Geogrid Connecting Fasteners and Their Uses

Abstract

The invention belongs to the technical field of geotechnical building components, and relates to a geogrid connecting fastener and application thereof. The geogrid connecting fastener comprises a fastener head, a folding portion and a fore shaft. The fastener head and the fore shaft are connected through the folding portion. The fastener head comprises a conical table and a cylindrical table. The diameter D1 of the upper end face of the conical table is smaller than the diameter D2 of the lower end face of the conical table. The lower end face of the conical table is connected with the cylindrical table. The diameter D2 of the lower end face of the conical table is larger than the diameter D3 of the cylindrical table. A cross-shaped groove is formed in the conical table and extends downwards to the cylindrical table. The depth of the cross-shaped groove is larger than the height of the conical table. One or more opening holes are formed in the fore shaft. The diameter D4 of the opening holes is larger than the difference between the diameter D2 of the lower end of the conical table and the width S of the cross-shaped groove. The diameter D4 of the opening holes is smaller than the diameter D2 of the lower end face of the conical table. The geogrid connecting fastener is convenient and rapid to construct and high in compressive strength and is locked and difficultly disengaged after being fastened.

Description

technical field [0001] The invention belongs to the technical field of geotechnical building components, and in particular relates to a geogrid connection fastener for geogrid connection and its application. Background technique [0002] At present, in construction, geogrid gabions are generally connected by rope binding, and its connection force, long-term performance, binding efficiency, and ease of operation are limited. [0003] Chinese patent 03260108.5 discloses a geogrid connection buckle, which consists of a plurality of ribs to form a grid structure. Connectors are installed at both ends, one end is a groove structure, and the other end is a boss structure. The connectors are combined with each other, the boss is clamped in the groove, and the groove and the boss are arranged at both ends of the grid of the geogrid. After fastening, the compressive strength is low, and the long-term stability and firmness are poor. [0004] Chinese patent 200520010462.8 discloses a...

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Problems solved by technology

[0002] At present, in the construction, the geogrid gabion is generally connected by rope binding, and its connection force, long-term performance, binding efficiency, and operation convenience are limited.

[0003] Chinese patent 03260108.5 discloses a geogrid connection buckle, which consists of a plurality of ribs to form a grid structure. Connectors are installed at both ends, one end is a groove structure, and the other end is a boss structure. The connectors are combined with each other, the bosses are clamped in the grooves, and the grooves and bosses are arranged at both ends of the grid of the geogrid. After fastening, the compressive strength is low, and the long-term stability and firmness are poor.

[0004] Chinese patent 200520010462.8 discloses a convenient combined geogrid, including ribs arranged vertically and horizontally to form a grid, the ribs are connected by connecting members, the connecting members are composed of a fixed cover plate and a fixed plate, and a lock is provided on the fixed plate For the tight barb column, the fixed cover plate is provided with a locking hole corresponding to the locking barb column on the fixed plate, which is inconvenient to use, and can only be pre-assembled with ribs, and cannot be connected to the formed geogrid, geotechnical The overall compressive strength of the grille project is low

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