UNDERGROUND SOLUTION PROVIDER

Fernwärmesystemanbindung West, Los T1 Tunnel, Hamburg, Germany

TBM contributes to thermal energy tunnel construction beneath the Elbe River

In view of the high water pressure environment in the project and the strict requirements for settlement control, CREG has customized the Φ 4.57 m TBM integrating a number of advanced technologies, which has greatly enhanced the safety, comfort and environmental protection during TBM operation.

Project Background

The Hamburg Thermal Energy Tunnel, serving as the "throat" passage for heat supply connecting the industrial area and the urban area, will convert the waste heat generated during the operation of the industrial area in southern Hamburg into urban heating and transport it through the tunnel to northern residential area, replacing existing coal-fired power plants and natural gas heating.

right side

FWS-West Tunnel Route

CREG service team celebrates the breakthrough of the tunnel.

The TBM assembly is in progress.

Project Information

Tunnelling length: 1,165 m
Geology: Mica clay, marl
Contractor: Implenia

TBM Parameter

TBM type: EPB TBM
TBM S/N: CREC 1144
Boring Dia: 4.5 m
Main drive power: 660 kW
FAT date: September, 2022
Best performance: 20.4 m per day

Project Characteristics

The water and earth pressure is up to 4.5 bar.
The tunnel travels beneath the Elbe river and thus settlement control is extremely demanding. Independent man lock meeting CE standard
is introduced to small diameter TBM for the first time.