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Leven Road
Description
The existing building the façade was to be retained on all exposed faces. It was 2.5-storeys high with foundations that included vaults/arches beneath live public highways on the 2 faces. Neighbouring live residential Blocks and houses which placed various restrictions on how works were undertaken. Each phase comprised of complex demolition supported by facade retention and temporary works systems. The location within a very busy London area had implied various restrictions on deliveries, noise, working hours, interface with the general public, muck-away, craneage & environmental considerations. The River Lea was founded on 2 faces which posed the additional challenge of working nearby waterways.
Construction Features
- Strengthening of the Walls and Towpath to the River Lea, including replacement of old anchors.
- Controlled removal of Asbestos in various forms.
- Design, Installing and Maintaining Temporary Works and Facade Retention system.
- Installing of permanent works during the demolition.
- Use of bespoke Complex Reach and Selector Grab plant.
- Sequential Dismantling of the roof structure-cutting of roof trusses with pulverisers approximately 2m inside support columns, such that the roof and coverings hung from the purlins and are stripped with a selector grab.
Innovation
- Dynamic Temporary works solution that evolved to cope with existing and unknown conditions associated with old, historic building.
- Design and Use of Structural steelwork system to act as a composite demolition and Permanent works frame.
- Testing, Onsite Treatment and Decontamination of hazardous soils.
- Designing and Installing of new Anchors and Sheetpiles to the River Lea Walls and towpath.
- Onsite crushing and testing of arisings for reuse within the enabling works.
- Structural review and re-design of the steel members recycled from the demolition.