CN203769818U - Shock-resisting large-deformation anchor bolt - Google Patents
Shock-resisting large-deformation anchor bolt Download PDFInfo
- Publication number
- CN203769818U CN203769818U CN201420129859.8U CN201420129859U CN203769818U CN 203769818 U CN203769818 U CN 203769818U CN 201420129859 U CN201420129859 U CN 201420129859U CN 203769818 U CN203769818 U CN 203769818U
- Authority
- CN
- China
- Prior art keywords
- shank
- anchor bolt
- damper
- shock
- free end
- 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 belongs to the field of civil engineering and particularly relates to a shock-resisting large-deformation anchor bolt comprising a shank and an arch damper made of elastic material. The shank is composed of a smooth free end and a spiral anchoring end; the anchoring end of the shank is deeply buried in an anchor member; the free end of the shank sequentially penetrates a relief device, a compression spring and the arch damper and is fixed to the anchor member through a tightening nut. The relief device is composed of a hemispherical shell and the compression spring therein; the compression spring loops the free end of the anchor bolt. The shock-resisting large-deformation anchor bolt is applicable to supporting the surrounding rock in underground engineering; the tail spiral shank and the head arch damper are provided, under the action of impact load, the spiral shank elongates and the arch damper elastically compresses so that the surrounding rock produces large deformation, impact energy is absorbed, and the surrounding rock is less damaged; meanwhile, the shock-resisting large-deformation anchor bolt is simple in structure and convenient to use and has the reinforcing and supporting functions in the common anchor bolt.
Description
Technical field
The utility model belongs to field of civil engineering, is specifically related to a kind of shock resistance large deformation anchor rod.
Background technology
In underground construction, build underground chamber in order to meet the demands such as traffic, mining and military affairs, under conventional bolt support, underground chamber is safe conventionally.But, some in particular cases underground chamber may produce huge destruction, for example, under the Impact Loads such as earthquake, blast, anchor pole is pulled off, the safety that hole Zhou Yanti produces huge destruction and jeopardizes cavern.At present, conventional way is dense bolt supporting, improves the supporting quality of rock mass, alleviates the destruction that impact load causes country rock.But it should be pointed out that the general peak value of impact load is higher, even if high-intensity supporting can not be avoided the destruction of anchor pole and supporting rock mass.Therefore, be necessary the effect feature for impact load, improve the structure design of anchor pole, alleviate the destruction of impact load to anchor pole and country rock.
Utility model content
The purpose of this utility model is to solve shortcoming of the prior art, and a kind of shock resistance large deformation anchor rod is provided, and this anchor pole not only can effectively alleviate the impact force of load, and has advantages of simple in structure, easy to use and with low cost.
The utility model for addressing the above problem adopted technical scheme is: a kind of shock resistance large deformation anchor rod, the arc damper that comprises the body of rod and made by elastomeric material, the described body of rod is made up of smooth free end and spiral helicine anchored end, the anchored end of the body of rod is buried in anchoring body, the free end of the body of rod through decompressor, Compress Spring and arc damper, is fixed on anchoring body by screwing nut successively.
Described decompressor is made up of hemispherical shell and setting Compress Spring in the enclosure, and Compress Spring ring set is on anchor pole free end.
Beneficial effect: the supporting that the utility model is applicable to country rock in underground construction is used, because this anchor pole is provided with the curved body of rod of afterbody and the bow type damper of head, when Impact Load, the stretching elongation of the curved body of rod and damper elastic compression make country rock produce large deformation, apparatus with shock absorbing, alleviates surrounding rock failure.Meanwhile, simple in structure, easy to use, its support reinforcement function also with common bolt of this anchor rod device.The utility model is provided with decompressor in the inside of arc damper, is reduced pressure and is greatly reduced the load that impact causes by secondary, has extended the application life of anchor pole, has alleviated the destruction of impact load to anchor pole and country rock.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Reference numeral: 1, the body of rod, 101, free end, 102, anchored end, 2, arc damper, 3, decompressor, 4, screw nut, 5, anchoring body.
