CN206530356U - A kind of Novel hollow grouted anchor bar - Google Patents
A kind of Novel hollow grouted anchor bar Download PDFInfo
- Publication number
- CN206530356U CN206530356U CN201720246706.5U CN201720246706U CN206530356U CN 206530356 U CN206530356 U CN 206530356U CN 201720246706 U CN201720246706 U CN 201720246706U CN 206530356 U CN206530356 U CN 206530356U
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- China
- Prior art keywords
- hollow
- sleeve
- rod
- anchor
- slip casting
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Abstract
The utility model discloses a kind of Novel hollow grouted anchor bar, including the hollow slip casting body of rod, the first sleeve, hollow sliding block, second sleeve, stop grouting plug, backing plate, nut, the hollow slip casting body of rod is provided with aperture in anchor head and body of rod surrounding, first sleeve is provided with four mutually thin seams and four vees in 90 ° at one end, there are aperture and hangnail alternate intervals in sleeve surrounding simultaneously, the hollow sliding block inner surface is smooth, outside face is into certain radian, and the second sleeve is identical with the first bush structure.The utility model hollow grouting anchor has easy to use, can provide initial anchor force immediately, later stage anchor force is big, and can stablize placed in the middle, can fully be contacted with slurries, prevent the advantage of corrosion of anchor bolt, this point is especially apparent when anchor pole is long.The utility model is particularly suitable for use in soft soil slope, and joint fissure is compared with development and the supporting of the weak surrounding rock of rich groundwater, while being also applied for the supporting of stabilizing surrounding rock.
Description
Technical field
The utility model is related to the support issues in tunnel and engineering technology, specially a kind of Novel hollow grouted anchor bar.
Background technology
From over 1912, since German Xie Liezi ore deposits use suspension roof support underworkings at first, suspension roof support is with its structure
Simply, easy construction, cost it is low and to engineering adaptability it is strong the features such as, be widely used in civil engineering.Such as China
Century engineering -- used in Three Gorges Projects, its dam construction a large amount of anchor poles (rope) safeguard excavate side slope, palisades.
According to the anchorage style of anchor pole, anchor pole can be divided into mechanical anchoring and the class of bond-anchorage two.Wherein mechanical anchoring
Shortcoming be that anchored end in drilling is shorter, be easily caused formation damage and Anchor Agent in the region of high stress and loosen, anchor force is general
It is relatively low, but it has installation rapid, the advantages of can reaching bearing capacity immediately.Hollow grouting anchor as bond-anchorage type anchor pole,
Full length fastening can be carried out, is ideal roof bolting form, but its shortcoming also can not be ignored, such as：It can not provide immediately
Bearing capacity, construction technical requirement is high, and the body of rod is insufficient with slurry liquid contacts, is particularly filled when in the longer insufficient strength of the body of rod, the body of rod
After full slurries, because the body of rod and slurries deadweight cause the body of rod sagging, the part body of rod is just had close to hole wall, prevents slurries from abundant
The body of rod is wrapped up, causes the body of rod to meet aqueous corrosion, shear resistance declines, and causes the body of rod to be cut.
Utility model content
The utility model purpose is to solve the problem of above-mentioned hollow grouting anchor is present, and then provides a kind of Novel hollow
Grouted anchor bar.
The utility model realized by following scheme, a kind of Novel hollow grouted anchor bar, it include the hollow slip casting body of rod,
First sleeve, hollow sliding block, second sleeve, stop grouting plug, backing plate, nut composition, can be successively by the first sleeve, hollow when using
Sliding block, second sleeve are enclosed on outside the hollow slip casting body of rod, are put into after the completion of drilling in hole, then put stop grouting plug, backing plate, nut,
Pretightning force is put on, is then connected the body of rod with Grouting Pipe, slip casting is completed.
The hollow slip casting body of rod is provided with aperture in anchor head and body of rod surrounding, and body of rod surrounding aperture along the body of rod radially
Mutual distribution in 90 °, is axially equally spaced along the body of rod.
First sleeve is provided with four mutual thin seams in 90 ° at one end, and the length carefully stitched can be adjusted according to the size of drilling,
Meanwhile, four vees cut out are so that sleeve one end forms four triangle spines, it is easier to go deep into the soil body or rock mass,
Well by centre of the anchor pole as drilling.
