K1 Knightsbridge
Location: Knightsbridge, SW1X, London
Client: Skanska
Start Date: November 2016
End Date: April 2018
Location: Knightsbridge, SW1X, London
Client: Skanska
Start Date: November 2016
End Date: April 2018
CapabilitiesCapabilities
- Buildings
- Substructure
- Demolition
- Adaptive Re-use
- Cut and Carve
- Structural Engineering
- Geotechnics
- Construction Method Engineering
- Temporary Works
- Buildings
- Substructure
- Demolition
- Adaptive Re-use
- Cut and Carve
- Structural Engineering
- Geotechnics
- Construction Method Engineering
- Temporary Works
SummarySummary
The K1 Knightsbridge project is a luxury mixed-use development opposite Harvey Nichols and One Hyde Park which transforms the Sloane Street end of Knightsbridge. It comprises commercial, residential, and retail space, alongside a new entrance to the Knightsbridge London Underground Station.
Wentworth's scope included the full façade retention scheme, with extensive underpinning of the existing foundation, and the provision of temporary works during the demolition phase, carried out by Keltbray.
Wentworth's scope included the full façade retention scheme, with extensive underpinning of the existing foundation, and the provision of temporary works during the demolition phase, carried out by Keltbray.
The K1 Knightsbridge project is a luxury mixed-use development opposite Harvey Nichols and One Hyde Park which transforms the Sloane Street end of Knightsbridge. It comprises commercial, residential, and retail space, alongside a new entrance to the Knightsbridge London Underground Station.
Wentworth's scope included the full façade retention scheme, with extensive underpinning of the existing foundation, and the provision of temporary works during the demolition phase, carried out by Keltbray.
Wentworth's scope included the full façade retention scheme, with extensive underpinning of the existing foundation, and the provision of temporary works during the demolition phase, carried out by Keltbray.
Delivering valueDelivering value
On a site full of unique arrangements and constraints Wentworth delivered a sensitive facade restraint scheme that was efficiently constructed in the congested Knightsbridge environment. The structural form changed to suit the structural requirements and local constraints including live services.
LUL assets including a station entrance and shaft protection were protected and preserved to maintain uninterrupted operation of the busy Knightsbridge station.
LUL assets including a station entrance and shaft protection were protected and preserved to maintain uninterrupted operation of the busy Knightsbridge station.
On a site full of unique arrangements and constraints Wentworth delivered a sensitive facade restraint scheme that was efficiently constructed in the congested Knightsbridge environment. The structural form changed to suit the structural requirements and local constraints including live services.
LUL assets including a station entrance and shaft protection were protected and preserved to maintain uninterrupted operation of the busy Knightsbridge station.
LUL assets including a station entrance and shaft protection were protected and preserved to maintain uninterrupted operation of the busy Knightsbridge station.
Key scopeKey scope
- Facade Retention: Given the highly variable nature of the façade and services restrictions, multiple solutions were needed to address the challenges. One solution involved vertically cantilevering frames, supported by kentledge within the existing vaults. In other locations we used horizontally spanning trusses, supported by a retaining tower constructed on-site, alongside the vertical frames. A third option involved frames supported by kentledge placed directly on the pavement.
- Basement propping for the existing structure, incorporating raking props, thrust blocks, and partial use of the existing basement slab. The existing basement level was lowered for the new development, requiring substantial foundations work. Deep underpinning was designed for both temporary and permanent conditions, with a particular focus on sequencing.
- Facade Retention: Given the highly variable nature of the façade and services restrictions, multiple solutions were needed to address the challenges. One solution involved vertically cantilevering frames, supported by kentledge within the existing vaults. In other locations we used horizontally spanning trusses, supported by a retaining tower constructed on-site, alongside the vertical frames. A third option involved frames supported by kentledge placed directly on the pavement.
- Basement propping for the existing structure, incorporating raking props, thrust blocks, and partial use of the existing basement slab. The existing basement level was lowered for the new development, requiring substantial foundations work. Deep underpinning was designed for both temporary and permanent conditions, with a particular focus on sequencing.
Key Challenges and SolutionsKey Challenges and Solutions
- The K1 Knightsbridge project faced several constraints, including heavily serviced pavements and the proximity of critical Transport for London and London Underground assets, such as Knightsbridge Station, Piccadilly Line tunnels, and ventilation shafts.
- Situated in a densely populated area, this development required careful coordination with all stakeholders. Wentworth implemented tailored solutions to address the specific demands of the site, ensuring stability and safety throughout the project.
- The extensive nature of the existing and future structure required very close co-ordination of the temporary works in order to avoid clashes and prevent any delays, something that was achieved using detailed 3D modelling within Tekla design software.
- The K1 Knightsbridge project faced several constraints, including heavily serviced pavements and the proximity of critical Transport for London and London Underground assets, such as Knightsbridge Station, Piccadilly Line tunnels, and ventilation shafts.
- Situated in a densely populated area, this development required careful coordination with all stakeholders. Wentworth implemented tailored solutions to address the specific demands of the site, ensuring stability and safety throughout the project.
- The extensive nature of the existing and future structure required very close co-ordination of the temporary works in order to avoid clashes and prevent any delays, something that was achieved using detailed 3D modelling within Tekla design software.