Tunnelling & Pipejacking
1200mm (4ft) internal diameter ISEKI TBM about to undertake a 40m pipejack crossing underneath the Chester-Holyhead Railway Line at Croes Atti for Costain / Welsh Water.
2.10m (7ft) internal diameter ’Roadheader’ arrives in Edinburgh to carry out a 200m long segmental tunnel for Scottish Power.
Above the view down a 1500mm (5ft) internal diameter pipejack tunnel in Clifton, Penrith. This tunnel crossed underneath the West Coast Mainline Railway.
Launching a 1200mm (4ft) internal diameter TBM from the drive shaft at Llandudno, Wales for Daniel / Welsh Water. In total the machine carried out 2 pipejack drives over 250m successfully.
1500mm (5ft) internal diameter ’Backacter’ Open Faced Shovel Machine ready to go to work in Chester for Daniel / Costain / Welsh Water.
The Company is a leading Tunnelling and Pipejacking contractor, with a proven track record for the major water companies, including United Utilities, Yorkshire Water, Welsh Water and Northumbrian Water.
With the Company being ’Link Up’ accredited we have the expertise to carry out underground crossings of Railway Lines, Motorways and Rivers.
Pipejacks and Tunnels ranging from 600mm diameter upto 2.10m diameter can be undertaken using various types of machines suited for varying ground conditions.
From open faced ’Backacters’ suitable for good dry clays, EPBM’s in water bearing clays, full faced TBM’s for wet sands / silts, or even open faced ’Roadheaders’ for moderately strong rock.
Donegan also specialise in Timber Headings, with a typical example shown above, and carry out augerbore / thrustbore pipe installation as shown below.
225mm diameter clay pipes being installed by augerbore / thrustbore in Tunstead Milton, High Peak, direct for United Utilities.
1500mm (5ft) internal diameter ’Backacter’ Machine being launched from the ’Drive Pit’ in Wigan, on a project for Shepherd / E. Wright / U.U.
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Registered company number 2764289, V. J. Donegan & Co. Ltd, Progress House, 396 Wilmslow Road, Withington, Manchester, M20 3BN | Company VAT Number GB 603501982
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