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Full-anchor grouting anchor rod and anchoring method thereof

A technology of anchoring and grouting, which is applied in the installation of bolts, earthwork drilling, mining equipment, etc., can solve the problems of low anchoring reliability, poor support effect, cumbersome process, etc., so as to improve support efficiency and grouting The effect of fast speed and improving grouting efficiency

Pending Publication Date: 2021-02-12
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to improve the overall strength and anchoring strength of the anchor, improve the quality of grouting, and reduce the production cost of the grouting anchor, the present invention provides a full-anchor grouting anchor and its anchoring method to solve the problems of low anchoring reliability, support Poor maintenance effect, cumbersome process and other problems

Method used

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  • Full-anchor grouting anchor rod and anchoring method thereof
  • Full-anchor grouting anchor rod and anchoring method thereof
  • Full-anchor grouting anchor rod and anchoring method thereof

Examples

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Embodiment 1

[0035] Embodiment 1: as Figure 1-6 As shown, a full-anchor grouting anchor rod includes a rod body 19, a limit block 2, a steel pipe 16, an internally threaded rod 17, a tray 8, a gasket 9, a C-shaped washer 10, an L-shaped grouting pipe 25, and a large anchor Tool 13, small anchor 12;

[0036] Two stoppers 2 are symmetrically fixed on the left and right side walls of the upper end of the rod body 19, and a through hole is provided on the upper end side wall of the rod body 19, and an inverted nail 1 is installed in the gap in the through hole. The part is higher than its part outside the rod body 19. The rod body 19 is provided with thread 18, and the internally threaded rod 17 is screwed into the inside of the rod body 19 through the thread 18. The top of the internally threaded rod 17 is a convex body 20, and the rod body 19 is covered with a hollow Steel pipe 16, the top of steel pipe 16 just pushes on the limit block 2 when installing, and the entrance of drilling is pr...

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Abstract

The invention relates to a full-anchor grouting anchor rod and an anchoring method thereof, and belongs to the technical field of anchor rod supporting. The full-anchor grouting anchor rod specifically comprises an anchoring section, a grouting section and a rod body. Two limiting blocks are arranged on the rod body, and the anchoring section and the grouting section are bounded by the limiting blocks. The anchoring section is used for solidifying the rod body in a drill hole, and the grouting section is used for grouting the drill hole. An inverted nail is arranged on the rod body, an inner threaded rod is arranged in the rod body, and a steel pipe is arranged outside the rod body. When the full-anchor grouting anchor rod is used, the anchoring of an anchoring agent is completed firstly,then anchorage device pre-tightening is completed, and finally grouting is conducted. According to the full-anchor grouting anchor rod and the anchoring method thereof, a common solid anchor rod and the grouting function are combined together, and full-anchor grouting is achieved through the connection of the anchoring section and the grouting section; and roadway surrounding rock can be activelysupported in time, the stress state of the roadway surrounding rock is improved, the bearing capacity of the surrounding rock is fully exerted, and the stability of the roadway surrounding rock in a high-stress environment is ensured.

Description

technical field [0001] The invention relates to a full-anchor grouting bolt and an anchoring method thereof, belonging to the technical field of bolt support. Background technique [0002] At present, as the depth of resource mining increases, the stress on the underground roadway also increases, which will cause the stress in some parts of the roadway to increase, and eventually lead to deformation and failure of the roadway. As an active support method, bolt support is an effective measure to restrain deformation of rock mass after excavation and reinforce unstable rock mass, and has been widely used in roadway support. Bolt support is to achieve the purpose of improving the stress state of the surrounding rock, strengthening the surrounding rock and maintaining the stability of the roadway through the bolt anchored into the interior of the rock mass. [0003] Due to the increasingly complex underground mining conditions, coupled with the disturbance of mining activities ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D21/00E21D20/00E21D20/02
CPCE21D21/0026E21D21/0093E21D20/00E21D20/025
Inventor 李克钢刘博秦庆词岳睿李博文李明亮刘洋
Owner KUNMING UNIV OF SCI & TECH
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