CN2291449Y - Internal anchor external injection type anchor rod - Google Patents
Internal anchor external injection type anchor rod Download PDFInfo
- Publication number
- CN2291449Y CN2291449Y CN 97235670 CN97235670U CN2291449Y CN 2291449 Y CN2291449 Y CN 2291449Y CN 97235670 CN97235670 CN 97235670 CN 97235670 U CN97235670 U CN 97235670U CN 2291449 Y CN2291449 Y CN 2291449Y
- Authority
- CN
- China
- Prior art keywords
- slip casting
- section
- rod
- anchor
- sealing
- 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.)
- Expired - Fee Related
Links
- 238000002347 injection Methods 0.000 title 1
- 239000007924 injection Substances 0.000 title 1
- 238000007569 slipcasting Methods 0.000 claims abstract description 36
- 238000007789 sealing Methods 0.000 claims abstract description 24
- 239000011435 rock Substances 0.000 claims abstract description 18
- 238000005452 bending Methods 0.000 claims abstract description 4
- 238000004873 anchoring Methods 0.000 claims description 20
- 230000008093 supporting effect Effects 0.000 claims description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 125000004122 cyclic group Chemical group 0.000 abstract 1
- 238000009434 installation Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 14
- 239000002002 slurry Substances 0.000 description 7
- 239000002184 metal Substances 0.000 description 5
- 239000004570 mortar (masonry) Substances 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 241001417516 Haemulidae Species 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 239000007799 cork Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000010534 mechanism of action Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
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- Piles And Underground Anchors (AREA)
Abstract
The utility model discloses a be used for soft breakage, the interior anchor of the rock mass support that the joint and the bedding are developmental annotates formula stock outward, including the body of rod, the nut of tray, its body of rod both is the bearing rod body, and the slip casting pipe, whole body of rod divide into the triplex, anchor section promptly, slip casting section and hole sealing section, anchor section is the bending form, a plurality of slip casting holes of slip casting section distribution, hole sealing section cover has the cyclic annular stopper of wedge, when the tunnel has just been dug out, this stock can be used as ordinary stock exclusive use, the hole sealing is simple, can be as the slip casting stock after the tunnel warp, the slip casting is easy to installation stock and slip casting mutually noninterference.
Description
The utility model relates to a kind of anchor pole that is used for underground engineering support, a kind of interior anchor external poured anchor pole of more specifically saying so.This anchor pole can be widely used in the underground engineering support of various types of properties and various cross dimensions and shape, is particularly useful for the rock mass supporting that soft broken, joint and bedding are grown.
Anchor pole and slip casting all are the citation forms that underground passage (tunnel) engineering surrounding rock is reinforced, if utilize anchor pole double as Grouting Pipe, tunnel (tunnel) country rock is carried out slip casting, but the broken rock of one side reinforced roadway (tunnel) periphery, the self-bearing capacity of raising country rock; Also can improve the structure and the mechanical property thereof of broken rock on the other hand, but provide the material base of anchor for anchor pole, bring into play the anchorage effect of anchor pole to greatest extent, so, as watch a bolt support and grouting and reinforcing organically combines, obtain the optimum efficiency of tunnel (tunnel) surrounding rock consolidation, be the content that people study always.The former Soviet Union, Germany etc. just adopt hollow circular-tube as anchor pole country rock to be implemented slip casting in the eighties, and also there are similar scientific achievement in domestic Shandong Mineral College and China Mining University.Facts have proved, the key of enforcement bolt grouting supporting is the sealing between anchor pole and the drill hole wall, the former Soviet Union and Shandong Mineral College adopt " stop grouting plug " to seal, but " stop grouting plug " only played the sealing of hole effect, no anchorage effect, anchor structure is also complicated, influenced utilization in practice, Chinese patent " a kind of sealing anchoring type outer anchor inner grunt anchor pole ", the patent No.: 95240055.3, only have than much progress on this basis, this anchor pole adopts open-core type hard soon, the anchoring section that high-strength sealing anchoring agent is enclosed within anchor bar body carries out anchoring outward, manufacture craft is simple, solved the leakage problem of high pressure slurries well, and sealing material played certain anchorage effect, but still had following many problems: 1. the mechanism of action of bolt grouting is: after anchor pole is implemented slip casting as Grouting Pipe, anchor pole and slip casting are concured, reach best supporting effect.But in practice, because slurries have certain permeability and solidify the