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An extended wing anchor device

A bolt and wing-type technology, which is applied in construction, sheet pile walls, foundation structure engineering, etc., can solve the problems of insufficient side resistance, increase the pullout capacity of the bolt, and failure, so as to increase the pullout capacity and improve the support effect, strong binding effect

Active Publication Date: 2017-12-08
UNIV OF SCI & TECH BEIJING +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is the failure of the anchor rod due to insufficient side resistance when reinforcing the middle and low strength rock and soil layers, so that the anchor rod can be more firmly combined with the rock and soil mass of the hole wall and the grouting body in the hole to increase the The purpose of bolt pullout resistance is to provide a kind of extended wing type bolt device

Method used

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Embodiment Construction

[0021] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0022] The invention provides an extended wing type bolt device.

[0023] like figure 1 and figure 2 As shown, the device includes a tightening cap 1, a connecting sleeve 2, a stand 3, an expansion wing 5, a wing slider 6, a spring hook 11 and a wing retracting spring 12, the rod body 7 penetrates the connecting sleeve 2, and the connecting sleeve The cylinder 2 passes through the platform 3 and is tightened by the tightening cap 1, wherein the outer diameter of the connecting sleeve 2 is smaller than the inner diameter of the hole of the platform 3, so as to ensure that the connecting sleeve 2 penetrating into the rod body 7 can rotate freely in the hole of the platform 3 and expand The wing 5 is connected with the platform 3 by bolts 4, the wing sli...

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Abstract

The invention provides an extension swing type anchor rod device and belongs to the field of geotechnical engineering anchoring. The device comprises a banding cap, a connecting sleeve, a stand, bolts, extension wings, a wing supporting sliding block, a rod body, spring grabbers and a wing collecting spring. A thread engaged with the connecting sleeve is arranged on the inner wall of the banding cap, the connecting sleeve and the banding cap are in thread fit, and the stand is axially constrained on the rod body. Sliding grooves allowing the wing supporting sliding block to run are formed in the inner sides of the extension swings, a thread engaged with the rod body is arranged on the inner wall of the swing supporting sliding block, and penetrating holes are formed in the extension wings. One or more extension swing type anchor rod devices are installed, the extension wings are opened to improve side resistance among the anchor rods, grout in the holes and a rock-soil body, and therefore the supporting effect of the anchor rods on the low and medium-high strength rock-soil body is improved.

Description

technical field [0001] The invention relates to the field of geotechnical engineering anchoring, in particular to an extended-wing type anchoring device. Background technique [0002] Anchor bolts are widely used in construction, highways, railways and other projects due to their advantages of simple construction, mature technology, small footprint, and large tensile force. According to the anchoring method of the anchor rod, it can be divided into two types: mechanical anchoring type and bonded anchoring type. The anchoring device or the anchor rod body is in contact with the hole wall, and the anchor rod that uses frictional force to play an anchoring role belongs to the mechanical anchoring type anchor rod; the anchor rod body part or the entire length uses resin, mortar, rapid hardening cement and other cementing materials to seal the anchor rod body The anchor rod that is bonded and fixed with the hole wall and realizes the anchoring effect through the bonding force be...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D5/74
CPCE02D5/74E02D5/803
Inventor 吴顺川刘刚宋伟超白浩均赵坤高艳华
Owner UNIV OF SCI & TECH BEIJING
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