CN108756973A - Split type full length fastening flexible grout anchor pole and slip casting anchoring process - Google Patents
Split type full length fastening flexible grout anchor pole and slip casting anchoring process Download PDFInfo
- Publication number
- CN108756973A CN108756973A CN201810895812.5A CN201810895812A CN108756973A CN 108756973 A CN108756973 A CN 108756973A CN 201810895812 A CN201810895812 A CN 201810895812A CN 108756973 A CN108756973 A CN 108756973A
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- Prior art keywords
- grouting pipe
- semi
- circular
- hole
- sealing
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- 238000007569 slipcasting Methods 0.000 title claims abstract description 35
- 239000011440 grout Substances 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000004873 anchoring Methods 0.000 title claims abstract description 9
- 230000008569 process Effects 0.000 title abstract description 6
- 239000000178 monomer Substances 0.000 claims abstract description 52
- 238000007789 sealing Methods 0.000 claims abstract description 37
- 239000002002 slurry Substances 0.000 claims abstract description 23
- 239000003245 coal Substances 0.000 claims abstract description 19
- 238000005553 drilling Methods 0.000 claims description 23
- 239000000463 material Substances 0.000 claims description 14
- 238000002347 injection Methods 0.000 claims description 7
- 239000007924 injection Substances 0.000 claims description 7
- 244000198134 Agave sisalana Species 0.000 claims description 4
- 235000011624 Agave sisalana Nutrition 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 239000004411 aluminium Substances 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 230000010354 integration Effects 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 2
- 238000003780 insertion Methods 0.000 claims 1
- 230000037431 insertion Effects 0.000 claims 1
- 238000005065 mining Methods 0.000 abstract description 5
- 239000011435 rock Substances 0.000 abstract description 2
- 230000006378 damage Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 6
- 238000010276 construction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000002787 reinforcement Effects 0.000 description 4
- 229920002472 Starch Polymers 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 235000019698 starch Nutrition 0.000 description 3
- 239000008107 starch Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000009955 starching Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Classifications
-
- 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
- E21D21/0026—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
- E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
- E21D21/008—Anchoring or tensioning means
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/23—Dune restoration or creation; Cliff stabilisation
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)
- Piles And Underground Anchors (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention discloses a kind of split type full length fastening flexible grout anchor pole and slip casting anchoring process, it is related to mining engineering anchor technical field, including semi-circular Grouting Pipe monomer, the outer wall of semi-circular Grouting Pipe monomer is equipped with injected hole, and the flexible body is provided in the groove that inner wall is formed；It is connected to by connector between two adjacent semi-circular Grouting Pipe monomers, the shape of connector is identical as the cross sectional shape of semi-circular Grouting Pipe monomer；Locking device is for locking connector, flexible body and adjacent two semi-circular Grouting Pipe monomers；Sealing of hole baffle is set to one end of semi-circular Grouting Pipe monomer, for preventing the interior slurries outflow that drills, sealing of hole baffle is equipped with Grouting Pipe and is inserted into hole, and the shape that the Grouting Pipe is inserted into hole is identical as the cross sectional shape of structure formed by the flexible body and the semi-circular Grouting Pipe combination of monomers.The present invention can control the coal walls such as high working face, soft seam, rise mining and breaking roof or roof destruction, promote the stability of face surrounding rock.
Description
Technical field
The present invention relates to mining engineering palisades anchor technical fields, and in particular to a kind of split type full length fastening is flexible
Grouted anchor bar and slip casting anchoring process.
Background technology
Coal wall caving in progress of coal mining, the problems such as roof cracking degree is excessively high, drastically influence safe coal and efficiently give birth to
Production, especially in high working face, rise mining, soft seam recovery process, coal wall caving phenomenon is very serious, to producers, sets
Standby safety causes great threat.Mainly there is super-pressure water injection technology to the improvement of coal wall caving at this stage, reinforce top plate
Supporting, flexible reinforcement technique.Two methods of high-pressure water preventing sloughing technique and reinforcement roof timbering, to preventing coal wall caving from playing
Useful effect, but its is complicated for operation, feature of high cost influence its and a wide range of promote and apply.Anchor pole, anchor cable reinforcement technique are
It is most widely used common technical method, but the characteristic that can not be separated by coalcutter by its material at this stage, it can not be to coal wall
Strengthening control is carried out, therefore, flexible reinforcement technique is because its is at low cost, easy to operate, and control effect significant advantage protrudes, but its institute
The bore diameter needed is larger, and coir rope is placed with slip casting tube side-by-side tangency location, greatly wastes borehole space.
