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WWII Bunker
In article .com,
lonelytraveller writes What I meant was, wasn't it possibly for them just to add the prefabricated steel tunnel rings into an already existing cavern? It would save a lot of effort. Even if such a cavern existed (which I doubt), putting a line of steel rings across it isn't easy - they'll all fall down! You need to build a viaduct across it (as was done on line 7bis in Paris). Or are you suggesting that there's a natural tunnel-shaped cavern under East London? -- Clive D.W. Feather | Home: Tel: +44 20 8495 6138 (work) | Web: http://www.davros.org Fax: +44 870 051 9937 | Work: Please reply to the Reply-To address, which is: |
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