Method and system for predicting and evaluating service life of filling layer of slab ballastless track

The invention discloses a method and system for predicting and evaluating the service life of a filling layer of a plate-type ballastless track, and the method comprises the steps: taking load fatigue, temperature fatigue, freeze-thaw fatigue and dry-wet fatigue as the influence factors of the service life of the filling layer according to the environment of a distribution region; carrying out single-factor and/or composite-factor fatigue life simulation test on the filling layer; constructing a life prediction model corresponding to the fatigue life simulation test according to the service life influence factors; substituting the test result into the life prediction model, calculating to obtain specific parameters of the life prediction model, and determining the life prediction model; and obtaining service state parameters of the ballastless track filling layer, and inputting the service state parameters into the service life prediction model to obtain the service prediction service life of the filling laye