pontoon

Japanese: pontoon
pontoon

...Note that a pier equipped only with mooring facilities on a pier is called a dolphin, and is distinguished from a pier. A pier without a pier, which uses a box-shaped floating structure called a pontoon stabilized in position by mooring chains, piles, or dolphins, is called a floating pier. Floating piers are not subject to destruction by earthquakes or difficulties in loading and unloading due to changes in tides, but are vulnerable to waves, so their use is limited to calm waters.

*Some of the terminology explanations that mention "pontoon" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…なお,脚柱の上に係留施設のみを備えたものはドルフィンdolphinと称し,桟橋とは区別する。また脚柱をもたず,ポンツーンpontoonという箱形の浮体を,係留鎖もしくは杭やドルフィンで位置を安定させたものは浮桟橋pontoon bridgeと呼ばれる。浮桟橋は地震による破壊や潮位の変動による荷役の困難さはないが,波浪に弱いので静穏な水面など利用範囲は限られる。…

※「pontoon」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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