Erith, London,Large Distribution Warehouse | CFA Piling | Keller UK

Erith, London,Large Distribution Warehouse

For this £4.0million scheme Keller installed around 9000 Precast and Driven Cast In-situ (DCIS) piles to provide the foundation for a new high bay storage facility in Erith, South East London.  All the DCIS piles were constructed with enlarged 900mm diameter. The combined precast and DCIS solution Keller were able to offer allowed flexibility in supply of piles and ensured a tight 15 week programme could be achieved.

A Driven Cast In-situ (DCIS) and Precast Pile solution was proposed by Keller for this site. A total of 8777No. Piles have been installed by Keller with 6051No. 900mm diameter enlarged heads also completed for the piles supporting the floor slab.

The combined DCIS and precast solution allowed the advantages of both techniques to be maximised to the benefit of the project. Precast piles were used for the building frame pile caps which allowed virtually immediate follow on with pile cap construction.  DCIS piles were installed to support the floor slab were thence  installed behind the perimeter piles

Enlarged pile heads were constructed monolithically on the floor slab piles.This in turn minimised pile breakdown and provided a sustainability benefit to the project by removing waste disposal of discarded pile heads from the scheme. There were also programme benefits as the pile head was formed to underside of floor slab level meaning ongoing construction activities could continue without disruption. Tight tolerances of +/-50mm were achieved on the head construction.

A robust QA process was implemented by Keller for these works which included the completion of 20No. Static load tests & 54No. Dynamic Tests.

To ensure the 15week contract programme was achieved, Keller provided 5No. Rigs (3No.DCIS & 2No. Precast). The work sequencing was combined with the flexibility of supply provided by the precast and cast in-situ techniques. All works were completed within stipulated contract period with no H&S incidents being recorded.



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