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    • Paolo Kerguel

      Richard James Robbins

      ...pany under his management. He single-handedly filed 11 US patents and 56 foreign patents in mechanized tun...won the '2009 Benjamin Franklin Medal in Engineering' a US award for his contributions to technolo...

      • Robin McAuley

        TBM Y-Parts sourcing: Should you buy your TBM Cutters from TBM Manufacturer or from Independent Manufacturers?

        ...-Parts, the commonly referred for the TBM cutters, collectors,...Parts of TBM Manufacturers Perform Better than that of Independ...ou more and often will not perform as well as Y-Parts of the go...A true win-win (both wins are for the TBM manufacturers). ...

        • Robin McAuley

          Buying Advice for Bichak-Cutters

          ...apers") are cutters used for boring in soft to medium grou...quot; or "Scrapers" for Bichak Cutters. They come in...off...) Your check-list before ordering Bicak cutters Yo...will propose you their design for the Bichak-cutter. You will h...

          • Robin McAuley

            What is the difference between welding, soldering and brazing

            ...example of dissimilar metals for soldering to each other are t...Usually a fire torch is used for melting the solder. When y...ratures compared to soldering for the "glue" material...esults in brazing material uniformly cover all adjoining surfac...

            • 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

                Conventional Tunnelling versus Mechanized Tunnelling

                ...placed in drilled holes on the wall for excavation. Mechanized Tun...s the use of Tunnel Boring Machines for excavation and support creati...quires a higher in-front investment for the machinery. Both in cost a...loy another technique more suitable for excavating the rock. In th...

                • Paul K. Madsen

                  Ryfast

                  ...ls: Ryfylke Tunnel: It lies between the island of Hundvåg and to the south of Tau on the other side of the fjord. On the day of opening for traffic on 30 December 2019,...

                  • Robin McAuley

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

                    ...do not expect the new TBM performance from a refurbished TBM....be a competent support party for the refurbished TBM, during t...ies used. A recent example for the price of a large-diameter...offering attractive price/performance packages. There might be...