北环线（Northern Link），为香港的拟建轨道交通支线之一，属港铁西铁线第二期。北环线将连接原有的西铁线锦上路站，及东铁线的落马洲支线，并在提供第二条连接落马洲站（福田口岸）的路线。
上海市中环线虹许路北虹路下立交工程是目前世界上在饱和含水软土地层中施工的横截面最大的管幕法工程。
The subway crossing project through Hongxu Road in Shanghai is the pipe-roof project with the biggest cross-section box culvert up to now in the world.
项目地块选址北邻普陀沟、南邻人寿金融城、西邻内环线。
The location of the project site is bordered by Putuogou, Renshou City and the inner ring to the north, the south and the west.
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