ARTICULATED STEEL BRIDGE FOR FLOORING IN UNDERGROUND OPERATIONS.

摘要

AN ARTICULATED LAYER OF STEEL (1) FOR UNDERGROUND CONSTRUCTIONS CONSISTS OF A HOLLOW PROFILE (2) OF A DETERMINED LENGTH, WHICH IS FINALLY PROVIDED WITH A PEAK (3) AND FOR WHICH ANOTHER END A FORK (4) IS PROVIDED AS A SUPPLEMENT (5 , 6) AND WHERE THE JOINT OF THE SUPPLEMENT AND THE HOLLOW PROFILE IS FORMED AS A PLUG CONNECTION. A SOLID, WITHOUT CLEARANCE, SECURE OF THE SUPPLEMENTS IN THE CORRECT POSITION IS OBTAINED IN SUCH A WAY, THAT EACH SUPPLEMENT (3,4) IN ITS SIDE END TO THE HOLLOW PROFILE SHOWS A SUPPLEMENT OF PROFILE (5.6) CORRESPONDING TO THE HOLLOW PROFILE IN THE PROFILING, WITH AT LEAST ONE LONGITUDINAL TILTING SURFACE (7-10) THAT IS COORDINATED TO EACH MOBILE CUP (11,14), WHICH CAN BE RETRACTED IN THE HOLLOW PROFILE BETWEEN THE LONGITUDINALLY INCLUDING SURFACE OF THE INNER SURFACE.