Development of Observation System of Motions for Working Craft and its Field Test

Abstract

In the marine construction work, many working crafts are used under the severe wave conditions. As for working crafts, motions influence on the efficiency of works. Up to this time, the judgment to continue or suspend the work is done by men based on the experience.
In this study, the system which observes the motions of working craft and displays the motions is developed. The field tests to evaluate the accuracy of this system were carried out in offshore site of the Port of Sendai.
This system supports the judgment for execution or interruption in marine construction works.