A structure and pipeline for PCCP (prestressed concrete cylinder pipe) bell and spigot seam

The utility model relates to a hydraulic engineering field, concretely relates to PCCP (prestressed concrete cylinder pipe) bell and spigot seam structure and pipeline. In the implementation, at firstwith clean up in the bell and spigot seam, apply paint the SK primer in the seam with a brush, then incorporating and seam are with wide plastic sealant, the compaction makes sealing material be fullof the interior lower part space of seam to combine closely with the slotted wall, to fill epoxy putty on it to surperficial parallel and level, then in epoxy putty external coating elasticity polyurethane / polyureas coating or paste the adhesive tape, as the isolation layer, apply paint bottom high tenacity epoxy coating with a brush on the isolation layer, is epoxy coating's width than the wide 10cm of isolation layer 20cm, then lay gumming glass fiber tape, recoat on it and brush the epoxy coating of top layer high tenacity. This structure and construction side method when the moderate degree keeps PCCP (prestress