CONSTRUCTION METHOD OF TUNNEL AIRDUCT SLAB

摘要

The present invention provides a hanger assembly to install an air duct slab, to unshakenly and stably install the air duct slab without a structural reinforcement, and a construction method for a tunnel air duct slab. According to an appropriate embodiment of the present invention, a construction method for the tunnel air duct slab comprises the steps of: (a) supporting a lining main reinforced bar; (b) positioning an embedded plate material and a stud bolt to be embedded in a lining concrete layer; (c) coupling a hanger bracket to be close to an embedded plate material after a hanger bracket is inserted into a male screw unit on a lower portion of the stud bolt to be clamped by a nut; (d) connecting a hanger support plate to the hanger bracket; (e) supporting an H-shaped steel rail to mount the air duct slab on a lower end of the hanger support; and (f) enabling filling mortar to be filled in a gap between the air duct slab panel and a slab support bracket.