Principal Place Residential, London: Design of Piling Gantry

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Whilst at Robert Bird Group David designed a steel and timber platform which allowed piling to take place adjacent to a historical tunnel.

The weight of the 170tonne Bauer BG40 piling rig was supported by existing bridge footings and new mini-piles, rather than apply a surcharge to the ground retained by the tunnel.

The action of the piling rig was barely noticeable by the team monitoring the tunnel – having even less effect on the tunnel than passing trains.