Basements and substructures

At Careys we’ve delivered bespoke solutions for our clients, overcoming numerous challenges on an array of complex basements and substructures.

Our project at 105 Victoria Street, we were responsible for constructing the remaining two-level basement structure, including waterproofing.  One of London's most sustainable projects, we partnered with our reinforcement supplier, Express Reinforcement, to recycle temporary steel props to produce new reinforcement bars for use in the new structure - all 100% recycled in the UK.

At One Nine Elms, we constructed the massive three-level basement, completing one of our largest continuous concrete pours ever – pouring 4,852m3 over a 36 hour period (the equivalent to over 650 trucks of concrete).

Other notable projects include the five-storey basement at Audley Square Redevelopment, the mammoth four-storey basement at St Giles Circus and sinking a vertical shaft using a slipform system to a depth of 120m below ground at the UK’s first mining project in three decades.

Substructures

When we create substructures, we not only utilise conventional bottom-up methodologies, but we also use more cutting-edge top-down methods. These make it possible to construct the superstructure at the same time as the basement and excavation works are being delivered, as witnessed at Marble Arch Place where the topping out of the residential structure and completion of the basement were delivered within mere weeks of each other.

To achieve the excellent standards we demand of ourselves and promise to our clients, we are pioneers in using the latest construction techniques and employ robust health and safety protocols on all our projects. For example, at 22 Bishopsgate, we used a jump form rig - the first of its kind to be used in the UK - enabling us to more efficiently, quickly and safely construct the two concrete cores.

When we create substructures, we not only utilise conventional bottom-up methodologies, but we also use more cutting-edge top-down methods. These make it possible to construct the superstructure at the same time as the basement and excavation works are being delivered, as witnessed at Marble Arch Place where the topping out of the residential structure and completion of the basement were delivered within mere weeks of each other.