Structures developed by L&T for the metro, range from elevated rail corridors to underground metro rail corridors, station buildings along with alignment and expansive depots. L&T''s EPC capability enhances the pace of operations. Technologies adopted include the conventional Drill and Blast Method (DBM), the New Austrian Tunneling Method (NATM), Tunnel Boring Machines (TBM), mechanical excavations and soft tunneling using road headers for underground alignment. Construction methods for erecting super structures include incremental launching and full span ''U'' girders for the rapid completion of elevated corridors. The post modern precast yards help fast track projects well before the scheduled time.
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