CN203214081U - Self-propelled hollow anchor rod - Google Patents
Self-propelled hollow anchor rod Download PDFInfo
- Publication number
- CN203214081U CN203214081U CN 201320139607 CN201320139607U CN203214081U CN 203214081 U CN203214081 U CN 203214081U CN 201320139607 CN201320139607 CN 201320139607 CN 201320139607 U CN201320139607 U CN 201320139607U CN 203214081 U CN203214081 U CN 203214081U
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- CN
- China
- Prior art keywords
- anchor rod
- self
- hole
- type hollow
- bolt
- 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 relates to the field of tunnel and mountain slope construction, in particular to a self-propelled hollow anchor rod. The self-propelled hollow anchor rod comprises an anchor rod body and is characterized in that a plurality of through holes are formed in the anchor rod body, and the center points of the through holes are not in a same straight line. According to the design, the grouting holes are distributed in multiple parts of the anchor rod body, and the grouting speed and the grouting distribution uniformity are improved under the condition that the intensity of the anchor rod body is not influenced. Compared with a traditional grouting anchor rod, the self-propelled hollow anchor rod has the advantages of flexibility in construction, simple process and easiness in operation.
Description
Technical field
The utility model relates to tunnel, massif slope construction field, is specially a kind of self-advancing type hollow bolt.
Background technology
In Tunnel Landslide processing and loose massif side slope protection work progress, traditional self-advancing type hollow bolt injected hole is positioned at the anchor pole end and links to each other with drill bit.Because the Zhujiang River time of single hole slip casting is long, needs deep layer slip casting rock stratum effect very undesirable for some.
Summary of the invention
The purpose of this utility model is to provide a kind of shortening slip casting activity duration, improves the self-advancing type hollow bolt of range of grouting in the single time, assurance slip casting effect.
In order to achieve the above object, the utility model is achieved in that
A kind of self-advancing type hollow bolt, it comprises bolt body, has some through holes on the bolt body, the central point of through hole is not on the same straight line.
Described self-advancing type hollow bolt, the cross sectional shape of through hole are circle or cross.
Described self-advancing type hollow bolt, the diameter of through hole are 1/100 ~ 8/100 of rock-bolt length.
Described self-advancing type hollow bolt, through hole are laid in bolt body front end 1/3 ~ 1/4 place.
The utility model adopts above-mentioned design, injected hole is distributed in a plurality of positions of bolt body, improved the uniformity that injection speed, chief commander distribute under the situation that does not influence anchor rod body intensity, more traditional grouted anchor bar has construct flexible, simple, the maneuverable advantage of technology.
Description of drawings
Fig. 1 is structural representation of the present utility model.
The specific embodiment
Below further specify the utility model by specific embodiment.
As shown in Figure 1, a kind of self-advancing type hollow bolt, it comprises bolt body 1, has some through holes 2 on the bolt body 1, the central point of through hole 2 is not on the same straight line.
Described self-advancing type hollow bolt, the cross sectional shape of through hole 2 are circle or cross.
Described self-advancing type hollow bolt, the diameter of through hole 2 are 1/100 ~ 8/100 of bolt body 1 length.
Described self-advancing type hollow bolt, through hole 2 are laid in bolt body 1 front end 1/3 ~ 1/4 place.
The utility model adopts above-mentioned design, injected hole is distributed in a plurality of positions of bolt body, improved the uniformity that injection speed, chief commander distribute under the situation that does not influence anchor rod body intensity, more traditional grouted anchor bar has construct flexible, simple, the maneuverable advantage of technology.
Claims (4)
1. self-advancing type hollow bolt, it comprises bolt body, it is characterized in that: have some through holes on the bolt body, the central point of through hole is not on the same straight line.
2. self-advancing type hollow bolt according to claim 1, it is characterized in that: the cross sectional shape of through hole is circle or cross.
3. self-advancing type hollow bolt according to claim 1 and 2, it is characterized in that: the diameter of through hole is 1/100 ~ 8/100 of rock-bolt length.
4. self-advancing type hollow bolt according to claim 1, it is characterized in that: through hole is laid in bolt body front end 1/3 ~ 1/4 place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320139607 CN203214081U (en) | 2013-03-26 | 2013-03-26 | Self-propelled hollow anchor rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320139607 CN203214081U (en) | 2013-03-26 | 2013-03-26 | Self-propelled hollow anchor rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203214081U true CN203214081U (en) | 2013-09-25 |
Family
ID=49203627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320139607 Expired - Fee Related CN203214081U (en) | 2013-03-26 | 2013-03-26 | Self-propelled hollow anchor rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203214081U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104481550A (en) * | 2014-10-23 | 2015-04-01 | 中国二十冶集团有限公司 | Tunnel collapse treatment advance support method |
-
2013
- 2013-03-26 CN CN 201320139607 patent/CN203214081U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104481550A (en) * | 2014-10-23 | 2015-04-01 | 中国二十冶集团有限公司 | Tunnel collapse treatment advance support method |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130925 |