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Installation of rigid inclusions at Maritime Training Hub, Whitby
Keller was contracted by Willmott Dixon Construction Ltd to install rigid inclusions on its project at the Maritime Training Hub in Whitby. Keller was able to provide a solution that enabled the use of shallow simply reinforced footings and was also low vibration as work was taking place near existing services and retaining structures. The soils
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Installation of rigid inclusions at Maritime Training Hub, Whitby
Keller was contracted by Willmott Dixon Construction Ltd to install rigid inclusions on its project at the Maritime Training Hub in Whitby.
Keller was able to provide a solution that enabled the use of shallow simply reinforced footings and was also low vibration as work was taking place near existing services and retaining structures.
Challenge
The soils comprised up to 4.5m of contaminated and coarse fill underlain by a succession of weak alluvial soil interspersed with peat bands to around 12m deep.
The site was also impacted by a shallow tidally-influenced groundwater table and was sensitive to vibration.
The engineers were keen to adopt a solution that would avoid vibration with reduced spoil and carbon.
Solution
Keller was engaged at a very early stage, and proposed a displacement RI solution instead of piling. The solution provided enhanced stiffness to facilitate shallow foundations designed for a bearing capacity of 200kN/m2. Each column was reinforced with a single bar due to the tidal conditions.
The RIs were successfully installed in just a few days, allowing the Willmott Dixon Construction Ltd to follow on quickly with the foundation installation works.
