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Exploding the gas risks underground

By: Language: English Series: Contract Journal ; 349(5719) 25 May 1989, 39-40(2)Publication details: 1989Subject(s): Summary: Assesses the threat posed by the presence of methane gas to tunnelling projects and to the construction of buildings underground.

Assesses the threat posed by the presence of methane gas to tunnelling projects and to the construction of buildings underground.