CN204140106U - The meticulous explosion grouted anchor bar of a kind of controlling - Google Patents
The meticulous explosion grouted anchor bar of a kind of controlling Download PDFInfo
- Publication number
- CN204140106U CN204140106U CN201420442454.XU CN201420442454U CN204140106U CN 204140106 U CN204140106 U CN 204140106U CN 201420442454 U CN201420442454 U CN 201420442454U CN 204140106 U CN204140106 U CN 204140106U
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- CN
- China
- Prior art keywords
- rod body
- anchor rod
- detonator
- positioning ring
- collar
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Abstract
The meticulous explosion grouted anchor bar of a kind of controlling, comprise anchor rod body, stop grouting plug, detonator positioning ring group and the buffering collar, anchor rod body is tubular structure and upper end closed, and the surface of anchor rod body is provided with screw thread, described anchor rod body surface has injected hole, and injected hole communicates with anchor rod body inside.Described stop grouting plug, detonator positioning ring group and the buffering collar are all enclosed within the outer wall of anchor rod body, and anchor rod body is successively through stop grouting plug, detonator positioning ring group and the buffering collar, and stop grouting plug lower end is provided with pallet, and hold-down nut is equipped with in pallet lower end.This grouted anchor bar has very good effect for the control of concussion of blasting, carries out layout by detonator positioning ring group to detonator, and farthest near wall-rock crack, the destruction of concussion of blasting to anchor pole and country rock hole wall can drop to minimum by buffer.While being opened by initial fissure be conducive to slip casting by meticulous explosion, farthest protect anchor pole.
Description
Technical field
The utility model relates to a kind of grouted anchor bar, is specifically related to the meticulous explosion grouted anchor bar of a kind of controlling.
Background technology
In underground construction, adopt grouted anchor bar supporting to be the integrality, the stability that keep country rock on one's own initiative, deformation controlling for rock surrounding gateways, displacement and crack development, give full play to the supporting role of country rock self.In underground engineering support, often there is a large amount of wall-rock crack and to grow but crack is very small, adopt common slurries at all cannot slip casting, and very high without the chemical grout cost of graininess, the also underground environment such as underground water, soil of severe contamination.
Therefore, for cranny development country rock, domesticly substantially cannot use grouted anchor bar on a large scale at present, a part adopts explosion reaming to realize the anchor pole of slip casting, this type of anchor pole, concentrating while violent explosion, brings the concussion of blasting of high strength, the heavy damage integrality of anchor pole self and rock mass hole wall, anchor pole normally cannot be worked, reduce its supporting intensity.In grouted anchor bar, adopt the supporting of explosion means realization to tunnel, the control of concussion of blasting needs to solve.
Utility model content
The purpose of this utility model is to propose the meticulous explosion grouted anchor bar of a kind of novel controlling, this grouted anchor bar has good action effect for the control of concussion of blasting, by making it farthest near country rock to the layout of detonator and adjustment position thereof, buffer being set the destruction of concussion of blasting to anchor pole and country rock hole wall is dropped to minimum.While initial fissure to be opened by meticulous explosion and is conducive to slip casting by guarantee, farthest protect anchor pole, be mainly used in the surrounding rock supporting that in the underground construction such as mine engineering, construction of tunnel, crack is comparatively grown.
To achieve these goals, the technical solution of employing is the utility model:
The meticulous explosion grouted anchor bar of a kind of controlling, comprise anchor rod body, stop grouting plug, detonator positioning ring group and the buffering collar, described anchor rod body is tubular structure, and anchor rod body upper end closed, the external surface of anchor rod body is provided with screw thread, described anchor rod body surface has injected hole, and injected hole communicates with anchor rod body inside; Described stop grouting plug, detonator positioning ring group and the buffering collar are all enclosed within the outer wall of anchor rod body, and anchor rod body is successively through stop grouting plug, detonator positioning ring group and the buffering collar; Detonator positioning ring group has 3 at least, injected hole is had between adjacent two detonator positioning ring groups, described detonator positioning ring group is made up of two positioning rings, the end face that described two positioning rings have detonator putting hole is staggered relatively and leave gap, positioning sleeve Ring current distribution is provided with installing hole, and detonator positioning ring group is contained on anchor rod body by installing hole; An end face of described positioning ring is provided with symmetrical detonator putting hole, it is characterized in that: the position between described detonator putting hole and installing hole has hollow buffer groove, described hollow buffer groove is circulus and coaxial with installing hole, have pressure relief vent in described hollow buffer groove, described pressure relief vent extends to another end face of positioning ring.
