UNDERGROUND STRUCTURAL WORK, PARTICULARLY FOR BUILDING TUNNELS, UNDERPASSES, CARPARKS AND THE LIKE, A PROCESS FOR ITS PRODUCTION AND A PREFABRICATED ELEMENT FOR SUCH STRUCTURE

摘要

An underground structural work, particularly for forming tunnels, underpasses, carparks or the like, includes a pair of containment structures (2) which extend along two opposite sides of the work. These structures (2) include pile elements capable of carrying a deck (10) of the work formed by substantially vaulted deck sections which extend transversely of the containment structure (2). In at least some of the pile elements there is incorporated a prefabricated supporting element (3) which includes an elongate reinforcement (4) and a concrete body (5) anchored to the reinforcement (4). Each deck section includes prefabricated elements (13, 15) of concrete defining a pair of side portions (13) and a central portion (15) which can be interposed between them. Between the lateral portions (13) and the concrete bodies (5) are formed free spaces to allow casting in situ of concrete for mutual anchoring.