…The Osaka-Kobe section, which was under construction in parallel, opened in 1874, and the Ishiyagawa Tunnel (61m long) in this section is considered the first modern tunnel in Japan. The construction of this tunnel was supervised by British engineers E. Morrell and J. Diack, but in the subsequent construction between Kyoto and Otsu, the 665m Osakayama Tunnel was completed by the Japanese alone (1880), and in 1884, the 1.35km Yanagase Tunnel was completed between Maibara and Tsuruga. Since then, as the construction of railways in Japan expanded, many tunnels were required in Japan's rugged terrain, and the need to overcome complex and difficult geological conditions such as volcanic conditions greatly promoted the progress of tunnel technology, making Japan one of the leading countries in tunnel technology. … *Some of the terms that refer to "Osakayama Tunnel" are listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…これと並行して工事が進められていた大阪~神戸間は74年開業したが,この区間にある石屋川トンネル(延長61m)が,日本の近代トンネルの第1号とされている。このトンネル建設は,イギリス人技師E.モレルやJ.ダイアックの指導を受けたが,これに続く京都~大津間の建設では,665mの逢坂山トンネルを日本人独力で完成し(1880),84年には米原~敦賀間に延長1.35kmの柳ヶ瀬トンネルを完成させている。以来,国内の鉄道建設の伸長につれて,地形の険しい日本では多数のトンネルが必要となり,また火山性などの複雑かつ困難な地質条件を克服する必要から,トンネル技術の進歩が大いに促進され,日本を有数のトンネル技術国たらしめることとなった。… ※「逢坂山トンネル」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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