Preferably, described each positioning ring has two pressure relief vents, and described pressure relief vent is symmetricly set in hollow buffer groove.
Preferably, described cushion collar ring set is on anchor rod body top, and the described buffering collar is round table-like and center is provided with installing hole, and the side of the buffering collar has two parallel grooves, and described groove closes around the side of the buffering collar, and described groove is recessed to installing hole.
Preferably, described stop grouting plug is positioned at the below of detonator positioning ring group, and the lower end of stop grouting plug is provided with pallet, and described tray sleeve is on anchor rod body, and the anchor rod body on the left of pallet is furnished with hold-down nut.
Preferably, described stop grouting plug is circular cone structure, and described stop grouting plug is provided with two symmetrical relief tubes, and the axis of described relief tube and the axis being parallel of rubber cock body, described relief tube upper and lower side all stretches out in rubber cock body.
Preferably, described relief tube top is provided with the caulking gum collar, the described caulking gum collar opens two symmetrical circular hole, described two relief tubes are each passed through two circular holes of the caulking gum collar, the caulking gum collar is made up of at least 6 identical rubber rings, and adjacent two rubber rings are equidistant.
Preferably, described relief tube stretches out tray surface near one end of hold-down nut and is connected with clamp nut, and the release pipe box between described clamp nut and pallet has rubber spacer.
By adopting preceding solution, Advantageous Effects of the present utility model is: be positioned in country rock hole wall by meticulous for controlling explosion grouted anchor bar, light detonator big gun line to ignite, in ignition process, because the bottom buffering collar is for the fixing cushioning effect of rubber neck, bottom maximum fixing anchor bar and the junction of anchor pole and country rock can not be destroyed, and the control of empty space section to concussion of blasting in the middle of positioning ring serves good effect.Detonator positioning ring group can move when installing detonator, to fix detonator, detonator hole arranges in the outer part and centre is provided with hollow buffer groove, at utmost close to country rock away from the body of rod, both ensured also to ensure to drop to minimum to the concussion of blasting of the body of rod to the meticulous explosion of country rock, pressure relief vent wherein also can discharge certain pressure by enclosure space by breeching line simultaneously.Arrange cavity in the middle part of stop grouting plug and place relief tube, relief tube outer wall is provided with the caulking gum collar, according to Soil Anchor Design, sets relief tube, the interval of rubber neck and width, makes its closed hole wall country rock, do not make slurries outflow.Be provided with screwed hole at pallet place to connect relief tube, between relief tube and pallet, junction is provided with rubber spacer, to play sealing process.After explosion completes, by relief tube shutoff, carry out slip casting, achieve segmenting slip casting by detonator positioning ring group, top cushion rubber neck, while ensure that slip casting effect, also enhance the resistance to compression of anchor pole and the performance of shearing resistance.
Accompanying drawing explanation
Fig. 1 is the structural representation of the meticulous explosion grouted anchor bar of a kind of controlling.
Fig. 2 is the structural representation of positioning ring.
Fig. 3 is the structural representation of stop grouting plug.
Fig. 4 is the sectional view of the buffering collar.
Fig. 5 is the lateral view of Fig. 3.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in detail:
Composition graphs 1 to Fig. 5, the meticulous explosion grouted anchor bar of a kind of controlling, comprise anchor rod body 1, stop grouting plug 2, detonator positioning ring group 3 and the buffering collar 4, described anchor rod body 1 is tubular structure, and the upper end closed of anchor rod body 1, the surface of anchor rod body 1 is provided with screw thread, and described anchor rod body 1 surface has injected hole 5, and described injected hole 5 communicates with anchor rod body 1 inside; Described stop grouting plug 2, detonator positioning ring group 3 and the buffering collar 4 are all enclosed within the outer wall of anchor rod body 1, and anchor rod body 1 is successively through stop grouting plug 2, detonator positioning ring group 3 and the buffering collar 4.
Detonator positioning ring group 3 has 3 at least, injected hole 5 is had between adjacent two detonator positioning ring groups 3, described detonator positioning ring group 3 is made up of two positioning rings 11, the end face that described two positioning rings 11 have detonator putting hole 6 is staggered relatively and leave gap, the center of positioning ring 11 is provided with installing hole 10, and detonator positioning ring group 3 is contained on anchor rod body 1 by installing hole 10; An end face of described positioning ring 11 is provided with symmetrical detonator putting hole 6, position between described detonator putting hole 6 and installing hole 10 has hollow buffer groove 8, described hollow buffer groove 8 is circulus and coaxial with installing hole 10, have pressure relief vent 7 in described hollow buffer groove 8, described pressure relief vent 7 extends to another end face of positioning ring 11.
