Paddington Square

Collaboration

Programme efficiency was achieved through collaboration by the three specialists during the preconstruction stages, and resulted in seamless on-site delivery. Excellent planning of site excavation works by Erith* provided programme certainty for our works to the substructure and primary core; and the piling works carried out by Expanded were completed successfully to enable the excavation of the basement to commence.

[*Erith’s excavation strategy included the design and construction of a temporary loading gantry which enabled large volumes of excavated material to be rapidly removed from site without putting pressure on the separate loading bays on the public highway].

Logistics

Early engagement with the City of Westminster along with the production of a joint delivery strategy dealing with site logistics and traffic management dramatically reduced congestion on site.

Concurrent Basement and Slip Form works  

Complex basement works over four levels involved part “top down” construction methodology and the use of permanent and temporary plunge columns.  The installation of temporary secant piled walls enabled the bulk excavation works from a single access point.

Part of the site remained “blue sky” to maximise the removal of excavated material and to allow the primary core to be slipped from basement level.

Precast

Precast 'twin wall' panels to the second core were delivered on a just time basis for installation, reducing congestion on site as well as programme delivery time. The finish on the primary core using slipform methodology was exceptional.