The first set barrel dliameter is axially equally spaced to four apertures mutually in 90 ° are also dispersed with along sleeve, axial hole
Away from identical with slip casting body of rod pitch-row, so when application pretightning force, inside and outside aperture exoergic is overlapped, and is axially gone back on sleeve
There are hangnail and aperture alternate intervals.
The hollow sliding block inner surface is smooth, and outside face, can be on the slip casting body of rod slidably into certain radian.
The second sleeve is identical with the first bush structure.
Compared with prior art, the utility model has advantages below：
Mechanical anchoring is had the advantage that and is combined with hollow grouting anchor by the utility model so that the utility model
Hollow grouting anchor has easy to use, can provide initial anchor force immediately, later stage anchor force is big, can save anchor pole consumption,
With good economic benefit.And anchor pole can stablize placed in the middle, can fully be contacted with slurries, completely cut off groundwater erosion, prevent anchor
The advantage of puccinia graminis erosion, this point is especially apparent when anchor pole is long.The utility model is particularly suitable for use in soft soil slope, and joint is split
Gap is compared with development and the supporting of the weak surrounding rock of rich groundwater, while being also applied for the supporting of stabilizing surrounding rock.
Brief description of the drawings
Fig. 1 is the utility model hollow grouting anchor structural representation
Fig. 2 is the utility model and Rock And Soil interaction schematic diagram
Wherein：1- hollow bolt bodies, the sleeves of 2- first, the hollow sliding blocks of 3-, 4- second sleeves, 5- stop grouting plugs, 6- backing plates, 7-
Aperture in nut, 8-, the outer apertures of 9-, 10- hangnails, 11- is carefully stitched, 12- spines.
Embodiment
Below in conjunction with accompanying drawing, technical solutions of the utility model are described further by specific example.
As shown in figure 1, hollow grouting anchor described in the utility model include the hollow slip casting body of rod 1, it is the first sleeve 2, hollow
Sliding block 3, second sleeve 4, stop grouting plug 5, backing plate 6, nut 7, the hollow slip casting body of rod are provided with aperture in anchor head and body of rod surrounding
8, and body of rod surrounding aperture along the body of rod radially mutually distribution in 90 °, be axially equally spaced along the body of rod.First sleeve 2
Four mutually thin seams 11 in 90 ° are provided with one end, and the length carefully stitched can be adjusted according to the size of drilling, meanwhile, four three cut out
Angular breach causes sleeve one end to form four triangle spines 12, it is easier to go deep into the soil body or rock mass, well by anchor pole extremely
In the centre of drilling.First sleeve 2 is radially also dispersed with four apertures 9 mutually in 90 °, divides along sleeve is axially equidistant
Cloth, axial hole is away from identical with slip casting body of rod pitch-row, so when application pretightning force, and inside and outside aperture can be overlapped, and on sleeve
Axially there are hangnail 10 and the alternate intervals of aperture 9.The inner surface of hollow sliding block 3 is smooth, and outside face, can into certain radian
Slidably second sleeve 4 described in makes identical with the first sleeve structure 2 on the slip casting body of rod.
After the completion of drilling, borehole cleaning work, the first sleeve 2, hollow sliding block 3, second sleeve 4 are enclosed on hollow slip casting successively
The outside of the body of rod 1, is put into drilling, makes body of rod end as near as possible apart from bottom hole, then air in evacuation aperture puts and only starch successively
Plug 5, backing plate 6, nut 7, tightening nut application pretightning force makes spine be pierced into Rock And Soil, while inside and outside aperture is overlapped, it is slurry stream
Dynamic to provide passage, then the body of rod is connected progress slip casting, when grouting valve gage pressure value reaches design requirement, side with Grouting Pipe
Slip casting can be stopped, it is so far whole to implement to terminate.
Although the utility model has done detailed description to specific implementation, the technical scheme described by the utility model is simultaneously
Be not limited to this, it is any be familiar with the staff of this skill can be carried out on the basis of this scheme is understood it is various conversion and repair
Change, but all within protection domain of the present utility model.
