CN209066427U - A kind of hole grouting rock bolt centering of falling three-pawl type supporting structure - Google Patents
A kind of hole grouting rock bolt centering of falling three-pawl type supporting structure Download PDFInfo
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- CN209066427U CN209066427U CN201821397794.XU CN201821397794U CN209066427U CN 209066427 U CN209066427 U CN 209066427U CN 201821397794 U CN201821397794 U CN 201821397794U CN 209066427 U CN209066427 U CN 209066427U
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- bracket
- centering
- centering bracket
- anchor pole
- connecting rod
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Abstract
The utility model discloses a kind of hole grouting rock bolt centering of falling three-pawl type supporting structures, including Rock And Soil, anchor pole, first centering bracket, second centering bracket and third centering bracket, the inside of the Rock And Soil is equipped with hole, the inside of hole is equipped with anchor pole, and it is interrupted on the lateral wall of anchor pole and equidistant first centering bracket is fixedly connected with by welding surface, second centering bracket and third centering bracket, the first centering bracket, second centering bracket and third centering bracket are successively welded with first connecting rod and second connecting rod close to the side of anchor pole, and the first centering bracket, the top of second centering bracket and the third centering bracket other side is fixedly connected with inverted triangle bracket.The utility model by be interrupted on the lateral wall of anchor pole it is equidistant bracket in first pair is fixedly connected with by welding surface, bracket in bracket and third pair in second pair, it keeps placed in the middle to achieve the purpose that anchor pole in hole, prevents from being adjacent to Rock And Soil because of Gravitative Loads lower bolt.
Description
Technical field
The utility model relates to anchor pole centering support technology field, specially a kind of hole grouting rock bolt centering of falling three-pawl type
Supporting structure.
Background technique
In high slope and tunnel stabilization are reinforced, grouting rock bolt is as a kind of simple and effective support unit, using universal.
Anchor pole is by the reinforcing bar of a certain radius and certain length as its main material, and to weld radius on its surface is 3mm
Reinforcing bar as its centering bracket, centering bracket be support anchors, guarantee anchor pole work when body of rod component placed in the middle (such as Fig. 1 institute
Show), it is ensured that the thickness of mortar coverage after slip casting reaches effective stressed effect by the mutual power transmission of concrete and rebar.
Existing extensive work studies various forms of centering brackets, and its different role and effect at work.
There is a kind of half camber centering supporting structure of deep hole grouting rock bolt with the more similar patent of this patent
(CN206034436U), it is intended that welded on anchor pole half camber to middle bracket come solve the problems, such as anchor pole to middle.But it exists
Technological deficiency on certain, centering first is ineffective, and anchor pole is not placed on the line position of the hole center of circle；Secondly, centering
Bracket stress is concentrated, easily deformable, is unable to reach effective resistance to plucking stressed effect；Finally, using the work for being greater than 90 degree at inclination angle
When making face, it is easy to produce outside displacement, easily shortens locking segment length, reduces stress size.So mentioned above to solve
The problem of, in this patent, propose a kind of hole grouting rock bolt centering of falling three-pawl type supporting structure, it is contemplated that answer in anchor bolt construction
More efficiently, reasonable effect can be reached in.
Utility model content
The purpose of this utility model is to provide a kind of hole grouting rock bolt centering of falling three-pawl type supporting structures, on solving
State the problem of proposing in background technique.
To achieve the above object, the utility model provides the following technical solutions: a kind of hole grouting rock bolt falls three-pawl type pair
Middle supporting structure, including Rock And Soil, anchor pole, the first centering bracket, the second centering bracket and third centering bracket, the Rock And Soil
Inside be equipped with hole, the inside of hole is equipped with anchor pole, is interrupted on the lateral wall of the anchor pole equidistantly solid by welding surface
Surely be connected with the first centering bracket, the second centering bracket and third centering bracket, the first centering bracket, the second centering bracket with
And the middle position of third centering bracket side is all fixed with reinforcement fin, the first centering bracket, the second centering bracket
And third centering bracket is successively welded with first connecting rod and second connecting rod close to the side of anchor pole, and first connecting rod and second connects
The other end of bar is all fixedly connected with anchor pole, and the first centering bracket, the second centering bracket and the third centering bracket other side
Top be fixedly connected with inverted triangle bracket.
