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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 Fort Elson ： ウィキペディア英語版 Fort Elson Fort Elson was one of the early Palmerston Forts, in Gosport, England, the northernmost polygonal land fort in the defence line to the west of Gosport. It was located on land immediately to the south of Elson Creek, to which it was connected by a sluice. Fort Elson was the most northerly fort in the line of five which formed part of the ‘Sea Front and Spithead Defences’, Inner Line, Land Front, Left Flank. This line of forts was later known as the Gomer-Elson Line or 'Gosport Advanced Line' This consisted of, from south to north, Fort Gomer, Fort Grange, Fort Rowner, Fort Brockhurst and Fort Elson. Work began on Fort Elson in 1855. The estimated cost of Fort Elson was £63,740 with the actual cost £61,180.〔http://www.victorianforts.co.uk/pdf/datasheets/elson.pdf Victorian Forts data sheet Victorian Forts and Artillery; Data sheet on Fort Elson〕 ==The Construction== Fort Elson was commenced in 1855 and completed in 1860. Fort Elson was already in existence when the Royal Commission on the Defence of the United Kingdom decided to complete the line of fortifications to the west of Gosport inner defences so technically it is neither a Palmerston Fort nor a Royal Commission Fort. The Commission decided to incorporate Fort Elson and Fort Gomer into the defences by adding three identical forts between them to form the Gosport Advanced Line.〔Report of the Commissioner’s appointed to consider the defences of the United Kingdom, together with minutes of evidence, appendices and correspondence relating to the site of an internal arsenal. 22.8.1859.〕 The method of construction was to build brick arches, similar to a railway viaduct, forming the main ramparts and then to pour earth on top allowing this to fall back through the arches, allowing it to be carried away a returned to the top once more, until the whole of the scarp rested upon their ends and the parapet was supported by the arches. This method was known as 'escarp en décharge'. It proved difficult and during the construction a major portion of the escarp slipped into the ditch during one night. 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「Fort Elson」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.