CN109695462A - A kind of high intensity two fluid grouting anchor pole - Google Patents
A kind of high intensity two fluid grouting anchor pole Download PDFInfo
- Publication number
- CN109695462A CN109695462A CN201811416973.8A CN201811416973A CN109695462A CN 109695462 A CN109695462 A CN 109695462A CN 201811416973 A CN201811416973 A CN 201811416973A CN 109695462 A CN109695462 A CN 109695462A
- Authority
- CN
- China
- Prior art keywords
- rod
- interior
- slip casting
- tee tube
- pin
- 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
- 239000012530 fluid Substances 0.000 title claims abstract description 15
- 238000007569 slipcasting Methods 0.000 claims abstract description 33
- 239000007788 liquid Substances 0.000 claims abstract description 27
- 239000011435 rock Substances 0.000 claims abstract description 17
- 239000002002 slurry Substances 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 13
- 238000005553 drilling Methods 0.000 claims abstract description 10
- 238000007789 sealing Methods 0.000 claims abstract description 8
- 238000002156 mixing Methods 0.000 claims abstract description 7
- 239000000243 solution Substances 0.000 claims description 19
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 238000007711 solidification Methods 0.000 abstract description 2
- 230000008023 solidification Effects 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 11
- 238000002360 preparation method Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011268 mixed slurry Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000011946 reduction process Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
- E21D20/003—Machines for drilling anchor holes and setting anchor bolts
-
- 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
-
- 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
-
- 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
- E21D21/0093—Accessories
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The present invention relates to a kind of high-intensitive two fluid grouting anchor poles, including the outer body of rod, the interior body of rod, electric driver, screw rod, stop grouting plug, pallet, nut, tee tube；Outer lever front end is equipped with slurry outlet, and inside is connected with the interior body of rod by pin；Screw rod is equipped with inside interior bar body, the outer end of the interior body of rod is threadedly coupled tee tube, and screw rod passes through tee tube and connects electric driver；Interior lever front end is equipped with several baffles, and baffle can rotate under the rotation of the outer body of rod, realizes the sealing and opening of the internal body of rod；Grouted anchor bar is fixed by stop grouting plug, pallet and nut and drilling；Make solution A, second liquid in anchor pole main rod body internal mix, roadway surrounding rock can be injected at once after mixing, reduce process, avoiding slurries, there is a phenomenon where solidify before injecting roadway surrounding rock；Meanwhile the interior body of rod, outer bar structure can continue the internal body of rod slip casting after to roadway surrounding rock slip casting, make that anchor rod strength can be greatly enhanced after solidification full of slurries inside the body of rod.
Description
Technical field
The present invention relates to Roadway Support Technology fields, and in particular to one kind can inject the high strength grouting anchor of biliquid simultaneously
Bar.
Background technique
Grouted anchor bar is widely used in roadway support as a kind of supporting tool.But with the increasing of tunnel buried depth, ground
Stress increases with it, and roadway deformation destruction situation is further serious, and traditional anchor using cement-based grout as injecting paste material infuses branch
Handguard section is difficult to be modified deep laneway surrounding rock reinforcing, and therefore, novel slurry filling material comes into being, and this kind of injecting paste material is logical
It is often made of two kinds of components, referred to as dual-liquid slip-casting material, as: a kind of self heat absorption moulded coal mine disclosed in CN201510079457.0
A kind of super hardening microdilatancy two fluid grouting disclosed in safety dual-liquid slip-casting material and preparation method thereof, CN201310322206.1
A kind of production method etc. of the early strong dual-liquid slip-casting material of rapid hardening disclosed in material and preparation method thereof, CN201310642046.9.
Traditional application method of dual-liquid slip-casting material is: first adding water and stirring uniformly two kinds of materials respectively, then mixes two kinds of liquid
It is combined, uniformly mixed mixed liquor is finally injected into roadway surrounding rock using grouted anchor bar.The shortcomings that this application method, is:
Process is tedious, since setting rate is accelerated rapidly after dual-liquid slip-casting material mixing, also has not enough time to just make using grouted anchor bar
At the initial set of injecting paste material, causes slurries to be difficult to flow in grouted anchor bar, be more difficult to inject roadway surrounding rock.On the other hand,
Common grouted anchor bar is mostly hollow structure, and hollow lever intensity is lower after slip casting, it is difficult to higher crustal stress is born, because
This, it is necessary to a kind of reduction process is invented, the high strength grouting anchor pole of biliquid can be injected simultaneously.
