Tunnel lining earthquake accumulated damage evaluation method suitable for vibration table test

The invention provides a tunnel lining earthquake cumulative damage evaluation method suitable for a vibration table test according to vibration table test lining structure dynamic strain test data analysis, consideration of cumulative damage of elastoplastic deformation characteristics and combination of a machine learning means. The method comprises the following steps: 1) designing and arranging a tunnel lining dynamic strain sensor, filling a vibration table test model, loading a seismic wave test, obtaining tunnel lining dynamic strain data, and drawing a dynamic strain-time curve graph; 2) fitting by adopting a local weighted regression algorithm to obtain a dynamic strain smooth curve; 3) drawing a fitting local regression dynamic strain-time curve graph; the method comprises the steps of (1) obtaining a regression dynamic strain-time curve graph, (2) extracting a local regression dynamic strain peak value and a residual dynamic strain value according to the regression dynamic strain-time curve graph,