Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Novel assembly type hollow grouting anchor bolt and construction method thereof
The invention discloses a novel assembly type hollow grouting anchor bolt and a construction method thereof. The novel assembly type hollow grouting anchor bolt comprises a steel strand rod body, wherein one end of the steel strand rod body is connected with a connecting rod through a first connecting sleeve, and the other end of the steel strand rod body is connected with an anchoring segment through a second connecting sleeve; the steel strand rod body is inserted into holes of the first and second connecting sleeves; the anchoring segment is in threaded connection with the second connecting sleeve; the surface of the anchoring segment is provided with a semi-conical bump and a reinforcement cage constructed by longitudinal steel bars and stirrups; an inverted branch is further welded on the anchoring segment, and can be taken as a general anchor bolt or as a detachable anchor bolt. Compared with the conventional metal rod body, the novel assembly type hollow grouting anchor bolt is reasonable in structure, and is easy in construction, has high strength, high flexibility and high elasticity, and is prevented from being fractured and damaged easily in large-deformation rock soil layers such as soft rock tunnels, and is longer in service life, and can be widely applied to various types of support operations.
Novel assembly type hollow grouting anchor bolt and construction method thereof
The invention discloses a novel assembly type hollow grouting anchor bolt and a construction method thereof. The novel assembly type hollow grouting anchor bolt comprises a steel strand rod body, wherein one end of the steel strand rod body is connected with a connecting rod through a first connecting sleeve, and the other end of the steel strand rod body is connected with an anchoring segment through a second connecting sleeve; the steel strand rod body is inserted into holes of the first and second connecting sleeves; the anchoring segment is in threaded connection with the second connecting sleeve; the surface of the anchoring segment is provided with a semi-conical bump and a reinforcement cage constructed by longitudinal steel bars and stirrups; an inverted branch is further welded on the anchoring segment, and can be taken as a general anchor bolt or as a detachable anchor bolt. Compared with the conventional metal rod body, the novel assembly type hollow grouting anchor bolt is reasonable in structure, and is easy in construction, has high strength, high flexibility and high elasticity, and is prevented from being fractured and damaged easily in large-deformation rock soil layers such as soft rock tunnels, and is longer in service life, and can be widely applied to various types of support operations.
Novel assembly type hollow grouting anchor bolt and construction method thereof
ZHENG ZHITAO (Autor:in) / XU YING (Autor:in) / SHAO BINBIN (Autor:in)
03.06.2015
Patent
Elektronische Ressource
Englisch
Grouting method and press-in type hollow grouting anchor pipe
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