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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク South Channel Fort ： ウィキペディア英語版 South Channel Fort South Channel Fort, also known as South Channel Island, is a 0.7 ha artificial island in southern Port Phillip, Victoria, Australia, 6 km north-east of the town of Sorrento. It was part of a network of fortifications protecting the narrow entrance to Port Phillip. It is 122 m long, 76 m wide, and is 6.4 m above sea-level. It was built on a shoal, close to the main shipping channel of the bay, with 14,000 tonnes of bluestone boulders, concrete and sand. It was constructed during the 1880s as part of a defensive strategy to protect and control access by sea to Port Phillip and the cities of Melbourne and Geelong. It still contains remnants of its original military equipment, including disappearing guns.〔(Parks Victoria: South Channel Fort – Victoria’s only artificial island ) downloaded 29 November 2007〕 ==Construction== South Channel Fort was built with a protective ring of bluestone rocks which also provided a foundation. Concrete cylinders were then sunk through to the sandstone base rock below. Resting on these is a thick table of concrete and brick with atop the concrete structure of the fort. Sand was then placed on top of the gun emplacements to absorb impact from any projectiles.〔(South Channel Fort - Visitors Guide )〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「South Channel Fort」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.