Swansea's post-war expansion reshaped the lower Tawe valley with deep alluvial fills, pushing development onto silts and sands that the original town had avoided. Today, every brownfield scheme between the marina and the Liberty Stadium sits on ground where pore pressure can spike under cyclic load. Our laboratory runs liquefaction screening directly on samples extracted across the city, applying Eurocode 7 (BS EN 1997-1:2004) procedures and BS 5930 logging protocols. We combine index testing with triaxial cyclic stages to measure excess pore pressure build-up, and cross-check results against in-situ permeability values when site drainage is a design variable. The output feeds directly into foundation redesign cycles for Swansea schemes.
In Swansea's estuarine sands, a water table at 1.5 m depth means liquefaction screening is not optional — it’s the difference between a safe foundation and a post-event settlement claim.