Detailed description of the invention
For understanding better the utility model, below in conjunction with the drawings and specific embodiments, the utility model is elaborated.As shown in the figure: a kind of shock resistance large deformation anchor rod, comprise the body of rod 1 and the arc damper 2 of being made by elastomeric material, the described body of rod 1 is made up of smooth free end 101 and spiral helicine anchored end 102, the anchored end 102 of the body of rod 1 is buried in anchoring body 6, and the free end 101 of the body of rod 1 is fixed on anchoring body 5 by screwing nut 4 through behind the arc center of decompressor 3, Compress Spring and arc damper 2 successively.
Described decompressor 3 is made up of hemispherical shell and setting Compress Spring in the enclosure, and Compress Spring ring set is on anchor pole free end.
Using method of the present utility model is first to select satisfactory reinforcing bar and plate to make the body of rod 1 and the bow damper 2 of anchor pole; Secondly, on anchoring country rock, hole, and make aperture be greater than the transverse width of curved foot piece; Then, in hole, lay anchor pole, and to slip casting in hole; Finally, in the time that anchor pole meets drawing condition, bow type damper 2 be installed in end and screwed nut 4, forming final anchoring body.
This anchor pole has the function of resisting impact load, producing large deformation, and it utilizes the curved body of rod 1 of afterbody and bow type damper 2 apparatus with shock absorbings of end, alleviates the destruction that impact load causes.This anchor pole has feature simple in structure, easy to use and with low cost, and has the general utility functions of common bolt supporting country rock concurrently.
Claims (2)
1. a shock resistance large deformation anchor rod, it is characterized in that: the arc damper (2) that comprises the body of rod (1) and made by elastomeric material, the described body of rod (1) is made up of smooth free end (101) and spiral helicine anchored end (102), the anchored end (102) of the body of rod (1) is buried in anchoring body (5), the free end (101) of the body of rod (1) through decompressor (3), Compress Spring and arc damper (2), is fixed on anchoring body (5) by screwing nut (4) successively.
2. a kind of shock resistance large deformation anchor rod according to claim 1, is characterized in that: described decompressor (3) is made up of hemispherical shell and setting Compress Spring in the enclosure, and Compress Spring ring set is on anchor pole free end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420129859.8U CN203769818U (en) | 2014-03-21 | 2014-03-21 | Shock-resisting large-deformation anchor bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420129859.8U CN203769818U (en) | 2014-03-21 | 2014-03-21 | Shock-resisting large-deformation anchor bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203769818U true CN203769818U (en) | 2014-08-13 |
Family
ID=51287018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420129859.8U Expired - Fee Related CN203769818U (en) | 2014-03-21 | 2014-03-21 | Shock-resisting large-deformation anchor bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203769818U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103821547A (en) * | 2014-03-21 | 2014-05-28 | 洛阳理工学院 | Shockproof large-deformation anchor rod |
| CN104632248A (en) * | 2015-01-22 | 2015-05-20 | 山东大学 | Protection and treatment method for tunnel top karst cave |
| CN111042127A (en) * | 2019-12-27 | 2020-04-21 | 宁夏大学 | Energy-consumption self-recovery pressure type anchor rod and construction method thereof |
-
2014
- 2014-03-21 CN CN201420129859.8U patent/CN203769818U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103821547A (en) * | 2014-03-21 | 2014-05-28 | 洛阳理工学院 | Shockproof large-deformation anchor rod |
| CN103821547B (en) * | 2014-03-21 | 2016-08-24 | 洛阳理工学院 | A kind of shock resistance large deformation anchor rod |
| CN104632248A (en) * | 2015-01-22 | 2015-05-20 | 山东大学 | Protection and treatment method for tunnel top karst cave |
| CN111042127A (en) * | 2019-12-27 | 2020-04-21 | 宁夏大学 | Energy-consumption self-recovery pressure type anchor rod and construction method thereof |
| CN111042127B (en) * | 2019-12-27 | 2021-07-20 | 宁夏大学 | Construction method of energy-consumption self-recovery pressure type anchor rod |
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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: 20140813 Termination date: 20150321 |
|
| EXPY | Termination of patent right or utility model |