CN206319315U - Multi-section type variable cross-section grouted anchor bar - Google Patents
Multi-section type variable cross-section grouted anchor bar Download PDFInfo
- Publication number
- CN206319315U CN206319315U CN201620956111.4U CN201620956111U CN206319315U CN 206319315 U CN206319315 U CN 206319315U CN 201620956111 U CN201620956111 U CN 201620956111U CN 206319315 U CN206319315 U CN 206319315U
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- CN
- China
- Prior art keywords
- grouted anchor
- anchor bar
- section
- spherical
- holdfast
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- Expired - Fee Related
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- Piles And Underground Anchors (AREA)
Abstract
The utility model is related to Geotechnical Engineering side slope protection field, specifically a kind of device for utilizing multi-section type variable cross-section grouted anchor bar to be used for resistance to plucking and slope retaining etc..Specifically include following technical scheme：Grouted anchor bar body is made up of the spherical Rockbolt element of different expansion body radiuses, and the spherical Rockbolt element of wherein bottommost is provided with grout outlet, and spherical Rockbolt element inner hollow.In the inside of grouted anchor bar body, pull bar is set up, taper holdfast is connected on pull bar by rotating shaft, and taper holdfast is passed by arc opening groove.The technical program has simple in construction, cheap, the characteristics of protection effect is good.
Description
Technical field
The utility model is related to Geotechnical Engineering side slope protection field, particularly a kind of to utilize multi-section type variable cross-section grouted anchor bar
Device for resistance to plucking and slope retaining etc..
Background technology
Suspension roof support is simple in construction with its, easy construction, low cost and to engineering adaptability it is strong the features such as, in Geotechnical Engineering
It is widely applied in side slope protection.Anchor pole mainly makes in deep foundation pit support, slope retaining, geological hazard control engineering
With general is generally the withdrawal resistance for providing anchor pole；The basic construction technology of suspension roof support：Drilling, grouting, insertion anchor pole, also have
Using the construction method such as press-in or screw-in anchor pole.Conventional anchor has the following disadvantages in soil level sideslope safeguard structure at present：1、
The anchoring ability of anchor pole is not enough, often occur slope protection structure anchor pole is taken out of, the phenomenon of slope failure.2nd, in side slope flexible
In vegetative protection structure, traditional reinforced anchor bolt and flexible net are connected illusive phenomenon, easily cause anchor pole and protection is soft
Property net depart from phenomenon, so as to cause partial collapse.3rd, for large-scale soil quality dam, to carry out flexible vegetative protection, it is necessary to
Substantial amounts of reinforced anchor bolt, so that construction costs is very high；4th, in order to reach certain anchor force, the anchoring depth of conventional anchor
Greatly, waste of resource.
As the current highway of China, a large amount of of railway build, in order to maintain the stabilization of soil quality dam, anchor pole should
With more extensively, therefore, urgent need is a kind of can to overcome the new-type anchor pole of conventional anchor shortcoming.
The content of the invention
In order to solve the above-mentioned technical problem, the utility model, which provides one kind, has fine resistance to plucking, antiskid shifting function multi-section type to become
Section grouted anchor bar.Specifically include following technical scheme：Grouted anchor bar body is by the different spherical Rockbolt element groups for expanding body radiuses
Into the spherical Rockbolt element of wherein bottommost is provided with grout outlet, and spherical Rockbolt element inner hollow.In grouted anchor bar body
Inside, set up pull bar, taper holdfast is connected on pull bar by rotating shaft, and taper holdfast is passed by arc opening groove.This skill
Art scheme has simple in construction, cheap, the characteristics of protection effect is good.
Brief description of the drawings
Fig. 1 the utility model multi-section type variable cross-section grouted anchor bar structural representations；
Grouted anchor bar structural representations of the Fig. 2 with holdfast；
Schematic diagram of Fig. 3 the utility model in soil；
1. grouted anchor bar body, 2. grout outlets, 3. spherical Rockbolt elements, 4. pull bars, 5. rotating shafts, 6. taper holdfasts, 7. arcs
Shape open slot.