Summary of the invention
It is an object of the invention to provide a kind of high-intensitive two fluid grouting anchor poles, can be quickly by two kinds of uniformly mixed slurries
Roadway surrounding rock is injected, process is simple.
To achieve the above object, the technical solution adopted by the present invention is that:
A kind of high intensity two fluid grouting anchor pole, including the outer body of rod, the interior body of rod, electric driver, screw rod, stop grouting plug, pallet, spiral shell
Female, tee tube；The outer lever front end is equipped with slurry outlet, and inside is connected with the interior body of rod by pin；It is set inside the interior bar body
There is screw rod, screw blade is distributed on screw rod, the outer end of the interior body of rod is threadedly coupled tee tube, and screw rod passes through tee tube
Connect electric driver；The interior lever front end is equipped with several baffles, and the baffle can rotate under the rotation of the outer body of rod,
Realize the sealing and opening of the internal body of rod；The grouted anchor bar is fixed by stop grouting plug, pallet and nut and drilling.
The baffle is sector structure, several baffles form the rod aperture that a circular baffle plate shelters from interior bar；Each gear
The center line of piece is fixed with pin close to camber line side.
The outer body of rod is the variable diameters body of rod, and the diameter of the front body of rod is less than main body portion diameter, and junction forms shoulder
Platform, cotter slot are set on the inside of outer body of rod shoulder, and pin is slidably mounted in cotter slot.
The cotter slot is arc groove, and starting point is overlapped with the position for the pin that baffle is under closed state, terminal phase
Starting point is extended to the edge of shoulder radially, and at a certain angle with starting point shape in the circumferential.
The screw rod and tee tube are rotatablely connected by bearing, and use rubber seal rings for seal in junction.
A kind of application method of high intensity two fluid grouting anchor pole is:
S1) after drilling is accomplished fluently in tunnel portion, side, it is inserted into drilling after the interior body of rod and the outer body of rod are connected in one by pin, then again
Pallet, nut, tee tube are successively installed, and adjust the interior body of rod and outer body of rod relative angular position, eight baffles is in and opens
State provides channel for slip casting, finally connects screw rod electric driver；
S2 solution A) will be infused, the grouting pump of second liquid is connected respectively at the solution A entrance of tee tube, second liquid entrance, to solution A, second liquid point
Not after mixing, while grouting pump and electric driver are opened, inside solution A, second liquid injection main rod body, in the spiral shell of rotation
It is sufficiently mixed in vane piece uniformly, grouted anchor bar is flowed out finally by slurry outlet, into roadway surrounding rock；
S3) after to roadway surrounding rock slip casting, the fixed interior body of rod, and the outer body of rod is rotated, pin moves in cotter slot, makes baffle
In closed state, slip casting channel is closed, continues slip casting at this time, is full of slurries inside entire interior bar body, after slip casting,
Electric driver is removed, and is sealed solution A entrance and second liquid entrance with sealing of hole plug, entire slip casting process is completed.
The invention has the advantages that solidified before mixing relatively slowly for solution A, second liquid, and setting rate is accelerated rapidly after mixing
The characteristics of, the high-intensitive two fluid grouting anchor pole that the present invention designs makes solution A, second liquid in anchor pole main rod body internal mix, is uniformly mixed
After can inject roadway surrounding rock at once, which reduce processes, avoid slurries before injecting roadway surrounding rock there is a phenomenon where solidifying, slip casting
Effect is obviously improved；Meanwhile the interior body of rod, the outer bar structure that the present invention designs can be after to roadway surrounding rock slip castings
Continue internal body of rod slip casting, makes that anchor rod strength can be greatly enhanced after solidification full of slurries inside the body of rod.
Detailed description of the invention
Fig. 1 is overall structure of the present invention.
Fig. 2 is interior bar body section figure of the present invention.
Fig. 3 is outer bar body section figure of the present invention.
