A study on the key construction technology for the framework tunnel of Ligao Highway
The ecological journey frame tunnel of Ligao Highway adopts a prestressed reinforced concrete frame cast-in-place structure.By controlling the wall formwork support system and roof formwork support system,steel bars,prestressed tensioning,grouting,etc.,the construction quality of the frame tunnel is ensured.This complete set of technology can be used as a reference and promoted for similar projects.
tunnel engineeringecological tunnelsupport pouringconstruction techniquesquality control