CN2780833Y - Self-drill gruniting roofbolt - Google Patents
Self-drill gruniting roofbolt Download PDFInfo
- Publication number
- CN2780833Y CN2780833Y CN 200520023842 CN200520023842U CN2780833Y CN 2780833 Y CN2780833 Y CN 2780833Y CN 200520023842 CN200520023842 CN 200520023842 CN 200520023842 U CN200520023842 U CN 200520023842U CN 2780833 Y CN2780833 Y CN 2780833Y
- Authority
- CN
- China
- Prior art keywords
- anchor rod
- anchor
- self
- rod body
- bar body
- 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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- Piles And Underground Anchors (AREA)
Abstract
The utility model provides a self-drilling type guniting anchor rod which is suitable for reinforcing a soil slope. The self-drilling type guniting anchor rod comprises a pipe type anchor rod body of which the rear end is provided with connecting screw threads, and the front end of the anchor rod body is a tapered pointed end; a grouting hole which is communicated with the inner cavity of the anchor rod body is arranged behind the tapered pointed end and on the anchor rod body, and helical sheets are arranged around the outer surface of the anchor rod body on the front end of the anchor rod body. The utility model adopts the structure which finishes drilling and anchoring once, so the harmful effects of hole collapse, diameter shrinkage, etc., to the burying construction of the anchor rod which are caused by the earthiness of a stratum are avoided; the utility model has the advantages that the construction technology of the anchor rod is simplified, the construction cost is reduced, the efficiency of construction is improved, and simultaneously, the anchoring effect of the anchor rod is effectively improved.
Description
Technical field
The utility model relates to the foundation of civil work construction appliance, is a kind of self-drilling whitewashing anchor pole that is used to reinforce soil-slope specifically.
Background technology
At present, the bolt support structure is widely used in the reinforcing and stable processing of soil-slope, its anchor pole bury common employing preboring pore-forming underground, be lowered to anchor pole again, the job practices of last grouted solid, there are the following problems for this job practices:
1, the preboring pore-forming is met the sand hole of easily collapsing, and meets the easy undergauge of soft cohesive soil;
2, the interior constructional difficulties of hand-hole or following to desired depth under the anchor pole does not usually satisfy designing requirement;
3, because the preboring pore-forming, can form smooth hole wall, cement paste and hole wall in conjunction with relative a little less than, thereby influence giving full play to of anchor-holding force of anchor bolt;
4, construction technology complexity, efficient is low.
Summary of the invention
The purpose of this utility model is at the problems referred to above, provides a kind of and avoids construction influenced by stratum soil property, effectively improves anchoring effect, and makes the self-drilling whitewashing anchor pole that construction technology is simplified, cost reduces, efficient improves.
The technical scheme that realizes above-mentioned purpose is: a kind of self-drilling whitewashing anchor pole, it includes the cast anchor bar body that connecting thread is set in the rear end, the front end of its anchor bar body is arranged to the taper tip, its anchor bar body of the back of taper tip is provided with the injected hole with the anchor bar body intracavity inter-connection, is provided with flight at the anterior distaff external surface of anchor bar body.
The technical solution of the utility model also comprises: the taper tip of described anchor bar body front end is made of taper bit; Described flight is not for waiting gauge structure.
The utility model adopts the brill anchor once to finish structure, thereby harmful effects such as the hole of having avoided stratum soil property to give the anchor pole burial and construction causing of collapsing, undergauge, and anchor rod construction process is simplified, construction cost reduces, efficiency of construction improves, and simultaneously the anchoring effect of anchor pole is effectively improved.
Description of drawings
Accompanying drawing is this self-drilling whitewashing anchor structure schematic diagram.
The specific embodiment
In conjunction with the accompanying drawings the specific embodiment of the present utility model is described:
Provide as accompanying drawing, the utlity model has the anchor bar body 2 that constitutes by seamless steel pipe, be provided with connecting thread 1 in the rear end of anchor bar body, the front end of anchor bar body is arranged to taper tip 3, its tip can be one-body molded by processing and anchor bar body, also can use taper bit to be threaded or be welded on the front end of anchor bar body and constitute.Be provided with the injected hole 4 with the anchor bar body intracavity inter-connection in the back of taper tip 3, its injected hole is provided with a plurality of along the anchor bar body circumference uniform distribution.Anterior distaff external surface at anchor bar body 2 is set with flight 5 through welding.Flight 5 can be arranged to the isometrical flight structure as accompanying drawing, also can adopt the not isometrical flight structure of the descending convergent of former joint flights.
