22-24 St Petersburgh Mews, London. Basement Construction
All Foundations designed a 4.0m deep basement construction between two existing Mews houses in London with access via the Mews.| Client: | |
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| Value of Foundations: | £270,000. |
| Duration of Works: | 7 months. |
| Scope of Contract: | Demolition, underpinning, basement construction. |
All Foundations were asked to construct a 4.0m deep basement between two existing Mews houses. Access was restricted, via the Mews.
The works
All Foundations demolished existing mews houses and installed temporary shoring to ensure stability of the existing dwellings. The works included the underpinning of the existing Mews houses and boundary walls and the installation of a contiguous bored pile wall through wet, unstable ground, using temporarily cased piles and hollow stem grout injected piles.
The works were completed with the construction of a reinforced concrete capping beam, installation of a sacrificial lateral temporary propping, excavate to 4.0m, and form a reinforced concrete basement slab, reinforced concrete lining walls and suspended ground floor slab.
Said Ian Cull, Southern Area Director, “We are invited to tender for quite a few basements in the London area. This is an area of expertise for us and, due to the complexity of constructing basements, it is not the type of works that many contractors can undertake without referring to specialist contractors such as ourselves.”