Preferably, the length of the first connecting rod is 2 times of second connecting rod length, and first connecting rod, second connecting rod and the
Angle between one centering bracket, the second centering bracket and third centering bracket is all 30 °.
Preferably, the angle of the first centering bracket, the second centering bracket and third centering bracket and anchor pole bracket
It also is 30 °, and the angle between the first centering bracket, the second centering bracket and third centering bracket is all 120 °.
Preferably, between the inverted triangle bracket and the first centering bracket, the second centering bracket and third centering bracket
Angle be all 30 °, and inverted triangle bracket obtuse angle catercorner length accounts for the first centering bracket, the second centering bracket and third pair
The one third of middle stent length.
Preferably, the first centering bracket, the second centering bracket and the third centering welded at the same section of the anchor pole
Bracket is as one group, and the distance between every group is 1.5-2m.
Compared with prior art, the utility model has the beneficial effects that the hole grouting rock bolt centering of the falling three-pawl type bracket
Structure equidistant is fixedly connected with bracket in first pair, in second pair by welding surface by being interrupted on the lateral wall of anchor pole
Bracket and third centering bracket, keep placed in the middle to achieve the purpose that anchor pole in hole, prevent from pasting because of Gravitative Loads lower bolt
Tight Rock And Soil, is not achieved anchoring effect, is that anchor pole is placed in the middle in hole, concrete grouting can be wrapped effectively using centering bracket
Wrap up in anchor pole, achieve the effect that anchor Rock And Soil, improve the application of effective stress, by first pair bracket, prop up in second pair
The top of frame and the third centering bracket other side is fixedly connected with inverted triangle bracket, when entering the hole of Rock And Soil, utilizes
The advantages of angle and plane, surrounds round radius and hole to middle bracket because of three without worry when welding is to middle bracket
Hole radius is consistent and can not be successfully the problem of squeezing into anchor pole, meanwhile, the first centering bracket, the second centering bracket and third centering branch
Frame lateral ends have inverted triangle structure, drag can be effectively prevent to send out anchor pole due to by outside frictional force in grouting
Raw movement, the frictional force born in anchor pole traveling process to middle bracket are distributed on a face by point contact, can effectively be divided
Stress concentration phenomenon is solved, is conducive to anchor pole and smoothly advances, and centering bracket bent will not be made to deform because of the weight of anchor pole itself,
The utility model by being successively welded with first connecting rod and second connecting rod between middle bracket and anchor pole so that centering bracket,
Triangular structure is constituted between anchor pole and first connecting rod and second connecting rod, cooperates the welding surface of reinforcing, can effectively be reinforced
The structural strength of centering bracket prevents from deforming.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model；
Fig. 2 is the partial structural diagram of the utility model；
Fig. 3 is the first centering supporting structure schematic diagram of the utility model；
Fig. 4 is the overlooking structure diagram of the utility model.
