Information from a desktop study of the historic industrial site was reviewed in conjunction with the proposed development of a large warehouse and associated infrastructure. The geotechnical investigation tailored for the site revealed a subsurface of complex geology and variable groundwater conditions. The geotechnical data was carefully analysed and considered against the foundation demands of the building under both static and future seismic conditions. Working closely with the project structural engineers, a foundation system was strategically designed. Careful consideration was given to the topography, earthworks procedure and contaminated nature of the soil, as well as the areas of uncontrolled fill, soft soils and groundwater levels across the site.
Davis Ogilvie geotechnical and environmental teams worked in close collaboration with the Client and the Earthworks Contractor to construct a 1.5 m thick, 9000m3 geogrid reinforced gravel raft in ten stages over a 6 week winter period.