Invention content
Not only underground construction was convenient for operate the purpose of the present invention is to provide a kind of, but also slurries dosage can be saved, effectively reduced
Construction cost enhances the split type full length fastening flexible grout anchor pole and slip casting anchoring process of grouted anchor bar adaptability, to solve
Technical problem in above-mentioned background technology.
To achieve the goals above, this invention takes following technical solutions：
One aspect of the present invention provides a kind of split type full length fastening flexible grout anchor pole, including semi-circular Grouting Pipe list
Body, connector, flexible body, locking device and sealing of hole baffle, the semi-circular Grouting Pipe monomer are equipped with slip casting channel, the note
The lateral wall for starching channel is equipped with injected hole, and the flexible body is arranged in the groove of the madial wall formation in the slip casting channel；
It is connected to by the connector between two adjacent semi-circular Grouting Pipe monomers, the shape of the connector
It is identical as the cross sectional shape of semi-circular Grouting Pipe monomer；
The locking device is for locking the connector, the flexible body and adjacent two semi-circular Grouting Pipes
Monomer；
The sealing of hole baffle is for preventing the interior slurries outflow that drills, the sealing of hole baffle to be equipped with Grouting Pipe and be inserted into hole, institute
State the section that Grouting Pipe is inserted into the shape and the structure formed by the flexible body and the semi-circular Grouting Pipe combination of monomers in hole
Shape is identical.
Further, the locking device includes puller strap, and one end of the puller strap is connected with tight locking button, the tension
Take and the inner wall of the tight locking button on be equipped with for tense cooperation broached-tooth design.
Further, the connector is equipped with the through-hole of two semi-circular Grouting Pipe monomers of connection, the through-hole
Lateral wall internal diameter it is identical as the outer diameter of lateral wall of semi-circular Grouting Pipe monomer.
Further, the sealing of hole baffle is circle, and the outer diameter of the sealing of hole baffle is identical as the diameter of the drilling.
Further, the semi-circular Grouting Pipe monomer is made into integration by aluminium or PVC material.
Further, the flexible body is cylindrical type, and the flexible body is made of plastics, polyester fiber or sisal hemp coir rope.
Further, the outer diameter of the lateral wall of the semi-circular Grouting Pipe monomer is smaller 5-10mm than the diameter of the drilling.
Further, the connector is made of rubber material.
Further, the sealing of hole baffle is made of metal material.
Another aspect of the present invention, provide it is a kind of utilize as described above split type full length fastening flexible grout anchor pole carry out
The method of coal petrography wall slip casting anchoring, this method includes following process step：
Step S110：It drills at the coal petrography wall or top plate for needing slip casting to anchor, bore diameter is more than semi-circular Grouting Pipe list
The outer diameter of body；
Step S120：According to the depth of the drilling by required amount of semi-circular Grouting Pipe monomer by connector successively
Connection, while flexible body being positioned in the groove of semi-circular Grouting Pipe monomer, with locking device junction by flexible body, even
Fitting and adjacent two semi-circular Grouting Pipe monomer clampings；
Step S130：The grouted anchor bar being completed is sent into drilling, after being fully inserted into drilling, with connector by slip casting
Pump is connect with semi-circular Grouting Pipe monomer, is clamped with locking device, is prevented exoserosis；
Step S140：Sealing of hole baffle is installed, passes through the Grouting Pipe among sealing of hole baffle to be inserted into hole, sealing of hole gear grouted anchor bar
The tight locking button of locking device limits its position on the outside of plate, places and slips；
Step S150：Pressurization injection slurries remove grouting pump, connection are tightened with locking device after waiting for slurries injection
Part prevents slurries from outflowing；
Step S160：Drilling is blocked, the wedge-shaped stopper with diameter slightly larger than bore diameter inserts drilling orifice, prevents slurries
Sealing of hole baffle is washed in expansion open after reaction；
Step S170：Step S110- step S160 are repeated, until all coal petrography wall slip castings for needing slip casting to anchor have anchored
Finish.
