CN206052643U - Deep hole mortar anchor rod crotch type centering supporting structure - Google Patents
Deep hole mortar anchor rod crotch type centering supporting structure Download PDFInfo
- Publication number
- CN206052643U CN206052643U CN201621009900.3U CN201621009900U CN206052643U CN 206052643 U CN206052643 U CN 206052643U CN 201621009900 U CN201621009900 U CN 201621009900U CN 206052643 U CN206052643 U CN 206052643U
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- stock
- anchor pole
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- centering
- height trestle
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- 230000008093 supporting effect Effects 0.000 title claims abstract description 10
- 239000004570 mortar (masonry) Substances 0.000 title abstract description 18
- 239000011435 rock Substances 0.000 claims abstract description 15
- 238000003466 welding Methods 0.000 claims abstract description 6
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 3
- 230000000694 effects Effects 0.000 abstract description 5
- 238000005452 bending Methods 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 206010057071 Rectal tenesmus Diseases 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000010412 perfusion Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 208000012271 tenesmus Diseases 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Piles And Underground Anchors (AREA)
Abstract
The utility model discloses a deep hole mortar stock crotch type centering supporting structure, this structure is arranged in fixing anchor rod hole (2) on side slope (1) with stock (3) centering, and it includes centering support (5) that set up on the outer wall of stock (3), and this centering support (5) are the crotch type support of making with the reinforcing bar, and this centering support (5) welded connection is on the outer wall of stock (3) and forms the outer stay structure. The utility model discloses a welding the arc support of a support stock on the stock, reaching the stock in downthehole purpose placed in the middle, effectually prevented that long stock from the rock bore limit wall is hugged closely in the bending deformation under the dead weight effect, through setting up the centering support, can make the stock in the rock bore in the same direction as straight, the mortar can be even parcel stock, has improved the atress condition of stock, has improved the anchor effect. The utility model discloses structural style is simple, construction convenience, and the suitability is strong, has better economic advantage.
Description
Technical field
This utility model is related to Hydraulic and Hydro-Power Engineering technical field, more particularly, to a kind of deep hole grouting rock bolt hook type pair
Medium-height trestle structure.
Background technology
In the engineering slope stabilization and reinforcement of water conservancy and hydropower station, grouting rock bolt is a kind of more universal support pattern, general to unite
Grouting rock bolt installs anchor pole (3) in hole (2) as shown in figure 1, its technical scheme is mainly drills (2) in side slope (1),
Mortar is filled between hole (2) and anchor pole (3) in cavity, mortar is the power transmission medium between anchor pole and side slope.The stress of anchor pole is
Mortar is delivered load to by side slope, mortar passes to anchor pole, after rockbolt stress, resistance is passed to into mortar again, mortar is again
Side slope is passed to, and the purpose for reaching bolt anchorage side slope is circulated by this, so, the stressed effect and mortar chymoplasm of anchor pole
Can amount, be to ensure the key that play one's part to the full of anchor pole.When rock-bolt length is longer, under the Gravitative Loads of anchor pole, anchor pole
Curved state (as shown in Figure 1), the anchor pole back segment body of rod can be contacted with hole wall, and now, mortar is difficult to fully wrap up anchor pole, anchor
Bar stress is poor, reduces significantly the supporting effect of anchor pole, it is also possible to cause slope instability.
Utility model content
The purpose of this utility model be in order to solve rock-bolt length it is longer when as Gravitative Loads cause anchor pole in bolthole
In curved state cause the anchor pole back segment body of rod to contact with hole wall, the problem for making mortar be difficult to fully wrap up anchor pole, there is provided
Plant deep hole grouting rock bolt hook type centering supporting structure.
This utility model is achieved by following technical solution:
A kind of deep hole grouting rock bolt hook type centering supporting structure, the structure is for anchor pole centering is fixed in side slope
In bolthole, it be included in arrange on the outer wall of anchor pole to medium-height trestle, this pair of medium-height trestle is with hook type made by reinforcing bar
Frame, this pair of medium-height trestle are welded to connect on the outer wall of anchor pole and form outer support structure.
