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Network Rail Thameslink Project

Fixing Catenary to Masonry Lined Tunnels

  • The traditional method, using M16 anchors in a slow curing mortar, was considered inefficient. The risk of ‘project overrun’ and the potential additional cost of line closure for extended line possession were of concern. A more efficient method was therefore required.

  • VJT ‘value engineered’ a system that allowed the brackets to be fixed in less than 10 minutes; which compared to 1 hour using the original system.

  • 600% more productivity. 

  • Reduced risk of ‘over run’ and associated line closure costs.

  • Simple, consistent and, therefore, safer fixing system

  • Extensive testing was undertaken to prove that the system had sufficient capacity and durability for the application