Advantageous effect of the present invention：Semi-circular is made in Grouting Pipe, the flexible bodies such as coir rope are positioned over semi-circular Grouting Pipe
In groove, the effective overall space for saving Grouting Pipe and coir rope can accordingly reduce drilling directly in the case that reaching same effect
Diameter can be convenient for underground construction operation and slurries dosage, effectively reduce construction cost, enhance grouted anchor bar
Adaptability.
The additional aspect of the present invention and advantage will be set forth in part in the description, these will become from the following description
Obviously, or practice through the invention is recognized.
Description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, required use in being described below to embodiment
Attached drawing be briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for this
For the those of ordinary skill of field, without creative efforts, others are can also be obtained according to these attached drawings
Attached drawing.
Fig. 1 is that the split type full length fastening flexible grout anchor pole of the unused locking device described in the embodiment of the present invention is three-dimensional
Structure chart.
Fig. 2 is the split type full length fastening flexible grout anchor pole solid knot using locking device described in the embodiment of the present invention
Composition.
Fig. 3 is the three-dimensional structure diagram of the semi-circular Grouting Pipe monomer described in the embodiment of the present invention.
Fig. 4 is the three-dimensional structure diagram of the connector described in the embodiment of the present invention.
Fig. 5 is the three-dimensional structure diagram of the locking device described in the embodiment of the present invention.
Fig. 6 is the three-dimensional structure diagram of the sealing of hole baffle described in the embodiment of the present invention.
Fig. 7 be the split type full length fastening flexible grout anchor pole of utilization described in the embodiment of the present invention to coal petrography wall or top plate into
The method flow diagram of row slip casting anchoring.
Wherein：1- semi-circular Grouting Pipe monomers；2- connectors；3- flexible bodies；4- locking devices；5- sealing of hole baffles；6- is noted
Starch channel；7- injected holes；8- grooves；9- Grouting Pipes are inserted into hole；401- puller straps；402- tight locking buttons；403- broached-tooth designs；10-
Through-hole.
Specific implementation mode
Embodiments of the present invention are described in detail below, and the example of the embodiment is shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by attached
The embodiment of figure description is exemplary, and is only used for explaining the present invention, and is not construed as limiting the claims.
Those skilled in the art of the present technique are appreciated that unless expressly stated, singulative " one " used herein, " one
It is a ", " described " and "the" may also comprise plural form.It is to be further understood that is used in the specification of the present invention arranges
It refers to there are the feature, integer, step, operation, element and/or component, but it is not excluded that presence or addition to take leave " comprising "
Other one or more features, integer, step, operation, element and/or their group.It should be understood that " connection " used herein
Or " coupling " may include being wirelessly connected or coupling, the wording "and/or" used include one or more associated list
Any cell of item and all combination.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, all terms used herein (including technology art
Language and scientific terminology) there is meaning identical with the general understanding of the those of ordinary skill in fields of the present invention.Should also
Understand, those terms such as defined in the general dictionary, which should be understood that, to be had and the meaning in the context of the prior art
The consistent meaning of justice, and unless defined as here, will not be with idealizing or the meaning of too formal be explained.
It is of the invention for ease of understanding, explanation is further explained to the present invention with specific embodiment below in conjunction with the accompanying drawings, and
Specific embodiment does not constitute the restriction to the embodiment of the present invention.
It should be appreciated by those skilled in the art that attached drawing is the schematic diagram of embodiment, the component in attached drawing is not necessarily
Implement necessary to the present invention.
