CN206376889U - A kind of new scale formula grouted anchor bar - Google Patents
A kind of new scale formula grouted anchor bar Download PDFInfo
- Publication number
- CN206376889U CN206376889U CN201621375099.4U CN201621375099U CN206376889U CN 206376889 U CN206376889 U CN 206376889U CN 201621375099 U CN201621375099 U CN 201621375099U CN 206376889 U CN206376889 U CN 206376889U
- Authority
- CN
- China
- Prior art keywords
- rod
- supporting plate
- connected firmly
- anchor bar
- new scale
- 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.)
- Expired - Fee Related
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Abstract
The utility model patent is a kind of new scale formula grouted anchor bar, is made up of the squamous body of rod, supporting plate, stop grouting plug, high-strength nut.Rod end does tapered, in order to install, and body of rod both sides are arranged to fish scale-shaped opening.After anchor pole is pressed into drilling, squamous opening and the borehole wall jam-packed at body of rod two ends produce the radial compressive stress and axial friction along steel pipe total length, compression are produced in country rock, prevent surrouding rock deformation.After slip casting, slurries are fully combined with the fish scale-shaped body of rod, further increase the anchor force of anchor pole, meanwhile, the fish scale-shaped body of rod enhances the anti-shear ability of anchor pole surrounding concrete.In addition, the high-strength nut of bar tail is connected firmly by screw thread with the body of rod, supporting plate is squeezed, supporting plate is connected firmly and reasonable stress.The device can effectively improve the construction quality of roadway support, the problem of reducing wall rock destabilization.
Description
Technical field
The utility model is related to the novel slurry filling anchor pole that a kind of scale type body of rod is combined with end anchorage, and the device can have
Effect improves the construction quality of roadway support, the problem of failing to reach design requirement because of anti-shear ability deficiency is reduced, so that pole
Big improves surrounding rock stability.
Background technology
Suspension roof support is an important support technology of well lane engineering, and China's suspension roof support development is rapider, still
As colliery enters after deep mining, engineering rock mass is from the linear mechanical behaviors of rocks of superficial part to the non-linear rock mechanics in deep
Behaviorism theory, occurs in that substantial amounts of supporting complicated roadway.It is but very low that this allows for suspension roof support rate, is still applied using a large amount of installations
Work inconvenience, the metallic support that supporting effect is undesirable and maintenance cost is higher and other shield forms, are unfavorable for roadway maintenance shape
The improvement of condition and safety condition, constrains the development of mine high and stable yields and the raising of single face output and efficiency, so that significantly
Govern economic benefit and the safety in production of coal enterprise.
The content of the invention
The utility model is related to the novel slurry filling anchor pole that a kind of new scale formula body of rod is combined with end anchorage, and the device can be with
The effective construction quality for improving roadway support, reduces and fails to reach design requirement because anti-shear ability is not enough, cause country rock
The problem of unstability.
A kind of new scale formula grouted anchor bar, is made up of the fish scale-shaped body of rod, supporting plate, stop grouting plug, high-strength nut.The head of the body of rod
Do tapered, both sides are set as fish scale-shaped.Stop grouting plug is provided with supporting plate, the high-strength nut of bar tail is connected jail with the body of rod by screw thread
Gu, supporting plate is extruded, supporting plate is connected firmly and reasonable stress.
As an improvement, the body of rod uses the body of rod of the common internal-injection type Zhujiang River anchor poles of Ф 22mm, end is done tapered both sides and set
Into fish scale-shaped opening.
As an improvement, supporting plate inside sets stop grouting plug by the steel plate that lower surface is thickness 2mm.
As an improvement, the high-strength nut of bar tail is connected firmly by screw thread with the body of rod, supporting plate is extruded, supporting plate is connected firmly
And reasonable stress.
The beneficial effects of the invention are as follows：The design structure is simple, easy for installation, improves the efficiency of construction of roadway support.When
Anchor pole is pressed into after drilling, squamous opening and the borehole wall jam-packed at body of rod two ends, produces the radial compressive stress along steel pipe total length
And axial friction, compression is produced in country rock, surrouding rock deformation is prevented.After slip casting, slurries are fully combined with the squamous body of rod,
The anchor force of anchor pole is further increased, meanwhile, the squamous body of rod enhances the anti-shear ability of anchor pole surrounding concrete.In addition,
The high-strength nut of bar tail is connected firmly by screw thread with the body of rod, is squeezed supporting plate, supporting plate is connected firmly and reasonable stress.The device can
Effectively to improve the construction quality of roadway support, the problem of reducing wall rock destabilization.
