Author(s): Koji Sekiguchi; Toshiaki Shimizu; Takashi Arata; Hideki Hoshi; Hiroshi Saeki
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Keywords: Ice floe; Ice booms; Tension; Ice forces
Abstract: Lake Saroma is an inland sea-lake on the Sea of Okhotsk. As the lake's environment is suitable for aquaculture, it is widely used for natural sea farming. Ice floes usually reach the Okhotsk Sea coast of Hokkaido from late January through early February. When ice tloes arrive before Lake Saroma sufficiently freezes over, the inflow of ice into the lake damages aquaculture facilities. As a countermeasure for this, construction of ice booms to control ice tloes began in 1994 and 10 spans of 13 planned have since been completed. In this study, the effectiveness of ice booms to control ice floes in an actual sea area is confirmed, factors concerning the tension of the main wire, an important point in design, are analyzed using our research results, and the design and actual values are compared.
Year: 1998