Experimental study of wave forces on the moored cables of oyster forming platform induced by large waves

• Main Authors: I-Ching Chen, 陳意青
• Other Authors: Wen-Kai Weng
• Format: Others
• Language: zh-TW
• Published: 2010
• Online Access: http://ndltd.ncl.edu.tw/handle/71811551104227764732

碩士 === 國立臺灣海洋大學 === 河海工程學系 === 98 === This research is focusing on the " floating structures oyster culture rack equipment" on the subject , this main propose of the research in to investigate of oyster farming with floating structures in the sea to know the stressed state with big waves on the oyster frames with floating structures. The first, the research in to investigate of oyster frames with floating structures deconstruction by force and force balance mechanism from mechanics. A series of model tests were carried out in the wave flume to know the influence of oyster string and forces of cable under big waves impact. The result of research showed that differences of forces on lee side and bow side of the floating oyster rack are big when moored angle with 30 degree. And the force of cable is small when moored angle with 90 degree. The proposed under floating oyster frames from the floating roof should be anchored 0.5 to 1.0 fold the water depth, the force of cable will be smaller, and the difference of forces of cable on the lee side and bow side will be smaller than average too. During the typhoon, setting another mooring system in Lee side of oyster farming platform will increase its safety and stably efficiency, The front and rear of floating oyster frames mooring ropes with the anchor weight should be more than 2 tons. When the large distance between strings and longer string will cause a lower forces on mooring lines, and making floating structures oyster frames with big waves have higher stability.