CONSTRUCTION PLATES

摘要

A set of construction plates (11) installed on the surface (13) of the free internal section of a tunnel (12). The construction plate (11) displays the shape of an undulated plate. The construction plate (11) with undulations is transversally and longitudinally overlappable with other adjacent construction plates (11) in order to fully or partially cover in a transversal and longitudinal manner the internal surface (13) of the tunnel (12), waterproofing said internal surface (13) of the tunnel (12).