Brief description of the drawings
A kind of new scale formula grouted anchor bar design drawings of Fig. 1.
A kind of new scale formula grouted anchor bar body of rod enlarged drawings of Fig. 2.
Fig. 3 Supporting plate for anchor plans.
Reference：（1）The squamous body of rod（2）Squamous opening（3）Pallet（4）High-strength nut（5）Stop grouting plug.
Embodiment
Embodiment of the present utility model is described in further detail with reference to the accompanying drawings and examples.Following reality
Example is used for illustrating the utility model, but is not limited to scope of the present utility model.
As shown in figure 1, the visual prestress pulling resistant resin anchor that the utility model embodiment is provided, in use, working as anchor pole
It is pressed into after drilling, squamous opening and the borehole wall jam-packed at body of rod two ends produce the radial compressive stress and axle along steel pipe total length
To frictional force, compression is produced in country rock, surrouding rock deformation is prevented.After slip casting, slurries are fully combined with the fish scale-shaped body of rod, are entered
One step improves the anchor force of anchor pole, meanwhile, the fish scale-shaped body of rod enhances the anti-shear ability of anchor pole surrounding concrete.In addition,
The high-strength nut of bar tail is connected firmly by screw thread with the body of rod, is squeezed supporting plate, supporting plate is connected firmly and reasonable stress.The device can
Effectively to improve the construction quality of roadway support, the problem of reducing wall rock destabilization.
As an improvement, the body of rod uses the body of rod of the common internal-injection type Zhujiang River anchor poles of Ф 22mm, end is done tapered both sides and set
Into fish scale-shaped opening.
As an improvement, supporting plate inside sets stop grouting plug by the steel plate that lower surface is thickness 2mm.
As an improvement, the high-strength nut of bar tail is connected firmly by screw thread with the body of rod, supporting plate is extruded, supporting plate is connected firmly
And reasonable stress.
The device can effectively improve the construction quality of roadway support, the problem of reducing wall rock destabilization.
Claims (5)
1. a kind of new scale formula grouted anchor bar, by the squamous body of rod（1）, squama shape structure（2）, supporting plate（3）, high-strength nut（4）, only starch
Plug（5）Composition, the squamous body of rod（1）Head do tapered, both sides are set as squama shape structure（2）, supporting plate（3）It is interior to be provided with stop grouting plug
（5）, the high-strength nut of bar tail（4）It is connected firmly by screw thread with the body of rod, extrudes supporting plate（3）, supporting plate is connected firmly and stress
Rationally.
2. a kind of new scale formula grouted anchor bar according to claim 1, it is characterized in that the body of rod（1）It is commonly interior using Ф 22mm
The body of rod of note formula Zhujiang River anchor pole, end is done tapered.
3. a kind of new scale formula grouted anchor bar according to claim 1, it is characterized in that the body of rod（1）Both sides are arranged to fish scale-shaped
Opening.
4. a kind of new scale formula grouted anchor bar according to claim 1, it is characterized in that：Supporting plate（3）It is thickness by lower surface
2mm steel plate, inside sets stop grouting plug（5）.
5. a kind of new scale formula grouted anchor bar according to claim 1, it is characterized in that：The high-strength nut of bar tail（4）Pass through
Screw thread is connected firmly with the body of rod, extrudes supporting plate（3）, supporting plate is connected firmly and reasonable stress.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621375099.4U CN206376889U (en) | 2016-12-15 | 2016-12-15 | A kind of new scale formula grouted anchor bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621375099.4U CN206376889U (en) | 2016-12-15 | 2016-12-15 | A kind of new scale formula grouted anchor bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206376889U true CN206376889U (en) | 2017-08-04 |
Family
ID=59406229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621375099.4U Expired - Fee Related CN206376889U (en) | 2016-12-15 | 2016-12-15 | A kind of new scale formula grouted anchor bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206376889U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114893235A (en) * | 2022-04-29 | 2022-08-12 | 福州大学 | Hollow scalelike grouting double expansion type anchor rod for crushing area |
-
2016
- 2016-12-15 CN CN201621375099.4U patent/CN206376889U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114893235A (en) * | 2022-04-29 | 2022-08-12 | 福州大学 | Hollow scalelike grouting double expansion type anchor rod for crushing area |
| CN114893235B (en) * | 2022-04-29 | 2023-02-10 | 福州大学 | Hollow scalelike grouting double-expansion anchor rod for crushing area |
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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: 20170804 Termination date: 20171215 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |