Method of building a tunnel and tunnel built according to said method
作者： De Koning Jan , Van Der Veen Romke
DOI:
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摘要: In order to prevent sinking of a tunnel the invention provides less expensive method building in bottom body water, whereby trench is dredged said and foundation layer, supporting elements, arranged trench, that till depth at least twice height under surface be built, which ballast bed material, like sand, arranged.
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