The Project
Impressions from the project process
The 180 m long tunnel elements are cast in eight individual segments each 22.50 m long – monolithic, without ties and in compliance with strict dimensional tolerances.
The internal formwork moves hydraulically over the launching beam into the reinforcement cages.
A total of 33 tunnel elements will be produced using two production lines: each 180 m long, 38 m wide, 11.40 m high and weighing 72,000 t.
The finished tunnel tubes with lengths of 180 m are moved from the field factory into a dry dock, sealed with bulkheads and lowered gradually to reach sea level. Pontoons stabilize the tunnel sections during towing operations to the lowering point in the South China Sea.
Realization of the three-cell cross-section is achieved using the incremental launching method by means of three sets of tunnel formwork as horizontal moving device.
Lin Ming
Project Director
PERI have impressed us not only with their technical competence and enormous project experience, but also with the high degree of efficiency and ability to cooperate closely with us. We would like to thank the PERI project team for their superb realisation of this unique project.
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