Cork Street / New Bond Street

New Bond Street, Mayfair

Project Information

Cork Street, The Spiritual Home of Modern and Contemporary Art in London

The Cork Street/New Bond Street project was a sensitively designed façade retention and refurbishment scheme, with significant new build on a complicated site, spanning several building plots.  The redevelopment of the site was designed to provide new art gallery space, new retail and office space over 6 floors, including a basement level.  

The basement was extended from New Bond Street top lots in Cork Street Mews which were located in the middle of the site.

We were appointed by Kier Construction initially to install 39no permanent bearing piles within the existing buildings. Our contract scope was later extended to 71no. piles and additional temporary works piles.

Restricted access piling methods were required owing to the limited space and headroom on site.

highlights

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Restricted Access Piling  

Our Super Kitten rig and power pack are able to operate in very tight spots with limited headroom. Mini piles, 340/300mm diameter, were formed using a bored temporary cased system, with up to 6m of temporary casing. Pile were installed at distances of less than 500mm from the wall to the centre of pile. They were designed depths of between 10m—24.5m and for safe working loads of between 200-600kN. A few of the piles encountered concrete obstructions which required some coring works, which we were able to achieve using the same rig.

Concreting

Piles were formed using site batched sand cement grout. Grout was the preferred solution due to poor site access and difficult site logistics which prevented conventional concrete pumping.

Timely Production  

We were pleased to achieve pile productions of up to 3 piles per day, which was excellent given the overall site constraints. Our works were completed as scheduled to the satisfaction of the client.

Project
Cork Street / New Bond Street
Engineer
Contractor
Kier
Services
Rigs
Duration
12 weeks
Value
£240k
Location
New Bond Street, Mayfair
Status
Completed
Project summary
Project summary
Project
Cork Street / New Bond Street
Engineer
Contractor
Kier
Services
Rigs
Duration
12 weeks
Value
£240k
Location
New Bond Street, Mayfair
Status
Completed