pipe roof

基本解释

For the case of safety, its construction will adopt pipe-roof culvert box jacking method.
为慎重起见，拟采用管幕保护下的顶进法施工。
Up to now, the subway crossing project through Hongxu Road is a pipe-roof project with the biggest cross-section box culvert in the world.
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。
A series of research on mechanical behaviors of big pipe-roof in shallow large-span loess tunnel was made on Wenxiang Tunnel in Zhengzhou-Xi'an Special Passenger Railway.
以郑西客运专线阌乡隧道为依托工程，进行浅埋大跨黄土隧道长大管棚受力机制的研究。

The ancient, all-of-a-piece jumble of khaki fieldstone buildings, wooden shutters and half-pipe roof tiles is as spruced up as a resort these days, with no graffiti in sight or tumbled ruins or paving stones out of place.
FORBES: Brunello Cucinelli: Life By Design