blind shaft

Japanese: blind shaft(英語表記)blindshaft
blind shaft

…A vertical shaft may be open to the surface or not. The latter is called a blind shaft, but in this case the entire structure, including the hoist, rope pulleys, etc., is contained within the shaft.
[Inclined shaft]
An inclined shaft is a passageway that leads underground at an angle, but it is distinguished from a vertical shaft by the size of its inclination angle.

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

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…立坑には,地表に口を開いているものとそうでないものとがある。後者は盲立坑blind shaftと呼ばれるが,この場合,巻上機やローププーリーなどの構造はすべて坑内に収められている。
[斜坑inclined shaft]
 斜坑は斜めに地下へ入って行く道であるが,立坑との区別は傾斜角の大きさによる。…

※「blind shaft」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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