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  Content Type Features
  Date 2004
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Hammering along at Heathrow
01 July, 2004
Underground construction for London Heathrow Airport's new Terminal 5 scheme is progressing rapidly, with a number of tunnelling projects now complete. Assistant editor, Patrick Hudd, visited the site this May and reports on the current Piccadilly Line and Heathrow Express extensions

Ground freeze remedy at Hull
01 February, 2004
During the construction of a 3.6m i.d. flow transfer tunnel in Hull, UK, a 100m length of completed tunnel collapsed. In her Harding Prize finalist paper, Sarah Munks, former tunnel engineer for Ove Arup and Partners, describes the incident and the artificial ground freezing employed, which permitted the reconstruction of the tunnel along its original alignment