CN220909733U - Sectional grouting anchor cable - Google Patents
Sectional grouting anchor cable Download PDFInfo
- Publication number
- CN220909733U CN220909733U CN202322612537.0U CN202322612537U CN220909733U CN 220909733 U CN220909733 U CN 220909733U CN 202322612537 U CN202322612537 U CN 202322612537U CN 220909733 U CN220909733 U CN 220909733U
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- Prior art keywords
- grouting
- sectional
- nozzle
- anchor cable
- cable
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- 239000007921 spray Substances 0.000 claims abstract description 36
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 238000004873 anchoring Methods 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 230000000712 assembly Effects 0.000 claims description 7
- 238000000429 assembly Methods 0.000 claims description 7
- 230000000694 effects Effects 0.000 abstract description 12
- 238000007569 slipcasting Methods 0.000 abstract description 9
- 230000009467 reduction Effects 0.000 abstract description 2
- 239000002002 slurry Substances 0.000 description 20
- 239000011435 rock Substances 0.000 description 11
- 239000011440 grout Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 238000009792 diffusion process Methods 0.000 description 4
- 230000002776 aggregation Effects 0.000 description 3
- 238000004220 aggregation Methods 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005536 corrosion prevention Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Piles And Underground Anchors (AREA)
Abstract
The utility model belongs to the technical field of grouting equipment, and discloses a sectional grouting anchor cable, which is provided with a grouting cable body; the grouting cable body is provided with a first grouting hole, and a sectional grouting nozzle is fixed in the first grouting hole; the sectional grouting spray heads are provided with a plurality of spray head components which are connected in sequence, and the diameters of the spray head components are reduced in sequence; one end of the sectional grouting spray head is provided with a connecting section, and paddles are arranged in the connecting section; a spiral supercharging device is arranged in a nozzle assembly at the tail end of the sectional grouting nozzle. Through setting up sectional type slip casting shower nozzle can increase the slip casting pressure of slip casting anchor rope when the slip casting when realizing flexible reduction volume, and then the slip casting volume of control slip casting anchor rope under different degree of depth to reach the technical effect of slip casting uniformity, increase slip casting scope.
Description
Technical Field
The utility model belongs to the technical field of grouting equipment, and particularly relates to a sectional grouting anchor cable.
Background
The grouting anchor cable is an anchor rod used for reinforcing geotechnical engineering, grout is injected into surrounding rock cracks in a grouting mode to solidify broken rock bodies, improve the rock bodies and separate underground water and rod body corrosion prevention, so that a good support purpose is achieved. The grouting anchor cable can improve the mechanical property of surrounding rock and prevent the problems of surrounding rock breaking, support failure, water seepage and the like of a roadway.
The prior grouting anchor cable generally uses a grouting plug to plug slurry at an orifice during grouting, and the slurry is reversely injected into surrounding rock cracks from inside to outside after coming out from the front end of a grouting core pipe. The grouting anchor cable has less grout injected into deep holes or geology compaction sections, and the grout is very uneven in diffusion and permeation, so that the grouting effect is poor.
Disclosure of utility model
In order to solve the problems in the prior art, the utility model provides a sectional grouting anchor cable.
The embodiment of the utility model provides a sectional grouting anchor cable, which is provided with a grouting cable body;
The grouting cable body is provided with a first grouting hole, and a sectional grouting nozzle is fixed in the first grouting hole; the sectional grouting spray heads are provided with a plurality of spray head components which are connected in sequence, and the diameters of the spray head components are reduced in sequence;
One end of the sectional grouting spray head is provided with a connecting section, and paddles are arranged in the connecting section; a spiral supercharging device is arranged in a nozzle assembly at the tail end of the sectional grouting nozzle.
Preferably, the nozzle assemblies are provided in three, and the three nozzle assemblies include a preliminary nozzle assembly, a middle nozzle assembly, and a final nozzle assembly, wherein the diameters of the preliminary nozzle assembly, the middle nozzle assembly, and the final nozzle assembly are sequentially reduced.
Preferably, the connecting section is fixedly connected with the primary nozzle assembly, and the spiral supercharging device is arranged in the tail nozzle assembly.
Preferably, the spiral supercharging device is provided with a fixing seat, a connecting column is arranged on the fixing seat, and spiral blades are arranged on the outer side of the connecting column; the fixing seat is fixedly connected with the inner wall of the spray head assembly.
Preferably, a guide protrusion is provided on an inner wall of the spray head assembly.
