CN202359560U - Tubular anchor rod with trumpet-shaped bottom end - Google Patents
Tubular anchor rod with trumpet-shaped bottom end Download PDFInfo
- Publication number
- CN202359560U CN202359560U CN2011204937424U CN201120493742U CN202359560U CN 202359560 U CN202359560 U CN 202359560U CN 2011204937424 U CN2011204937424 U CN 2011204937424U CN 201120493742 U CN201120493742 U CN 201120493742U CN 202359560 U CN202359560 U CN 202359560U
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- CN
- China
- Prior art keywords
- anchor rod
- tubular anchor
- rod body
- tube wall
- bottom 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 relates to a tubular anchor rod with a trumpet-shaped bottom end. The tubular anchor rod comprises a hollow tubular anchor rod body with two open ends, a stopper ring and a backing plate; axial grooves that penetrate through the tube wall of the tubular anchor rod body are uniformly spaced at the bottom end of the tubular anchor rod body in the circumferential direction; the stopper ring with the backing plate is arranged at the top end of the tubular anchor rod body; a blasting charge filled with a detonator is arranged in the tubular wall at the bottom end of the tubular anchor rod where the axial grooves are arranged; the detonator is connected with a detonator wire; and a blasting charge is arranged in the non-grooved tube wall of the tubular anchor rod body. The tubular anchor rod with the trumpet-shaped bottom end is simple in structure, capable of providing pulling resistance immediately to obtain an instant anchoring effect, and capable of remarkably optimizing and improving the load transmission mechanism of rock soil anchoring at the same time, so that the stability of rock soil body is strengthened and the safety of anchoring tunnels, side slopes, deep foundation pits and the like is greatly strengthened.
Description
Technical field
The utility model relates to the ground anchorage technology, relates in particular to the horn-like pipe anchor rod in bottom.
Background technology
Ground anchorage is through being embedded in the anchor pole in the stratum; The stratum is locked together tightly; Rely on the interaction of anchor pole-injecting cement paste-hole wall ground muscle power, transfer and improve self intensity and self-stable ability of geotechnical body, to improve stress state; Guarantee the stable of outside geotechnical body, thereby guarantee the technology of engineering safety.The ground anchorage technology can trace back to for 19 end of the centurys in the application in engineering relevant with ground; Development along with its theoretical research and practical applications; The ground anchorage technology has been widely used in departments such as mine, water conservancy, water power, highway, railway, municipal administration, urban construction, geology, military project; As a kind of comparatively desirable support form, in underground construction, slope project, deep-foundation pit engineering etc. stable, play a significant role.
Ground anchorage not only receives the influence of formation lithology, Rock-soil Mass Structure, geological structure, hydrogeology etc., also possibly receive the effect of violent earthquake, and they all constitute a threat to the safety of ground anchorage.
Construction and run duration at ground anchorage; Anchor pole is extracted from injecting cement paste, anchor pole is extracted from anchor hole together with injecting cement paste is two kinds of ground anchorage mode of failure the most basic; They all can cause ground anchorage to lose efficacy; And bring hidden danger, thereby the uplift resistance that the restriction anchor pole can provide to engineering safety.Thereby; When the uplift resistance that provides when needs is big; The common anchor rod anchored needs that can not satisfy engineering become the bottleneck that restricts ground anchorage technical application and development, how to improve the Load Transfer mechanism of ground anchorage; Overcome the drawback of common friction-type anchoring, become the fundamental way that improves anti-pulling of anchor bar.
In addition, the mortar anchoring initial stage almost can not provide uplift resistance, thereby can not adapt to the requirement of needs supporting immediately behind the weak rocks soil excavation.Though existing pipe-seam type anchor rod overcomes above-mentioned shortcoming to some extent, anchor pole can provide uplift resistance after installing immediately, helps in time controlling the distortion of geotechnical body, and the uplift resistance that can provide is little; Simultaneously, because the weak rocks soil body can be clamp-oned tube chamber from the pipe seam of pipe-seam type anchor rod, cause uplift resistance to reduce.And existing waterpower expand tube formula anchor pole processing technology is complicated, construction inconvenience, uses less.
The utility model content
The utility model technical problem to be solved provides and a kind ofly increases work efficiency, the horn-like pipe anchor rod in bottom of easy construction.
For addressing the above problem, the horn-like pipe anchor rod in the described bottom of the utility model is characterized in that: it comprises the pipe anchor rod body of rod and the baffle ring and the backing plate of both ends open, hollow; The bottom of the said pipe anchor rod body of rod uniformly-spaced has the axial groove that penetrates tube wall along circumferential direction, and its top is provided with the said baffle ring with said backing plate; Said pipe anchor rod body of rod bottom has in the said tube wall of said axial groove and is provided with the blast charging that detonator is housed, and this detonator is connected with the detonator payment to a porter; Be provided with said blast charging in the unslotted tube wall of the said pipe anchor rod body of rod.