In figure: 1, Rock And Soil；2, hole；3, anchor pole；4, the first centering bracket；5, first connecting rod；6, inverted triangle bracket；7,
Second connecting rod；8, welding surface；9, reinforce fin；10, third centering bracket；11, the second centering bracket.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1-4 is please referred to, a kind of embodiment provided by the utility model: a kind of hole grouting rock bolt centering of falling three-pawl type branch
Frame structure, including Rock And Soil 1, anchor pole 3, the first centering bracket 4, the second centering bracket 11 and third centering bracket 10, Rock And Soil 1
Inside be equipped with hole 2, the inside of hole 2 is equipped with anchor pole 3, is interrupted on the lateral wall of anchor pole 3 equidistant fixed by welding surface 8
It is connected with the first centering bracket 4, the second centering bracket 11 and third centering bracket 10, the first centering bracket 4, the second centering branch
Frame 11 and third centering bracket 10 extend and bend to 3 parallel shape of anchor pole, then welded, form welding surface 8, reinforced
The globality of anchor pole 3 and the first centering bracket 4, the second centering bracket 11 and third centering bracket 10, and add convenient for engineering
It work and uses, the first centering bracket 4, the second centering bracket 11 and the third centering bracket 10 welded at the same section of anchor pole 3
As one group, and the distance between every group be 1.5-2m, be actual requirement of engineering, in prestressed anchor in every group pair bracket it
Between spacing use 1.5m, the spacing in non-prestressed and lower-prestressed anchor pole between every group of centering bracket uses 2m, first pair
The angle of middle bracket 4, the second centering bracket 11 and third centering bracket 10 and 3 bracket of anchor pole is also 30 °, and the first centering branch
Angle between frame 4, the second centering bracket 11 and third centering bracket 10 is all 120 °, the first centering bracket 4, the second centering
The middle position of 10 side of bracket 11 and third centering bracket, which is all fixed with, reinforces fin 9, the first centering bracket 4, second
Centering bracket 11 and third centering bracket 10 are successively welded with first connecting rod 5 and second connecting rod 7 close to the side of anchor pole 3, and
The length of one connecting rod 5 is 2 times of 7 length of second connecting rod, and 4, second pairs of first connecting rod 5, second connecting rod 7 and the first centering bracket
Angle between middle bracket 11 and third centering bracket 10 is all 30 °, and the other end of first connecting rod 5 and second connecting rod 7 is all
It is fixedly connected with anchor pole 3, and the top of 10 other side of the first centering bracket 4, the second centering bracket 11 and third centering bracket
It is fixedly connected with inverted triangle bracket 6, inverted triangle bracket 6 and the first centering bracket 4, the second centering bracket 11 and third centering branch
Angle between frame 10 is all 30 °, and 6 obtuse angle catercorner length of inverted triangle bracket accounts for the first centering bracket 4, the second centering bracket
11 and 10 length of third centering bracket one third.
Working principle: in use, by inside the hole 2 of one end insertion Rock And Soil 1 of anchor pole 3, due to the lateral wall of anchor pole 3
Upper interruption is equidistant to be fixedly connected with the first centering bracket 4, the second centering bracket 11 and third centering bracket by welding surface 8
10 so that anchor pole 3 is placed in the middle in hole 2 always, then, to hole 2 inside inject concrete grout so that concrete grout effectively wraps
Anchor pole 3 is wrapped up in, achievees the effect that anchor Rock And Soil 1, improves the application of effective stress, the first centering bracket 4, the second centering bracket 11
And the middle position of 10 side of third centering bracket is all fixed with and reinforces fin 9, cooperates 4, second pairs of the first centering bracket
Middle bracket 11 and third centering bracket 10 are successively welded with first connecting rod 5 and second connecting rod 7 close to the side of anchor pole 3, enhance
The structural strength of first centering bracket 4, the second centering bracket 11 and third centering bracket 10, in first pair bracket 4,
The outside of two centering brackets 11 and third centering bracket 10 welding inverted triangle bracket 6 can effectively decompose stress concentration phenomenon, keep away
Exempt from anchor pole 3 in hole 2 in traveling process in first pair in 4, second pairs of bracket in bracket 11 and third pair bracket 10 it is curved
Song deformation is obtained since the effect of angle and drag makes 3 outward movment of anchor pole when avoiding being in the milk in hole 2 so that anchor pole 3 is suitable
Benefit is advanced.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and
And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in
All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting
Related claim.
