pipe-roof method

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。
Meanwhile, the pipe-roof grouting and pile anchoring method have been adopted also to strengthen the bedding strata of the large span tunnel.
同时对浅埋、富水和地质顺层地段分别采用管棚注浆和锚固桩加固的方法进行了处理。
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，管棚与箱涵的建筑空隙受到多方面因素影响，合理的建筑空隙在保证不增加成本的条件下，为施工带来方便。