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Field and Numerical Investigations on Siltation Mechanism in Kumamoto Port

by Kazuo Murakami, Ministry of Transport, Yokosuka, Japan,
Hiroichi Tsuruya, Ministry of Transport, Yokosuka, Japan,
Isao Irie, Ministry of Transport, Yokosuka, Japan,



Document Type: Proceeding Paper

Part of: Coastal Zone '91

Abstract:

Synthetic investigations on siltation mechanism in Kumamoto Port were carried out by field observations, laboratory tests, and numerical simulations. Natural conditions such as tides, tidal currents, winds, waves, etc. were observed in order to understand the external forces on mud transport. Three artificial test trenches were constructed to know the effects of siltation reduction by a submerged dike. Numerical predictions for the future plan in Kumamoto Port was conducted by mathematical modeling. It is predicted from the calculations that the submerged dike has an effect on siltation volume reduction in the access channel and the anchorage of Kumamoto Port by about 30% of the total deposition without the submerged dike.

Subject Headings: Ports and harbors | Numerical models | Silt | Field tests | Tides | Numerical analysis | Levees and dikes

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