Fig. 4 is the present invention to the body of rod interior during roadway surrounding rock slip casting and outer body of rod contact site sectional view.
Fig. 5 is the interior body of rod and outer body of rod contact site sectional view during internally body of rod slip casting of the invention.
The outer body of rod of 1-；The body of rod in 2-；3- electric driver；4- slurry outlet；5- screw rod；6- stop grouting plug；7- pallet；8- spiral shell
It is female；9- tee tube；10- solution A entrance；11- second liquid entrance；12- sealing-plug；13- pin；14- baffle；15- cotter slot.
Specific embodiment
As shown in Figure 1, a kind of high intensity two fluid grouting anchor pole, including the outer body of rod 1, the interior body of rod 2, electric driver 3, spiral
Bar 5, stop grouting plug 6, pallet 7, nut 8, tee tube 9；1 front end of the outer body of rod is equipped with slurry outlet 4, and inside is connected by pin 13
There is the interior body of rod 2；It is equipped with screw rod 5 inside the interior body of rod 2, screw blade, the outer end of the interior body of rod 2 is distributed on screw rod 5
It is threadedly coupled tee tube 9, screw rod 5 passes through tee tube 9 and connects electric driver 3；2 front end of the interior body of rod is equipped with several gears
Piece 14, the baffle 14 can rotate under the rotation of the outer body of rod 1, realize the sealing and opening of the internal body of rod 2；The slip casting anchor
Bar is fixed by stop grouting plug 6, pallet 7 and nut 8 and drilling.
As shown in Fig. 2,4,5, the baffle 14 is sector structure, several baffles 14 form a circular baffle plate and shelter from
The rod aperture of the interior body of rod 2；The center line of each baffle 14 is fixed with pin 13 close to camber line side.
As shown in figure 3, the outer body of rod 1 is the variable diameters body of rod, the diameter of the front body of rod is less than main body portion diameter, even
The place of connecing forms shoulder, and cotter slot 15 is set on the inside of outer 2 shoulder of the body of rod, and pin 13 is slidably mounted in cotter slot 15.
As shown in Fig. 2 ~ 5, the cotter slot 15 is arc groove, and starting point and baffle 14 are in the pin 13 under closed state
Position be overlapped, terminal extends to the edge of shoulder radially relative to starting point, and is formed in the circumferential with starting point certain
Angle.
As shown in Figure 1, the screw rod 5 is rotatablely connected with tee tube 9 by bearing, and rubber seal is used in junction
Circle sealing.
As shown in Figure 1, longitudinal tube body of the tee tube 9 is equipped with internal screw thread；One of nozzle of lateral tube body is first
Liquid entrance 10, another nozzle are second liquid entrance 11.
A kind of application method of high intensity two fluid grouting anchor pole is:
S1) after drilling is accomplished fluently in tunnel portion, side, it is inserted into drilling after the interior body of rod 2 and the outer body of rod 1 are connected in one by pin 13, so
Pallet 7, nut 8, tee tube 9 are successively installed again afterwards, and adjust 1 relative angular position of the interior body of rod 2 and the outer body of rod, makes eight baffles
14 is in the open state, provides channel for slip casting, finally connects screw rod electric driver 3；
S2) by infuse solution A, second liquid grouting pump connected respectively at solution A entrance 10, the second liquid entrance 11 of tee tube 9, to solution A,
Second liquid difference after mixing, while opening grouting pump and electric driver 3, inside solution A, second liquid injection main rod body 1,
It is sufficiently mixed in the helical blade of rotation uniformly, grouted anchor bar is flowed out finally by slurry outlet 4, into roadway surrounding rock；
S3) after to roadway surrounding rock slip casting, the interior body of rod 2 is fixed with clamping devices such as spanners, rotates the outer body of rod 1, pin 13 exists
It is moved in cotter slot 15, so that baffle 14 is in closed state, slip casting channel is closed, continues slip casting at this time, make slurries full of whole
Inside a interior body of rod 2, after slip casting, electric driver 3 is removed, and with sealing of hole plug by 11 envelope of solution A entrance 10 and second liquid entrance
Firmly, entire slip casting process is completed.
