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    • Paul K. Madsen

      Ryfast

        Ryfast is a chain of subsea tunnels in the southwest of Norway. Ryfast tunnels connects Stavanger (the fourth largest...e Boknafjord. Ryfast consists of two tunnels: Ryfylke Tunnel: It li...or traffic on 30 December 2019, Ryfylke Tunnel is the World&...

      • Paolo Kerguel

        Richard James Robbins

          Richard James Robbins (1933 - 2019) (Born: 1933..., as he has been known to the tunnelling world was actually born into tunnelling. He was the son of James...e Robbins Company grew into a worldwide leader and technology powerhouse in TBM tunnelli...foreign patents in mechanized tunnel...

        • Robin McAuley

          How much does a Tunnel Boring Machine (TBM) cost?

          This is a general guide for how much a Tunnel Boring Machine (TBM) costs....complex TBMs. The cost of a tunnel boring machine (TBM) basicall...An often quoted rule for a Tunnel Boring Machine is; it costs U...turers flooded the market with World-cl...nds/meter. TBM Type Tunnel...

          • Robin McAuley
            • Robin McAuley

              Conventional Tunnelling versus Mechanized Tunnelling

                Why choose Mechanized Tunnelling over Mechanized Tunnelling? Or vice versa? When to use Tunnel Boring Machine tunnelling method? When to use Drill...definitions. Conventional Tunnelling Refers to creation of...ommon example of Conventional Tunnelling is the 'Drill and Bla...

              • Robin McAuley

                Y-Parts

                Y-Parts is the collective term used for the spare parts used on a Tunnel Boring Machine's (TBM) Cutter Head. These are the parts which are worn most and need replacement most often during a boring operation.

                • Robin McAuley

                  Tunnel Boring Machine Definitions

                  WARNING Under construction. Incomplete content   Y-Parts

                  • Robin McAuley

                    What is the difference between welding, soldering and brazing

                      Soldering: Soldering is used to join two or more pieces of similar or diss...re various methods for melting the brazing material. In tunnel m...dictability is still a quality! Having said this; in tunnel...

                    • Robin McAuley

                      Buying Advice for Bichak-Cutters

                      WARNING UNDER CONSTRUCTION. Bichak Cutters ("knives" or "scrapers") ar...s a whole different game. Therefore, ask the producer their reference sites. Which tunnel...