Said pipe anchor rod body of rod bottom has 2～5 times of blast charging line density in the unslotted tube wall that blast charging line density in the said tube wall of said axial groove is the said pipe anchor rod body of rod.
The utility model compared with prior art has the following advantages:
1, in the utility model, charging explosion produces strong effect to body of rod tube wall in the anchor rod body tube wall on the one hand, makes tube wall produce plastic strain; The radial compression geotechnical body, thus friction produced at hole wall, uplift resistance is provided immediately; Stop geotechnical body to be slided along tube wall; Reach the purpose of anchoring at once, accelerated programming, improved operating efficiency; On the other hand, the tube wall that the charging explosion effect of anchor pole bottom has the anchor pole bottom groove to around push open into horn-likely, make the anchor pole bottom be able to enlarge, also uplift resistance can be provided immediately.Simultaneously; Be provided with injecting cement paste in the pipe anchor rod, anchor rod anchored through filling and injecting slurry body in this realized the combination of anchor pole and injecting cement paste different performance; Optimize and improved the Load Transfer mechanism of ground anchorage significantly; Make common friction-type anchoring convert friction-pressure-type anchoring to, can prevent effectively that anchor pole from extracting from anchor hole together with injecting cement paste, promptly anchor pole destroys together with the contact interface of injecting cement paste edge with geotechnical body; Thereby strengthened the stability of geotechnical body, the safety of anchoring tunnel, side slope, deep foundation ditch etc. is strengthened greatly.
2, the utility model simple in structure, be convenient to processing, easy construction.
Description of drawings
Below in conjunction with accompanying drawing the specific embodiment of the utility model is done further detailed explanation.
Fig. 1 is the structural representation of the utility model.
Fig. 2 uniformly-spaced has the anchor pole and the powder charge sketch map of groove for the utility model charge explosion forward position circumferential direction.
Fig. 3 uniformly-spaced has the anchor pole bottom sketch map of groove for the utility model charge explosion forward position circumferential direction.
Among the figure: 1-geotechnical body 2-injecting cement paste 3-boring 4-pipe anchor rod body of rod 5-horn-like bottom 6-backing plate 7-baffle ring 8-blast charging 9-detonator 10-detonator payment to a porter 11-stemming 12-tube wall 13-axial groove.
The specific embodiment
Shown in Fig. 1～3, the horn-like pipe anchor rod in bottom, it comprises the pipe anchor rod body of rod 4 and the baffle ring 7 and the backing plate 6 of both ends open, hollow.The bottom of the pipe anchor rod body of rod 4 uniformly-spaced has the axial groove 13 that penetrates tube wall 12 along circumferential direction, and its top is provided with the baffle ring 7 of band backing plate 6.The pipe anchor rod body of rod 4 bottoms have in the tube wall 12 of axial groove 13 and are provided with the blast charging 8 that detonator 9 is housed, and this detonator 9 is connected with detonator payment to a porter 10; Be provided with blast charging 8 in the unslotted tube wall 12 of the pipe anchor rod body of rod 4.
Wherein: the pipe anchor rod body of rod 4 bottoms have 2～5 times of blast charging 8 line densities in the unslotted tube wall 12 that blast charging 8 line densities in the tube wall 12 of axial groove 13 are the pipe anchor rod body of rod 4.
During use, (1) holes 3 by designing requirement to the weak rocks soil body 1; (2) the pipe anchor rod body of rod 4 is inserted in the boring 3, fill stemming 11 on the pipe anchor rod body of rod 4 tops; (3) blast charging 8 that detonates, detonation makes tube wall 12 radial compression geotechnical body 1, the tube wall 12 that the bottom has an axial groove 13 by to around pushed into open horn-like bottom 5; (4) filling and injecting slurry body 2 in the pipe anchor rod body of rod 4 being carried out anchoring gets final product.
Claims (2)
1. the horn-like pipe anchor rod in bottom, it is characterized in that: it comprises the pipe anchor rod body of rod (4) and the baffle ring (7) and the backing plate (6) of both ends open, hollow; The bottom of the said pipe anchor rod body of rod (4) uniformly-spaced has the axial groove (13) that penetrates tube wall (12) along circumferential direction, and its top is provided with the said baffle ring (7) with said backing plate (6); The said pipe anchor rod body of rod (4) bottom has in the said tube wall (12) of said axial groove (13) and is provided with the blast charging (8) that detonator (9) are housed, and this detonator (9) is connected with detonator payment to a porter (10); Be provided with said blast charging (8) in the unslotted tube wall (12) of the said pipe anchor rod body of rod (4).
2. the horn-like pipe anchor rod in bottom as claimed in claim 1 is characterized in that: the said pipe anchor rod body of rod (4) bottom has 2～5 times of blast charging (8) line density in the unslotted tube wall (12) that blast charging (8) line density in the said tube wall (12) of said axial groove (13) is the said pipe anchor rod body of rod (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204937424U CN202359560U (en) | 2011-11-30 | 2011-11-30 | Tubular anchor rod with trumpet-shaped bottom end |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204937424U CN202359560U (en) | 2011-11-30 | 2011-11-30 | Tubular anchor rod with trumpet-shaped bottom end |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202359560U true CN202359560U (en) | 2012-08-01 |
Family
ID=46570755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204937424U Expired - Fee Related CN202359560U (en) | 2011-11-30 | 2011-11-30 | Tubular anchor rod with trumpet-shaped bottom end |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202359560U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103132520A (en) * | 2011-11-30 | 2013-06-05 | 兰州大学 | Pipe type anchor rod with horn-shaped bottom end |
| CN103470288A (en) * | 2013-09-02 | 2013-12-25 | 山西潞安环保能源开发股份有限公司 | Anchoring split adjustable anchor rod filled in explosion expanded cavity |
| CN103774651A (en) * | 2012-10-26 | 2014-05-07 | 兰州大学 | Olive-shaped anti-slip key grouted anchoring supporting blasting anchor rod |
| CN103774659A (en) * | 2012-10-26 | 2014-05-07 | 兰州大学 | Cake-shaped feather-key-resistant tubular type anchor rod |
| CN103774654A (en) * | 2012-10-26 | 2014-05-07 | 兰州大学 | Olive-shaped anti-slip key grouted anchoring supporting blasting tube type anchor rod |
| CN103774655A (en) * | 2012-10-26 | 2014-05-07 | 兰州大学 | Cake-shaped reinforced feather-key-resistant tubular type anchor rod |
| CN103774661A (en) * | 2012-10-26 | 2014-05-07 | 兰州大学 | Inverted bolt tubular anchor rod |
| CN104831723A (en) * | 2015-04-30 | 2015-08-12 | 广西大学 | Blasting type anchor rod and mounting method thereof |
-
2011
- 2011-11-30 CN CN2011204937424U patent/CN202359560U/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103132520A (en) * | 2011-11-30 | 2013-06-05 | 兰州大学 | Pipe type anchor rod with horn-shaped bottom end |
| CN103774661A (en) * | 2012-10-26 | 2014-05-07 | 兰州大学 | Inverted bolt tubular anchor rod |
| CN103774651A (en) * | 2012-10-26 | 2014-05-07 | 兰州大学 | Olive-shaped anti-slip key grouted anchoring supporting blasting anchor rod |
| CN103774659A (en) * | 2012-10-26 | 2014-05-07 | 兰州大学 | Cake-shaped feather-key-resistant tubular type anchor rod |
| CN103774654A (en) * | 2012-10-26 | 2014-05-07 | 兰州大学 | Olive-shaped anti-slip key grouted anchoring supporting blasting tube type anchor rod |
| CN103774655A (en) * | 2012-10-26 | 2014-05-07 | 兰州大学 | Cake-shaped reinforced feather-key-resistant tubular type anchor rod |
| CN103774654B (en) * | 2012-10-26 | 2015-11-04 | 兰州大学 | Olive-shaped antiskid key slip casting anchoring support explosion pipe anchor rod |
| CN103774659B (en) * | 2012-10-26 | 2015-12-09 | 兰州大学 | Round pie antiskid key pipe anchor rod |
| CN103774661B (en) * | 2012-10-26 | 2015-12-16 | 兰州大学 | Anti-bolt pipe anchor rod |
| CN103774651B (en) * | 2012-10-26 | 2016-01-20 | 兰州大学 | Olive-shaped antiskid key slip casting anchoring support explosion anchor pole |
| CN103774655B (en) * | 2012-10-26 | 2016-03-30 | 兰州大学 | Round pie reinforcement antiskid key pipe anchor rod |
| CN103470288A (en) * | 2013-09-02 | 2013-12-25 | 山西潞安环保能源开发股份有限公司 | Anchoring split adjustable anchor rod filled in explosion expanded cavity |
| CN104831723A (en) * | 2015-04-30 | 2015-08-12 | 广西大学 | Blasting type anchor rod and mounting 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: 20120801 Termination date: 20141130 |
|
| EXPY | Termination of patent right or utility model |