30 years ago, together with HOCHTIEF we achieved a still valid record to date at the EUROPIPE project: the largest and longest tunnel pipejack ever attempted from a single drive shaft. The #Herrenknecht slurry TBM successfully bored in one go 2,6km at the north coast of Germany. The tunnel provided the landfall connection on the German side for a new natural gas export pipeline from Norway. The tunnel lies some 6 to 8m below the surface and was needed to protect the coastal mud flats in the area which are part of an environmental sanctuary and national park. At high tide, the sea rises to about 15m above the tunnel exerting a potential 1.5 bar hydrostatic pressure at the tunnel level. Today, still impressed we look back at this adventure!!! #pionneeringundergroundtogether
To date, I still see this project as what the Apollo 11 mission (the first manned moon landing) was for space technology: a giant leap forward and never been surpassed in the 30 years following; Well done to all involved !
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we did the grouting mix design
Zu der Zeit war ich Jungingenieur bei HOCHTIEF. Das Projekt hatte volle Aufmerksamkeit neben dem täglichen Baustellen Einsatz. Bei Projektende war die Begeisterung und Freude groß! Lange ist es her! Hoffentlich bekommen die heutigen jungen Kollegen auch die Chance, Teilnehmer solch eines Projektes sein zu können!
If you did something equal , You have no choice but to be impressed by such an achievement. Awesome
Thomas Lindner - some of us still work with m-000 equipment 😅
Which geology did you tunnel in?
From memory they completed that way ahead of schedule
Still holding the world record for long distance pipe jacking! Impressive!
Wer bohrt kommt weiter!
1moProject no. M-137 …. Meanwhile we work on project no. M-3000!