Preferably, the grouting cable body is provided with a grouting hose, and a steel strand layer is arranged on the outer side of the grouting hose;
One end of the grouting cable body is provided with a lock, the other end of the grouting cable body is provided with an anchoring head, a plurality of second grouting holes are formed in the anchoring head, and the sectional grouting spray heads are arranged in the second grouting holes;
The grouting cable body is further provided with a tray, and the first grouting port is arranged between the tray and the anchoring head.
Preferably, a plurality of first grouting holes are formed, and the plurality of grouting holes are uniformly formed at preset distances; a grouting stopping ring is arranged between two adjacent grouting holes, and the grouting stopping ring is fixed on the grouting cable body.
According to the sectional grouting anchor cable provided by the embodiment of the utility model, the sectional grouting nozzle is arranged, so that the grouting pressure of the grouting anchor cable during grouting can be increased while the expansion and the reduction of the volume are realized, and the grouting quantity of the grouting anchor cable at different depths is controlled, so that the technical effects of uniform grouting and wide grouting range are achieved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments of the present application will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of a grouting anchor cable according to an embodiment of the present utility model;
fig. 2 is a schematic structural diagram of a grouting cable according to an embodiment of the present utility model;
FIG. 3 is an expanded schematic view of a sectional grouting nozzle according to an embodiment of the present utility model;
fig. 4 is a structural folding schematic diagram of a sectional grouting nozzle according to an embodiment of the present utility model.
In the figure, 1, grouting rope body; 2. a first grouting hole; 3. sectional grouting spray head; 4. a spray head assembly; 5. a connection section; 6. a paddle; 7. a spiral supercharging device; 8. a first-stage spray head assembly; 9. a middle section nozzle assembly; 10. a terminal spray head assembly; 11. a fixing seat; 12. a connecting column; 13. a helical blade; 14. a flow guiding protrusion; 15. grouting hose; 16. a steel strand layer; 17. a lock; 18. an anchor head; 19. a second grouting hole; 20. a tray; 21. and a slurry stopping circular ring.
Detailed Description
The present utility model will be described in further detail with reference to the following examples in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
Aiming at the problems existing in the prior art, the utility model provides a sectional grouting anchor cable, and the utility model is described in detail below with reference to the accompanying drawings.
As shown in fig. 1 to 4, the grouting anchor cable provided in the embodiment of the utility model includes: the grouting cable body 1, a first grouting hole 2, a sectional grouting spray head 3, a spray head assembly 4, a connecting section 5, a blade 6, a spiral supercharging device 7, a primary spray head assembly 8, a middle spray head assembly 9, a tail spray head assembly 10, a fixed seat 11, a connecting column 12, a spiral blade 13, a guide boss 14, a grouting hose 15, a steel strand 16, a lock 17, an anchor head 18, a second grouting hole 19, a tray 20 and a grouting stopping ring 21.
The grouting anchor cable provided by the embodiment of the utility model is provided with a grouting cable body 1. In this embodiment, the grouting cable 1 is preferably provided with a grouting hose 15, and a steel strand layer 16 is provided outside the grouting hose 15.
Specifically, steel strand layer 16 may include a plurality of steel strands. A plurality of steel strands may be spirally wound around the grouting hose 15, thereby forming the above-mentioned steel strand layer 16 outside the grouting hose 15.
In this embodiment, a first grouting hole 2 is formed in the grouting cable body 1, and a segmented grouting nozzle 3 is fixed in the first grouting hole 2. Wherein, sectional type slip casting shower nozzle 3 is provided with a plurality of shower nozzle subassemblies 4 that connect gradually, and the diameter of a plurality of shower nozzle subassemblies 4 reduces in proper order.
Further, one end of the sectional grouting nozzle 3 is provided with a connecting section 5, and a paddle 6 is arranged in the connecting section 5; a screw pressurizing device 7 is arranged in the spray head assembly 4 at the tail end of the sectional type grouting spray head 3. In this embodiment, the connection section 5 is fixedly connected to the preliminary nozzle assembly 8, and the screw pressurizing device 7 is disposed in the final nozzle assembly 10.
The sectional grouting nozzle 3 is arranged on the first grouting hole 2 of the grouting cable body 1, so that grouting pressure can be increased. Specifically, the paddle 6 can realize stirring of the slurry and adjustment of the inflow form of the slurry, so that the slurry is more fully mixed, and the grouting effect is improved; simultaneously, the spiral supercharging device 7 can further achieve turbulent flow and slurry aggregation of the slurry, so that the supercharging effect is further improved, and good adhesive aggregation force of the slurry is fully exerted.
