CORRUGATE TUBING OF LOAD-CARRYING STRUCTURES IN UNDERGROUND CHANNELS, METHOD TO FORM LOAD-CARRYING BARRIER STRUCTURE OF UNDERGROUND CHANNEL AND METHOD TO REPAIR DEFECT LOAD-CARRYING BARRIER STRUCTURE OF UNDERGROUND CHANNEL

摘要

FIELD: construction. ^ SUBSTANCE: corrugate tubing for load-carrying structures of underground channels comprises a corrugate metal sheet of a rectangular shape in plan, made with perforated holes on a part of the surface and having side and end stiffening ribs. At the same time stiffening ribs along the perimetre of the specified sheet are arranged in the form of metal plates arranged perpendicularly to the sheet and welded to its edges with adjacency of corrugation ends to the side surface of two oppositely arranged plates. Besides, in the specified plates there are holes for fastening bolts, and perforated holes are arranged to inject a mortar to fill cavities between corrugate metal sheets and the surface of the underground channel or the defect load-carrying barrier structure. ^ EFFECT: reduced weight and dimension of a tubing, lower labour intensiveness and timing of construction. ^ 3 dwg