pipe-roof method

基本解釋

For the case of safety, its construction will adopt pipe-roof culvert box jacking method.
為慎重起見，擬采用管幕保護下的頂進法施工。
Meanwhile, the pipe-roof grouting and pile anchoring method have been adopted also to strengthen the bedding strata of the large span tunnel.
同時對淺埋、富水和地質順層地段分別采用管棚注漿和錨固樁加固的方法進行了處理。
In the project of cross-under the highway with pipe roof and culvert box method, the interspace between culvert box and pipe roof is limited by several factors.
管棚-箱涵法下穿越高速公路工程中，管棚與箱涵的建筑空隙受到多方面因素影響，合理的建筑空隙在保證不增加成本的條件下，為施工帶來方便。