HISTORY
All construction materials – including the specially made saline-resistant concrete used on the recommendation of Seoul National University’s Technology lnstitute – and the entire construction process itself was carried out in accordance with ISO 9001 quality assurance standards. The fact that the airport was built on reclaimed land means that it is more than aware of the dangers of flooding.
Sheet pile around the terminal building and a ‘dewatering system’, which automatically activates upon detection of a rise in water levels, is a guarantee against the state-of-the-art complex flooding. In addition to other on-site drainage systems, the entire airport is protected from flooding by a 75-kilometre long system of storm drainage channels surrounding the airfield. Each channel is made of high strength pre-cast concrete
and designed to handle up to 103mm of rain per hour.
Incheon also boasts two reinforced road tunnels under the runway for airport vehicles crossing the airfield.
The tunnels, which are primarily used by cargo vehicles transporting shipments between the freight terminals and main passenger terminal, are 20 metres wide and 7.5 metres high and built from 110cm thick concrete that is designed to withstand A380 size aircraft. When the airport opened, it was linked to the mainland by a single 4.4 kilometre double-deck suspension bridge finished just weeks before it opened.
Built by a consortium spearheaded by Hyundai Engineering, the $250 million Yeongjong Grand Bridge was the final piece in Incheon Airport’s eight-year construction jigsaw.
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