Embodiment one
As shown in Figure 1 to Figure 2, the embodiment of the present invention one provides a kind of split type full length fastening flexible grout anchor pole, packet
Include semi-circular Grouting Pipe monomer 1, connector 2, flexible body 3, locking device 4 and sealing of hole baffle 5, the semi-circular Grouting Pipe monomer
1 is equipped with slip casting channel 6, and the lateral wall in the slip casting channel 6 is equipped with injected hole 7, and the madial wall in the slip casting channel 6 is formed
Groove 8 in the setting flexible body 3；
As shown in Figure 3 to Figure 4, connected by the connector 2 between the adjacent two semi-circular Grouting Pipe monomers 1
Logical, the shape of the connector 2 is identical as the cross sectional shape of the semi-circular Grouting Pipe monomer 1；
The locking device 4 is for locking the connector 2, the flexible body 3 and adjacent two semi-circular notes
Starch pipe monomer 1；
The sealing of hole baffle 5 is equipped with Grouting Pipe and is inserted into hole 9 for the interior slurries outflow that prevents from drilling, the sealing of hole baffle 5,
The shape that the Grouting Pipe is inserted into hole 9 combines the structure formed with by the flexible body 3 and the semi-circular Grouting Pipe monomer 1
Cross sectional shape is identical.
As shown in figure 5, in specific embodiments of the present invention one, the locking device 4 includes puller strap 401, the drawing
One end of taut band 401 is connected with tight locking button 402, is equipped on the puller strap 401 and on the inner wall of the tight locking button 402 and is used for
Tense the broached-tooth design 403 of cooperation.
The locking device is used for clamp connection and Grouting Pipe, prevents the pressure due to slurries in slip casting pressure process
Grouting Pipe and connector are strutted, are detached from.
In specific embodiments of the present invention one, the connector 2 is equipped with two semi-circular Grouting Pipe lists of connection
The through-hole 10 of body 1, the outer diameter phase of the internal diameter of the lateral wall of the through-hole 10 and the lateral wall of the semi-circular Grouting Pipe monomer 1
Together.
As shown in fig. 6, in specific embodiments of the present invention one, the sealing of hole baffle 5 is circle, the sealing of hole baffle 5
Outer diameter it is identical as the diameter of the drilling.
In specific embodiments of the present invention one, the semi-circular Grouting Pipe monomer 1 is made into integration by aluminium or PVC material.
In practical applications, the semi-circular Grouting Pipe material is aluminum, and slurries are flowed along slip casting channel, and shape is half
Ring-type, internal diameter is consistent with flexible body diameter, and outer diameter is usually less than bore diameter 5-10mm, length according to exploitation field condition and
It is fixed, it is determined according to reinforcing scope, usual slip casting length of tube is 2-3m, and extensible can also intercept, and slurries flow measurement in pipe is dynamic, outside tube wall
Side is provided with osculum, is flowed out for slurries.
The making material of above-mentioned semi-circular Grouting Pipe monomer is not limited by above-mentioned material, and those skilled in the art can root
Material appropriate is selected to make the semi-circular Grouting Pipe monomer according to actual conditions.
In specific embodiments of the present invention one, the flexible body 3 is cylindrical type, and the flexible body 3 is fine by plastics, polyester
Dimension or sisal hemp coir rope are made.
In practical applications, the flexible body selects sisal hemp coir rope, is positioned over semi-circular Grouting Pipe groove location, adds
The main supporting body of solid controlling system, length are intercepted by the control range of required coal body or rock stratum, and diameter is according to reinforcing bearing capacity demand
It determines, the Grouting Pipe of the corresponding internal diameter of diametric fit uses.
In specific embodiments of the present invention one, the outer diameter of the lateral wall of the semi-circular Grouting Pipe monomer 1 is than the brill
The small 5-10mm of diameter in hole.
In specific embodiments of the present invention one, the connector 2 is made of rubber material.
In specific embodiments of the present invention one, the sealing of hole baffle 5 is made of metal material.
In practical applications, the sealing of hole baffle irony, class is cyclic annular, intermediate hole shape and grouted anchor bar shape one
It causes, outer diameter diameter is consistent with bore diameter, for blocking the gap between Grouting Pipe and drilling, prevents slurries from outflowing, improves note
Starch pressure.
