Railway tunnel base structure service state evaluation method and device

The invention provides a railway tunnel base structure service state evaluation method and device, and belongs to the field of railway tunnel engineering, and the method comprises the steps: obtaining railway tunnel base structure data corresponding to a plurality of preset different types of evaluation indexes; according to the membership function value of each evaluation index, constructing a membership matrix of each evaluation index; obtaining a fuzzy evaluation vector of each category according to the weight of each evaluation index and the membership matrix; constructing a comprehensive evaluation matrix according to the fuzzy evaluation vector of the category; and obtaining a service state evaluation result of the railway tunnel base structure according to the comprehensive evaluation matrix and the weights of the categories. The device comprises a data acquisition module, a function value calculation module, a matrix construction module, a judgment vector calculation module, a comprehensive judgment m