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Wedge type inner anchor head

An inner anchor head and wedge type technology, which is applied in construction, sheet pile wall, infrastructure engineering and other directions, can solve the problems of aging resistance and single anchoring force, and achieves reduced drilling depth, good durability, and guaranteed The effect of anchoring force

Active Publication Date: 2015-05-06
WUDA JUCHENG STRUCTURE CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the problems of single anchoring force and poor aging resistance in the prior art, and provide a safe and reliable wedge-type inner anchor head that utilizes the mechanical engagement force at the bottom of the hole for anchoring.

Method used

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Embodiment 1

[0017] See figure 1 , figure 2 , A wedge-type inner anchor head, the inner anchor head includes an anchor rod 1, a plurality of wedges arranged around the outer wall 11 of the anchor rod 1, a wedge seat 3 sleeved outside the anchor rod 1, so The side of the bottom of the wedge block 2 near the outer wall 11 is hinged with the anchor rod 1. The wedge block seat 3 is located below the wedge block 2, and its top surface includes the No. 1 inclined plane 31, the horizontal plane 32, and the No. 2 inclined plane 33 connected in sequence. , And the first slope 31 and the second slope 33 are symmetrically arranged on both sides of the horizontal plane 32, the angle 4 formed by the first slope 31, the second slope 33 and the axis of the anchor rod 1 is an acute angle, and the anchor rod 1 passes through The horizontal plane 32 passes through the wedge seat 3 and extends to the outside of the wedge seat 3.

[0018] When assembling, first drill a straight hole in the rock with a drilling...

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Abstract

The invention relates to a wedge type inner anchor head, which comprises an anchor rod, multiple wedge blocks arranged surrounding the circumference of the outer wall of the anchor rod, and wedge seats sleeving the anchor rod, wherein one side, close to the outer wall, on the bottom part of each wedge block is hinged to the anchor rod; the wedge seats are located below the wedge blocks; the top surface of each wedge seat comprises a No.1 inclined plane, a horizontal plane and a No.2 inclined plane which are connected sequentially; the No.1 inclined plane and the No.2 inclined plane of each wedge seat are symmetrically arranged on two sides of the corresponding horizontal plane; included angles respectively formed between each No.1 inclined plane and the axis of the anchor rod as well as between each No.2 inclined plane and the axis of the anchor rod are acute angles; the anchor rod penetrates through the wedge seats through the horizontal planes so as to extend to the outer parts of the wedge seats. The wedge type inner anchor head is not only safe and reliable, and good in durability, but also beneficial to ensuring the anchoring force of the inner anchor head.

Description

Technical field [0001] The invention relates to the field of rock and soil anchoring, in particular to a wedge-type inner anchor head, which is particularly suitable for providing mechanical anchoring force on the basis of the original chemical grouting anchoring force. Background technique [0002] The rapid development of rock-soil anchoring is closely related to the progress of rock-soil anchoring technology. In recent years, China's rock-soil anchoring technology has been rapidly developed, especially in civil building basement anti-floating projects, but the traditional conventional The anchoring method of the anchor rod is to rely on the shear strength and bonding force of the grouting material to provide the anchoring force. Due to the aging problem of the grouting material, in order to ensure that the grouting body of the anchoring section has sufficient anchoring force, it is often necessary to anchor the anchor rod. Into a greater depth in rock or concrete. Summary of ...

Claims

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Application Information

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IPC IPC(8): E02D5/74
CPCE02D5/74
Inventor 周剑波陈幼康高作平陈明祥张畅
Owner WUDA JUCHENG STRUCTURE CO LTD
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