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Construction of circular support structures for tunnelling

Closed circular support structures


Construction of closed circular pipe structures for tunnelling underneath railway line embankments to compensate static pressure and to avoid settlements.


Construction of tunnel side walls


Roofing: Construction of tunnel side wall structures consisting of vertically installed pipes




Construction of underpasses up to 4 m diameter as access or passage ways.


Pipe roofing


Construction of a pipe roof consisting of horizontally installed steel pipes.

Further information



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