A PROJECT FOR THE FIELD OBSERVATION OF SEISMIC BEHAVIOR OF FULL-SIZED TEST GRAVITY TYPE QUAY WALL

摘要

A field observation of dynamic behavior of full-scaled test gravity type of quay wall during earthquakes is under action in the Port of Kushiro, Hokkaido, Japan. This project aims to reveal the mechanism of the damage to quay walls associated with the earthquake induced liquefaction of the backfill ground, and provide information for the evaluation of earthquake earth pressure on retaining structure and the development of rational seismic design method for gravity type quay wall. Some records of the dynamic behavior of the test quay wall have been obtained so far, including that during the 2003 Tokachi-oki Earthquake, where the test quay wall was shook with the seismic intensity of rank III. In this paper the outline of the project is introduced, and the structure of the test quay wall and the observation system for the dynamic behavior are explained. And the vibration behavior of the test quay wall during the 2003 Tokachi-oki earthquake is briefly presented.