characteristic of back volume contraction, and after slip casting finishes, slurries in the pipe shape anchor pole can part run off, the imagination that anchor pole is anchored between hole wall fully can't realize, so, existing bolt grouting technology, the anchorage effect of anchor pole is less relatively, has reduced supporting effect.2. the distortion of roadway surrounding rock has tangible time control effect, and the scope of breaking of country rock is also along with the variation of the time and space changes.For grouting and reinforcing, the tunnel deep rock mass is because initial fissure holds closure state more under high stress, secondary interstice is very agensis also, need very high grouting pressure to inject, so slip casting effect is very poor, and the loosening broken rock of tunnel-surrounding, owing to be in low confined pressure state, secondary interstice is grown, initial fissure also becomes opening-wide state, slurries are easy to inject, and the main object of grouting and reinforcing, so existing grouted anchor bar does not just have or only have the part anchored force at the supporting initial stage, this kind supporting could be used under the situation of having only temporary lining or other support form, can not use separately, in fact, still not find the report that the bolt grouting technology is used separately; The optimum range of slip casting is the broken rock of tunnel-surrounding, so the sealing of hole position of bolt grouting can not be too dark, otherwise can influence slip casting effect.
By above-mentioned bolt grouting mechanism and effect Analysis, at the deficiencies in the prior art, the purpose of this utility model design exactly a kind of in anchor external poured anchor pole, make it to satisfy fully the requirement on the bolt grouting mechanism and the needs of practical application.
The purpose of this utility model can realize in the following way: as described in claims, anchor external poured anchor pole comprises the body of rod in of the present utility model, wedge shape ring-type plug, the shelves ring, pallet and nut, its body of rod adopts the metal steel pipe, it is a Grouting Pipe, it is again the anchor bar body of carrying, its length is determined according to requirement of engineering, the metal steel pipe body of rod one end has external screw thread, be used for fastening nut, the whole metal steel pipe body of rod is divided into three parts, it is anchoring section, slip casting section and sealing of hole section separate with the shelves ring between every section, and anchoring section is a bending, come anchoring with the anchoring agent, the slip casting section is distributed with some pulp apertures, and pulp usefulness when being used for slip casting, sealing of hole section adopt wedge shape ring-type plug to come sealing of hole slip casting.
The utility model compared with prior art has following advantage: 1. during the tunnel just excavates, anchor pole of the present utility model is end anchor anchor pole, can be used as common bolt and uses, anchor rod anchored after, put wedge ring shape plug at termination point of anchor rod, top tray again, last fastening nut, wedge shape ring-type plug compresses with drill hole wall under the extruding of baffle ring and pallet, play the sealing of hole effect, if sprayed mortar can increase sealing of hole effect and supporting effect again, make the sealing of hole problem become very simple.2. when the roadway deformation amount reaches certain numerical value, promptly form certain loosening breaking during scope at tunnel-surrounding, again roadway surrounding rock is implemented slip casting, can make roadway surrounding rock fully obtain release, slip casting is become easily, reach the supporting effect of the best.Simultaneously, skyhook and slip casting are divided into two operations to be carried out, and does not disturb, do not influence the driving speed in tunnel mutually.
Description of drawings:
Accompanying drawing is the structural representation of anchor external poured anchor pole in the utility model.
The embodiment that provides below in conjunction with accompanying drawing does to describe in further detail to the utility model.Anchor external poured anchor pole comprises the body of rod 1 in of the present utility model, wedge shape ring-type plug 2, pallet 3, baffle ring 4 and nut 5, the body of rod 1 is a steel pipe, one end of the metal steel pipe body of rod 1 has external screw thread, is used for fastening nut 5, and the whole metal steel pipe body of rod 1 is divided into three parts, it is anchoring section, slip casting section and sealing of hole section, between anchoring section and the slip casting section, be provided with baffle ring 4 between slip casting section and the sealing of hole section, anchoring section is a bending, come anchoring with anchoring agent 6, be distributed with several slip casting apertures 7 on the slip casting section, the usefulness of pulp when being used for slip casting, sealing of hole section adopt wedge shape ring-type plug 2 sealing of holes, wedge shape ring-type plug 2 is cork or rubber ring, be enclosed within on the body of rod 1, and cooperate sprayed mortar, increase the effect of sealing of hole.