Claims (5)
1. a kind of hole grouting rock bolt centering of falling three-pawl type supporting structure, including Rock And Soil (1), anchor pole (3), the first centering bracket
(4), the second centering bracket (11) and third centering bracket (10), it is characterised in that: the inside of the Rock And Soil (1) is equipped with hole
(2), the inside of hole (2) is equipped with anchor pole (3), is interrupted on the lateral wall of the anchor pole (3) equidistantly solid by welding surface (8)
Surely it is connected with the first centering bracket (4), the second centering bracket (11) and third centering bracket (10), the first centering bracket (4),
The middle position of the second centering bracket (11) and third centering bracket (10) side, which is all fixed with, reinforces fin (9), described
First centering bracket (4), the second centering bracket (11) and third centering bracket (10) are successively welded close to the side of anchor pole (3)
There are first connecting rod (5) and second connecting rod (7), and the other end of first connecting rod (5) and second connecting rod (7) is all fixed with anchor pole (3)
Connection, and the fixed company in top of the first centering bracket (4), the second centering bracket (11) and third centering bracket (10) other side
It is connected to inverted triangle bracket (6).
2. a kind of hole grouting rock bolt centering of falling three-pawl type supporting structure according to claim 1, it is characterised in that: described
The length of first connecting rod (5) is 2 times of second connecting rod (7) length, and first connecting rod (5), second connecting rod (7) and the first centering branch
Angle between frame (4), the second centering bracket (11) and third centering bracket (10) is all 30 °.
3. a kind of hole grouting rock bolt centering of falling three-pawl type supporting structure according to claim 1, it is characterised in that: described
First centering bracket (4), the second centering bracket (11) and third centering bracket (10) and the angle of anchor pole (3) bracket are also
30 °, and the angle between the first centering bracket (4), the second centering bracket (11) and third centering bracket (10) is all 120 °.
4. a kind of hole grouting rock bolt centering of falling three-pawl type supporting structure according to claim 1, it is characterised in that: described
Angle between inverted triangle bracket (6) and the first centering bracket (4), the second centering bracket (11) and third centering bracket (10)
It is all 30 °, and inverted triangle bracket (6) obtuse angle catercorner length accounts for the first centering bracket (4), the second centering bracket (11) and
The one third of three centering bracket (10) length.
5. a kind of hole grouting rock bolt centering of falling three-pawl type supporting structure according to claim 1, it is characterised in that: described
The first centering bracket (4), the second centering bracket (11) and the third centering bracket (10) welded at anchor pole (3) same section is made
It is one group, and the distance between every group is 1.5-2m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821397794.XU CN209066427U (en) | 2018-08-29 | 2018-08-29 | A kind of hole grouting rock bolt centering of falling three-pawl type supporting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821397794.XU CN209066427U (en) | 2018-08-29 | 2018-08-29 | A kind of hole grouting rock bolt centering of falling three-pawl type supporting structure |
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| Publication Number | Publication Date |
|---|---|
| CN209066427U true CN209066427U (en) | 2019-07-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821397794.XU Active CN209066427U (en) | 2018-08-29 | 2018-08-29 | A kind of hole grouting rock bolt centering of falling three-pawl type supporting structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108716217A (en) * | 2018-08-29 | 2018-10-30 | 兰州大学 | A kind of hole grouting rock bolt centering of falling three-pawl type supporting structure |
| CN113668523A (en) * | 2021-08-30 | 2021-11-19 | 中国建筑第八工程局有限公司 | Claw anchor type anchor rod suitable for geotechnical engineering and construction method thereof |
-
2018
- 2018-08-29 CN CN201821397794.XU patent/CN209066427U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108716217A (en) * | 2018-08-29 | 2018-10-30 | 兰州大学 | A kind of hole grouting rock bolt centering of falling three-pawl type supporting structure |
| CN108716217B (en) * | 2018-08-29 | 2024-02-20 | 兰州大学 | Inverted three-jaw centering support structure for hole mortar anchor rod |
| CN113668523A (en) * | 2021-08-30 | 2021-11-19 | 中国建筑第八工程局有限公司 | Claw anchor type anchor rod suitable for geotechnical engineering and construction method thereof |
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