摘要：既有线框架桥顶进施工前，要根据施工现场实际情况制定切实可行的施工方法。

Abstract: the framework of existing in jacking bridge before construction, according to the actual situation of construction site make feasible construction method.

youdao

摘要：既有线框架桥顶进施工前，要根据施工现场实际情况制定切实可行的施工方法。

Abstract: the framework of existing in jacking bridge before construction, according to the actual situation of construction site make feasible construction method.

youdao