Comprehensive pipe gallery bottom plate film spraying outer waterproof construction method

The invention relates to a comprehensive pipe gallery bottom plate film spraying outer waterproof construction method. The construction method comprises the following steps that foundation soil is leveled, a concrete cushion layer is constructed, and a bricked guide wall is constructed; a bottom plate internal corner waterproof reinforcing layer is constructed, and then a bottom plate film spraying waterproof layer is constructed; a bottom plate waterproof protection layer and a bottom plate structure are constructed; pipe gallery side walls and a top plate are poured; the film spraying waterproof layer at the bricked guide wall is lapped, at least one brick at the top of the bricked guide wall is removed to expose part of the film spraying waterproof layer, and the film spraying waterproof layer is obliquely removed into a triangular cone shape; a film spraying waterproof layer of the side wall is constructed, and a film is sprayed from the top surface of the bricked guide wall to theside wall and the top pl