Method for building large span tunnels by means of a...

Details Method for building large span tunnels by means of a... Method for building large span tunnels by means of a...

E - Fixed Constructions

21

D

262/54, 61/61

E21D 9/04 (2006.01) E21D 9/00 (2006.01) E21D 13/00 (2006.01)

Patent

CA 1334340

The method comprises the steps of driving into the ground a plurality of adjoining tubes and coupling these tubes by suitable variable interaxis structures for making a monolithic strong covering or cellular arch.

587999

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