Underground box type pipe gallery of steel-concrete mixed type structure and production method thereof

The invention discloses an underground box type pipe gallery of a steel-concrete mixed type structure. The underground box type pipe gallery comprises box type pipe sections, wherein each box type pipe section is formed by splicing a top plate, a bottom plate and two side plates. The box type pipe sections are spliced in the axial direction to form the box type pipe gallery. Concrete longitudinal columns are arranged at axial edges of the box type pipe sections. Concrete transverse columns are arranged at the two ends of the top plates or the bottom plates. Concrete stand columns are arranged at the two ends of the side plates. The concrete transverse columns and the concrete stand columns are in end-to-end connection to form a frame type framework. In the underground box type pipe gallery of the steel-concrete mixed type structure, the longitudinal columns and the frame type framework bear the main loading, and the bearing capacity of the pipe gallery is increased; by means of a bridge steel web plate struct