This anchor pole bores with special-purpose anchor pole and is used, and in anchor pole rotary drilling soil layer, the soil body whitewashing to quilt stirs finally forms a cement-soil pile that surrounds anchor pole and combine closely with the soil body on every side, realizes the fixing of anchor pole and anchoring soil layer.
When the utility model used, the lengthening anchor pole that is threaded through the anchor bar body rear end made it to reach the length that needs, and its lengthening anchor pole can be free section anchor structure, also had the anchoring section anchor structure of flight.
Claims (3)
1, a kind of self-drilling whitewashing anchor pole, include the cast anchor bar body (2) that connecting thread (1) is set in the rear end, it is characterized in that: the front end of anchor bar body (2) is arranged to taper tip (3), its anchor bar body of the back of taper tip (2) is provided with the injected hole (4) with the anchor bar body intracavity inter-connection, is provided with flight (5) at the anterior distaff external surface of anchor bar body (2).
2, self-drilling whitewashing anchor pole according to claim 1, it is characterized in that: the taper tip (3) of described anchor bar body (2) front end is made of taper bit.
3, self-drilling whitewashing anchor pole according to claim 1, it is characterized in that: described flight (5) is not for waiting gauge structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520023842 CN2780833Y (en) | 2005-04-12 | 2005-04-12 | Self-drill gruniting roofbolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520023842 CN2780833Y (en) | 2005-04-12 | 2005-04-12 | Self-drill gruniting roofbolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2780833Y true CN2780833Y (en) | 2006-05-17 |
Family
ID=36762034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520023842 Expired - Fee Related CN2780833Y (en) | 2005-04-12 | 2005-04-12 | Self-drill gruniting roofbolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2780833Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101974904A (en) * | 2010-11-05 | 2011-02-16 | 王景军 | Screw anchor rod and processing method using screw anchor rod |
| CN102561370A (en) * | 2012-03-29 | 2012-07-11 | 中铁第四勘察设计院集团有限公司 | Protective structure for reinforcing high-liquid-limit soil slope |
| CN103343536A (en) * | 2013-07-08 | 2013-10-09 | 山东科技大学 | Detent-type soil anchor rod and application thereof |
| CN104141305A (en) * | 2014-07-30 | 2014-11-12 | 武汉武大巨成结构股份有限公司 | Multi-layer spiral blade self-drilling-type soil anchor rod and constructing method thereof |
| CN105735312A (en) * | 2016-04-22 | 2016-07-06 | 孙廷金 | Expansion self-drilling type anchor rod applied to soft soil |
| CN110067253A (en) * | 2019-06-05 | 2019-07-30 | 招商局重庆交通科研设计院有限公司 | From anchoring miniature steel pipe anchoring pile |
| CN113089660A (en) * | 2021-03-26 | 2021-07-09 | 厦门中建东北设计院有限公司 | Construction method of driving-in type combined anchor rod |
-
2005
- 2005-04-12 CN CN 200520023842 patent/CN2780833Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101974904A (en) * | 2010-11-05 | 2011-02-16 | 王景军 | Screw anchor rod and processing method using screw anchor rod |
| CN101974904B (en) * | 2010-11-05 | 2011-12-28 | 王景军 | Screw anchor rod and processing method using screw anchor rod |
| CN102561370A (en) * | 2012-03-29 | 2012-07-11 | 中铁第四勘察设计院集团有限公司 | Protective structure for reinforcing high-liquid-limit soil slope |
| CN103343536A (en) * | 2013-07-08 | 2013-10-09 | 山东科技大学 | Detent-type soil anchor rod and application thereof |
| CN103343536B (en) * | 2013-07-08 | 2016-05-18 | 山东科技大学 | Pawl type soil bolt and application thereof |
| CN104141305A (en) * | 2014-07-30 | 2014-11-12 | 武汉武大巨成结构股份有限公司 | Multi-layer spiral blade self-drilling-type soil anchor rod and constructing method thereof |
| CN104141305B (en) * | 2014-07-30 | 2016-08-24 | 武大巨成结构股份有限公司 | A kind of multi-layer helical blade self-drilling type soil anchor bolt and construction method thereof |
| CN105735312A (en) * | 2016-04-22 | 2016-07-06 | 孙廷金 | Expansion self-drilling type anchor rod applied to soft soil |
| CN110067253A (en) * | 2019-06-05 | 2019-07-30 | 招商局重庆交通科研设计院有限公司 | From anchoring miniature steel pipe anchoring pile |
| CN113089660A (en) * | 2021-03-26 | 2021-07-09 | 厦门中建东北设计院有限公司 | Construction method of driving-in type combined anchor rod |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |