Deck Extension Job for BAM Nuttall

London City Airport has awarded a contract to BAM Nuttall for a new 75,000m² concrete deck extension.

The deck is an important first stage of construction, as part of the £480m City Airport Development Program.

According to BAM, the piling and decking contract value is approximately €95 million (£85 million) and BAM Nuttall is supported by its sister company BAM International.

The work entails BAM extending the airport’s concrete deck out over the King George V Dock supported by over 1,000 concrete piles with steel casings – each approximately 20m in length. Works on site will begin in Spring 2018.

Martin Bellamy, BAM Nuttall Executive Director, said: “We are delighted that BAM have been selected to deliver such a major marine civil engineering project that draws on our relevant expertise and experience.

The new deck will consist of precast reinforced concrete planks with a reinforced concrete topping spanning onto precast concrete beams supported on more than 1,000 large diameter bored concrete piles with steel casings in the dock bed (typically spaced at 10m centres). Average water depth is around 10m with the average pile length being approximately 20m.

Additional work includes the partial demolition of the King George V Dock wall to enable tying in of the new deck, construction of a partly submerged service trough and drainage channels, and approximately 50 land based piles adjacent to the airport entrance.

 

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