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    • Paolo Kerguel

      Richard James Robbins

      ...e inventor of the rock Tunnel Boring Machines and the founder of The Robbins Company. When James Robbins was ki...technology powerhouse in TBM tunnelling. He has been the president and the CEO of the company from 1958 to 1993 when The R...foreign patents in mechanized tunn...

      • 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
          • Robin McAuley

            Conventional Tunnelling versus Mechanized Tunnelling

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

            • Robin McAuley

              Tunnel Boring Machine Definitions

              WARNING Under construction. Incomplete content   Y-Parts

              • 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. TBM p...ort of at least the machinery company that has performed the actua...omplex TBMs. The cost of a tunnel boring machine (TBM) basically depen...ameter The excavation or boring diameter of a TBM is an impor...

                • Robin McAuley

                  Buying Advice for Bichak-Cutters

                  WARNING UNDER CONSTRUCTION. Bichak Cutters ("knives"...s") are cutters used for boring in soft to medium ground. Bas...their reference sites. Which tunnel construction sites have they d...rence list with project name, company name and at least one contact...ers who insist on their "comp...

                  • Paul K. Madsen

                    Ryfast

                      Ryfast is a chain of subsea tunnels in the southwest of Norway. Ryfast tunnels connects Stavanger (the fourth largest ci...the Boknafjord. Ryfast consists of two tunnels: Ryfylke Tunnel: It li...g for traffic on 30 December 2019, Ryfylke Tunn...

                    • Robin McAuley

                      What is the difference between welding, soldering and brazing

                        Soldering: Soldering is used to join two or more pieces of similar or...arious methods for melting the brazing material. In tunnel machinery industry, for Y-Par...ability is still a quality! Having said this; in tunn...