Image from Google Jackets

Heathrow tunnel collapse

Language: English Series: Building ; 259(7866) 28 October 1994, 8(1)Publication details: 1994Subject(s): Summary: Discusses the investigation into the collapse of underground workings at Heathrow airport, highlighting the use of the New Austrian Tunnelling Method, the New Engineering Contract and delays to the Jubilee Line extension.

Discusses the investigation into the collapse of underground workings at Heathrow airport, highlighting the use of the New Austrian Tunnelling Method, the New Engineering Contract and delays to the Jubilee Line extension.