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Cairo Metro Line 2
Egypt, Cairo
1994 – 1997

A spectacular project could be completed in 1997: A tunnel with a diameter of 9.4 meters for the Metro Line 2 in Cairo, with a total length of 22 kilometers and 20 metro stations after its completion. Project challenged include densely-populated residential areas, precious historic buildings and the first-time crossing of the Nile River.

Two identical Herrenknecht Mixshields performed their job excellently withstanding high water pressures beneath the Nile River at depths of up to 30 meters. In June 1995 and in December 1997, both machines reached the target shaft as scheduled; last but not least due to several innovative features, which had been developed for this project: a bidirectional cutting wheel, a vacuum erector for easy segment handling or an automated slurry circuit.

Data Sheet

Country, Location

Egypt, Cairo

Year

1994 – 1997

Application

Metro

Geology

Soft ground
Heterogeneous ground
Sand, groundwater

Tunnelling length

5,100 m

Machine Data

2x Mixshield:
Diameter: 9,400 mm
Lining method: Segmental lining
Cutterhead power: 1,000 kW
Torque: 9,060 kNm

Your contact person Contact us

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