On anchor pole every 2~4m one group of spacing interval setting to medium-height trestle.
One group is constituted to medium-height trestle per three on anchor pole, three to being collar to laying with anchor pole between medium-height trestle
Put, in same group, any two is 120 ° to the spacing angle of medium-height trestle.
The arc section to medium-height trestle by long transverse lever and hyphen bar and therebetween is constituted;Wherein long transverse lever is by weldering
Socket part is fixedly connected on anchor pole, and hyphen bar and arc section are flared outwardly to create outer support structure.
The beneficial effects of the utility model:This utility model is by welding a kind of arc of support anchors on anchor pole
Frame, reaches anchor pole purpose placed in the middle in hole, is effectively prevented the flexural deformation under Gravitative Loads of long anchor pole and is close to petrosal foramen side
Wall, by arranging to medium-height trestle, can make anchor pole straight in petrosal foramen, and mortar can uniformly wrap up anchor pole, improve anchor pole
Stress condition, improves anchoring effect.This utility model structural shape is simple, easy construction, strong applicability, with preferable Jing
Ji advantage.
Description of the drawings
Fig. 1 is the existing deep hole grouting rock bolt schematic diagram without centering structure;
Fig. 2 is deep hole grouting rock bolt schematic diagram of the setting of the present utility model to medium-height trestle;
Fig. 3 is the part A drawing in Fig. 2;
Fig. 4 is the a-a sectional views in Fig. 3;
Fig. 5 is of the present utility model to medium-height trestle drawing.
Description of reference numerals:1- side slopes, 2- boltholes, 3- anchor poles, 4- mortars, 5- is to medium-height trestle, 6- weld parts, 7- hyphens
Bar, 8- arc sections, 9- long transverse levers.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples.
Referring initially to Fig. 1, Fig. 1 illustrates the existing deep hole grouting rock bolt schematic diagram without centering structure;It can be seen that
As anchor pole 3 is not provided with centering structure, after the bolthole 2 in the insertion side slope 1 of anchor pole 3, due to effect of weight, after anchor pole 3
Half section can nature to tenesmus, cause the bending of anchor pole 2, make mortar 4 be difficult to completely envelope anchor pole 2, so as to dotted line in FIG
The B areas of frame scope form the poor area of rockbolt stress.
In view of the foregoing, this utility model has carried out such improvement, as shown in Fig. 2 in bolthole 2, along anchor
The trend of bar 3, just arranges one group to medium-height trestle 5 at interval of a segment distance, by the outer support structure to medium-height trestle 5, makes anchor pole 3 exist
It is fixed in bolthole 2, then passes through mortar 4 again to anchor pole 3 and medium-height trestle 5 is coated, reliably receive so as to be formed
Power structure.
As shown in figure 3, it is of the present utility model it is this medium-height trestle 5 is welded on anchor pole 3 by weld part 6, and formed
Outer support structure.As shown in figure 4, this pair of medium-height trestle 5 constitutes one group per three, three equal in ring by axle of anchor pole 3 to medium-height trestle 5
Cloth, interval angles are 120 ° two-by-two.The maximum outside diameter of its outer support structure is slightly less than the internal diameter of bolthole 2, then will by mortar 4
This pair of medium-height trestle 5 and anchor pole 3 fill closely knit together.
As shown in figure 5, the arc section 8 to medium-height trestle 5 by long transverse lever 9 and hyphen bar 7 and therebetween is constituted;It is wherein long
Cross bar 9 is fixedly connected on anchor pole 3 by weld part 6, and hyphen bar 7 and arc section 8 are flared outwardly to create outer support structure.
