Last Updated
：2025/11/29
up-over
Noun
attributive
uncountable
Japanese Meaning
鉱山や土木工事において利用される竪坑掘削手法。まず下部の一点まで横（ドリフト）で掘り進み、その後上昇させる形で坑を拡大する方法。
Quizzes for review
(mining, civil engineering, attributive) A method of shaft excavation by drifting to a point below, and then raising instead of sinking.
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up-over
The mining company employed an up-over to reach the ore body from below when sinking was impractical.
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The mining company employed an up-over to reach the ore body from below when sinking was impractical.
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