CN114482039A - Automatic centering jet grouting enlarged footing anchor cable - Google Patents
Automatic centering jet grouting enlarged footing anchor cable Download PDFInfo
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- CN114482039A CN114482039A CN202210184421.9A CN202210184421A CN114482039A CN 114482039 A CN114482039 A CN 114482039A CN 202210184421 A CN202210184421 A CN 202210184421A CN 114482039 A CN114482039 A CN 114482039A
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- 238000004873 anchoring Methods 0.000 claims abstract description 37
- 238000000034 method Methods 0.000 claims abstract description 16
- 230000003014 reinforcing effect Effects 0.000 claims description 57
- 239000004568 cement Substances 0.000 claims description 16
- 239000011440 grout Substances 0.000 claims description 12
- 210000003205 muscle Anatomy 0.000 claims description 12
- 238000005553 drilling Methods 0.000 claims description 8
- 239000002002 slurry Substances 0.000 claims description 8
- 238000003825 pressing Methods 0.000 claims description 6
- 238000005507 spraying Methods 0.000 claims description 5
- 238000005520 cutting process Methods 0.000 claims description 4
- 239000007921 spray Substances 0.000 claims description 4
- 238000009826 distribution Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 9
- 238000009434 installation Methods 0.000 abstract description 3
- 239000007787 solid Substances 0.000 abstract 3
- 238000007569 slipcasting Methods 0.000 description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000003351 stiffener Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- 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
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
- E02D15/04—Placing concrete in mould-pipes, pile tubes, bore-holes or narrow shafts
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- 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
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
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- 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
- E02D5/76—Anchorings for bulkheads or sections thereof in as much as specially adapted therefor
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- 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
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- 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
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- 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
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/003—Injection of material
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2600/00—Miscellaneous
- E02D2600/30—Miscellaneous comprising anchoring details
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention provides an automatic-centering jet grouting enlarged footing anchor cable, and relates to the technical field of geotechnical engineering anchoring. This automatic spout enlarged footing anchor rope soon of centering, including anchor rope and first locating component, the outside of locating plate is provided with a plurality of evenly distributed the solid fixed cylinder, the internal connection of solid fixed cylinder has the spring, the one end of spring is connected with the activity stopper, one side fixedly connected with of activity stopper the movable rod, the one end of solid fixed cylinder is provided with the slide opening. Through the first locating component of installation outside the anchor rope, set up a plurality of locating holes through on the locating plate and can install a plurality of anchor ropes, can make the movable rod stretch out and draw back in fixed cylinder through the spring, at the in-process that impels the anchor rope, the movable rod can get into the bottom smoothly and enlarge internally, prevents the skew anchor hole of anchor rope, and automatic alignment anchor hole bottom remains evenly distributed throughout, and the atress is balanced, can increase the anchor power simultaneously, improves whole resistance to plucking ability.
Description
Technical Field
The invention relates to the technical field of geotechnical engineering anchoring, in particular to an automatic-centering jet grouting enlarged head anchor cable.
Background
With the rapid development of foundation pit supporting engineering, various new process layers for supporting engineering emerge endlessly, as substitutes that the pulling force of ordinary anchor rods in a pile anchor system can not reach, high-pressure jet grouting enlarged head anchor cables are more and more commonly adopted in foundation pit supporting engineering, the high-pressure jet grouting enlarged head anchor cables adopt a high-pressure jet grouting principle, high-pressure gas and water are used for cutting, reaming and replacing filling cement slurry within a section of length range of an enlarged head, and then a cylindrical enlarged head is formed, and anchor cables are installed in holes in the reaming process.
When the existing anchor cable is installed, the phenomenon that the anchor cable anchoring effect is poor due to insufficient anchoring force of the anchoring section or the grouting effect of the grouting anchor cable is poor can often occur, the contact area between the anchor cable and the grouting body is too small, and the anchor cable cannot be aligned to the middle of an anchor hole, so that the overall anti-pulling capacity of the anchor cable is poor.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides an automatic-centering jet grouting enlarged head anchor cable, which solves the problem of poor overall pulling resistance of the anchor cable.
