Patent ID: 7156582

Claim:
An inspectable tunnel for underground pipes and cables, comprising two opposite, vertical trays ( 1 ), one of said trays being equipped with pallets ( 2 ) and a second of said trays be equipped with supports ( 26 ) used for a plurality of hinged covers. ( 15 ) to rest thereon in an open configuration; said covers being joined by flanges ( 5 ) to the pallets ( 2 ), which permits forming independent compartments with a hinged cover ( 15 ) and two adjacent pallets ( 2 ); so that each one of these compartments is accessible and independent from the others when the associated cover is in the open configuration with the associated hinged cover ( 15 ) resting on a corresponding support ( 26 ) and each compartment is closed when a respective cover is in a closed configuration; and wherein the vertical trays have recesses ( 3 ) used to engage telescopic shores ( 22 ) so that the vertical trays ( 1 ) can temporarily be maintained separate, opposite one another, until the tunnel is externally filled with concrete and this sets.