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TERMINAL TERRACE:

TERMINAL TERRACE: Retaining wall designer and contractor Phi Group recently completed 2,700m2 of retaining structures on the northern perimeter road improvements at Heathrow Airport. The Cheltenham-based company was responsible for the detailed design and construction of three terraces forming the retaining walls for a new 800 space car park close to the tunnel entrance to the central terminal area, opposite the famous Concorde model. The terraces were built using Phi Group's Keystone system - a dry build retaining wall that combines 'the natural appearance of quarried stone with the long term durability of high strength concrete'. As part of the two year contract, the company also built reinforced earth embankments and used soil nailing to strengthen the existing embankments.

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