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Guanjingkou Reservoir Water Transfer Tunnel
China, Chongqing
2017 – heute

Chongqing is one of the largest cities in China. However, the water supply structure often reaches its limit. In order to sustain the main urban area the city decided to build the new Guanjingkou reservoir.

Along the alignment, two Herrenknecht AVN machines will drive 18 km of tunnels. With a length of up to 5.660 m and overburdens of up to 325 m, tunnelling is only feasible with a special machine design.

Both machines will advance towards each other: after they reach the final position, the shield will be dismantled inside the tunnel and the main machine will be relocated back to the launch shaft – ready for the next mission and saving several reception shafts.


Land, Ort

China, Chongqing


2017 – heute




Heterogeneous ground:
Sandstone, mudstone, partly with conglomerate, shale and limestone


18.000 m


2x AVN2000AH:
Diameter: 2.650 mm
Torque: 250 kNm
Lining method: Pipe jacking

Ihre Ansprechpartner Kontaktieren Sie uns

Jack Brockway Geschäftsführer Herrenknecht Tunnelling Systems USA Inc.
Gerhard Goisser COO Herrenknecht Tunnelling Systems USA, Inc.