The making material of above-mentioned sealing of hole baffle is not limited by above-mentioned material, and those skilled in the art can be according to practical feelings
Condition selects material appropriate to make the sealing of hole baffle.
Embodiment two
As shown in fig. 7, second embodiment of the present invention provides a kind of split type full length fastenings using as described in embodiment one
The method that flexible grout anchor pole carries out slip casting anchoring to coal petrography wall or top plate, this method mainly include the following steps：
Step S110：It drills at the coal petrography wall or top plate for needing slip casting to anchor, bore diameter is more than semi-circular Grouting Pipe list
The outer diameter of body；
Step S120：According to the depth of the drilling by required amount of semi-circular Grouting Pipe monomer by connector successively
Connection, while flexible body being positioned in the groove of semi-circular Grouting Pipe monomer, with locking device junction by flexible body, even
Fitting and adjacent two semi-circular Grouting Pipe monomer clampings；
Step S130：The grouted anchor bar being completed is sent into drilling, after being fully inserted into drilling, with connector by slip casting
Pump is connect with semi-circular Grouting Pipe monomer, is clamped with locking device, is prevented exoserosis；
Step S140：Sealing of hole baffle is installed, passes through the Grouting Pipe among sealing of hole baffle to be inserted into hole, sealing of hole gear grouted anchor bar
The tight locking button of locking device limits its position on the outside of plate, places and slips；
Step S150：Pressurization injection slurries remove grouting pump, connection are tightened with locking device after waiting for slurries injection
Part prevents slurries from outflowing；
Step S160：Drilling is blocked, the wedge-shaped stopper with diameter slightly larger than bore diameter inserts drilling orifice, prevents slurries
Sealing of hole baffle is washed in expansion open after reaction；
Step S170：Step S110- step S160 are repeated, until all coal petrography wall slip castings for needing slip casting to anchor have anchored
Finish.
In conclusion the split type full length fastening flexible grout anchor pole described in the embodiment of the present invention can give full play to high working face
The advantage of exploitation can effectively control the generation of coal wall caving accident, ensure the safety of production process during large cutting height workface
With it is efficient.
One of ordinary skill in the art will appreciate that：The component in device in the embodiment of the present invention can be according to embodiment
Description be distributed in the device of embodiment, respective change can also be carried out and be located at one or more dresses different from the present embodiment
In setting.The component of above-described embodiment can be merged into a component, can also be further split into multiple subassemblies.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, the change or replacement that can be readily occurred in,
It should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with scope of the claims
Subject to.
Claims (10)
1. a kind of split type full length fastening flexible grout anchor pole, it is characterised in that：Including semi-circular Grouting Pipe monomer (1), connection
Part (2), flexible body (3), locking device (4) and sealing of hole baffle (5), the semi-circular Grouting Pipe monomer (1) are logical equipped with slip casting
Road (6), the lateral wall of the slip casting channel (6) are equipped with injected hole (7), and the madial wall of the slip casting channel (6) forms recessed
The setting flexible body (3) in slot (8)；
It is connected to by the connector (2) between two adjacent semi-circular Grouting Pipe monomers (1), the connector (2)
Shape it is identical as the cross sectional shape of semi-circular Grouting Pipe monomer (1)；
The locking device (4) is for locking the connector (2), the flexible body (3) and adjacent two semi-circulars
Grouting Pipe monomer (1)；
The sealing of hole baffle (5) is for preventing the interior slurries outflow that drills, the sealing of hole baffle (5) to be equipped with Grouting Pipe and be inserted into hole
(9), the shape of Grouting Pipe insertion hole (9) combines shape with by the flexible body (3) and the semi-circular Grouting Pipe monomer (1)
At structure cross sectional shape it is identical.
2. split type full length fastening flexible grout anchor pole according to claim 1, it is characterised in that：The locking device
(4) include puller strap (401), one end of the puller strap (401) is connected with tight locking button (402), on the puller strap (401) and
The broached-tooth design (403) for tensing cooperation is equipped on the inner wall of the tight locking button (402).
