Clyde Tunnel Refurbishment, Glasgow, UK
The 762 metre long Clyde Tunnel has been a major transport link between north and south Glasgow for almost 50 years. On average 65,000 vehicles travel through it daily.
The refurbishment contract involved stripping the tunnel’s existing secondary lining back to the cast iron structure and replacing it with a new architectural fire-resistant version. To minimise traffic disruption, the maintenance work was carried out at night to a strict schedule, 7 days a week.
Ancon’s stainless steel support framework was fixed directly to the cast iron tunnel structure. The new lining was attached to the frame and joined with a stainless steel retaining strip. In the event of a fire the integrity of the structure must be protected, and as temperatures could reach over 1000°C in the case of a fuel tanker incident, the tunnel lining is designed to keep the temperature within the tunnel below 300°C.
A reputation for high quality stainless steel bespoke solutions, coupled with a proven track record in the tunnelling sector, made Ancon the obvious choice for this demanding contract.
Ancon is a specialist fabricator and has a wealth of experience in working with a range of types and grades of stainless steel.
Successfully re-engineered by Ancon, the IHR range of internal head restraints can now accommodate gaps at the wall head of up to 75mm, extending the previous maximum of 50mm.
Ancon has been honoured at a Royal reception to celebrate its success in the 2018 Queen’s Awards for Enterprise – the third Queen’s Award for the company.