Canal lift - Canal lift

Japanese: 運河用昇降機 - うんがようしょうこうき
Canal lift - Canal lift

...The method of canalizing a river using locks is called the barrage method (Figure 2), and is the most common method of canalization today (canals with locks are sometimes called gated canals). In the barrage method, the head of a single barrage is about 5 to 15 meters; if the head is greater than this, it is necessary to build multiple locks or to install a canal lift. In the case of a multiple lock, the head of each step must be equalized to ensure that the amount of water sent from upstream to downstream is constant. ...

*Some of the terminology used to refer to "canal elevators" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…閘門を使って運河化する方法は堰閘法(図2)と呼ばれており,現代の運河化はこれが一般的な方法である(閘門をもつ運河を有門運河と呼ぶこともある)。堰閘法において,一つの堰による落差は5~15m程度であり,落差がこれより大きいと閘門を多段式に造るか,運河用昇降機(リフト)を備える必要がある。多段式閘門の場合,1段ごとの落差を等しくして,上流から下流に送られる水量を一定にしなければならない。…

※「運河用昇降機」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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