A valve type expanding head anchor rod bearing body

A technology of expanding head and valve type, which is applied in the direction of installing anchor rods, sheet pile walls, mining equipment, etc., can solve problems such as insufficient pull-out resistance, and achieve the effects of small installation resistance, prominent substantive features, and large radius

Active Publication Date: 2017-11-21
CHEM IND GEOTECHN ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The expansion head of the traditional bolt carrier is too small, resulting in insufficient pull-out resistance

Method used

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  • A valve type expanding head anchor rod bearing body
  • A valve type expanding head anchor rod bearing body
  • A valve type expanding head anchor rod bearing body

Examples

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Embodiment Construction

[0021] The substantive content of the present invention is further described below in conjunction with the examples, but the protection scope of the present invention is not limited thereby. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention.

[0022] like figure 1 and figure 2 A valve type enlarged head anchor rod bearing body shown, including the anchor rod 1, the fixed card 10, the first lifting rope 9, the second lifting rope 11 and two valve type sleeves set on the anchor rod. Expand head 2. The valve type expansion head 2 includes a circular steel pipe reinforcement body 4 and six valve arc-shaped steel plates 5. The circular steel pipe reinforcement body 4 is sheathed on the anchor ro...

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Abstract

The invention discloses a valve type expanding head anchor rod bearing body. The valve type expanding head anchor rod bearing body comprises an anchor rod, fixing clamps, first lifting and pulling ropes, second lifting and pulling ropes and at least two valve type expanding heads arranged on the anchor rod in a sleeving manner; each valve type expanding head comprises a round steel pipe reinforcement body and a plurality of valve arc-shaped steel plates; the anchor rod is sleeved with the round steel pipe reinforcement bodies in a penetrating manner; the inner side ends of the multiple valve arc-shaped steel plates are evenly hinged to the peripheries of the round steel pipe reinforcement bodies; the outer side ends of the valve arc-shaped steel plates are connected with the first lifting and pulling ropes; each first lifting and pulling rope is connected with the outer side ends of the valve arc-shaped steel plates in the valve type expanding heads at the same circumferential position; the at least two fixing clamps are evenly hoisted and arranged around the anchor rod through the second lifting and pulling ropes; and the multiple first lifting and pulling ropes opposite to one side of one fixing clamp are connected to the fixing clamp in a gathering manner. The valve type expanding head anchor rod bearing body has higher uplift bearing capacity compared with an existing bearing body.

Description

technical field [0001] The invention relates to a force-bearing structure for building construction, in particular to a valve-type expansion head anchor rod bearing body. Background technique [0002] Bolt support is a reinforcement and support method used in surface engineering such as slopes, deep geotechnical foundation pits, and underground chambers such as tunnels and stopes. The poles are made of metal parts, wood parts, polymer parts or other materials, and are driven into the pre-drilled holes in the surface rock mass or the rock mass around the chamber, using the special structure of the head, the pole body and the tail plate, or Relying on the bonding effect, the surrounding rock and the stable rock mass are combined together to produce suspension effect, combined beam effect and reinforcement effect, so as to achieve the purpose of support. The degree of combination of the bolt bearing body and the rock mass has a direct impact on the support effect. [0003] Th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D5/74E21D21/00
CPCE02D5/74E02D2600/30E21D21/0026
Inventor 程华根褚世仙齐建东程昭瑞
Owner CHEM IND GEOTECHN ENG
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