- Pneumatic tunnelling with open bonnet blade
- Roadheader excavator and scrapers
- Dry conveying
- Compressed air up to 0.7 bar
- Triple press pit DN 2200, DN 1800, DN 1600
- Crossing German railway, tram, roads
- DN 1600 section with S-curve and R = 200 m
- Own sluice system DN 1800
- Conversion of DN 2200 sluice system to DA 2800
Unbundling Barchembach Essen
- Specialised civil engineering
- Eiffage Infra-Spezialtiefbau
