CN204436426U - A kind of surrender formula rock bolt - Google Patents
A kind of surrender formula rock bolt Download PDFInfo
- Publication number
- CN204436426U CN204436426U CN201520079898.6U CN201520079898U CN204436426U CN 204436426 U CN204436426 U CN 204436426U CN 201520079898 U CN201520079898 U CN 201520079898U CN 204436426 U CN204436426 U CN 204436426U
- Authority
- CN
- China
- Prior art keywords
- rod
- sleeve pipe
- rock bolt
- described sleeve
- surrender
- 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
Links
Abstract
The utility model provides a kind of surrender formula rock bolt, and a kind of surrender formula rock bolt, comprise the body of rod and sleeve pipe, the described body of rod and sleeve-shaped are snakelike, and the described body of rod is arranged on the inside of described sleeve pipe, non-filler between described sleeve pipe and the body of rod.Because the body of rod is partially restrained at inside pipe casing, under rock mass large deformation condition, anchor pole still can keep certain drag, ensure that the stability of rock mass.
Description
Technical field
The utility model relates to a kind of underground engineering construction device, especially relates to a kind of surrender formula rock bolt.
Background technology
In geotechnical engineering construction field, underground, rock bolt is one of important measures of surrounding rock supporting.In heavily stressed surrounding rock supporting process, surrouding rock deformation is larger.Common bolt, due to the restriction of elongation per unit length, under the condition that surrouding rock deformation is larger, is easily pulled off, thus loses support capacity.
Utility model content
The utility model provides a kind of surrender formula rock bolt, and the body of rod is arranged to snakelike by this anchor pole, and at body of rod outer setting sleeve pipe, and because the body of rod is partially restrained at inside pipe casing, under rock mass large deformation condition, anchor pole still can keep certain drag.Its technical scheme is as described below:
A kind of surrender formula rock bolt, comprise the body of rod and sleeve pipe, the described body of rod and sleeve-shaped are snakelike, and the described body of rod is arranged on the inside of described sleeve pipe, non-filler between described sleeve pipe and the body of rod.
The top of described sleeve pipe is enclosed construction.
Described sleeve pipe is placed in the boring on rock mass, is perfused with mortar between described sleeve pipe and rock mass.
At boring end, be provided with backing plate and nut, for the fastening body of rod.
The material of described sleeve pipe is metal.
The utility model is under later stage rock mass large deformation condition, and because the body of rod is partially restrained at inside pipe casing, the body of rod is constantly drawn out, but still can keep certain drag, ensure that the stability of rock mass.
Accompanying drawing explanation
Fig. 1 is the structural representation of described surrender formula rock bolt;
1-nut in figure; 2-mortar; The 3-body of rod; 4-rock mass; 5-holes; 6-sleeve pipe; 7-backing plate.
Detailed description of the invention
Structure of the present utility model as shown in Figure 1: comprise the body of rod 3 and sleeve pipe 6 two parts, the described body of rod 3 and sleeve pipe 6 shape are snakelike, and it is inner that the described body of rod 3 is arranged on described sleeve pipe 6.Described sleeve pipe 6 top is closed, non-filler between described sleeve pipe 6 and the body of rod 3.
Perfusion mortar 2 between described sleeve pipe 6 and rock mass 4.At boring 5 end, be provided with backing plate 7 and nut 1, for the fastening body of rod 3.The material of described sleeve pipe 6 is metal.
After the purpose of this utility model is achieved in that boring completes, the body of rod and sleeve pipe are put into boring, between sleeve pipe and boring, inject mortar, finally backing plate and nut are installed.
Claims (5)
1. a surrender formula rock bolt, it is characterized in that: comprise the body of rod (3) and sleeve pipe (6), the described body of rod (3) and sleeve pipe (6) shape are snakelike, the described body of rod (3) is arranged on the inside of described sleeve pipe (6), non-filler between described sleeve pipe (6) and the body of rod (3).
2. surrender formula rock bolt according to claim 1, is characterized in that: the top of described sleeve pipe (6) is enclosed construction.
3. surrender formula rock bolt according to claim 1, it is characterized in that: described sleeve pipe (6) is placed in the boring (5) on rock mass (4), is perfused with mortar (2) between described sleeve pipe (6) and rock mass (4).
4. surrender formula rock bolt according to claim 3, is characterized in that: at boring (5) end, be provided with backing plate (7) and nut (1), for the fastening body of rod (3).
5. surrender formula rock bolt according to claim 1, is characterized in that: the material of described sleeve pipe (6) is metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520079898.6U CN204436426U (en) | 2015-02-04 | 2015-02-04 | A kind of surrender formula rock bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520079898.6U CN204436426U (en) | 2015-02-04 | 2015-02-04 | A kind of surrender formula rock bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204436426U true CN204436426U (en) | 2015-07-01 |
Family
ID=53604304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520079898.6U Expired - Fee Related CN204436426U (en) | 2015-02-04 | 2015-02-04 | A kind of surrender formula rock bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204436426U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111042845A (en) * | 2019-12-23 | 2020-04-21 | 齐鲁理工学院 | Double-curvature anchor rod and manufacturing method thereof |
-
2015
- 2015-02-04 CN CN201520079898.6U patent/CN204436426U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111042845A (en) * | 2019-12-23 | 2020-04-21 | 齐鲁理工学院 | Double-curvature anchor rod and manufacturing method thereof |
| CN111042845B (en) * | 2019-12-23 | 2021-06-11 | 齐鲁理工学院 | Double-curvature anchor rod and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150701 Termination date: 20220204 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |