底開バージ土砂投入直後に発生する気泡流動場の観測

抄録

Recently, a large workboat is often used from the viewpoint of the economy in the case of the large-scale construction such as the offshore airport and offshore man-made island. It is afraid of the influence of turbidity water to the environment by this construction to throw a large quantity of earth and sand and a rubble stone by using the large hopper barge.
Therefore, in order to reproduce the behavior of turbidity due to the earth and sand injection, several numerical models have been developed. However, because the occurrence mechanism of turbidity at the time of the earth and sand injection is complex, it can't be said that it is fully being cleared as for the property of turbidity water that occurs specially around the surface of the water.
So, local observation is enforced by this research for the purpose of examining the occurrence mechanism of the turbidity around the surface of the water. And, it is examined about the influence of the bubbly flow in the earth and sand injection that exerts it on the turbidity around the surface of the water by using the observation result.