Abrégé

Provided is a full-assembly pressure-bearing type variable-diameter steel cage expansion head anchor rod pile system, comprising a variable-diameter steel cage, a steel bar connector, an anchor rod piece, and a limiter which is a limiting nut, the limiting nut can be an open or closed structure, and the like, the variable-diameter steel cage is limited on the anchor rod piece (defined position) by the limiting nut and a bottom plate anchor nut; the anchor rod piece uses finish rolling or common threaded steel bars, the steel bar connector is used for the length connection of the steel bar end portions of the anchor rod piece; the top of the anchor rod piece and the bottom plate are anchored, and the bottom of the anchor rod piece and the expansion head steel cage, namely the variable-diameter steel cage, are anchored; the variable-diameter steel cage is provided with a restraining and releasing device, the concrete or cement mortar crystalline portion is combined with the expansion head variable-diameter steel cage and an axial rod to form the variable-diameter steel cage expansion head anchor rod pile system; and the variable-diameter steel cage expansion head anchor rod pile framework system is fully assembled.

Classes IPC  ?

• E02D 5/74 - Moyens d'ancrage d'éléments de structure ou de rideaux de palplanches
• E02D 5/76 - Ancrages des rideaux de palplanches ou de sections de ces rideaux
• E02D 31/12 - Dispositions de protection pour les fondations ou ouvrages réalisés par des techniques de fondation; Mesures dans le cadre des techniques de fondation pour protéger le sol ou l'eau du sous-sol, p.ex. prévention ou neutralisation de la pollution par le pétrole contre la poussée du terrain ou la pression hydraulique contre la poussée hydraulique vers le haut