CN221400605U - Advanced hollow grouting anchor rod - Google Patents
Advanced hollow grouting anchor rod Download PDFInfo
- Publication number
- CN221400605U CN221400605U CN202323422153.9U CN202323422153U CN221400605U CN 221400605 U CN221400605 U CN 221400605U CN 202323422153 U CN202323422153 U CN 202323422153U CN 221400605 U CN221400605 U CN 221400605U
- Authority
- CN
- China
- Prior art keywords
- anchor rod
- grouting anchor
- grouting
- slip casting
- drill bit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000007569 slipcasting Methods 0.000 claims description 14
- 239000011440 grout Substances 0.000 claims description 13
- 230000007423 decrease Effects 0.000 claims description 3
- 230000008093 supporting effect Effects 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000004873 anchoring Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 230000005641 tunneling Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Piles And Underground Anchors (AREA)
Abstract
The utility model discloses an advanced hollow grouting anchor rod, a grouting anchor rod and a drill bit, wherein the drill bit is connected to the end part of the grouting anchor rod, the side part of the grouting anchor rod is provided with grouting openings communicated with the inner surface and the outer surface of the grouting anchor rod, and the grouting openings are uniformly distributed along the length direction of the grouting anchor rod. The problem of prior art is relatively poor to roof supporting effect in stock middle part is solved.
Description
Technical Field
The utility model relates to an advanced hollow grouting anchor rod, and belongs to the technical field of anchoring.
Background
For the common broken roof or soft rock roof in the colliery, need carry out slip casting anchor to the roof through slip casting stock in the current anchor support technique, but current stock can only follow stock tip and go out thick liquid, can only carry out fine anchor to the roof of stock tip, to the roof at stock middle part, thick liquid either hardly flows, or take a long time just can flow for the roof anchoring effect at stock middle part is not good. And the grouting range limited by the length of the anchor rod is limited, and especially for broken roof or soft rock roof, the roof has poor self-bearing capacity, the hollow jacking distance in the tunneling process is shorter, and the safety of users is seriously threatened, so that a supporting material with a certain advance distance is needed to be provided, the reinforcement effect of a metal framework can be formed by the advance distance in the tunneling process, and the surrounding rock stratum can be modified.
Disclosure of Invention
The utility model aims to provide an advanced hollow grouting anchor rod, which aims to solve the technical problems in the background technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
The utility model provides an advance cavity slip casting stock, slip casting stock and drill bit, the drill bit is connected at slip casting stock tip, slip casting stock lateral part is equipped with the play thick liquid mouth of intercommunication slip casting stock internal and external surface, play thick liquid mouth is along slip casting stock length direction evenly distributed.
Further, the diameter of the grout outlet gradually decreases from the end of the grouting anchor rod where the drill bit is located to the other end.
Further, the grouting anchor rod comprises more than 1 section, and each section of grouting anchor rod is connected and communicated with each other through a connecting sleeve.
The beneficial effects of the invention are as follows: in contrast to the prior art, the method has the advantages that,
1) According to the grouting anchor rod, the grout outlet is formed in the side part of the grouting anchor rod, so that grout can directly reach the top plate in the middle of the anchor rod from the grout outlet, compared with the condition that the grout flows to the top plate from a drill bit, the grouting anchor rod has the advantages that the grouting anchor rod is shorter in time and easier to flow to the top plate in the middle of the anchor rod, and therefore the anchoring effect of the top plate in the middle of the anchor rod is improved;
2) According to the grouting anchor rod, the diameter of the grout outlet is gradually reduced from the end part of the grouting anchor rod where the drill bit is positioned to the other end, so that the flow close to the grout outlet of the drill bit is improved;
3) The multi-end grouting pipe is connected through the connecting sleeve, so that the grouting length can be set at will.
Drawings
FIG. 1 is a perspective view of the present utility model;
Fig. 2 is a partial view at a in fig. 1.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Embodiment one:
Referring to fig. 1-2, an advanced hollow grouting anchor rod, a grouting anchor rod 1 and a drill bit 2, wherein the drill bit 2 is connected to the end part of the grouting anchor rod 1, grout outlets 1-1 communicated with the inner surface and the outer surface of the grouting anchor rod 1 are formed in the side part of the grouting anchor rod 1, and the grout outlets 1-1 are uniformly distributed along the length direction of the grouting anchor rod 1.
Further, the diameter of the grout outlet 1-1 gradually decreases from the end of the grouting anchor 1 where the drill bit 2 is located to the other end.
Further, the grouting anchor rod 1 comprises more than 1 section, and each section of grouting anchor rod 1 is connected and communicated with each other through a connecting sleeve 3.
The foregoing is a further detailed description of the invention in connection with the preferred embodiments, and it is not intended that the invention be limited to the specific embodiments described. It will be apparent to those skilled in the art that several simple deductions or substitutions may be made without departing from the spirit of the invention, and these should be considered to be within the scope of the invention.
Claims (3)
1. The utility model provides an advance cavity slip casting stock, slip casting stock (1) and drill bit (2), drill bit (2) connect at slip casting stock (1) tip, its characterized in that, slip casting stock (1) lateral part is equipped with grout outlet (1-1) of intercommunication slip casting stock (1) internal and external surface, grout outlet (1-1) are along slip casting stock (1) length direction evenly distributed.
2. The advanced hollow grouting bolt according to claim 1, wherein the diameter of the grout outlet (1-1) gradually decreases from the end of the grouting bolt (1) where the drill bit (2) is located to the other end.
3. The advanced hollow grouting anchor according to claim 1, wherein the grouting anchor (1) comprises more than 1 section, and each section of grouting anchor (1) is connected and communicated with each other through a connecting sleeve (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323422153.9U CN221400605U (en) | 2023-12-15 | 2023-12-15 | Advanced hollow grouting anchor rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323422153.9U CN221400605U (en) | 2023-12-15 | 2023-12-15 | Advanced hollow grouting anchor rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221400605U true CN221400605U (en) | 2024-07-23 |
Family
ID=91920335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323422153.9U Active CN221400605U (en) | 2023-12-15 | 2023-12-15 | Advanced hollow grouting anchor rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221400605U (en) |
-
2023
- 2023-12-15 CN CN202323422153.9U patent/CN221400605U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |