1 Broadgate

Restricted Headroom Martello Rigs used were MP4002, MP4003, MP4004 and MP5003 which were able to work within the limited headroom with the use of spliced full length cages across the secant piled wall extents.

Engagement with Sir Robert McAlpine’s sustainability team meant we were able to include for high GGBS content within the concrete mixes (and up to 95% within the female unreinforced piles) which was beneficial towards SRM’s sustainability targets on the project.

The combined approach of Martello Piling and return visit for Bluesky (unrestricted) piles meant that the overall project duration was reduced by 16 weeks, with piling being complete by June ’22 as opposed to initial antipated finish date of September ’22.