Abstract:In the conventional scheme design, the dynamic load source is single, which leads to the failure of safety evaluation results. In this paper, the seismic design and safety evaluation scheme of metal mine under dynamic load is studied. According to the horizontal propagation mode of amplification factor, the seismic peak acceleration under dynamic load is calculated; By adjusting the acceleration curve, the vibration response characteristics of metal mines are extracted; The equivalent damping method is used to design the shock absorption structure, and the shock absorption design scheme of metal mine is completed. Aiming at the safety evaluation, the safety of metal mines is semi quantitatively evaluated by LEC Method, and the safety evaluation grade of mines is obtained. Simulation test: the response characteristics of axial force, bending moment and shear force obtained by the new scheme are in line with the reality, and the safety level of the metal mine is upgraded from level II to level I; The dynamic load parameters obtained by the two groups of conventional schemes deviate slightly from the actual value, and the designed anti seismic structure can not improve the safety level of metal mines. It can be seen that the design of the new shock absorption structure can better maintain the safety of metal mines.