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1.前言 津轻海峡线以津轻线中小国站为起点,经青函隧道至江差线木古内站。其延长为87.8km,是既有线中二级线标准的线路。其中,本州一侧的线路由中小国起点1K700m处与津轻线分离,拐入新中小国信号场,在大平附近进入与将来的北海道新干线合用的区间(三线轨道方式)。因此,这段线路经大平隧道(L=1450m)、津轻隧道(L=5880m),以及配属的新津轻二股信号场和维修基地,再经大川平隧道(L=1330m)等处至青函隧道,共计19.2km(参阅本杂志Vol.14,No.7)。
1. Introduction The Tsugaru Straits Line starts with the Tsugaru Line Small and Medium Country Station and passes the Green Lane to the Mukubei Station of the River Line. It is extended to 87.8km and is a standard line for secondary lines in existing lines. The line on the state side is separated from Tsugaru Line at 1K 700m from the starting point of small and medium-sized countries and traced to the Signaling Field of Small and Medium-sized New and Middle Kingdom, and enters the range (three-track orbit) that is used in conjunction with the future Hokkaido Shinkansen in the vicinity of Ohira. Therefore, this section of the route will be connected to the Green Sign tunnel via Daping Tunnel (L = 1450m), Tsugui Tunnel (L = 5880m) and the associated Xinjinqiang Second Signal Field and Maintenance Base, and then via Okaeki Tunnel (L = 1330m) Total 19.2km (see the magazine Vol.14, No.7).