanical mining test was carried out by excavating the pillar with airborne high-frequency crushing hammer in deep hard ore-rock. During the test， the scope of the excavation damage zone of the test pillar was monitored by digital borehole television. The application of non-explosive mechanized mining in deep hard rock mines was explored in terms of daily mining time， crushing hammer and excavator status， pillar morphology， mining amount， spalling ore lumpiness， dust condition， roof condition and shaking tooth wear condition of crushing hammer tip. The test results showed that the average thickness of the excavation damage zone of the test pillar reached 2.59 m， and the mining efficiency was high within this range. In the test， the overall cutting efficiency could reach 50.6 t/h， and the cutting efficiency of the excavated pillar could reach 158.2 t/h， which proves the feasibility of the application of mechanical mining in deep hard rock mines. In addition， mechanical mining also has the advantages of high utilization rate of working hours， small spalling ore lumpiness， less dust， and less excavation disturbance.

Key words: deep mining, non-explosive mechanized mining, deep hard rock mines, high-frequency crushing hammer, excavation damage zone, cutting efficiency, mining efficiency