The demolition of an 8 storey office block and 5 storey King Mall Shopping Centre multi-storey car park, split into 2 phases to allow the commencement of scheduled construction works in between phases.
The office block and RC frame multi-storey car park, part cast in-situ, part pre-cast, both required a mix of top down and high reach demolition and protective scaffolding. Temporary propping was required to remove their link bridge structure. A Network Rail viaduct was also included in the demolition scope of works.
The first phase of DDS works removed all notifiable and non-notifiable asbestos and soft strip of both buildings. The majority of the office block was razed along with half of the multi-storey car park, including the grubbing up of all slabs and foundations, whilst retaining public function of the car park by careful segregation. The retained section of the car park had to remain live throughout the demolition and the following construction phase of the work. The DDS engineered solution maintained structural stability and incorporated the installation of traffic barriers and full height protective screens. In addition, along the cut line of the car park an acoustic jumbo stud wall was installed to dampen the noise created from the demolition process.
Phase 2 consisted of the demolition of the remainder of the structures down to ground level along with removal of a Network Rail viaduct.
Along the southern boundary ran three railway lines, necessitating DDS and St George to collaboratively gain London Underground approval, with scheduled attendance throughout. The site was surrounded by offices, shopping centres, residential apartments and a school. Dust and noise emissions were closely monitored and techniques employed to minimise at source including a full time operative to monitor and clean the surrounding public areas.