Described each detonator positioning ring group 3 is made up of two positioning rings 11, the end face that two positioning rings 11 of each detonator positioning ring group 3 have detonator putting hole 6 is staggered relatively and leave spacing, detonator 16 is arranged between two positioning rings 11 staggered relatively, detonator putting hole 6 is inserted in one end of described detonator 16, and the other end of detonator 16 inserts the detonator putting hole 6 of the corresponding positioning ring 11 placed with it.Detonator couples together through pressure relief vent 7 by the big gun line of described detonator 16.
The buffering collar 4 is enclosed within anchor rod body 1 top, and the described buffering collar 4 is for round table-like and center is provided with installing hole 10, and the side of the buffering collar 4 has two parallel grooves 18, and described groove 18 closes around the side of the buffering collar 4, and groove 18 is recessed to installing hole 10.Described stop grouting plug 2 is positioned at the left side of detonator positioning ring group 3, and the left end face of stop grouting plug 2 is provided with pallet 14, and described pallet 14 is enclosed within anchor rod body 1, and the anchor rod body 1 on the left of pallet 14 is furnished with hold-down nut 13.Described stop grouting plug 2 is circular cone structure, and described stop grouting plug 2 is provided with two symmetrical relief tubes 12, the axis of described relief tube 12 and the axis being parallel of stop grouting plug 2, and described relief tube 12 upper and lower side all stretches out in stop grouting plug.The top of described relief tube 12 is provided with the caulking gum collar 9, and the described caulking gum collar 9 being opened two has symmetrical circular hole 15, and described two relief tubes 12 are each passed through two circular holes 15 of the caulking gum collar 9.The caulking gum collar 9 by least six certain thickness and identical rubber ring form, adjacent rubber ring is according to the top being set in qually spaced in relief tube 12.Described relief tube 12 stretches out pallet 14 surface near one end of hold-down nut 13 is connected with clamp nut 20, and the release pipe box between described clamp nut 13 and pallet 14 has rubber spacer 17.
Meticulous for controlling explosion grouted anchor bar is positioned in country rock hole wall; fixed by resin explosive roll anchor rod body 1 top; tighten hold-down nut 13; make pallet 14 compress stop grouting plug 2 country rock hole is closed; open relief tube 12; light detonator big gun line to ignite; in ignition process; because the rubber buffer collar 4 pairs of anchor pole entirety on anchor rod body 1 top play reinforcement effect and cushioning effect; the top of maximum protection anchor rod body 1 and the junction of anchor pole and country rock can not be destroyed, and the middle control of empty space section to concussion of blasting serves good effect.Detonator positioning ring group 3 can move axially by anchor rod body 1 when installing detonator, to fix detonator 16, detonator putting hole 6 arranges near country rock hole wall, and be provided with hollow buffer groove 8 between detonator putting hole 6 and installing hole 10, make explosion at utmost close to wall-rock crack 19 away from anchor rod body 1, both ensured the meticulous explosion to wall-rock crack 19, and also made to drop to minimum to the concussion of blasting of anchor rod body 1.Meanwhile, detonator 16 couples together by pressure relief vent 12 by big gun line, also can discharge certain pressure by enclosure space.Arrange relief tube 12 in the middle part of stop grouting plug 2, relief tube 12 top is provided with the caulking gum collar 9, according to the design of anchor pole, sets relief tube 12, the interval of the caulking gum collar 9 and width, makes its closed hole wall country rock, do not make slurries outflow.Be provided with screwed hole at pallet 14 place to connect relief tube 12, between relief tube 12 and pallet 14, junction is provided with rubber spacer 17, to play sealing process.After explosion completes, the width along crack 19 and the degree of depth can be expanded as, inserted its shutoff in relief tube 12 by rubber stopper, slip casting is carried out afterwards by the injected hole 5 of anchor rod body 1, segmenting slip casting is achieved by detonator positioning ring group 3 and the top cushion collar 4, ensure that the slip casting effect in wall-rock crack 19, also enhance the resistance to compression of grouted anchor bar, shear behavior.
Certainly; above-mentioned explanation is not to restriction of the present utility model; the utility model is also not limited in above-mentioned citing, the change that those skilled in the art make in essential scope of the present utility model, remodeling, interpolation or replacement, also should belong to protection domain of the present utility model.