In order to achieve the purpose, the invention is realized by the following technical scheme: an automatic-centering jet grouting enlarged footing anchor cable comprises an anchor cable and a first positioning assembly, wherein the first positioning assembly comprises a positioning plate, a fixed cylinder and a movable rod, the outer side of the positioning plate is provided with a plurality of uniformly distributed fixed cylinders, the inner part of the fixed cylinder is connected with a spring, one end of the spring is connected with a movable plug, one side of the movable plug is fixedly connected with the movable rod, one end of the fixed cylinder is provided with a slide hole, the outer side of the movable rod is slidably connected with the inner side of the slide hole, the center of the positioning plate is provided with a first grouting hole, a positioning hole is arranged in the outer side of the positioning plate adjacent to the first grouting hole, one side of the outer side of the anchor cable adjacent to the first positioning assembly is provided with a reinforcing plate, the center of the reinforcing plate is provided with a second grouting hole, and the outer side of the reinforcing plate adjacent to the first grouting hole is provided with a reinforcing hole, the anchor cable passes in proper order locating hole and enhancement hole, the edge fixedly connected with of reinforcing plate a plurality of evenly distributed strengthen horizontal muscle, strengthen the one end fixedly connected with reinforcing ring of horizontal muscle.
Preferably, the number of the fixed cylinders is four or six.
Preferably, the diameter of the sliding hole is smaller than that of the movable plug, and an anti-blocking structure is arranged at one end, far away from the sliding hole, of the movable rod.
Preferably, the anti-jamming structure is one of a sliding block, a guide pillar or a roller assembly, wherein the roller assembly comprises a wheel frame and a roller arranged at one end of the wheel frame, and the other end of the wheel frame is fixedly connected to one end of the movable rod.
Preferably, the other end of the fixed cylinder is provided with an end cover, one side of the end cover is tightly connected to the other end of the spring, and the other side of the end cover is fixedly connected to the outer side of the positioning plate.
Preferably, the number of the positioning holes is the same as that of the anchor cables, and the number of the positioning holes is four, and the number of the reinforcing holes is the same as that of the anchor cables.
Preferably, one end of the reinforcing transverse rib is fixedly connected with a reinforcing inclined rib, one end of the reinforcing inclined rib is fixedly connected to the outer side of the second grouting hole, and the reinforcing inclined rib and the reinforcing hole are distributed alternately.
Preferably, a second positioning assembly is arranged on the outer side of the anchor cable, the second positioning assembly and the first positioning assembly are identical in structure, and the second positioning assembly and the first positioning assembly are respectively located on two sides of the reinforcing plate.
Preferably, one end of the anchor cable is provided with an anchor sleeve, the other end of the anchor cable is provided with an anchoring plate, one side of the anchoring plate is provided with an anchor plug, the other side of the anchoring plate is provided with a fixed helicoidal ring, and the anchor plug and the fixed helicoidal ring are both connected to the outer side of the anchor cable.
Preferably, the use method of the self-centering jet grouting enlarged head anchor cable comprises the following steps:
setting a drilling direction and a drilling position according to a specified anchor rod position and an anchor rod body hole forming direction by using a high-pressure automatic rotating nozzle, pressing cement slurry into the drill rod from the rear end part of the drill rod through a high-pressure pump, gradually pressing the cement slurry into the high-pressure automatic rotating nozzle, outwards spraying the cement slurry by using the high-pressure automatic rotating nozzle, and gradually pushing the cement slurry forwards to form an anchoring hole;
secondly, in the process of pushing the high-pressure automatic rotating spray head forwards, according to the preset appointed expanding hole positions in the middle and at the bottom of the anchoring hole, the high-pressure automatic rotating spray head is used for staying and cutting at the appointed expanding hole positions to form a middle expanding body and a bottom expanding body;
and step three, pulling out the drill rod and the high-pressure automatic rotating nozzle, enabling the anchor cable to sequentially penetrate through a positioning hole of the second positioning component, a reinforcing hole in the reinforcing plate and a positioning hole in the first positioning component, then fixing the anchor cable, enabling the distance between the second positioning component and the first positioning component to be equal to the distance between the middle expansion body and the bottom expansion body, inserting the first positioning component into the bottom expansion body in the anchoring hole by using the anchor cable, inserting the second positioning component into the middle expansion body, fixing the anchor cable through the anchoring plate and the fixing spiral ring, injecting cement slurry into the first grouting hole and the second grouting hole, and forming the high-pressure rotary spraying expansion head anchor cable.
The working principle is as follows: through installing first locating component outside the anchor rope, can install a plurality of anchor ropes through setting up a plurality of locating holes on the locating plate, can make the movable rod stretch out and draw back in fixed cylinder through the spring, at the in-process of propelling the anchor rope, the movable rod can get into the bottom smoothly and enlarge internally, prevent the skew anchor hole of anchor rope, the anchor rope can automatic alignment anchor hole bottom, remain evenly distributed throughout, the atress is balanced, utilize locating hole and many anchor ropes of enhancement hole installation, second grout hole, drilling rod and grout are convenient for place in first grout hole, support the anchor rope through the reinforcing plate, utilize and strengthen horizontal muscle and reinforcing ring and improve intensity, the area of contact between anchor rope and the slip casting body has been increased, and the slip casting effect has been improved, can increase anchoring force simultaneously, improve whole resistance to plucking.
The invention provides a self-centering jet grouting expanded head anchor cable. The method has the following beneficial effects:
1. according to the invention, the first positioning assembly is arranged outside the anchor cable, the plurality of anchor cables can be arranged by arranging the plurality of positioning holes on the positioning plate, the movable rod can be stretched in the fixed cylinder through the spring, the movable rod can smoothly enter the bottom expanding body in the process of propelling the anchor cable, the anchor cable is prevented from deviating from the anchoring hole, the anchor cable is automatically aligned to the bottom of the anchoring hole, the anchor cable is always uniformly distributed and stressed in a balanced manner, meanwhile, the anchoring force can be increased, and the integral pulling resistance is improved.
2. According to the invention, the positioning holes and the reinforcing holes are utilized to install the plurality of anchor cables, the second grouting hole and the first grouting hole are convenient for placing the drill rod and grouting, the anchor cables are supported by the reinforcing plate, the strength is improved by the reinforcing transverse ribs and the reinforcing rings, the reinforcing inclined ribs and the reinforcing transverse ribs form a triangle, the contact area between the anchor cables and the grouting body is increased, the grouting effect is improved, meanwhile, the anchoring force can be increased, and the integral anti-pulling capacity is further improved.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic view of the anchor cable of the present invention;
FIG. 3 is a schematic view of the present invention at the location of the stiffener;
FIG. 4 is a schematic view of a second grout hole of the present invention;
FIG. 5 is a schematic view of the first positioning assembly or the second positioning assembly of the present invention;
FIG. 6 is a schematic view of the interior of the stationary barrel of the present invention;
FIG. 7 is a schematic view of a slider of the present invention;
FIG. 8 is a schematic view of the roller assembly of the present invention;
fig. 9 is a schematic view of the guide post of the present invention.
Wherein, 1, an anchoring plate; 2. an anchoring hole; 3. an intermediate enlarged body; 4. a reinforcing plate; 5. a first positioning assembly; 6. a bottom enlarged body; 7. an anchor cable; 8. a second positioning assembly; 9. an anchor plug; 10. a movable rod; 11. a fixed cylinder; 12. positioning a plate; 13. reinforcing the transverse ribs; 14. a reinforcing ring; 15. an anchor sleeve; 16. fixing the coil; 17. positioning holes; 18. a first grouting hole; 19. reinforcing the inclined ribs; 20. a second grouting hole; 21. a reinforcement hole; 22. a spring; 23. a movable plug; 24. an end cap; 25. a slider; 26. a wheel carrier; 27. a roller; 28. a guide post; 29. and (4) a slide hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example (b):
as shown in fig. 1-9, an embodiment of the present invention provides an automatic-centering anchor cable with a jet grouting enlarged head, which includes an anchor cable 7 and a first positioning assembly 5, where the first positioning assembly 5 includes a positioning plate 12, a fixed cylinder 11, and a movable rod 10, the outer side of the positioning plate 12 is provided with a plurality of fixed cylinders 11 uniformly distributed, the fixed cylinder 11 is internally connected with a spring 22, one end of the spring 22 is connected with a movable plug 23, one side of the movable plug 23 is fixedly connected with the movable rod 10, the movable rod 10 can be extended and retracted in the fixed cylinder 11 through the spring 22, so as to adapt to anchor holes 2 with different diameters, one end of the fixed cylinder 11 is provided with a sliding hole 29, the outer side of the movable rod 10 is slidably connected to the inner side of the sliding hole 29, the center of the positioning plate 12 is provided with a first grouting hole 18, so as to facilitate placing a drill rod and grouting by using the first grouting hole 18, the outer side of the positioning plate 12 adjacent to the first grouting hole 18 is provided with a positioning hole 17, the positioning holes 17 facilitate the penetration of the anchor cable 7, the first positioning assembly 5 is installed outside the anchor cable 7, the plurality of anchor cables 7 can be installed by arranging the plurality of positioning holes 17 on the positioning plate 12, the movable rod 10 can be stretched in the fixed cylinder 11 through the spring 22, the movable rod 10 can smoothly enter the bottom expanded body 6 in the process of propelling the anchor cable 7, the anchor cable 7 is prevented from deviating from the anchoring hole 2 and automatically aligns to the anchoring hole 2, the uniform distribution is always kept, the stress is balanced, the anchoring force can be increased, the overall anti-pulling capacity is improved, the reinforcing plate 4 is arranged on one side of the outer side of the anchor cable 7 adjacent to the first positioning assembly 5, the second grouting hole 20 is arranged at the center of the reinforcing plate 4, the drill rod and grouting are conveniently placed by utilizing the second grouting hole 20, the reinforcing hole 21 is arranged in the outer side of the reinforcing plate 4 adjacent to the first grouting hole 18, the anchor cable 7 sequentially penetrates through the positioning holes 17 and the reinforcing hole 21, the edge of reinforcing plate 4 is fixedly connected with a plurality of evenly distributed strengthen horizontal muscle 13, strengthens the one end fixedly connected with reinforcing ring 14 of horizontal muscle 13. A plurality of anchor cables 7 are installed through the positioning holes 17 and the reinforcing holes 21, the anchor cables 7 are supported through the reinforcing plates 4, and the strength is improved through the reinforcing transverse ribs 13 and the reinforcing rings 14, so that the anchoring force after the anchor cables are installed is enhanced, the contact area between the anchor cables and grouting bodies is increased, and the grouting effect is improved.
The number of the fixed cylinders 11 is four or six. The number of the fixed cylinders 11 can be selected according to the environmental requirements, so that the central axis of the positioning plate 12 is kept on the central axis of the anchoring hole 2 in the moving process, and the anchor cable 7 is conveniently aligned to the bottom of the anchoring hole 2.
The diameter of the sliding hole 29 is smaller than that of the movable plug 23, so that the movable plug 23 is prevented from falling off from the sliding hole 29, and an anti-blocking structure is arranged at one end of the movable rod 10 far away from the sliding hole 29. The friction is reduced by the anti-blocking structure, so that the first positioning component 5 can move conveniently.
The anti-jamming structure is one of a sliding block 25, a guide post 28 or a roller assembly, wherein the roller assembly comprises a wheel frame 26 and a roller 27 arranged at one end of the wheel frame 26, and the other end of the wheel frame 26 is fixedly connected to one end of the movable rod 10. The slide block 25, the guide post 28 or the roller assembly is used for facilitating the movement of the movable rod 10 on the inner wall of the anchoring hole 2.
The other end of the fixed cylinder 11 is provided with an end cover 24, one side of the end cover 24 is tightly connected to the other end of the spring 22, and the other side of the end cover 24 is fixedly connected to the outer side of the positioning plate 12. Through fixing end cover 24 in the locating plate 12 outside, end cover 24 is connected with modes such as fixed section of thick bamboo 11 threaded connection or joint, is convenient for install and dismantle fixed section of thick bamboo 11, is convenient for assemble spring 22, activity stopper 23, movable rod 10.
The number of the positioning holes 17 is the same as that of the anchor cables 7, and the number of the positioning holes is four. The number of reinforcement holes 21 is the same as the number of anchor cables 7, and is four. Facilitating the installation of the anchor cable 7.
Strengthen the one end fixedly connected with of horizontal muscle 13 and strengthen the brace 19, strengthen the one end fixed connection of brace 19 in the outside of second grout hole 20 to strengthen brace 19 and strengthen hole 21 alternate distribution. The reinforcing inclined ribs 19 and the reinforcing transverse ribs 13 form a triangle, so that the strength and the stability are increased, and the anchoring force of the anchor cable is increased conveniently.
The outer side of the anchor cable 7 is provided with a second positioning component 8, the second positioning component 8 is the same as the first positioning component 5 in structure, and the second positioning component 8 and the first positioning component 5 are respectively positioned on two sides of the reinforcing plate 4. Two positioning assemblies can be arranged on the outer side of the anchor cable 7, so that the anchoring force is increased, and the overall anti-pulling capacity is improved.
One end of the anchor cable 7 is provided with an anchor sleeve 15, the other end of the anchor cable 7 is provided with an anchor plate 1, one side of the anchor plate 1 is provided with an anchor plug 9, the other side of the anchor plate 1 is provided with a fixed helicoidal ring 16, and the anchor plug 9 and the fixed helicoidal ring 16 are both connected to the outer side of the anchor cable 7.
The use method of the self-centering jet grouting enlarged head anchor cable comprises the following steps:
setting a drilling direction and a drilling position according to a specified anchor rod position and an anchor rod body hole forming direction by using a high-pressure automatic rotating nozzle, pressing cement paste into the drill rod from the rear end part of the drill rod through a high-pressure pump, gradually pressing the cement paste into the high-pressure automatic rotating nozzle, outwards spraying the cement paste by using the high-pressure automatic rotating nozzle, and gradually pushing the cement paste forwards to form an anchoring hole 2;
step two, in the process of pushing the high-pressure automatic rotating nozzle forwards, according to the preset appointed enlarged hole positions at the middle part and the bottom part of the anchoring hole 2, the high-pressure automatic rotating nozzle is used for staying and cutting at the appointed enlarged hole positions to form a middle enlarged body 3 and a bottom enlarged body 6;
and step three, pulling out the drill rod and the high-pressure automatic rotary sprayer, sequentially penetrating the anchor cable 7 through a positioning hole of the second positioning component 8, a reinforcing hole 21 in the reinforcing plate 4 and a positioning hole 17 in the first positioning component 5, then fixing, wherein the distance between the second positioning component 8 and the first positioning component 5 is equal to the distance between the middle expansion body 3 and the bottom expansion body 6, inserting the first positioning component 5 into the bottom expansion body 6 in the anchoring hole 2 by using the anchor cable 7, inserting the second positioning component 8 into the middle expansion body 3, finally fixing the anchor cable 7 by using the anchoring plate 1 and the fixed spiral ring 16, injecting cement slurry by using the first grouting hole 18 and the second grouting hole 20, and forming the high-pressure rotary sprayer anchor cable expansion head.
Through installing first locating component 5 outside anchor rope 7, can install a plurality of anchor ropes 7 through setting up a plurality of locating holes 17 on locating plate 12, can make movable rod 10 stretch out and draw back in fixed cylinder 11 through spring 22, at the in-process that impels anchor rope 7, movable rod 10 can get into bottom enlarged part 6 smoothly, prevent anchor rope 7 skew anchor hole 2, anchor rope 7 can aim at anchor hole 2 bottom automatically, remain evenly distributed throughout, the atress is balanced, utilize locating hole 17 and reinforcing hole 21 to install many anchor ropes 7, second grout hole 20, first grout hole 18 is convenient for place drilling rod and grout, support anchor rope 7 through reinforcing plate 4, utilize reinforcing cross bar 13 and reinforcing ring 14 to improve intensity, the area of contact between anchor rope and the grout body has been increased, and the slip casting effect has been improved, can increase anchoring force simultaneously, improve whole resistance to plucking.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides an automatic whirl of centering spouts enlarged footing anchor rope, includes anchor rope (7) and first locating component (5), its characterized in that: the first positioning assembly (5) comprises a positioning plate (12), a fixed cylinder (11) and a movable rod (10), the outer side of the positioning plate (12) is provided with a plurality of uniformly distributed fixed cylinders (11), the inner part of the fixed cylinder (11) is connected with a spring (22), one end of the spring (22) is connected with a movable plug (23), one side of the movable plug (23) is fixedly connected with the movable rod (10), one end of the fixed cylinder (11) is provided with a sliding hole (29), the outer side of the movable rod (10) is connected to the inner side of the sliding hole (29) in a sliding manner, a first grouting hole (18) is formed in the center of the positioning plate (12), a positioning hole (17) is formed in the outer side of the positioning plate (12) adjacent to the first grouting hole (18), and a reinforcing plate (4) is arranged on one side of the outer side of the anchor cable (7) adjacent to the first positioning assembly (5), the center department of reinforcing plate (4) is provided with second grout hole (20), be provided with in the outside of the adjacent first grout hole (18) of reinforcing plate (4) and strengthen hole (21), anchor rope (7) pass in proper order locating hole (17) and strengthen hole (21), the horizontal muscle (13) of a plurality of evenly distributed's of enhancement of edge fixedly connected with of reinforcing plate (4), strengthen the one end fixedly connected with reinforcing ring (14) of horizontal muscle (13).
2. The self-centering jet grouting enlarged head anchor cable according to claim 1, wherein: the number of the fixed cylinders (11) is four or six.
3. The self-centering jet grouting enlarged head anchor cable according to claim 1, wherein: the diameter of the sliding hole (29) is smaller than that of the movable plug (23), and one end, far away from the sliding hole (29), of the movable rod (10) is provided with an anti-blocking structure.
4. The self-centering jet grouting enlarged head anchor cable according to claim 3, wherein: the anti-blocking structure is one of a sliding block (25), a guide post (28) or a roller assembly, wherein the roller assembly comprises a wheel carrier (26) and a roller (27) arranged at one end of the wheel carrier (26), and the other end of the wheel carrier (26) is fixedly connected to one end of the movable rod (10).
5. The self-centering jet grouting enlarged head anchor cable according to claim 1, wherein: the other end of the fixed cylinder (11) is provided with an end cover (24), one side of the end cover (24) is tightly connected to the other end of the spring (22), and the other side of the end cover (24) is fixedly connected to the outer side of the positioning plate (12).
6. The self-centering jet grouting enlarged head anchor cable according to claim 1, wherein: the number of the positioning holes (17) is the same as that of the anchor cables (7), and the number of the reinforcing holes (21) is four, and the number of the reinforcing holes is the same as that of the anchor cables (7).
7. The self-centering jet grouting enlarged head anchor cable according to claim 1, wherein: strengthen one end fixedly connected with of horizontal muscle (13) and strengthen diagonal muscle (19), strengthen the one end fixed connection of diagonal muscle (19) in the outside of second grout hole (20), and strengthen diagonal muscle (19) with strengthen hole (21) distribution in turn.
8. The self-centering jet grouting enlarged head anchor cable according to claim 1, wherein: and a second positioning component (8) is arranged on the outer side of the anchor cable (7), the second positioning component (8) is the same as the first positioning component (5) in structure, and the second positioning component (8) and the first positioning component (5) are respectively positioned on two sides of the reinforcing plate (4).
9. The self-centering jet grouting enlarged head anchor cable according to claim 1, wherein: the anchor rod is characterized in that one end of the anchor rod (7) is provided with an anchor sleeve (15), the other end of the anchor rod (7) is provided with an anchor plate (1), one side of the anchor plate (1) is provided with an anchor plug (9), the other side of the anchor plate (1) is provided with a fixed helicoidal ring (16), and the anchor plug (9) and the fixed helicoidal ring (16) are both connected to the outer side of the anchor rod (7).
10. A method of using a self-centering jet-grouting enlarged head cable bolt according to any one of claims 1 to 9, wherein: the method comprises the following steps:
setting a drilling direction and a drilling position according to a specified anchor rod position and an anchor rod body hole forming direction by using a high-pressure automatic rotating nozzle, pressing cement paste into the drill rod from the rear end part of the drill rod through a high-pressure pump, gradually pressing the cement paste into the high-pressure automatic rotating nozzle, spraying the cement paste outwards through the high-pressure automatic rotating nozzle, and gradually pushing the cement paste forwards to form an anchoring hole (2);
step two, in the process of forward pushing the high-pressure automatic rotating spray head, according to the preset appointed enlarged hole positions at the middle part and the bottom part of the anchoring hole (2), the high-pressure automatic rotating spray head is used for staying and cutting at the appointed enlarged hole positions to form a middle enlarged body (3) and a bottom enlarged body (6);
and thirdly, pulling out the drill rod and the high-pressure automatic rotary sprayer, enabling the anchor cable (7) to sequentially penetrate through a positioning hole of the second positioning component (8), a reinforcing hole (21) in the reinforcing plate (4) and a positioning hole (17) in the first positioning component (5) and then be fixed, enabling the distance between the second positioning component (8) and the first positioning component (5) to be equal to the distance between the middle expanding body (3) and the bottom expanding body (6), inserting the first positioning component (5) into the bottom expanding body (6) in the anchoring hole (2) by using the anchor cable (7), inserting the second positioning component (8) into the middle expanding body (3), fixing the anchor cable (7) through the anchoring plate (1) and the fixed spiral ring (16), injecting cement slurry into the first grouting hole (18) and the second grouting hole (20), and forming the high-pressure rotary spraying expanding head anchor cable.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210184421.9A CN114482039A (en) | 2022-02-24 | 2022-02-24 | Automatic centering jet grouting enlarged footing anchor cable |
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| CN202210184421.9A CN114482039A (en) | 2022-02-24 | 2022-02-24 | Automatic centering jet grouting enlarged footing anchor cable |
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| KR100766450B1 (en) * | 2006-08-10 | 2007-10-17 | (주)신화소일테크 | The anchor construction method in soft ground of gaving used the foundation fixing anchor and this shich consisted of fixing supporter |
| CN201056703Y (en) * | 2007-04-26 | 2008-05-07 | 中国科学院武汉岩土力学研究所 | Pressure dispersion type monitoring device for applied force condition of anchor wire |
| CN109763486A (en) * | 2019-01-20 | 2019-05-17 | 王琪 | A kind of displaced type rotary jet grouting anchor pole and construction method |
| CN111535313A (en) * | 2020-05-09 | 2020-08-14 | 中国联合工程有限公司 | Assembled sleeve enlarged footing soil nail device and construction method thereof |
| CN214738146U (en) * | 2021-02-08 | 2021-11-16 | 中国电建集团贵州电力设计研究院有限公司 | Anchor rod structure for supporting slope of power transmission line tower |
| CN214940099U (en) * | 2021-02-22 | 2021-11-30 | 大连理工大学 | Environment-friendly tension-compression composite dispersed anchor rod |
-
2022
- 2022-02-24 CN CN202210184421.9A patent/CN114482039A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100766450B1 (en) * | 2006-08-10 | 2007-10-17 | (주)신화소일테크 | The anchor construction method in soft ground of gaving used the foundation fixing anchor and this shich consisted of fixing supporter |
| CN201056703Y (en) * | 2007-04-26 | 2008-05-07 | 中国科学院武汉岩土力学研究所 | Pressure dispersion type monitoring device for applied force condition of anchor wire |
| CN109763486A (en) * | 2019-01-20 | 2019-05-17 | 王琪 | A kind of displaced type rotary jet grouting anchor pole and construction method |
| CN111535313A (en) * | 2020-05-09 | 2020-08-14 | 中国联合工程有限公司 | Assembled sleeve enlarged footing soil nail device and construction method thereof |
| CN214738146U (en) * | 2021-02-08 | 2021-11-16 | 中国电建集团贵州电力设计研究院有限公司 | Anchor rod structure for supporting slope of power transmission line tower |
| CN214940099U (en) * | 2021-02-22 | 2021-11-30 | 大连理工大学 | Environment-friendly tension-compression composite dispersed anchor rod |
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