Bumax provides fasteners solution to UK sewer tunnel

17 September 2019

BUMAX® bolts have been used as a low-maintenance and cost-effective lifecycle solution to strengthen an old Victorian sewer tunnel in the UK.

A section of historic sewer tunnel in close proximity to a busy railway station was identified as requiring strengthening to ensure its long-term structural integrity.

Duplex stainless steel was selected for the structure to provide excellent corrosion resistance and high strength, despite having limited dimensions due to the constraints of the tunnel section. Bolts were also needed to fix the Fiberglass Reinforced Plastic (FRP) liner panel sections to the duplex stainless frame.

As engineers realized that conventional duplex stainless steel bolts would be unable to cope with the load requirements on the structure, they found that BUMAX was the only supplier that could offer a solution to comfortably meet the project’s demanding requirements.

BUMAX delivered a solution that involved many parts on a very tight time schedule. BUMAX also provided on-site advice on bolt installation methods to ensure successful installation first time – which was essential due to the project’s time constraints.