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Busch helps burrow Thameslink tunnels on the channel tunnel rail link project

Posted: Thursday 2nd March 2006

Vacuum pumps from Telford based manufacturer Busch (UK) Ltd has helped burrow two tunnels for the Thameslink 2000 scheme, which have been built as part of the Channel Tunnel Rail Link (CTRL) project.

Busch’s R5 oil-recirculated rotary vane vacuum pumps have been used to help line the 1200 metres of Thameslink tunnels bored by a 350 tonne tunnelling machine called Gertrude as part of the CTRL project.

Gertrude is a complete tunnelling system, relying on electrically generated hydraulic power to dig and move dirt, build metre long concrete tunnel lining segments and gradually move forward.

Dosco Overseas Engineering Ltd, the makers of Gertrude, bought Busch’s pumps to provide vacuum for holding and lifting the concrete used to line the walls.

Dr Keith Dykes, sales and engineering director at Dosco, said: “Our machinery was used 24 hours a day and we needed vacuum pumps which offered quality and reliability. Busch’s R5 has both of these in abundance, they are small in size and use a low power electric motor.”

Dosco, part of Amco Corporation Plc, is a world leader in the manufacture of mining, civil tunnelling, materials-handling and mineral-processing equipment.

Steve Callaghan, area sales manager at Busch, said: “We recommended this product because it’s ideal for round-the-clock operation and this is a perfect example of how the R5 can be easily adapted for any process.”

Steve says the compact design, air cooling and easy access allows rapid and simple servicing with long periods between service and no preventative maintenance apart from routine oil changes is required.

When completed in 2007 the link, running between London’s St Pancras station and the Channel Tunnel, will reduce Eurostar journey time and facilitate other rail network enhancements.

Busch (UK) Ltd was established in 1971 and supplies a comprehensive range of vacuum pumps, low-pressure compressors and systems, which are designed and built to meet the individual needs of its customers. Its Telford base also features a full service and support centre.

With more than 1800 employees working in 38 manufacturing and operations facilities located around the world, Busch Vacuum Pumps & Systems was founded in Germany in 1963 by Dr-Ing Karl and Mrs Ayhan Busch.




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