In an alternative embodiment, three shower head assemblies 4 are provided, and the three shower head assemblies 4 include a preliminary shower head assembly 8, a middle shower head assembly 9, and a final shower head assembly 10, wherein diameters of the preliminary shower head assembly 8, the middle shower head assembly 9, and the final shower head assembly 10 are sequentially reduced.
Further, in the actual use process, the size (such as diameter, length, etc.) of the nozzle assembly of the segmented grouting nozzle can be adjusted to realize the adjustment of grouting pressure. In this embodiment, each of the head assemblies 4 may be provided in a circular truncated cone shape having different diameters at both ends.
The diameters of the primary nozzle assembly 8, the middle nozzle assembly 9 and the tail nozzle assembly 10 are sequentially reduced, so that the telescopic function of the sectional grouting nozzle 3 is realized. In the grouting preparation stage, the middle section nozzle assembly 9 and the end nozzle assembly 10 can be telescopic into the primary nozzle assembly 8, and in the grouting process, the middle section nozzle assembly 9 and the end nozzle assembly 10 can be ejected out of the primary nozzle assembly 8 through the pressure of slurry.
The diameter of the whole grouting cable body 1 can be reduced through the telescopic sectional grouting nozzle 3, so that the need of additionally enlarging the drilling diameter due to the existence of the grouting nozzle is avoided; meanwhile, the damage to the segmented grouting nozzle 3 in the process of extending the grouting cable body 1 into a drill hole can be reduced, so that the segmented grouting nozzle 3 is protected, and the integrity and the functionality of the segmented grouting nozzle 3 are protected.
In an alternative embodiment, the spiral supercharging device 7 is provided with a fixed seat 11, a connecting column 12 is arranged on the fixed seat 11, and a spiral blade 13 is arranged outside the connecting column 12; the fixed seat 11 is fixedly connected with the inner wall of the spray head assembly 4.
In the grouting process, the spiral pressurizing device 7 can be rotated due to pressure brought by the slurry passing, so that the spiral pressurizing device 7 plays a pressurizing function.
Further, a guide projection 14 is provided on the inner wall of the head assembly 4. In this embodiment, the flow guiding protrusion 14 can also achieve the effects of turbulence and slurry aggregation on the slurry, so that the pressurizing effect and grouting effect during grouting are further improved through matching with the spiral pressurizing device 7.
In an alternative embodiment, one end of the grouting cable body 1 is provided with a lock 17, the other end of the grouting cable body 1 is provided with an anchoring head 18, a plurality of second grouting holes 19 are formed in the anchoring head 18, and the second grouting holes 19 are internally provided with the sectional grouting spray heads 3.
The diameter of the sectional grouting nozzle 3 on the anchoring head 18 can be smaller than that of the sectional grouting nozzle 3 on the grouting cable body 1, so that the high-pressure requirement of deep grouting is facilitated, the grouting range is enlarged, and the grouting effect is improved.
Further, the grouting cable body 1 is further provided with a tray 20, and the first grouting port is arranged between the tray 20 and the anchor head 18. The tray 20 may be used to secure and support the grouting cable 1.
In an alternative embodiment, a plurality of first grouting holes 2 are formed, and the plurality of grouting holes are uniformly formed at preset distances; a grouting stopping ring 21 is arranged between two adjacent grouting holes, and the grouting stopping ring 21 is fixed on the grouting cable body 1.
In the actual use process, the positions of the first grouting holes on the grouting cable body can be distributed and adjusted according to grouting requirements of different depths of surrounding rock to be reinforced, so that the surrounding rock can be reinforced in a targeted manner. Alternatively, their respective segmented grouting heads 3 differ in diameter depending on the distance of the grouting holes relative to the tray 20. Specifically, the diameter of the segmented grouting nozzle 3 on the grouting hole, which is farther from the tray 20, is smaller to increase the grouting pressure.
Through a plurality of grouting holes, the problem of non-uniform grouting liquid diffusion and seepage can be solved, sectional type pressurization grouting reinforcement is carried out on deep surrounding rock, the effective grouting quantity of deep crack surrounding rock is increased, high-pressure grouting under the whole length of an anchor cable is realized, the grouting effect is uniform, the diffusion reinforcement range is large, meanwhile, the proportion of slurry without reinforcement effect is reduced, materials are saved, and the efficiency is improved.
Meanwhile, on the premise of not changing grouting pressure of a grouting machine, grouting pressure at each section position can be controlled by adjusting the diameter of the sectional grouting nozzle 3, so that the problems of too small slurry diffusion range and poor reinforcing effect at deep surrounding rock are solved, re-grouting is not needed, grouting performance is greatly improved, meanwhile, construction speed is improved, and unnecessary waste of slurry is reduced by adjusting pressure in sections.