Claims (7)
1. the meticulous explosion grouted anchor bar of controlling, comprise anchor rod body, stop grouting plug, detonator positioning ring group and the buffering collar, it is characterized in that: described anchor rod body is tubular structure, and anchor rod body upper end closed, the external surface of anchor rod body is provided with screw thread, described anchor rod body surface has injected hole, and injected hole communicates with anchor rod body inside; Described stop grouting plug, detonator positioning ring group and the buffering collar are all enclosed within the outer wall of anchor rod body, and anchor rod body is successively through stop grouting plug, detonator positioning ring group and the buffering collar; Detonator positioning ring group has 3 at least, injected hole is had between adjacent two detonator positioning ring groups, described detonator positioning ring group is made up of two positioning rings, the end face that described two positioning rings have detonator putting hole is staggered relatively and leave gap, positioning sleeve Ring current distribution is provided with installing hole, and detonator positioning ring group is contained on anchor rod body by installing hole; An end face of described positioning ring is provided with symmetrical detonator putting hole, position between described detonator putting hole and installing hole has hollow buffer groove, described hollow buffer groove is circulus and coaxial with installing hole, have pressure relief vent in described hollow buffer groove, described pressure relief vent extends to another end face of positioning ring.
2. the meticulous explosion grouted anchor bar of a kind of controlling according to claim 1, is characterized in that: described each positioning ring has two pressure relief vents, and described pressure relief vent is symmetricly set in hollow buffer groove.
3. the meticulous explosion grouted anchor bar of a kind of controlling according to claim 1, it is characterized in that: described cushion collar ring set is on anchor rod body top, described buffering collar center is provided with installing hole, the side of the buffering collar has two parallel grooves, described groove closes around the side of the buffering collar, and described groove is recessed to installing hole.
4. the meticulous explosion grouted anchor bar of a kind of controlling according to claim 1, it is characterized in that: described stop grouting plug is positioned at the below of detonator positioning ring group, the below of stop grouting plug is provided with pallet, and described tray sleeve is on anchor rod body, and the anchor rod body of pallet lower end is furnished with hold-down nut.
5. the meticulous explosion grouted anchor bar of a kind of controlling according to claim 1 or 4, it is characterized in that: described stop grouting plug is frustum cone structure, described stop grouting plug is provided with two symmetrical relief tubes, the axis of described relief tube and the axis being parallel of rubber cock body, described relief tube upper and lower side all stretches out in rubber cock body.
6. the meticulous explosion grouted anchor bar of a kind of controlling according to claim 5, it is characterized in that: described relief tube top is furnished with the caulking gum collar, the described caulking gum collar opens two symmetrical circular hole, described two relief tubes are each passed through two circular holes of the caulking gum collar, the caulking gum collar is made up of at least 6 identical rubber rings, and adjacent two rubber rings are equidistant.
7. the meticulous explosion grouted anchor bar of a kind of controlling according to claim 5, it is characterized in that: described relief tube stretches out tray surface near one end of hold-down nut and is connected with clamp nut, the release pipe box between described clamp nut and pallet has rubber spacer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420442454.XU CN204140106U (en) | 2014-08-07 | 2014-08-07 | The meticulous explosion grouted anchor bar of a kind of controlling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420442454.XU CN204140106U (en) | 2014-08-07 | 2014-08-07 | The meticulous explosion grouted anchor bar of a kind of controlling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204140106U true CN204140106U (en) | 2015-02-04 |
Family
ID=52416799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420442454.XU Expired - Fee Related CN204140106U (en) | 2014-08-07 | 2014-08-07 | The meticulous explosion grouted anchor bar of a kind of controlling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204140106U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104895583A (en) * | 2015-04-28 | 2015-09-09 | 河南理工大学 | Tunnel surrounding rock control technology combining pressure relief and slip-casting reinforcement |
| CN105604593A (en) * | 2016-03-17 | 2016-05-25 | 天津大学 | Three-stage anchoring combined type hollow grouting anchor rod |
| CN110424388A (en) * | 2019-08-08 | 2019-11-08 | 重庆地质矿产研究院 | Shock-resistant modular anchoring device |
-
2014
- 2014-08-07 CN CN201420442454.XU patent/CN204140106U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104895583A (en) * | 2015-04-28 | 2015-09-09 | 河南理工大学 | Tunnel surrounding rock control technology combining pressure relief and slip-casting reinforcement |
| CN105604593A (en) * | 2016-03-17 | 2016-05-25 | 天津大学 | Three-stage anchoring combined type hollow grouting anchor rod |
| CN105604593B (en) * | 2016-03-17 | 2018-05-04 | 天津大学 | A kind of three stages anchoring Combined hollow grouted anchor bar |
| CN110424388A (en) * | 2019-08-08 | 2019-11-08 | 重庆地质矿产研究院 | Shock-resistant modular anchoring device |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150204 Termination date: 20170807 |