Within a well-managed time-frame, the technical team was able to value engineer the traditional approach to working platform construction. With tight site constraints and limited resources, the impact on value engineering the temporary working platform was a 40% cost reduction, after an allowance for the cost of the geogrids.
Throughout the project, Wrekin assisted with the coordination of the proposals, collaborating with the full supply chain, which included Noble Works as the scheme designers and Stantec as the Tier 1 contractor.
E’GRID Biaxial geogrid from Wrekin is a large aperture polypropylene geogrid used to reinforce the ballast layer, reducing ballast settlement and subsequent maintenance intervention following ballast renewal.
E’GRID delivers ground stabilisation under roads, railways (Wrekin Products has a Network Rail certificate of acceptance for E’Grid Biaxial Grid) and paved areas. Employed in single or multi layers, the tough platform created provides tremendous load dispersal, allowing previously weak soils to be reclaimed for a wide range of uses, including, as at Earl Shilton, for access roads and platforms.
When granular particles are compacted over E’GRID Biaxial grids, they partially penetrate and project through the apertures to create a strong and positive interlock. The load dispersal effect from the interlocking mechanism increases shearing resistance within the soil, improving compaction and allowing the sub-base thickness to be decreased, ultimately cutting construction costs and time.
