CN204113316U - A kind of interval screw rod body formula large deformation anchor rod - Google Patents
A kind of interval screw rod body formula large deformation anchor rod Download PDFInfo
- Publication number
- CN204113316U CN204113316U CN201420505977.4U CN201420505977U CN204113316U CN 204113316 U CN204113316 U CN 204113316U CN 201420505977 U CN201420505977 U CN 201420505977U CN 204113316 U CN204113316 U CN 204113316U
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- China
- Prior art keywords
- large deformation
- rod
- screw rod
- rock
- interval
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- Expired - Fee Related
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Abstract
The utility model discloses a kind of interval screw rod body formula large deformation anchor rod, comprise the body of rod, the body of rod is successively through backing plate and tightening nut, and the body of rod is made up of straight bar section and screw rod spacer segment.This large deformation anchor rod is when reinforce adjoining rock generation large deformation, tension can extend and tensile failure model not occur itself, straight bar section spaced apart and screw rod section generation large deformation are with the large deformation of suitable for surrounding rock, in spiral section generation large deformation process, constantly can also absorb the ability of surrouding rock deformation, maintain the stable of country rock.In addition, this apparatus structure is simple, easy to operate, is easy to promote.
Description
Technical field
The utility model belongs to geotechnical engineering anchoring field, is specifically related to a kind of interval screw rod body formula large deformation anchor rod.
Background technology
Often can run into the support issues of weak surrounding rock in the production of the deep-buried underground engineering such as colliery, tunnel and process of construction, because soft rock is out of shape greatly under high-ground stress effect, and the duration is long, therefore has higher requirement to supporting measure.At present, often the mode of the bolt support reinforce adjoining rock is adopted in engineering, but existing anchor pole usual suitable for surrounding rock deformability is more weak, or provides anchored force less, when soft rock mass deflection is large, the cementing emaciated face of anchoring is very easily caused to glue inefficacy, the surrender of Bolted Rock Masses body etc., make anchor rod anchored ability greatly reduce and imitate, and then cause surrouding rock stress rapid adjustment, energy release of surrounding rock speed is fast, cause supporting and protection structure to damage, easily burst accident occurs.
Utility model content
The purpose of this utility model is to provide a kind of interval screw rod body formula large deformation anchor rod, solves elongation per unit length that existing anchor pole exists low and can not meet the problem of roadway surrounding rock large deformation needs.
The technical scheme that the utility model adopts is: a kind of interval screw rod body formula large deformation anchor rod, comprises the body of rod, and the body of rod is successively through backing plate and tightening nut.
Feature of the present utility model is also,
The body of rod is made up of straight bar section and screw rod spacer segment.
The beneficial effects of the utility model are: a kind of interval screw rod body formula large deformation anchor rod, when reinforce adjoining rock generation large deformation, tension can extend and tensile failure model not occur itself, straight bar section spaced apart and screw rod section generation large deformation are with the large deformation of suitable for surrounding rock, in spiral section generation large deformation process, constantly can also absorb the ability of surrouding rock deformation, maintain the stable of country rock.In addition, this apparatus structure is simple, easy to operate, is easy to promote.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of interval of the utility model screw rod body formula large deformation anchor rod;
Fig. 2 is the using state figure of a kind of interval of the utility model screw rod body formula large deformation anchor rod.
In figure, the 1. body of rod, 2. backing plate, 3. tightening nut, 4. straight bar section, 5. screw rod section.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.
The structure of a kind of interval of the utility model screw rod body formula large deformation anchor rod as shown in Figure 1, comprises the body of rod 1, and the body of rod 1 is successively through backing plate 2 and tightening nut 3, and the body of rod 1 is made up of straight bar section 4 and screw rod section 5 interval.
During use, as shown in Figure 2, first the body of rod 1 is fixed on country rock aperture, then backing plate 2 is installed, be fixed with rotating nut 3, in the anchor pole course of work, first there is axial deformation in screw rod section 5 along anchor axial force direction in stressed anchor rod body 1, whole anchor rod body 1 further tension again after screw rod section is deformed into straight line, the tension that reaches capacity pull out force.In addition, the length designed according to screw rod section 5 and joint number, can control the size of maximum deformation quantity.
A kind of interval of the utility model screw rod body formula large deformation anchor rod, when reinforce adjoining rock generation large deformation, tension can extend and tensile failure model not occur itself, straight bar section spaced apart and screw rod section generation large deformation are with the large deformation of suitable for surrounding rock, in spiral section generation large deformation process, constantly can also absorb the ability of surrouding rock deformation, maintain the stable of country rock.In addition, this apparatus structure is simple, easy to operate, is easy to promote.
Claims (2)
1. an interval screw rod body formula large deformation anchor rod, is characterized in that, comprises the body of rod (1), and the described body of rod (1) is successively through backing plate (2) and tightening nut (3).
2. a kind of interval as claimed in claim 1 screw rod body formula large deformation anchor rod, it is characterized in that, the described body of rod (1) is made up of straight bar section (4) and screw rod section (5) interval.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201420505977.4U CN204113316U (en) | 2014-09-03 | 2014-09-03 | A kind of interval screw rod body formula large deformation anchor rod |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201420505977.4U CN204113316U (en) | 2014-09-03 | 2014-09-03 | A kind of interval screw rod body formula large deformation anchor rod |
Publications (1)
Publication Number | Publication Date |
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CN204113316U true CN204113316U (en) | 2015-01-21 |
Family
ID=52330640
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN201420505977.4U Expired - Fee Related CN204113316U (en) | 2014-09-03 | 2014-09-03 | A kind of interval screw rod body formula large deformation anchor rod |
Country Status (1)
Country | Link |
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CN (1) | CN204113316U (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105736023A (en) * | 2016-02-02 | 2016-07-06 | 重庆大学 | Large-deformation energy-absorption anchor rod |
CN105736024A (en) * | 2016-02-02 | 2016-07-06 | 重庆大学 | Self-adaptive energy-absorption anchor rod |
CN113718801A (en) * | 2021-09-02 | 2021-11-30 | 王冲 | Honeycomb soil nail soil body reinforcing accessory for improving slope stability |
-
2014
- 2014-09-03 CN CN201420505977.4U patent/CN204113316U/en not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105736023A (en) * | 2016-02-02 | 2016-07-06 | 重庆大学 | Large-deformation energy-absorption anchor rod |
CN105736024A (en) * | 2016-02-02 | 2016-07-06 | 重庆大学 | Self-adaptive energy-absorption anchor rod |
CN113718801A (en) * | 2021-09-02 | 2021-11-30 | 王冲 | Honeycomb soil nail soil body reinforcing accessory for improving slope stability |
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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: 20150121 Termination date: 20170903 |
|
CF01 | Termination of patent right due to non-payment of annual fee |