Oze - Oze

Japanese: 大背 - おおぜ
Oze - Oze


[Mountain tunnel construction method]
Mountain tunnel construction methods assume that the geology is rock or diluvial soil, and use excavation methods such as bottom-set pilot tunnel advancement upper half section method, side wall pilot tunnel advancement method, bench method (upper half section advancement method), and full section excavation method. Of these, full section excavation refers to a method in which the completed section (full section) of the tunnel is excavated in one go, while the others involve dividing the full section into sections such as bottom-set pilot tunnel, upper half section, oze (lower central section), and dobera (side wall section), which are excavated in sequence (a to d in the figure). When the geology is good, full section excavation is used, and partial excavation methods such as bench method and pilot tunnel advancement are selected depending on the geology. …

*Some of the terminology explanations that mention "Ose" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:


[山岳トンネル工法]
 山岳トンネル工法とは,地質は岩または洪積層の土を前提として,底設導坑先進上部半断面工法や側壁導坑先進工法,ベンチ工法(上部半断面先進工法),全断面掘削工法などの掘削方式を用いるものである。これらのうち全断面掘削とは,トンネルの完成断面(全断面)を一度に掘削してしまう方式をいい,その他は全断面を底設導坑,上部半断面部分,大背(おおぜ)(下半中央部),土平(どべら)(側壁部分)などの部分に分けて順次掘削していくものである(図のa~d)。地質が良好な場合には全断面掘削とし,地質に応じて部分掘削方式であるベンチ工法や導坑先進工法が選択される。…

※「大背」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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