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Shanghai Qingcaosha Water Transfer Project
China, Shanghai
2008 – 2010

High-quality raw water is becoming scarce in a city with a surface of 6,340 square kilometers and more than 20 million inhabitants. A network of water lines is plannend to compensate the deficit of six million cubic meters of raw water per day, including two parallel seven-kilometer-long tunnels crossing under the River Yangtze.

In Pudong the first TBM S-407 started tunnelling in April 2008 at a depth of 35.6 meters. Four months later the S-408 followed. The biggest challenge was to cope with the high water pressure. After 19 months the S-407 reached its target in Changxing followed by the S-408 that arrived at the target shaft in January 2010.

Data Sheet

Country, Location

China, Shanghai

Year

2008 – 2010

Application

Water

Geology

Soft ground
Heterogeneous ground
Grey fine clay, clayey silt, clay and sandy silt

Tunnelling length

14,352 m

Machine Data

2x Mixshield:
Diameter: 7,075 mm
Lining method: Segmental lining
Cutterhead power: 600 kW
Torque: 4,065 kNm

Your contact person Contact us

Jack Brockway President and CEO Herrenknecht Tunnelling Systems USA Inc.
Gerhard Goisser COO Herrenknecht Tunnelling Systems USA, Inc.