Abstract
A new offshore runway (D-runway) is under construction in the Tokyo International Airport (Haneda Airport) to handle the increasing aviation demand in future. A part of expansion locating at the Tama River mouth is supported by the numerous pile structures and the other made in reclamation (combination-type). The pile structure parts called “jetty parts” is planned not to prevent the flush from the river. The monitoring of flow pattern, wave height as well as the maritime environment will be carried out even after the completion airport completion. As part of the monitoring projects, the flow pattern around the jetty parts are studied in an experiment with the 1/200 scale model representing the river, airport and local topography. The experimental results demonstrates that set-up in the river water level is not varied even after the completion of the jetty parts. The jetty parts become obstacle to prevent wave propagation in the river area and reduce the wave height in the river mouth.
