CN206052644U - A kind of deep hole grouting rock bolt circular arc type centering supporting structure - Google Patents
A kind of deep hole grouting rock bolt circular arc type centering supporting structure Download PDFInfo
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- CN206052644U CN206052644U CN201621010046.2U CN201621010046U CN206052644U CN 206052644 U CN206052644 U CN 206052644U CN 201621010046 U CN201621010046 U CN 201621010046U CN 206052644 U CN206052644 U CN 206052644U
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- anchor pole
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- height trestle
- circular arc
- arc type
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Abstract
The utility model discloses a kind of deep hole grouting rock bolt circular arc type centering supporting structure, it be included in arrange on the outer wall of anchor pole (3) to medium-height trestle (5), this pair of medium-height trestle (5) is with circular arc type support made by reinforcing bar, this pair of medium-height trestle (5) is made up of two cross bars (7) at two ends and the arc section (8) at middle part, the cross bar (7) at two ends is welded to connect on the outer wall of anchor pole (3), and the arc section (8) at middle part outwards arches upward to form outer support structure.This utility model is by welding a kind of arc support of support anchors on anchor pole, reach anchor pole purpose placed in the middle in hole, it 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, anchor pole can be made straight in petrosal foramen, mortar can uniformly wrap up anchor pole, improve the stress condition of anchor pole, improve anchoring effect.This utility model structural shape is simple, easy construction, strong applicability, with preferable economic advantages.
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 circular arc 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 circular arc type centering supporting structure.
This utility model is achieved by following technical solution：
A kind of deep hole grouting rock bolt circular arc 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 circular arc type made by reinforcing bar
Frame, this pair of medium-height trestle are made up of two cross bars at two ends and the arc section at middle part, and the cross bar at two ends is welded to connect in the outer of anchor pole
On wall, the arc section at middle part outwards arches upward to form outer support structure.
On anchor pole every 2～4m one group of spacing interval setting to medium-height trestle.
On anchor pole per three to medium-height trestle constitute one group, with three between group between medium-height trestle with anchor pole as collar
To being uniformly arranged, in same group, any two is 120 ° to the spacing angle of medium-height trestle.
Two cross bars are fixedly connected on anchor pole by weld part, and arc section is flared outwardly to create the outer support structure of arch.
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, to medium-height trestle, 6- weld parts, 7- are horizontal for 5-
Bar, 8- arc sections.
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, this pair of medium-height trestle 5 is with circular arc type support made by reinforcing bar, this pair of medium-height trestle 5 two by two ends
The arc section 8 at cross bar 7 and middle part is constituted, and the cross bar 7 at two ends is welded to connect on the outer wall of anchor pole 3, and the arc section 8 at middle part is outside
Arch upward to form outer support structure.In addition, the plan-position of two cross bars 7 is on a line.
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 unsuitable long, the 5cm～10cm length of 7 length of cross bar on medium-height trestle 5, centering
The bending arc radius of arc section 8 of support 5 should be less than 2 radius of bolthole.When 3. welding, should be with anchor to 5 circular arc direction of medium-height trestle
3 direction of insertion of bar is consistent, can so prevent medium-height trestle 5 is blocked by crag.4. be readily bent I grade of steel is preferably used to medium-height trestle 5
Muscle makes, and bar diameter 8mm or so is 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 circular arc 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 with circular arc type support made by reinforcing bar, two piece cross bars (7) and the arc section at middle part of this pair of medium-height trestle (5) by two ends
(8) constitute, the cross bar (7) at two ends is welded to connect on the outer wall of anchor pole (3), the arc section (8) at middle part outwards arches upward to form outer
Support structure.
2. deep hole grouting rock bolt circular arc 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 circular arc 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, with three between group to being collar to equal with anchor pole (3) between medium-height trestle (5)
Cloth is arranged, and in same group, any two is 120 ° to the spacing angle of medium-height trestle (5).
4. deep hole grouting rock bolt circular arc type centering supporting structure according to claim 1, it is characterised in that：Two cross bars
(7) it is fixedly connected on anchor pole (3) by weld part (6), arc section (8) is flared outwardly to create the outer support structure of arch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621010046.2U CN206052644U (en) | 2016-08-31 | 2016-08-31 | A kind of deep hole grouting rock bolt circular arc type centering supporting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621010046.2U CN206052644U (en) | 2016-08-31 | 2016-08-31 | A kind of deep hole grouting rock bolt circular arc type centering supporting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206052644U true CN206052644U (en) | 2017-03-29 |
Family
ID=58373509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621010046.2U Active CN206052644U (en) | 2016-08-31 | 2016-08-31 | A kind of deep hole grouting rock bolt circular arc type centering supporting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206052644U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109853546A (en) * | 2019-03-29 | 2019-06-07 | 华侨大学 | Assembled centering bracket and the anchor pole for using the centering bracket |
| CN110219300A (en) * | 2019-05-27 | 2019-09-10 | 北京建材地质工程有限公司 | The construction technology of part adhesive prepared pulling-resistant anchor rod |
-
2016
- 2016-08-31 CN CN201621010046.2U patent/CN206052644U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109853546A (en) * | 2019-03-29 | 2019-06-07 | 华侨大学 | Assembled centering bracket and the anchor pole for using the centering bracket |
| CN109853546B (en) * | 2019-03-29 | 2024-02-23 | 华侨大学 | Assembled centering support and anchor rod adopting same |
| CN110219300A (en) * | 2019-05-27 | 2019-09-10 | 北京建材地质工程有限公司 | The construction technology of part adhesive prepared pulling-resistant anchor rod |
| CN110219300B (en) * | 2019-05-27 | 2021-07-02 | 北京建材地质工程有限公司 | Construction process of partially-bonded prestressed uplift anchor rod |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190705 Address after: 550081 Xingshan Lake District, Guiyang, Guizhou Province, No. 16 Co-patentee after: Huaneng Group Lancang River hydropower limited company Patentee after: China Kweiyang survey and design research institute company limited of electricity Jian group Co-patentee after: Huaneng Group Technology Innovation Center Co., Ltd. Address before: 550025 Xingshan Lake District, Guiyang, Guizhou Province, No. 16 Patentee before: China Kweiyang survey and design research institute company limited of electricity Jian group |