Claims (6)
1. a kind of Novel hollow grouted anchor bar, including the hollow slip casting body of rod, the first sleeve, hollow sliding block, only second sleeve, slurry
Plug, backing plate, nut, it is characterised in that：First sleeve, hollow sliding block, second sleeve are sequentially sleeved in outside the hollow slip casting body of rod
It is put into after the completion of face, drilling in hole, then puts stop grouting plug, backing plate, nut, is then tightened.
2. hollow grouting anchor according to claim 1, it is characterised in that：The hollow slip casting body of rod is in anchor head and the body of rod
Surrounding is provided with aperture, and body of rod surrounding aperture along the mutually distribution in 90 ° of body of rod radial distribution, axially equidistantly divide along the body of rod
Cloth.
3. hollow grouting anchor according to claim 1, it is characterised in that：First sleeve is provided with four mutually at one end
Thin seam in 90 °, the length carefully stitched can be adjusted according to the size of drilling, meanwhile, four vees cut out are so that sleeve one
End forms four triangle spines, it is easier to go deep into the soil body or rock mass, well by centre of the anchor pole as drilling.
4. hollow grouting anchor according to claim 3, it is characterised in that：The first set barrel dliameter is mutually to being also dispersed with
90 ° of four apertures, are axially equally spaced along sleeve, and axial hole is away from identical with slip casting body of rod pitch-row, so when application pretension
Power, inside and outside aperture could be overlapped, and axially also have on sleeve hangnail and aperture alternate intervals.
5. hollow grouting anchor according to claim 1, it is characterised in that：The hollow sliding block inner surface is smooth, outside
Face, can be on the slip casting body of rod slidably into certain radian.
6. hollow grouting anchor according to claim 1, it is characterised in that：The second sleeve and the first bush structure are complete
It is exactly the same.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720246706.5U CN206530356U (en) | 2017-03-14 | 2017-03-14 | A kind of Novel hollow grouted anchor bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720246706.5U CN206530356U (en) | 2017-03-14 | 2017-03-14 | A kind of Novel hollow grouted anchor bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206530356U true CN206530356U (en) | 2017-09-29 |
Family
ID=59914843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720246706.5U Expired - Fee Related CN206530356U (en) | 2017-03-14 | 2017-03-14 | A kind of Novel hollow grouted anchor bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206530356U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109057840A (en) * | 2018-08-20 | 2018-12-21 | 中钢集团马鞍山矿山研究院有限公司 | Adaptive grouting and reinforcing anchor pole and its anchoring construction method under a kind of high stress |
| CN109083668A (en) * | 2018-08-20 | 2018-12-25 | 中钢集团马鞍山矿山研究院有限公司 | A kind of grouting and reinforcing anchor pole suitable for high stress breaking surrounding rock supporting |
| CN109972614A (en) * | 2019-04-28 | 2019-07-05 | 辽宁工程技术大学 | Sleeve extruding formula expands aerofoil profile anchor pole |
| CN111734462A (en) * | 2020-07-31 | 2020-10-02 | 魏群 | Anchor grouting structure |
-
2017
- 2017-03-14 CN CN201720246706.5U patent/CN206530356U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109057840A (en) * | 2018-08-20 | 2018-12-21 | 中钢集团马鞍山矿山研究院有限公司 | Adaptive grouting and reinforcing anchor pole and its anchoring construction method under a kind of high stress |
| CN109083668A (en) * | 2018-08-20 | 2018-12-25 | 中钢集团马鞍山矿山研究院有限公司 | A kind of grouting and reinforcing anchor pole suitable for high stress breaking surrounding rock supporting |
| CN109057840B (en) * | 2018-08-20 | 2020-03-31 | 中钢集团马鞍山矿山研究院有限公司 | Self-adaptive grouting reinforcement anchor rod under high stress and anchoring construction method thereof |
| CN109083668B (en) * | 2018-08-20 | 2020-05-19 | 中钢集团马鞍山矿山研究院有限公司 | Be suitable for slip casting reinforcing stock of high stress broken country rock support usefulness |
| CN109972614A (en) * | 2019-04-28 | 2019-07-05 | 辽宁工程技术大学 | Sleeve extruding formula expands aerofoil profile anchor pole |
| CN111734462A (en) * | 2020-07-31 | 2020-10-02 | 魏群 | Anchor grouting structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170929 Termination date: 20180314 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |