Pipe roof support is an assisted method of shallow tunneling.

管棚支护是浅埋暗挖法施工中的一种辅助工法。

youdao

This paper has presented the construction technique of the assembling in site about the large-span steel pipe roof truss and the technique of integral lifting about the truss.

本文主要介绍大跨度钢管桁架的现场拼装和整体提升的施工技术措施。

youdao

The paper discussed common problems of pipe roof support engineering in soft ground and presented the optimization technology by tests on borehole construction methods with existing equipments.

在软弱土层管棚支护工程中，利用现有设备试验了多种成孔方法，优选出最佳成孔法，加快了工程进度。

youdao

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

This means selling things like sewer pipe and roof trusses.

FORBES: Magazine Article

Hawkins paces out just one square foot of foreshore and picks up Victorian plate, modern glass, oyster shell, medieval roof tile, granite ballast from merchant ships and clay pipe stems.

BBC: London from the tide line