High Street and Finnieston Rail Tunnels, Glasgow

We were engaged to undertake a series of localised Non-Destructive Tests (NDT) to the reinforced concrete slab tracks of both railway tunnels located within Glasgow city centre.  Our investigative works were undertaken over two phases to help determine the location and magnitude of voids below the rails.

McFarland Consulting Ltd Engineers performed a visual inspection of the top surface of the track beds and extracted a number of concrete samples for compressive and petrographic analysis.  We employed a number of specialist techniques to help determine the presence of voids below the slab track which included:

A series of 30mm diameter cores were then undertaken at areas of interest to confirm the findings of the specialist tests.  Our works enabled the Client to determine the location and presence of voids so that a monitoring and remedial regime could be implemented.