Grade II* listed façade
Protecting heritage with advanced analysis
Excavating a deep basement to maximise development space would have caused local ground movements and devastating damage to the Grade II* listed façade to the Old War Office building in Whitehall, London.
Detailed 3D finite element analysis (FEA) of the complex, phased basement construction sequence using advanced non-linear soil models allowed the construction sequence to be adapted to ensure the priceless facade suffered no damage.
Ground movement analysis for top-down and bottom-up construction options.
Tensile force prediction in basement piles due to heave and groundwater pressures.
Heave pressure prediction for basement floor design.
Development space on this prime site was maximised.
Permanent basement dewatering measures investigated.