Dragline

Japanese: dragline
Dragline

...Shovel capacity is 0.3-3.1m3, maximum digging depth is 3.7-9.6m. DraglineA machine that digs by pulling a bucket (capacity 0.3-3.1m3) suspended from a long boom by a wire rope toward the user. It is used for removing topsoil below ground level, digging and dredging waterways, and collecting gravel, but it has poor digging power and is not suitable for digging hard soil. ClamshellA machine that digs by using an opening and closing bucket (called a grab) suspended from a boom by a wire rope. ...

*Some of the terminology that mentions "dragline" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…ショベル容量は,0.3~3.1m3,最大掘削深さは3.7~9.6m。 ドラグラインdraglineワイヤロープによって長いブームからつり下げたバケット(容量0.3~3.1m3)を,手前に引き寄せて掘削を行う機械で,地面より低い表土のはぎ取り,水路の掘削や浚渫,砂利採取などに使用されるが,掘削力が劣り硬土盤の掘削には適していない。  クラムシェルclamshellブームからワイヤロープによってつり下げた開閉するバケット(グラブという)によって掘削を行う機械。…

※「dragline」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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