List of products by author: A. Codalli

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  The Riser Concept: vertical upward pipe jacking from inside an underwater Tunnel

  Abstract: Pipejacking is a well-known technique that is traditionally adopted for horizontal and sub-horizontal applications. However, jacking pipe segments vertically and from inside an underwater tunnel, which was never made before, required the development of a new construction methodology. The method, known as “Riser Concept”, has been developed to build vertical risers by excavating and jacking...

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  Tunnel segmental lining that enables rotational adjustment

  Abstract: The sewer outfall project Riachuelo Lote 3 (Argentina) includes a diffuser section where vertical risers are installed by applying an innovative construction method: the “Riser Concept”. The risers are jacked upward from inside the tunnel through an aperture within the tunnel segmental lining. To ensure verticality of the installed riser, precise positioning of the segmental ring that contains...

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