海洋開発論文集
Online ISSN : 1884-8265
Print ISSN : 0912-7348
ISSN-L : 0912-7348
ボスポラス海峡横断鉄道トンネル建設工事の函体沈設に関する実験的検討
織田 幸伸伊藤 一教上野 成三小山 文男木村 政俊栄枝 秀樹
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2006 年 22 巻 p. 957-962

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The immersed tunnel project crossing over the Bosphorus Strait located in Istanbul, Turkey, is under construction. The immersion procedure was carefully examined by mans of a physical model test, because the current field of the Bosphorus Strait is complicated and has two-layer system consisting of surface southwards flow and bottom northwards flow. The objectives of the model test are: to measure the mooring forces for all immersion processes, to check behavior of a placing barge and a tunnel element during immersion process, and to confirm immersion procedure using winch work. A seventeen mooring wires are used for completing the immersion of a tunnel element, and the mooring forces of all wires in each immersion process were measured. Based on the average/maximum forces of wires through the all model tests, the designed winch capability was determined.

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