Claims (6)
1. a kind of high intensity two fluid grouting anchor pole, which is characterized in that including the outer body of rod, the interior body of rod, electric driver, screw rod,
Stop grouting plug, pallet, nut, tee tube；The outer lever front end is equipped with slurry outlet, and inside is connected with the interior body of rod by pin；Institute
It states and is equipped with screw rod inside interior bar body, screw blade is distributed on screw rod, the outer end of the interior body of rod is threadedly coupled tee tube, spiral shell
Spinner handle passes through tee tube and connects electric driver；The interior lever front end is equipped with several baffles, and the baffle can be in outer bar
It is rotated under the rotation of body, realizes the sealing and opening of the internal body of rod；The grouted anchor bar by stop grouting plug, pallet and nut with
Drilling is fixed.
2. a kind of high-intensitive two fluid grouting anchor pole according to claim 1, which is characterized in that the baffle is fan-shaped knot
Structure, several baffles form the rod aperture that a circular baffle plate shelters from the interior body of rod；The center line of each baffle is close to camber line side
It is fixed with pin.
3. a kind of high-intensitive two fluid grouting anchor pole according to claim 1, which is characterized in that the outer body of rod is variable diameters
The body of rod, the diameter of the front body of rod are less than main body portion diameter, and junction forms shoulder, and cotter slot is set in outer body of rod shoulder
Side, pin are slidably mounted in cotter slot.
4. a kind of high-intensitive two fluid grouting anchor pole according to claim 1, which is characterized in that the cotter slot is arc
Slot, starting point are overlapped with the position for the pin that baffle is under closed state, and terminal is relative to starting point radially to shoulder
Edge extends, and at a certain angle with starting point shape in the circumferential.
5. a kind of high-intensitive two fluid grouting anchor pole according to claim 1, which is characterized in that the screw rod and tee tube
It is rotatablely connected by bearing, and uses rubber seal rings for seal in junction.
6. the method for carrying out slip casting using grouted anchor bar described in claim 1 ~ 6 any one claim, which is characterized in that
The following steps are included:
S1) after drilling is accomplished fluently in tunnel portion, side, it is inserted into drilling after the interior body of rod and the outer body of rod are connected in one by pin, then again
Pallet, nut, tee tube are successively installed, and adjust the interior body of rod and outer body of rod relative angular position, eight baffles is in and opens
State provides channel for slip casting, finally connects screw rod electric driver；
S2 solution A) will be infused, the grouting pump of second liquid is connected respectively at the solution A entrance of tee tube, second liquid entrance, to solution A, second liquid point
Not after mixing, while grouting pump and electric driver are opened, inside solution A, second liquid injection main rod body, in the spiral shell of rotation
It is sufficiently mixed in vane piece uniformly, grouted anchor bar is flowed out finally by slurry outlet, into roadway surrounding rock；
S3) after to roadway surrounding rock slip casting, the fixed interior body of rod, and the outer body of rod is rotated, pin moves in cotter slot, makes baffle
In closed state, slip casting channel is closed, continues slip casting at this time, is full of slurries inside entire interior bar body, after slip casting,
Electric driver is removed, and is sealed solution A entrance and second liquid entrance with sealing of hole plug, entire slip casting process is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811416973.8A CN109695462B (en) | 2018-11-26 | 2018-11-26 | High-strength double-liquid grouting anchor rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811416973.8A CN109695462B (en) | 2018-11-26 | 2018-11-26 | High-strength double-liquid grouting anchor rod |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109695462A true CN109695462A (en) | 2019-04-30 |
