Overlying strata separation layer grouting settlement-reduction earthquake-reduction evaluation method

The invention discloses an overlying strata separation layer grouting anti-settlement earthquake evaluation method, and relates to the technical field of safety control, and the method comprises the steps: carrying out the regional division of a working face through the density of a macro-energy micro-earthquake event, and judging a region needing to be grouted; respectively acquiring ground surface settlement parameters and micro-seismic energy before and after overlying strata separation layer grouting; according to parameter changes before and after grouting, respectively drawing change curves of ground surface settlement parameters and micro-seismic energy along with time, and according to the change curves, determining a ground surface settlement parameter average value and micro-seismic average energy; the reduction rate of the ground surface settlement parameters and the reduction rate of the micro-seismic average energy are determined according to the ground surface settlement parameter average value