Ground Improvement in Tokyo/Haneda International Airport Expansion Project
Port and Airport Research Institute, 3-1-1 Nagase Yokosuka, 239-0826, Japan.
Tokyo/Haneda International Airport was found in 1931 as the first primary airport in Japan where a runway of 300m was operated. The airport had been expanded several times for cope with the rapid increase in air transportation, and the current airport has three runways and two terminal buildings on the man-made island. In order to cope with the recent and future increase in air transportation and future operation of some international flights, the construction of fourth runway was planned in 2001 and started in 2006. The runway is presently under construction on the man-made island to the south of the existing airfield, and is planned to be completed by 2010. As soft soil stratums were stratified at the construction site, several ground improvement techniques were employed to improve the ground. As the project site was adjacent to the current airport, large part of the construction site was regulated as restricted area under the Civil Aeronautics Act of Japan. Under the limitation, the construction project has been progress with very tight schedule to be completed by 2010. In this paper, application of the ground improvement techniques at the site is briefly introduced as well as the outline of the construction project.
Keywords: Ground improvement; Land reclamation; Airport.
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