Andun were appointed by Hochtief construction (UK) Ltd at the Tender stage to assist with the LOCROS demolition and temporary works proposals.
The form A submission for Maryland identified a potential problem with the existing retaining walls in the temporary condition.
Andun were tasked with assessing existing retaining wall and providing a Form AA AB submission to demonstrate that the wall would remain stable during the temporary construction stages. Including loading from construction plant in the temporary condition. Andun provided a design solution which utilised piles being installed as part of the permanent works to ensure stability, thereby saving significant time and costs in comparison to the originally proposed temporary works.
Manor park posed the most technical challenges, with the requirements for the demolition of large sections of the raised walkway concrete/masonry walkway, in a site with restrictive access, and fragile OLE. Andun provided a unique solution to the problem which you can find out more about here.
The restrictive nature of the site meant that access for craneage required for the required an innovative design. Andun’s solution was to utilise the existing gravity retaining wall as the outrigger pads for the 500-tonne crane, thereby removing destabilising load from the rear of the wall, and actually increase the stability of the structure.