This utility model is implemented:
As shown in Fig. 2 first, the drilling in side slope 1 forms bolthole 2, is made to medium-height trestle using bar bending welding
5, medium-height trestle 5 will be welded on anchor pole 3 by weld part 6 and be squeezed in bolthole 2, then perfusion mortar 4 is closed.
Petrosal foramen is inserted smoothly for the ease of anchor pole 3, to the construction of medium-height trestle 5 it should be noted that problems with:1. to medium-height trestle 5 and anchor
The body of rod radius that bar 3 is formed after welding need to be less than 2 radius of bolthole.2. it is to reduce to the frictional force between medium-height trestle 5 and crag, right
Medium-height trestle 5 should be in support structure outside circular arc, to the hyphen bar 7 on medium-height trestle 5 and unsuitable long, the 5cm~10cm of 9 length of long transverse lever
It is long, 2 radius of bolthole should be less than to the bending arc radius of arc section 8 of medium-height trestle 5.When 3. welding, to 5 circular arc of medium-height trestle
Direction should be consistent with 3 direction of insertion of anchor pole, can so prevent medium-height trestle 5 is blocked by crag.4. medium-height trestle 5 is preferably used and is easy to curved
I grade of bent reinforcement fabrication, bar diameter 8mm or so are advisable, its stiffness energy support anchors weight.
The patterns such as dowel beam of the anchor pole of the present utility model 3 comprising 3 or many compositions of anchor pole 3 of single anchor rod.
Certainly, it is more than concrete application example of the present utility model, this utility model also has other embodiments, all
The technical scheme formed using equivalent or equivalent transformation, is all fallen within the protection domain required by this utility model.
Claims (4)
1. a kind of deep hole grouting rock bolt hook type centering supporting structure, the structure is for being fixed on side slope (1) by anchor pole (3) centering
On bolthole (2) in, it is characterised in that:It is included in arrange on the outer wall of anchor pole (3) to medium-height trestle (5), the centering
Frame (5) is that with hook type support made by reinforcing bar, this pair of medium-height trestle (5) is welded to connect on the outer wall of anchor pole (3) and forms outer
Support structure.
2. deep hole grouting rock bolt hook type centering supporting structure according to claim 1, it is characterised in that:In anchor pole (3)
On every 2~4m one group of spacing interval setting to medium-height trestle (5).
3. deep hole grouting rock bolt hook type centering supporting structure according to claim 2, it is characterised in that:In anchor pole (3)
On one group is constituted to medium-height trestle (5) per three, three to being collar to being uniformly arranged with anchor pole (3) between medium-height trestle (5), it is same
In group, any two is 120 ° to the spacing angle of medium-height trestle (5).
4. deep hole grouting rock bolt hook type centering supporting structure according to claim 1, it is characterised in that:The centering
Arc section (8) of the frame (5) by long transverse lever (9) and hyphen bar (7) and therebetween is constituted;Wherein long transverse lever (9) is by welding
Portion (6) is fixedly connected on anchor pole (3), and hyphen bar (7) and arc section (8) are flared outwardly to create outer support structure.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201621009900.3U CN206052643U (en) | 2016-08-31 | 2016-08-31 | Deep hole mortar anchor rod crotch type centering supporting structure |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201621009900.3U CN206052643U (en) | 2016-08-31 | 2016-08-31 | Deep hole mortar anchor rod crotch type centering supporting structure |
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Publication Number | Publication Date |
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CN206052643U true CN206052643U (en) | 2017-03-29 |
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CN201621009900.3U Active CN206052643U (en) | 2016-08-31 | 2016-08-31 | Deep hole mortar anchor rod crotch type centering supporting structure |
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Cited By (1)
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 |
-
2016
- 2016-08-31 CN CN201621009900.3U patent/CN206052643U/en active Active
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 |
CN108716217B (en) * | 2018-08-29 | 2024-02-20 | 兰州大学 | Inverted three-jaw centering support structure for hole mortar anchor rod |
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