Projects
250 City Road
A distinctive London landmark
Services
Sector
Client
Engineer
CH2M HILL
Contractors
Morrisroe
Location
Islington, London
Duration
CFA: Pile Installation
Work was undertaken using our 100 ton Soilmec SR-95 high-torque multi-discipline piling rig using continuous flight auger (CFA) techniques. Piles were installed to depths of 32 metres.
We also designed the piles in-house in collaboration with the client and their structural engineers. Our work was sequenced to suit the phased release of areas and involved the installation of secant piles from a high-level platform and the relocation of plant and equipment to lower basement levels to install the bearing piles.
Restricted Access: Mini Piling
To allow us to tie into perimeter secant piles previously installed by others, we mobilised a Klemm 709 specialist restricted access mini piling rig. This also allowed us to construct the piles within the constrained areas adjacent to existing structures and carry out restricted access mini piling where there was low headroom for tower cranes.
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