3. split type full length fastening flexible grout anchor pole according to claim 2, it is characterised in that：The connector (2)
Be equipped with connection two semi-circular Grouting Pipe monomers (1) through-hole (10), the internal diameter of the lateral wall of the through-hole (10) with
The outer diameter of the lateral wall of the semi-circular Grouting Pipe monomer (1) is identical.
4. split type full length fastening flexible grout anchor pole according to claim 3, it is characterised in that：The sealing of hole baffle
(5) it is round, the outer diameter of the sealing of hole baffle (5) is identical as the diameter of the drilling.
5. split type full length fastening flexible grout anchor pole according to claim 4, it is characterised in that：The semi-circular slip casting
Pipe monomer (1) is made into integration by aluminium or PVC material.
6. split type full length fastening flexible grout anchor pole according to claim 5, it is characterised in that：The flexible body (3)
For cylindrical type, the flexible body (3) is made of plastics, polyester fiber or sisal hemp coir rope.
7. split type full length fastening flexible grout anchor pole according to claim 6, it is characterised in that：The semi-circular slip casting
The outer diameter of the lateral wall of pipe monomer (1) is smaller 5-10mm than the diameter of the drilling.
8. split type full length fastening flexible grout anchor pole according to claim 7, it is characterised in that：The connector (2)
It is made of rubber material.
9. split type full length fastening flexible grout anchor pole according to claim 8, it is characterised in that：The sealing of hole baffle
(5) it is made of metal material.
10. a kind of carrying out slip casting anchor using the split type full length fastening flexible grout anchor pole of such as claim 1-9 any one of them
Solid method, which is characterized in that include the following steps：
Step S110：It drills at the coal petrography wall or top plate for needing slip casting to anchor, bore diameter is more than semi-circular Grouting Pipe monomer (1)
Outer diameter；
Step S120：According to the drilling depth by required amount of semi-circular Grouting Pipe monomer (1) by connector (2) according to
Secondary connection, while flexible body (3) being positioned in the groove (8) of semi-circular Grouting Pipe monomer (1), with locking device (4) even
Place is met by flexible body (3), connector (2) and adjacent two semi-circular Grouting Pipe monomer (1) clampings；
Step S130：The grouted anchor bar being completed is sent into drilling, after being fully inserted into drilling, with connector (2) by slip casting
Pump is connect with semi-circular Grouting Pipe monomer (1), is clamped with locking device (4), is prevented exoserosis；
Step S140：Sealing of hole baffle (5) is installed, the Grouting Pipe for passing through sealing of hole baffle (5) intermediate grouted anchor bar is inserted into hole (9),
The tight locking button (402) of locking device (4) limits its position on the outside of sealing of hole baffle (5), places and slips；
Step S150：Pressurization injection slurries remove grouting pump, connector are tightened with locking device (4) after waiting for slurries injection
(2), prevent slurries from outflowing；
Step S160：Drilling is blocked, the wedge-shaped stopper with diameter slightly larger than bore diameter inserts drilling orifice, prevents slurry reaction
After expand and wash sealing of hole baffle (5) open；
Step S170：Step S110- step S160 are repeated, until all coal petrography wall slip castings for needing slip casting to anchor anchoring finishes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110644469A (en) * | 2019-10-31 | 2020-01-03 | 中铁二院工程集团有限责任公司 | Sectional grouting device and grouting method for steel perforated pipe grouting |
| CN113846991A (en) * | 2021-09-22 | 2021-12-28 | 浙江化工工程地质勘察院有限公司 | Borehole inner wall reinforcing structure and method |
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| CN110644469A (en) * | 2019-10-31 | 2020-01-03 | 中铁二院工程集团有限责任公司 | Sectional grouting device and grouting method for steel perforated pipe grouting |
| CN113846991A (en) * | 2021-09-22 | 2021-12-28 | 浙江化工工程地质勘察院有限公司 | Borehole inner wall reinforcing structure and method |
| CN113846991B (en) * | 2021-09-22 | 2023-05-02 | 浙江化工工程地质勘察院有限公司 | Reinforcing structure and reinforcing method for inner wall of drill hole |
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