Tunnel wall separation type thermal insulation structure

The utility model relates to a tunnel wall separation type thermal insulation structure. The thermal insulation structure is fixedly mounted on an inner layer of a tunnel lining; the thermal insulation structure is symmetrically arranged along the arc direction of the tunnel lining; in the thermal insulation structure, a thermal insulation supporting section, a thermal insulation shoring section and a stress section are arranged from the symmetrical center line of the tunnel lining in sequence; the stress sections are fixedly connected with lining footings. According to the tunnel wall separation type thermal insulation structure, on the basis of the optimization and improvement of a common wall separation type lining, the thermal insulation structure is combined with electric heat tracing facility and has the advantages that the time consumption is little, the installation is rapid, the manufacturing cost is low and the like, and the intelligence of the facility is obviously increased.