| CN109695462B CN109695462B (en) | 2020-06-30 |
Family
ID=66230136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811416973.8A Expired - Fee Related CN109695462B (en) | 2018-11-26 | 2018-11-26 | High-strength double-liquid grouting anchor rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109695462B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112664246A (en) * | 2020-12-19 | 2021-04-16 | 山东新升实业发展有限责任公司 | Rock anchor rod for advance support and construction method |
| CN113006865A (en) * | 2021-04-21 | 2021-06-22 | 徐州中国矿大岩土工程新技术发展有限公司 | Coal mine goaf administers and backfill slurrying slip casting device that sinks |
| CN113090305A (en) * | 2021-04-30 | 2021-07-09 | 中煤科工开采研究院有限公司 | Anchor bolt support construction method |
| CN116537850A (en) * | 2023-06-29 | 2023-08-04 | 山东省路桥集团有限公司 | Hollow grouting anchor rod centering equipment for tunnel engineering |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4129007A (en) * | 1977-08-04 | 1978-12-12 | Celtite, Inc. | Anchor device for resin anchor system |
| JP2002364282A (en) * | 2001-06-12 | 2002-12-18 | Mitsubishi Materials Corp | Excavating tool and anchoring method using the same |
| CN204436425U (en) * | 2015-01-23 | 2015-07-01 | 河南工业和信息化职业学院 | A kind of two fluid grouting mixing arrangement |
| CN205089343U (en) * | 2015-10-28 | 2016-03-16 | 河南工业和信息化职业学院 | Mining high -pressure slip casting stock |
| CN205370613U (en) * | 2016-01-08 | 2016-07-06 | 河南理工大学 | Utilize biliquid slip casting medicated roll to realize high prestressing force total length anchored stock |
| CN205939542U (en) * | 2016-08-10 | 2017-02-08 | 东莞市泽风净化设备有限公司 | Wear wall tuber pipe |
| CN108060936A (en) * | 2017-12-15 | 2018-05-22 | 杭州富阳鸿祥技术服务有限公司 | A kind of top opening type anchor pole |
-
2018
- 2018-11-26 CN CN201811416973.8A patent/CN109695462B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4129007A (en) * | 1977-08-04 | 1978-12-12 | Celtite, Inc. | Anchor device for resin anchor system |
| JP2002364282A (en) * | 2001-06-12 | 2002-12-18 | Mitsubishi Materials Corp | Excavating tool and anchoring method using the same |
| CN204436425U (en) * | 2015-01-23 | 2015-07-01 | 河南工业和信息化职业学院 | A kind of two fluid grouting mixing arrangement |
| CN205089343U (en) * | 2015-10-28 | 2016-03-16 | 河南工业和信息化职业学院 | Mining high -pressure slip casting stock |
| CN205370613U (en) * | 2016-01-08 | 2016-07-06 | 河南理工大学 | Utilize biliquid slip casting medicated roll to realize high prestressing force total length anchored stock |
| CN205939542U (en) * | 2016-08-10 | 2017-02-08 | 东莞市泽风净化设备有限公司 | Wear wall tuber pipe |
| CN108060936A (en) * | 2017-12-15 | 2018-05-22 | 杭州富阳鸿祥技术服务有限公司 | A kind of top opening type anchor pole |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112664246A (en) * | 2020-12-19 | 2021-04-16 | 山东新升实业发展有限责任公司 | Rock anchor rod for advance support and construction method |
| CN112664246B (en) * | 2020-12-19 | 2022-07-08 | 山东新升实业发展有限责任公司 | Rock anchor rod for advance support and construction method |
| CN113006865A (en) * | 2021-04-21 | 2021-06-22 | 徐州中国矿大岩土工程新技术发展有限公司 | Coal mine goaf administers and backfill slurrying slip casting device that sinks |
| CN113006865B (en) * | 2021-04-21 | 2021-12-31 | 徐州中国矿大岩土工程新技术发展有限公司 | Coal mine goaf administers and backfill slurrying slip casting device that sinks |
| CN113090305A (en) * | 2021-04-30 | 2021-07-09 | 中煤科工开采研究院有限公司 | Anchor bolt support construction method |
| CN113090305B (en) * | 2021-04-30 | 2023-12-29 | 中煤科工开采研究院有限公司 | Anchor bolt support construction method |
| CN116537850A (en) * | 2023-06-29 | 2023-08-04 | 山东省路桥集团有限公司 | Hollow grouting anchor rod centering equipment for tunnel engineering |
| CN116537850B (en) * | 2023-06-29 | 2023-09-15 | 山东省路桥集团有限公司 | Hollow grouting anchor rod centering equipment for tunnel engineering |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109695462B (en) | 2020-06-30 |
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Granted publication date: 20200630 Termination date: 20211126 |