During the tunnel has just excavated, should anchor rod anchored section in preceding insertion bolthole, anchoring section with anchoring agent 6 anchoring rod bodies 1, wedge shape ring-type plug 2 on the other end headgear of anchor pole, top tray 3 again, last fastening nut 5, wedge shape ring-type plug 2 compresses with borehole wall under the extruding of baffle ring 4 and pallet 3, play the sealing of hole effect, cooperate sprayed mortar, increase the effect of sealing of hole.When the tunnel reaches certain deflection, hollow anchor bar body 1 is carried out slip casting as Grouting Pipe, slurries are discharged from the slip casting section slurry outlet of anchor bar body 1, village slurry in the certain loosening scope of breaking that tunnel-surrounding forms, both made roadway surrounding rock obtain abundant release, slip casting is become easily, reach best supporting effect.
Claims (1)
1. one kind is used for soft broken, the interior anchor external poured anchor pole of the rock mass supporting that joint and bedding are grown, comprise the body of rod (1), pallet (3) and nut (5), one end of the body of rod (1) has external screw thread, it is characterized in that: the body of rod (1) is a steel pipe, being the carrying body of rod, is again Grouting Pipe, and the whole body of rod (1) is divided into three parts, it is anchoring section, slip casting section and sealing of hole section, separate with baffle ring (4) between every section, anchoring section is a bending, to increase resistance, with anchoring agent (6) anchoring, be distributed with several slip casting apertures (7) on the slip casting section, the usefulness of pulp when being used for slip casting, sealing of hole section are with wedge shape ring-type plug and are used for sealing of hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97235670 CN2291449Y (en) | 1997-04-03 | 1997-04-03 | Internal anchor external injection type anchor rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97235670 CN2291449Y (en) | 1997-04-03 | 1997-04-03 | Internal anchor external injection type anchor rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2291449Y true CN2291449Y (en) | 1998-09-16 |
Family
ID=33946712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97235670 Expired - Fee Related CN2291449Y (en) | 1997-04-03 | 1997-04-03 | Internal anchor external injection type anchor rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2291449Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102409671A (en) * | 2011-08-04 | 2012-04-11 | 广东保威新能源有限公司 | Spiral pillar with adjustable upright column mounting height |
| CN103046548A (en) * | 2012-12-22 | 2013-04-17 | 中冶集团武汉勘察研究院有限公司 | Modified anti-floating anchor rod anchor head |
| CN104373144A (en) * | 2013-08-12 | 2015-02-25 | 高原 | Expansive high-pressure hole sealing hollow slurry/grease injecting anchor rod |
| CN108590724A (en) * | 2018-07-02 | 2018-09-28 | 四川大学 | A kind of scatter fills formula anchor pole admittedly |
| CN111877369A (en) * | 2020-07-14 | 2020-11-03 | 中国一冶集团有限公司 | Construction method for slope support reinforcement |
| CN114412524A (en) * | 2022-01-07 | 2022-04-29 | 中国矿业大学 | Dynamic grouting intrinsic safety type anchor grouting reinforcement-gas extraction efficiency enhancement dual-purpose system |
-
1997
- 1997-04-03 CN CN 97235670 patent/CN2291449Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102409671A (en) * | 2011-08-04 | 2012-04-11 | 广东保威新能源有限公司 | Spiral pillar with adjustable upright column mounting height |
| CN103046548A (en) * | 2012-12-22 | 2013-04-17 | 中冶集团武汉勘察研究院有限公司 | Modified anti-floating anchor rod anchor head |
| CN104373144A (en) * | 2013-08-12 | 2015-02-25 | 高原 | Expansive high-pressure hole sealing hollow slurry/grease injecting anchor rod |
| CN108590724A (en) * | 2018-07-02 | 2018-09-28 | 四川大学 | A kind of scatter fills formula anchor pole admittedly |
| CN111877369A (en) * | 2020-07-14 | 2020-11-03 | 中国一冶集团有限公司 | Construction method for slope support reinforcement |
| CN114412524A (en) * | 2022-01-07 | 2022-04-29 | 中国矿业大学 | Dynamic grouting intrinsic safety type anchor grouting reinforcement-gas extraction efficiency enhancement dual-purpose system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |