片磐坑道

English translation: Butt level

00:03 Dec 28, 2019
Japanese to English translations [PRO]
Bus/Financial - Mining & Minerals / Gems / Coal mining terminology
Japanese term or phrase: 片磐坑道
I am working on an academic paper about technological innovations leading to increased coal production in Japans mines in the late 19th and early 20th centuries.

My questions has to do with a part of a coalmine called “片磐坑道”. It appears in the following passage.

それまで用いられていた残柱式採炭法では,炭層の傾斜に沿って作られた卸おろし(大阪地方職業紹介事務局,1926,11 頁.主要な傾斜道はすべて卸と呼ばれた),それに直交する走向方向にいくつかの片磐坑道(炭層の走向とほぼ平行に作られた採炭を行うための水平坑道のこと(大阪地方職業紹介事務局,1926,11 頁),「片盤」とも書く)を掘進し,上下の片磐坑道間に坑道保護のため10‒20 間(1 間≒1.8 メートル)角の炭柱を残して,碁盤の目のように1‒2 間幅の切羽,一丁切羽をつけて採炭していた(荻野,1993,18 頁).

Does anyone know what this refers to?

Thank you.
Steve Henderson
United States
Local time: 18:08
English translation:Butt level
Explanation:
It would seem to be 'butt level,' as defined by by the JIS Kogyoyo Daijiten, 1982 edition (I know it's old, but still serviceable). It appears to mean drilling a vertical or angular shaft parallel to the direction of the coal seam, and of a suitable width. The JIS explanation (below) seems to be roughly analogous to Cinefil's explanation.
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Nicholasl
Canada
Local time: 21:08
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Summary of answers provided
3Butt level
Nicholasl
Summary of reference entries provided
FYR
cinefil

  

Answers


4 days   confidence: Answerer confidence 3/5Answerer confidence 3/5
Butt level


Explanation:
It would seem to be 'butt level,' as defined by by the JIS Kogyoyo Daijiten, 1982 edition (I know it's old, but still serviceable). It appears to mean drilling a vertical or angular shaft parallel to the direction of the coal seam, and of a suitable width. The JIS explanation (below) seems to be roughly analogous to Cinefil's explanation.

Example sentence(s):
  • 一般に炭層の走向にほぼ平行に掘削した坑道で普通坑又は立坑を中心として左右両側に適当な間隔をおいて掘進される

    Reference: http://www.coaleducation.org/glossary.htm
Nicholasl
Canada
Local time: 21:08
Native speaker of: English
PRO pts in category: 4
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Reference comments


44 mins
Reference: FYR

Reference information:
かた‐ばん【片盤】
炭坑で、炭層の走向に平行して岩石中に掘進された水平坑道。
広辞苑 第四版

https://www.scientific.net/AMM.488-489.778

cinefil
Japan
Specializes in field
Native speaker of: Native in JapaneseJapanese
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