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Valve type expanding head anchor rod bearing body

An enlarged head and valve type technology, applied in the installation of bolts, sheet pile walls, mining equipment, etc., can solve problems such as insufficient pull-out resistance, achieve low installation resistance, improve pull-out bearing capacity, and highlight substantive features Effect

Active Publication Date: 2016-08-10
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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  • Valve type expanding head anchor rod bearing body
  • Valve type expanding head anchor rod bearing body
  • 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 thereto. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can 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 expansion head bolt bearing body is shown, including a bolt 1, a fixed card 10, a first pull rope 9, a second pull rope 11 and two valve-shaped Expand head 2. The valve-type expanding head 2 includes a circular steel pipe reinforcement 4 and six valve arc-shaped steel plates 5, the circular steel pipe reinforcement 4 is sheathed on the anchor rod 1, and the inner ends of the six valve arc-shaped steel plates ...

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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 expanding head bolt bearing body. Background technique [0002] Bolt support is a reinforcement and support method used in surface engineering such as slopes and deep foundation pits, as well as underground chambers such as tunnels and stopes. Use metal parts, wood parts, polymer parts or other materials to make pole columns, drive them into pre-drilled holes in the surface rock mass or the rock mass around the chamber, and use the special structure of the head, pole body and tail supporting plate, or Depending on the bonding effect, the surrounding rock and the stable rock mass are combined to produce suspension effects, composite beam effects, and reinforcement effects to achieve the purpose of support. The degree of combination between the bolt bearing body and the rock mass has a direct impact on the support effect. [0003] The expansion h...

Claims

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Application Information

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Patent Type & Authority Applications(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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