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Home > First York Potash TBM soon to be shipped

First York Potash TBM soon to be shipped

Tris Thomas

Written by Tris Thomas on 23/01/2019 in News

Tagged: Herrenknecht,Strabag,underground,York Potash

Sirius Minerals, the client on the UK’s York Potash Project, has unveiled the first of its 1,800 tonne TBMs that will construct the company’s 37km long, 6m diameter underground mineral transportation tunnel between Whitby and Teesside.

The 225m long Herrenknecht machine is undergoing final checks in Germany before being shipped to Teesside in the coming weeks, where it will be reassembled to start tunnelling in the second quarter of the year..

The single-shield TBM will be operated by contractor Strabag. Initial excavations have already begun to prepare for the machine’s arrival.

The machine will bore the first of three planned tunnel drives which will make up the complete tunnel from a new underground mine, near Whitby, to a processing facility on Wilton International in Redcar. Two other TBMs are planned to be launched in 2020 from Whitby and Lockwood Beck, near Guisborough, to complete the final 24km of the tunnel. Workers will operate the TBM 24 hours a day, 7 days a week, lining the tunnel with concrete segments.

When complete, the tunnel will transport up to 20 million tonnes a year of polyhalite ore on a conveyor belt from the mine, to a purpose-built processing and shipping facility in the shadows of the old Redcar Steelworks, for distribution around the world. A tunnel was chosen as the transport solution to avoid impacting the local landscape and will have no impact on the ground above, sitting at an average of 250m below ground level.

Chris Fraser, Managing Director and CEO of Sirius said: “The assembly of our first tunnel boring machine represents an exciting milestone for the company and the region. With around 1,000 people currently employed across all of our sites, the team working to make this project a success continues to grow as we deliver this world class project. We expect to create hundreds more skilled construction roles in the coming months to help build our mineshafts, tunnel and mineral handling facility.”

Sirius expect to reach the polyhalite seam in 2021 and to be producing 10 million tonnes of fertiliser per annum by 2024, bringing about around 1,000 new long-term operational jobs.

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