Prefabricated assembly type wind bin structure for double-hole tunnel and construction method

The invention belongs to the technical field of tunnel engineering, and particularly relates to a prefabricated assembly type air bin structure for a double-hole tunnel and a construction method. A prefabricated assembly type air bin structure for a double-hole tunnel comprises a main hole air bin, a channel air bin, an auxiliary tunnel air bin and an intersection air bin, longitudinal beams are arranged on the two sides of the upper middle portion of the cross section of a main hole left line, the two sides of the upper middle portion of the cross section of a main hole right line, the two sides of a construction channel and the two sides of the upper middle portion of the cross section of an auxiliary tunnel respectively, and each air bin is of a modular structure and comprises a plurality of air bin modules. The wind bin module comprises cross beams located at the bottom, annular stiffening ribs, longitudinal stiffening ribs and skin, the cross beams are perpendicularly arranged between the longitudinal be