The grout stopping ring 21 is made of soft materials, so that grout leakage can be prevented, the problem that the size of a drilled hole is difficult to match with that of a grout stopping plug is solved, the sealing and grout stopping functions are achieved, and the adaptability of the grout stopping ring 21 to lithology drilled holes is improved. Meanwhile, a plurality of sectional grouting spray heads 3 can be further arranged through the plurality of first grouting holes 2. The plurality of sectional grouting spray heads 3 are matched with the grouting stop ring 21, so that the purpose of sectional grouting is achieved.
In the actual use process, the grouting anchor cable is fixed to the grouting port through the lock 17, and in the preparation stage, the plurality of sectional grouting spray heads 3 are in a contracted state, and the grouting anchor cable extends into the grouting port, so that the preparation stage is completed. In the grouting process, the slurry sequentially flows through the sectional grouting spray heads 3 through grouting anchor cables, the sectional grouting spray heads 3 are in an extending state due to the pressure of the slurry, the slurry enters the spray head assembly 4 after being stirred by the paddles 6, and flows out of a grouting opening under the turbulence and slurry gathering effects of the guide bosses 14 and the spiral supercharging device.
In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front," "rear," "head," "tail," and the like are used as an orientation or positional relationship based on that shown in the drawings, merely to facilitate description of the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The foregoing is merely illustrative of specific embodiments of the present utility model, and the scope of the utility model is not limited thereto, but any modifications, equivalents, improvements and alternatives falling within the spirit and principles of the present utility model will be apparent to those skilled in the art within the scope of the present utility model.
Claims (7)
1. The sectional grouting anchor cable is characterized in that the grouting anchor cable is provided with a grouting cable body;
The grouting cable body is provided with a first grouting hole, and a sectional grouting nozzle is fixed in the first grouting hole; the sectional grouting spray heads are provided with a plurality of spray head components which are connected in sequence, and the diameters of the spray head components are reduced in sequence;
One end of the sectional grouting spray head is provided with a connecting section, and paddles are arranged in the connecting section; a spiral supercharging device is arranged in a nozzle assembly at the tail end of the sectional grouting nozzle.
2. The segmented grouting anchor cable of claim 1, wherein the head assemblies are provided in three, the three head assemblies comprising a primary head assembly, a middle head assembly and a terminal head assembly, wherein the diameters of the primary head assembly, the middle head assembly and the terminal head assembly decrease in sequence.
3. The segmented grouting anchor cable of claim 2, wherein the connector segment is fixedly connected to the primary segment nozzle assembly and the screw booster is disposed within the terminal nozzle assembly.
4. The segmented grouting anchor cable of claim 1, wherein the spiral supercharging device is provided with a fixing seat, a connecting column is arranged on the fixing seat, and spiral blades are arranged on the outer side of the connecting column; the fixing seat is fixedly connected with the inner wall of the spray head assembly.
5. The segmented grouting anchor cable of claim 1, wherein the inner wall of the sprinkler head assembly is provided with deflector bosses.
6. The segmented grouting anchor cable of claim 1, wherein the grouting cable body is provided with a grouting hose, and a steel strand layer is arranged outside the grouting hose;
One end of the grouting cable body is provided with a lock, the other end of the grouting cable body is provided with an anchoring head, a plurality of second grouting holes are formed in the anchoring head, and the sectional grouting spray heads are arranged in the second grouting holes;
the grouting cable body is further provided with a tray, and the first grouting holes are formed between the tray and the anchoring heads.
7. The segmented grouting anchor cable of claim 1, wherein the first grouting holes are provided in plurality, and the grouting holes are uniformly arranged at a preset distance; a grouting stopping ring is arranged between two adjacent grouting holes, and the grouting stopping ring is fixed on the grouting cable body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322612537.0U CN220909733U (en) | 2023-09-26 | 2023-09-26 | Sectional grouting anchor cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322612537.0U CN220909733U (en) | 2023-09-26 | 2023-09-26 | Sectional grouting anchor cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220909733U true CN220909733U (en) | 2024-05-07 |
Family
ID=90918012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322612537.0U Active CN220909733U (en) | 2023-09-26 | 2023-09-26 | Sectional grouting anchor cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220909733U (en) |
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2023
- 2023-09-26 CN CN202322612537.0U patent/CN220909733U/en active Active
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| GR01 | Patent grant | ||
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