CN109184767A - Tension intumescent hollow grouting anchor structure - Google Patents
Tension intumescent hollow grouting anchor structure Download PDFInfo
- Publication number
- CN109184767A CN109184767A CN201811330891.1A CN201811330891A CN109184767A CN 109184767 A CN109184767 A CN 109184767A CN 201811330891 A CN201811330891 A CN 201811330891A CN 109184767 A CN109184767 A CN 109184767A
- Authority
- CN
- China
- Prior art keywords
- rod
- sleeve
- hollow
- slip casting
- intumescent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000007569 slipcasting Methods 0.000 claims abstract description 57
- 238000004873 anchoring Methods 0.000 claims abstract description 22
- 230000006835 compression Effects 0.000 claims abstract description 17
- 238000007906 compression Methods 0.000 claims abstract description 17
- 239000002002 slurry Substances 0.000 claims abstract description 16
- 238000005553 drilling Methods 0.000 claims abstract description 12
- 229920002472 Starch Polymers 0.000 claims abstract description 10
- 235000019698 starch Nutrition 0.000 claims abstract description 10
- 230000007246 mechanism Effects 0.000 claims description 12
- 241001149930 Protura <class> Species 0.000 claims description 6
- 239000008107 starch Substances 0.000 claims description 4
- 238000009827 uniform distribution Methods 0.000 claims description 3
- 239000011435 rock Substances 0.000 abstract description 25
- 230000003014 reinforcing effect Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 4
- 238000000605 extraction Methods 0.000 abstract description 3
- 230000002787 reinforcement Effects 0.000 abstract description 2
- 239000004568 cement Substances 0.000 description 9
- 239000000243 solution Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000002045 lasting effect Effects 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002040 relaxant effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
- E21D21/0026—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by constructional features of the bolts
- E21D21/004—Bolts held in the borehole by friction all along their length, without additional fixing means
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/74—Means for anchoring structural elements or bulkheads
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
- E21D20/02—Setting anchoring-bolts with provisions for grouting
- E21D20/021—Grouting with inorganic components, e.g. cement
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
- E21D20/02—Setting anchoring-bolts with provisions for grouting
- E21D20/028—Devices or accesories for injecting a grouting liquid in a bore-hole
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Geochemistry & Mineralogy (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Paleontology (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The present invention provides a kind of tension intumescent hollow grouting anchor structures, belong to crack rock reinforcement technique field, including the hollow slip casting body of rod and lateral compression device, hollow slip casting body of rod one end is equipped with the body of rod and only starches cap, the other end is equipped with anchoring section, the axial centre of the hollow slip casting body of rod is equipped with deflector hole, is radially provided with the injected hole being connected to deflector hole；Lateral compression device includes sleeve, multiple expanding rods and multiple circular cones, and one end of sleeve is equipped with the stifled slurry lid of drilling, and the other end is connected by elastic element with anchoring section；Multiple expanding rods are radially across the swollen hole being correspondingly arranged on sleeve；Multiple circular cones are set on the hollow slip casting body of rod, tensioning sleeve, and expanding rod slides extruding along the garden conical surface of corresponding circular cone outward.Tension intumescent hollow grouting anchor structure provided by the invention, can not only promote the density of rock mass, but also the extraction-resistant behavior of anchor pole itself can be improved, and provide a kind of effective means for tunnel and the reinforcing of the crack rock of side slope.
Description
Technical field
The invention belongs to crack rock reinforcement technique fields, are to be related to a kind of hollow note of tension intumescent more specifically
Starch anchor structure.
Background technique
In the reinforcing of tunnel surrounding and slope rock mass, anchor pole is a kind of economic, efficiently, safe reinforcing means, extensively
It is general to be applied in engineering practice.Current suspension roof support is used outside the body of rod mainly using solid spiral as the body of rod
The mode of slip casting makes slurries full of the gap between anchor pole and drilling, and slurries is allowed to penetrate into the certain range of hole wall surrounding rock body,
After grout cures, injecting cement paste holds together with anchor pole.There are significant defects for such reinforcing mode: (1) due to only leaning on
Frictional force between body of rod surface screw thread and injecting cement paste is anchored, and the contact surface of the two is limited, and anchor pole is easy from injecting cement paste
It extracts；(2) hole wall rock mass easily form relaxation zone in boring procedure, and injecting cement paste cannot effectively be close to hole wall rock mass, make anchor pole
Anchoring property cannot give full play to.Therefore, a kind of new anchor structure is invented, so that anchor pole, injecting cement paste is formed one and closely connects
Junctor promotes the anchoring property of anchor pole, has important engineering significance.
Summary of the invention
The purpose of the present invention is to provide a kind of tension intumescent hollow grouting anchor structures, to solve to deposit in the prior art
Anchor rod anchored property difference technical problem.
To achieve the above object, the technical solution adopted by the present invention is that: a kind of tension intumescent hollow grouting anchor is provided
Structure, including the hollow slip casting body of rod and lateral compression device, hollow slip casting body of rod one end are equipped with the body of rod and only starch cap, and the other end is equipped with
The axial centre of anchoring section, the hollow slip casting body of rod is equipped with deflector hole, is radially provided with the injected hole being connected to the deflector hole；
Lateral compression device includes sleeve, multiple expanding rods and multiple circular cones, and the sleeve is set in the hollow slip casting
The outside of the body of rod, and there is gap between the hollow slip casting body of rod, one end of the sleeve is equipped with the stifled slurry lid of drilling, another
One end is connected by elastic element with the anchoring section；The multiple expanding rod is distributed in the periphery of the sleeve, and radially wears
Cross the swollen hole being correspondingly arranged on the sleeve；The multiple circular cone is set on the hollow slip casting body of rod, and is located at described
In gap, multiple expanding rods are corresponding with multiple circular cones, sleeve described in tensioning, and the expanding rod is along the corresponding taper
The garden conical surface of block slides extruding outward.
Further, unidirectional slipping mechanism, the unidirectional sliding are equipped between the sleeve and the hollow slip casting body of rod
Mechanism and the stifled slurry lid of the drilling are located at the same end.
Further, the unidirectional slipping mechanism includes the limit sleeve being set in outside the hollow slip casting body of rod and is set to
The serrated slot of the sleeve lining corresponding position, by the serrated slot and the limit sleeve, the sleeve has unidirectional outside
Mobile freedom degree.
Further, it is equipped with serrated slot described in multi-turn, each circle serrated slot includes one for set described in backstop
Annular end face, a cylindrical surface being slidably matched with the sleeve outer wall and a circular cone for sleeve sliding for cylinder
Face.
Further, the same radial section of the sleeve is uniformly provided with swollen hole described in multiple groups, and swollen hole described in multiple groups is along described
The axis direction spaced set of sleeve, circular cone described in swollen hole described in every group is one corresponding divide in each described swollen hole
It She You not an expanding rod.
Further, the expanding rod is equipped with for squeezing the conehead for protruding into borehole sidewall, and institute is supported in the end of the expanding rod
When stating the outer circumference surface of the hollow slip casting body of rod, the conehead is extend into the swollen hole.
Further, the anchoring section includes the anchoring piece and wedge shaped squeeze block with tail end notch, the wedge shaped squeeze
Block is inserted into the tail end notch, and one end of the elastic element connects the wedge shaped squeeze block.
Further, the section of the wedge shaped squeeze block is triangular structure.
Further, the elastic element is spring.
Further, the injected hole is multiple, along the hollow slip casting body of rod radially same sectional uniform distribution, and position
In the junction of the anchoring section and the hollow slip casting body of rod.
The beneficial effect of tension intumescent hollow grouting anchor structure provided by the invention is: compared with prior art,
Including the hollow slip casting body of rod and lateral compression device, connect anchor pole thoroughly with injecting cement paste by the way of hollow bolt inside slip casting
For an entirety, the risk that anchor pole is extracted from injecting cement paste is reduced；Lateral squeeze is applied to hole wall rock mass by lateral compression device
Pressure promotes the density of hole wall surrounding rock body, in addition, lateral compression device can increase extruding force with rock-mass relaxing and constantly,
The lasting loosening deformation of rock mass after the completion of constructing thus can be effectively suppressed.Therefore, such anchor structure can both promote the close of rock mass
Reality, and the extraction-resistant behavior of anchor pole itself can be improved, a kind of effective means is provided for tunnel and the reinforcing of the crack rock of side slope.
Detailed description of the invention
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to embodiment or description of the prior art
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only of the invention some
Embodiment for those of ordinary skill in the art without any creative labor, can also be according to these
Attached drawing obtains other attached drawings.
Fig. 1 is the structural schematic diagram of tension intumescent hollow grouting anchor structure provided in an embodiment of the present invention；
Fig. 2 is the schematic cross-sectional view of A-A in Fig. 1；
Fig. 3 is the schematic cross-sectional view of B-B in Fig. 1；
Fig. 4 is the schematic cross-sectional view of C-C in Fig. 1；
Fig. 5 is the structural schematic diagram of unidirectional slipping mechanism used by the embodiment of the present invention.
Wherein, each appended drawing reference in figure:
The hollow slip casting body of rod of 1-；2, lateral compression device；3, the stifled slurry lid of drilling；4, the body of rod only starches cap；5, tail end notch；6,
Wedge shaped squeeze block；7, deflector hole；8, injected hole；9, elastic element；10, sleeve；11, expanding rod；12, circular cone；13, unidirectional sliding
Mechanism；14, swollen hole；15, limit sleeve；16, serrated slot.
Specific embodiment
In order to which technical problems, technical solutions and advantages to be solved are more clearly understood, tie below
Accompanying drawings and embodiments are closed, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only
To explain the present invention, it is not intended to limit the present invention.
Referring to Fig. 1, existing be illustrated tension intumescent hollow grouting anchor structure provided by the invention.The tension
Intumescent hollow grouting anchor structure, including the hollow slip casting body of rod 1 and lateral compression device 2, hollow 1 one end of the slip casting body of rod are equipped with
The body of rod only starches cap 4, and the other end is equipped with anchoring section, and the axial centre of the hollow slip casting body of rod 1 is equipped with deflector hole 7, is radially provided with and leads
The injected hole 8 that discharge orifice 7 is connected to；Lateral compression device 2 include sleeve 10, multiple expanding rods 11 and multiple circular cones 12,10 sets of sleeve
Outside loaded on the hollow slip casting body of rod 1, and there is gap between the hollow slip casting body of rod 1, one end of sleeve 10, which is equipped with, bores
The stifled slurry lid 3 in hole, the other end are connected by elastic element 9 with anchoring section；Multiple expanding rods 11 are distributed in the periphery of sleeve 10, and
Radially across the swollen hole 14 being correspondingly arranged on sleeve 10；Multiple circular cones 12 are set on the hollow slip casting body of rod 1, and are located at gap
Interior, multiple expanding rods 11 are corresponding with multiple circular cones 12, tensioning sleeve 10, and expanding rod 11 is outside along the garden conical surface of corresponding circular cone 12
Sliding squeezes.
Tension intumescent hollow grouting anchor structure provided by the invention, compared with prior art, including hollow slip casting bar
Body 1 and lateral compression device 2 make anchor pole thoroughly hold together with injecting cement paste by the way of hollow bolt inside slip casting,
Reduce the risk that anchor pole is extracted from injecting cement paste；By lateral compression device 2, sleeve 10,10 opposite hollow of sleeve are pulled out
When the slip casting body of rod 1 only starches the generation changing of the relative positions of 4 direction of cap towards the body of rod, elastic element 9 drives anchoring section to swell, meanwhile, sleeve 10 is in
The relative displacement of the empty slip casting body of rod 1 pushes expanding rod 11 to move outward, and driving expanding rod 11 squeezes out and right from the swollen hole 14 on sleeve
Hole wall rock mass apply squeezing action power, promote the density of hole wall surrounding rock body, in addition, lateral compression device 2 can be with rock mass pine
It moves and constantly increases extruding force, thus the lasting loosening deformation of rock mass after the completion of construction can be effectively suppressed.This anchor structure was both
The density of rock mass can be promoted, and the extraction-resistant behavior of anchor pole itself can be improved.
Wherein, the stifled slurry lid 3 of drilling tightens the aperture for resisting drilling, for preventing slip casting with sleeve using being threadedly coupled
Slurries are overflowed from drilling in journey；The body of rod only starches cap 4 with the hollow slip casting body of rod 1 using being threadedly coupled, for preventing slip casting from completing
Rear slurry is reversely oozed out from the hollow slip casting body of rod 1；Elongated deflector hole 7 is equipped with inside the hollow slip casting body of rod 1, bottom is equipped with circumferential direction
Injected hole 8, deflector hole 7 and circumferential injected hole 8 are interconnected, for slurries through hollow 1 injection hole of the slip casting body of rod and crack rock
In body.
After the completion of construction, when hole wall surrounding rock body persistently loosens deformation, and sleeve 10 is pushed to be displaced outwardly, it can drive lateral
Pressurizing unit 2 continues to expand, to increase lateral compression device 2 to the extruding force of hole wall rock mass, effectively inhibits the loosening of rock mass
Deformation.
A kind of tool also referring to Fig. 1 and Fig. 5, as tension intumescent hollow grouting anchor structure provided by the invention
Body embodiment is equipped with the unidirectional slipping mechanism 13 for making sleeve monodisplacement, unidirectionally between sleeve and the hollow slip casting body of rod 1
Slipping mechanism 13 and the stifled slurry lid 3 of the drilling are located at the same end.When the opposite changing of the relative positions occurs for sleeve 10 and the hollow slip casting body of rod 1,
Unidirectional 13 permission sleeves of slipping mechanism unidirectionally slide.
Fig. 1 and Fig. 5 is please referred to, a kind of specific reality as tension intumescent hollow grouting anchor structure provided by the invention
Mode is applied, unidirectional slipping mechanism 13 is corresponding with sleeve lining is set to including the limit sleeve 15 being set in outside the hollow slip casting body of rod 1
The serrated slot 16 at position, by serrated slot 16 and limit sleeve 15, sleeve has the freedom degree being unidirectionally displaced outwardly.Wherein, it limits
Set is threadedly coupled with the hollow slip casting body of rod, clamping or inserting mode are connect.
Refering to Fig. 5, as a kind of specific embodiment of tension intumescent hollow grouting anchor structure provided by the invention,
Equipped with multi-turn serrated slot 16, it is each circle serrated slot 16 include one for stop sleeve annular end face, one with sleeve outside
The cylindrical surface and a circular conical surface for sleeve sliding that wall is slidably matched.
Fig. 1 and Fig. 4 is please referred to, a kind of specific reality as tension intumescent hollow grouting anchor structure provided by the invention
Mode is applied, the same radial section of sleeve is uniformly provided with the swollen hole 14 of multiple groups, and multiple groups are swollen, and hole 14 is equidistantly set along the axis direction of sleeve
It sets, the corresponding circular cone 12 in every group of swollen hole 14, is respectively equipped with an expanding rod 11 in each is swollen hole 14.
Referring to Fig. 1, a kind of specific embodiment party as tension intumescent hollow grouting anchor structure provided by the invention
Formula, expanding rod 11 are equipped with for squeezing the conehead for protruding into borehole sidewall, and the excircle of the hollow slip casting body of rod 1 is supported in the end of expanding rod 11
When face, conehead is extend into swollen hole 14.Conehead facilitates insertion into the wall of a borehole, improves adhesive force.
Refering to fig. 1 and Fig. 2, a kind of specific implementation as tension intumescent hollow grouting anchor structure provided by the invention
Mode, anchoring section include the anchoring piece and wedge shaped squeeze block 6 with tail end notch 5, and wedge shaped squeeze block 6 is inserted into tail end notch 5,
One end of elastic element 9 connects wedge shaped squeeze block 6.Sleeve is pulled out, driving expanding rod 11 is squeezed out from the swollen hole 14 on sleeve
And squeezing action power is applied to hole wall rock mass, meanwhile, type crushing block is carved in drive, and rearwardly notch is inserted into, and makes the hollow slip casting body of rod 1
Anchoring section gradually expand outward, extend into the wall of a borehole.
Fig. 1 to Fig. 2 is please referred to, a kind of specific reality as tension intumescent hollow grouting anchor structure provided by the invention
Mode is applied, the section of wedge shaped squeeze block 6 is triangular structure.
Referring to Fig. 1, a kind of specific embodiment party as tension intumescent hollow grouting anchor structure provided by the invention
Formula, elastic element 9 are spring, and one end of spring connects wedge shaped squeeze block 6, and the other end connects sleeve.
It is specific as one kind of tension intumescent hollow grouting anchor structure provided by the invention referring to Fig. 1, Fig. 3 and Fig. 4
Embodiment, injected hole 8 be it is multiple, along the radial same sectional uniform distribution of the hollow slip casting body of rod 1, and be located at anchoring section and hollow
The junction of the slip casting body of rod 1.In the present embodiment, same section injected hole 8 be provided with three, also can be set two, four or
Five etc., meanwhile, injected hole 8 can be laid along the axis direction of the body of rod, increase the efficiency and effect of slip casting.
When using anchor structure consolidating crack provided by the invention, specific implementation steps are as follows:
It is drilled anchor hole in preset position, aperture is slightly larger than outside the anchor structure before lateral compression device 2 expands
Diameter；
The anchor structure for not generating lateral expansion is pushed into bottom hole, tensioning sleeve 10 makes 10 opposite hollow slip casting bar of sleeve
Body 1 generates relative displacement, so that wedge shaped squeeze block 6 be driven to be inserted into tail end notch 5, expands anchoring section, meanwhile, the phase of sleeve 10
It pushes expanding rod 11 circumferentially to squeeze out outward in swollen hole 14 sliding, applies lateral compression power to hole wall rock mass, be adjacent to hole to expanding rod 11
After wall rock mass, stop the tensioning to sleeve 10；
The stifled slurry lid 3 of drilling is turned, it is made to be close to the aperture of anchor hole；
Slurries are injected into the hollow slip casting body of rod 1 by deflector hole 7, after the completion of slip casting, the body of rod is tightened and only starches cap 4.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. tension intumescent hollow grouting anchor structure characterized by comprising
The hollow slip casting body of rod, one end are equipped with the body of rod and only starch cap, and the other end is equipped with anchoring section, in the axial direction of the hollow slip casting body of rod
The heart is equipped with deflector hole, is radially provided with the injected hole being connected to the deflector hole；
Lateral compression device, including sleeve, multiple expanding rods and multiple circular cones, the sleeve are set in the hollow slip casting body of rod
Outside, and there is gap between the hollow slip casting body of rod, one end of the sleeve is equipped with the stifled slurry lid of drilling, the other end
It is connected by elastic element with the anchoring section；The multiple expanding rod is distributed in the periphery of the sleeve, and radially across institute
State the swollen hole being correspondingly arranged on sleeve；The multiple circular cone is set on the hollow slip casting body of rod, and is located at the gap
Interior, multiple expanding rods are corresponding with multiple circular cones, sleeve described in tensioning, and the expanding rod is along the corresponding circular cone
The garden conical surface slides extruding outward.
2. tension intumescent hollow grouting anchor structure as described in claim 1, which is characterized in that the sleeve and it is described in
Unidirectional slipping mechanism is equipped between the empty slip casting body of rod, the unidirectional slipping mechanism and the stifled slurry lid of the drilling are located at the same end.
3. tension intumescent hollow grouting anchor structure as claimed in claim 2, which is characterized in that the unidirectional slipping mechanism
Including the limit sleeve that is set in outside the hollow slip casting body of rod and the serrated slot for being set to the sleeve lining corresponding position, by
The serrated slot and the limit sleeve, the sleeve have the freedom degree being unidirectionally displaced outwardly.
4. tension intumescent hollow grouting anchor structure as claimed in claim 3, which is characterized in that be equipped with sawtooth described in multi-turn
Slot, each circle serrated slot include that the annular end face for being used for sleeve described in backstop, one and the sleeve outer wall are sliding
The cylindrical surface of dynamic cooperation and a circular conical surface for sleeve sliding.
5. tension intumescent hollow grouting anchor structure as described in claim 1, which is characterized in that the same radial direction of sleeve
Sectional uniform is equipped with swollen hole described in multiple groups, swollen hole described in multiple groups along the sleeve axis direction spaced set, described in every group
Circular cone described in swollen hole is one corresponding is respectively equipped with the expanding rod in each described swollen hole.
6. tension intumescent hollow grouting anchor structure as described in claim 1, which is characterized in that the expanding rod is equipped with and is used for
Squeeze the conehead for protruding into borehole sidewall, when the outer circumference surface of the hollow slip casting body of rod is supported in the end of the expanding rod, the cone
Head is extend into the swollen hole.
7. tension intumescent hollow grouting anchor structure as described in claim 1, which is characterized in that the anchoring section includes tool
There are the anchoring piece and wedge shaped squeeze block of tail end notch, the wedge shaped squeeze block is inserted into the tail end notch, the elastic element
One end connect the wedge shaped squeeze block.
8. tension intumescent hollow grouting anchor structure as claimed in claim 7, which is characterized in that the wedge shaped squeeze block
Section is triangular structure.
9. tension intumescent hollow grouting anchor structure as described in claim 1, which is characterized in that the elastic element is bullet
Spring.
10. such as the described in any item tension intumescent hollow grouting anchor structures of claim 1-9, which is characterized in that the note
Starch hole be it is multiple, along the hollow slip casting body of rod radially same sectional uniform distribution, and be located at the anchoring section and hollow slip casting
The junction of the body of rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811330891.1A CN109184767B (en) | 2018-11-09 | 2018-11-09 | Tension expansion type hollow grouting anchor rod structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811330891.1A CN109184767B (en) | 2018-11-09 | 2018-11-09 | Tension expansion type hollow grouting anchor rod structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109184767A true CN109184767A (en) | 2019-01-11 |
| CN109184767B CN109184767B (en) | 2020-07-28 |
Family
ID=64938779
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811330891.1A Active CN109184767B (en) | 2018-11-09 | 2018-11-09 | Tension expansion type hollow grouting anchor rod structure |
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| CN (1) | CN109184767B (en) |
Cited By (16)
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|---|---|---|---|---|
| CN109800508A (en) * | 2019-01-22 | 2019-05-24 | 石家庄铁道大学 | The calculation method and terminal device of the empty top plate thickness at rock-socketed piles end |
| CN110056379A (en) * | 2019-04-28 | 2019-07-26 | 周艳君 | A kind of anchoring process and anchor |
| CN110159330A (en) * | 2019-06-28 | 2019-08-23 | 张亚歌 | A kind of tensioning locking anchor pole |
| CN110410123A (en) * | 2019-08-15 | 2019-11-05 | 河南理工大学 | A kind of New Coal Mine High Strength Roof Bolt Support equipment |
| CN111577358A (en) * | 2020-03-27 | 2020-08-25 | 铜陵市弘润机电有限责任公司 | Expansion anchor rod |
| CN111593763A (en) * | 2020-06-01 | 2020-08-28 | 武汉雅思达科技有限公司 | Fixing device for mounting underground pipe gallery and using method thereof |
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| CN112296679A (en) * | 2019-07-31 | 2021-02-02 | 天津市升发科技股份有限公司 | Online cutting device for aluminum pipe |
| CN112431626A (en) * | 2020-11-23 | 2021-03-02 | 山东建筑大学 | Prestressed grouting anchor rod with hydraulic telescopic sleeve, grouting system and method |
| CN112576292A (en) * | 2021-01-04 | 2021-03-30 | 贵州大学 | Prestressed hollow grouting anchor rod and construction method |
| CN113294189A (en) * | 2021-07-28 | 2021-08-24 | 徐州祥瑞工程机械科技有限公司 | Grouting anchor rod |
| CN113586114A (en) * | 2021-08-16 | 2021-11-02 | 石家庄铁道大学 | Radial expansion extrusion type anchor rod |
| CN114425869A (en) * | 2022-02-14 | 2022-05-03 | 浙江颢屹汽车技术有限公司 | Production process of model car |
| CN117513376A (en) * | 2024-01-04 | 2024-02-06 | 广州市泰基工程技术有限公司 | Geotechnical engineering side slope anchoring supporting structure |
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