Shenzhen Mawan Project
China, Shenzhen
2021 – today

The "Mawan Cross-Sea Passage" in Shenzhen will be a total of 8.05 kilometers long. 2,060 meters of the twin-tube road tunnel, each with three lanes, will be built under the sea by mechanized tunnelling. 

On 30 October 2021, a 15.51-metre-wide, 105-metre-long and 3,700-tonne Herrenknecht Mixshield started its work on one of the two tubes. In addition to soft ground, hard rock and fracture zones with strengths of up to 193 MPa await the TBM "Pengcheng" underground. The minimum curve radius is 600 meters.

Data Sheet

Country, Location

China, Shenzhen


2021 – today




clay, silt, sandy clay, weathered granite

Tunnelling length

2,060 m

Machine Data

1 x Mixshield
Diameter: 15,510 mm
Lining method: Segmental lining
Cutterhead drive power: 5,600 kW

Your contact person Contact us

Steffen Dubé President and General Manager Herrenknecht Tunnelling Systems USA Inc.
Gerhard Goisser Commercial Manager Herrenknecht Tunnelling Systems USA, Inc.