Embodiment
Embodiment 1
The present embodiment is the grouted anchor bar sheet for being formed by connecting as shown in Figure 1 by the spherical Rockbolt element 3 of different expansion body radiuses
The spherical Rockbolt element of body 1, wherein bottommost is provided with grout outlet 2, the spherical inner hollow of Rockbolt element 3.
Grouted anchor bar body 1 of the present utility model is different from existing cylindric anchor pole, and its spherical Rockbolt element 3 is in ball-type
The diameter of olive-type can according to soil layer or select different diameters the need for practice of construction soil layer environment, starch bolt body 1
What the quantity that its length also can be by changing spherical Rockbolt element 3 was increased or decreased.
Embodiment 2
As a kind of preferred structure of the utility model, in the inside of the grouted anchor bar body 1 shown in embodiment 1, set up
Pull bar 4, taper holdfast 6 is connected on pull bar 4 by rotating shaft 5, and taper holdfast 6 is passed by arc opening groove 7.With to pull bar
4 one outside pulling force, taper holdfast 6 can outwards be overhanged with the rotation of rotating shaft 5, penetrate the periphery of grouted anchor bar body 1 week
In the cement mortar and soil on side, this structure can play a part of more preferable suspension roof support.
During construction, drilled by rig, then by controlling high pressure pump pressure, high-pressure slip-casting is carried out, by certain
Scale segment reaming and slip casting are such as：2 meters of depth, 1.5 meters of depth, 1 meter of depth, 0.5 meter of depth is carried out high respectively
Pressure grouting, its object is to hole is expanded into the outer contour shape similar to the utility model grouted anchor bar body 1.As shown in Figure 3.
Pore-forming, the then slip casting in hole are carried out by the hole body of design, then the bolt body shown in embodiment 1 is inserted the hole for having noted slurry
It is interior；Or the grouted anchor bar with holdfast shown in embodiment 2 can also be inserted in the hole for having noted slurry, do not have in cement mortar now dry
When give pull bar 5 one outside pulling force so that taper holdfast 7 outwards struts and penetrates mud and soil layer, after a period of time
Bolt body 1 is bonded with the slurry in hole；Benefit slurry is finally carried out in bolt body, suspension roof support construction is finished.
Claims (1)
1. a kind of multi-section type variable cross-section grouted anchor bar, it is characterised in that：Grouted anchor bar body (1) is spherical by different expansion body radiuses
Rockbolt element (3) is constituted, and the spherical Rockbolt element (3) of wherein bottommost is provided with grout outlet, and grouted anchor bar body (1)
Portion is hollow；Inside in grouted anchor bar body (1), sets up pull bar (4), and taper holdfast (6) is connected to pull bar by rotating shaft (5)
(4) on, taper holdfast (6) is passed by arc opening groove (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620956111.4U CN206319315U (en) | 2016-08-26 | 2016-08-26 | Multi-section type variable cross-section grouted anchor bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620956111.4U CN206319315U (en) | 2016-08-26 | 2016-08-26 | Multi-section type variable cross-section grouted anchor bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206319315U true CN206319315U (en) | 2017-07-11 |
Family
ID=59262128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620956111.4U Expired - Fee Related CN206319315U (en) | 2016-08-26 | 2016-08-26 | Multi-section type variable cross-section grouted anchor bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206319315U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110607881A (en) * | 2018-06-15 | 2019-12-24 | 上海天补材料科技有限公司 | Whitewash mortar hollowing bonding regeneration technology |
-
2016
- 2016-08-26 CN CN201620956111.4U patent/CN206319315U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110607881A (en) * | 2018-06-15 | 2019-12-24 | 上海天补材料科技有限公司 | Whitewash mortar hollowing bonding regeneration technology |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170711 Termination date: 20180826 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |