CN220336931U - Grouting anchor rod device for tunnel construction - Google Patents
Grouting anchor rod device for tunnel construction Download PDFInfo
- Publication number
- CN220336931U CN220336931U CN202322004238.9U CN202322004238U CN220336931U CN 220336931 U CN220336931 U CN 220336931U CN 202322004238 U CN202322004238 U CN 202322004238U CN 220336931 U CN220336931 U CN 220336931U
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- China
- Prior art keywords
- anchor
- grouting
- rod body
- anchor rod
- tunnel construction
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- 238000010276 construction Methods 0.000 title claims abstract description 38
- 238000007789 sealing Methods 0.000 claims abstract description 11
- 239000011440 grout Substances 0.000 claims abstract description 10
- 238000007569 slipcasting Methods 0.000 claims abstract description 3
- 230000000694 effects Effects 0.000 abstract description 5
- 238000004873 anchoring Methods 0.000 description 19
- 239000002689 soil Substances 0.000 description 6
- 238000009434 installation Methods 0.000 description 5
- 239000011435 rock Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005553 drilling Methods 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
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
Landscapes
- Piles And Underground Anchors (AREA)
Abstract
The utility model discloses a grouting anchor rod device for tunnel construction, which comprises an anchor rod body, nut pieces, gaskets and sealing plugs, wherein the anchor rod body is of a hollow structure, one end of the anchor rod body is provided with a tip part, the other end of the anchor rod body is provided with a grouting opening, a plurality of anchor bolt holes are axially formed in the pipe wall of the anchor rod body, an anchor piece is screwed in each anchor bolt hole, one end of the anchor piece is provided with the tip part, the other end of the anchor piece is provided with an anchor bolt bevel gear, and the anchor piece penetrates through the anchor rod body to be anchored in a stratum by rotating the anchor bolt bevel gear; the anchor rod body corresponding to the anchor bolt hole is provided with a grout outlet hole; the sealing plug, the gasket and the nut piece are sequentially sleeved at the grouting port setting end of the anchor rod body. The problem of current cavity slip casting stock anchor effect poor, the anchor distance is shorter is solved.
Description
Technical Field
The utility model relates to the technical field of grouting anchor rods for tunnel construction, in particular to a grouting anchor rod device for tunnel construction.
Background
The grouting anchor rod is a basic component for reinforcing a main body of a roadway support in a slope, a tunnel, a dam body and a coal mine; the grouting anchor rod is used as a tension member penetrating into the stratum, one end of the grouting anchor rod is connected with an engineering structure, the other end of the grouting anchor rod penetrates into the stratum, the whole anchor rod comprises a free section and an anchoring section, and the free section is an area for transmitting the tension at the anchor rod head to an anchoring body; the anchoring section is arranged in the soil layer of the tunnel through the cement slurry anchor rod, and the tension force of the free section is transferred to the depth of the soil body.
The common hollow grouting anchor rod has the advantages of multiple technical procedures, unstable quality, short anchoring distance and low grouting pressure and small permeation range in the actual use process, and cannot achieve better anchoring effect.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art, and provides a grouting anchor rod device for tunnel construction, which solves the problems of poor anchoring effect and short anchoring distance of the existing hollow grouting anchor rod.
The utility model is realized by the following technical scheme:
the grouting anchor rod device for tunnel construction comprises an anchor rod body, nut pieces, gaskets and sealing plugs, wherein the anchor rod body is of a hollow structure, one end of the anchor rod body is provided with a tip part, the other end of the anchor rod body is provided with a grouting opening, a plurality of anchor bolt holes are axially formed in the pipe wall of the anchor rod body, each anchor bolt hole is internally and spirally connected with an anchor bolt piece, one end of each anchor bolt piece is provided with the tip part, the other end of each anchor bolt piece is provided with an anchor bolt bevel gear, and the anchor bolt pieces penetrate through the anchor rod body to be anchored in a stratum by rotating the anchor bolt bevel gear; the anchor rod body corresponding to the anchor bolt hole is provided with a grout outlet hole; the sealing plug, the gasket and the nut piece are sequentially sleeved at the grouting port setting end of the anchor rod body.
Compared with the existing hollow grouting anchor rod, the grouting anchor rod device for tunnel construction is provided with a plurality of telescopic anchor rod pieces, the anchor rod body can be provided with the anchor rod pieces, the anchor strength of the anchor rod body can be greatly improved, the setting length of the anchor rod body can be shortened, and the tunnel construction efficiency can be improved due to the setting and installation of the anchor rod; the problem of current cavity slip casting stock anchor effect poor, the anchor distance is shorter is solved.
Further, the device also comprises an anchor piece unfolding device, wherein the anchor piece unfolding device comprises anchor unfolding bevel gears, a screw rod and a screw rod cap, one end of the screw rod is provided with the anchor unfolding bevel gears meshed with the anchor bevel gears, and the screw rod cap is sleeved on the screw rod.
Further, the other end of the screw rod is provided with a rotating head, and the screw rod is driven to rotate on the screw rod cap through the rotating head.
Further, the screw cap is in threaded connection with the grouting port setting end of the anchor rod body.
Further, the anchor rod body is radially and uniformly distributed and surrounds three anchor bolt holes.
Further, the grout outlet is also a mounting hole for an anchor.
Further, an anchor bevel gear arrangement end of the anchor piece is provided with an inner six holes.
Further, the grouting port is provided with an internal thread interface.
Compared with the prior art, the utility model has the following advantages and beneficial effects:
1. compared with the existing hollow grouting anchor rod, the grouting anchor rod device for tunnel construction is provided with a plurality of telescopic anchor rod pieces, the anchor rod body can be provided with the anchor rod pieces, the anchor strength of the anchor rod body can be greatly improved, the setting length of the anchor rod body can be shortened, and the tunnel construction efficiency can be improved due to the setting and installation of the anchor rod; the problems of poor anchoring effect and short anchoring distance of the existing hollow grouting anchor rod are solved;
2. according to the grouting anchor rod device for tunnel construction, the anchor piece unfolding device is provided with the anchor piece unfolding bevel gear creatively, the anchor piece unfolding bevel gear is meshed with the anchor piece bevel gear on the anchor piece to drive the anchor piece unfolding bevel gear to rotate when the screw rod is rotated, and the anchor piece unfolding bevel gear is driven to rotate by the rotation of the anchor piece unfolding bevel gear, so that the anchor piece is anchored in a soil layer, and the anchoring force of anchoring is processed;
3. the grouting anchor rod device for tunnel construction can be repeatedly used, and after one anchor is mounted, other anchor rods can be mounted by dismounting the anchor rod unfolding device.
Drawings
The accompanying drawings, which are included to provide a further understanding of embodiments of the utility model and are incorporated in and constitute a part of this application, illustrate embodiments of the utility model. In the drawings:
FIG. 1 is a schematic structural view of a grouting anchor device for tunnel construction according to the present utility model;
FIG. 2 is a schematic view of the deployment device of the present utility model with anchors;
FIG. 3 is a schematic cross-sectional view of the deployment device with anchor members of the present utility model;
FIG. 4 is a schematic view of the structure of the anchor deployment device of the present utility model;
FIG. 5 is a schematic view of the structure of the anchor of the present utility model;
in the drawings, the reference numerals and corresponding part names:
the device comprises a 1-anchor body, a 2-nut piece, a 3-gasket, a 4-sealing plug, a 5-grouting opening, a 6-anchor screw hole, a 7-anchor piece, an 8-anchor bevel gear, a 9-grouting hole, a 10-anchor unfolding bevel gear, a 11-screw rod, a 12-screw rod cap, a 13-rotating head and a 14-inner six-hole.
Detailed Description
For the purpose of making apparent the objects, technical solutions and advantages of the present utility model, the present utility model will be further described in detail with reference to the following examples and the accompanying drawings, wherein the exemplary embodiments of the present utility model and the descriptions thereof are for illustrating the present utility model only and are not to be construed as limiting the present utility model.
Example 1
As shown in fig. 1-5, the grouting anchor rod device for tunnel construction comprises an anchor rod body 1, a nut member 2, a gasket 3 and a sealing plug 4, wherein the anchor rod body 1 is of a hollow structure, one end of the anchor rod body 1 is provided with a tip part, the other end of the anchor rod body 1 is provided with a grouting opening 5, and the sealing plug 4, the gasket 3 and the nut member 2 are sequentially sleeved at the setting end of the grouting opening 5 of the anchor rod body 1. The structural components are all structures and accessories of the existing hollow grouting anchor rod.
A plurality of anchor bolt holes 6 are axially formed in the pipe wall of the anchor bolt body 1, an anchor bolt piece 7 is screwed in each anchor bolt hole 6, one end of the anchor bolt piece 7 is provided with a tip part, the other end of the anchor bolt piece 7 is provided with an anchor bolt bevel gear 8, and the anchor bolt piece 7 penetrates through the anchor bolt body 1 to be anchored in a tunnel stratum by rotating the anchor bolt bevel gear 8; the anchor rod body 1 corresponding to the anchor bolt hole 6 is provided with a grout outlet hole 9; the part of the anchor piece 7 is in a screw structure, and the anchor bevel gear 8 of the anchor piece 7 is larger than the outer diameter of the screw rod part of the anchor piece 7, so that the grout outlet 9 must pass through the anchor bevel gear 8, the anchor piece 7 is arranged on the anchor body 1 one by one through the grout outlet 9, but the tip part of the anchor piece 7 is not protruded out of the anchor body 1 as long as possible, only the anchor piece 7 is not fallen off, otherwise, the anchor body 1 is inconvenient to be inserted into the anchor hole during anchoring.
The device comprises a screw rod 11, a screw rod cap 12 and an anchor piece unfolding device, wherein the screw rod 11 is provided with an anchor piece unfolding bevel gear 10 meshed with the anchor bevel gear 8, and the screw rod cap 12 is sleeved on the screw rod 11. The outer diameter of the anchor unfolding umbrella teeth 10 is smaller than 5-10mm of the inner hole of the anchor rod body 1, and the anchor unfolding umbrella teeth cannot be penetrated in the inner hole of the anchor rod body 1 too much and cannot fully unfold the anchor piece 7 too little.
When the grouting anchor rod device for tunnel construction is used, firstly, anchor holes are drilled in an excavated tunnel rock layer (in the following embodiment, a self-advancing spiral plate is arranged on the outer ring surface of an anchor rod body 1, the anchor holes can be not drilled, the anchor rod body 1 is directly drilled into the tunnel rock layer through rotation of the anchor rod body 1), the anchor rod body 1 with the anchor rod 7 is inserted into the anchor holes, an anchor rod piece unfolding device is arranged on the anchor rod body 1, specifically, anchor rod unfolding umbrella teeth 10 are inserted into grouting openings 5 of the anchor rod body 1 through a screw rod 11, the anchor rod unfolding umbrella teeth 10 basically abut against anchor rod umbrella gears 8 of the anchor rod 7 at the outermost part of the anchor rod body 1, then, a screw rod cap 12 is arranged on the anchor rod body 1, the screw rod 11 is stretched into the anchor rod body 1 through manual or electric rotation of the screw rod 11, the anchor rod 11 is driven to rotate, and the anchor rod unfolding umbrella teeth 10 are driven to rotate after the anchor rod unfolding umbrella teeth 10 are meshed with the anchor rod umbrella gears 8, the anchor rod piece 7 is driven to rotate; initially, the large end part of the anchor bevel gear 8 is meshed with the small end part of the anchor unfolding bevel gear 10, along with the continuous extending and rotating of the anchor unfolding bevel gear 10, all tooth surfaces of the anchor bevel gear 8 are gradually meshed with the anchor unfolding bevel gear 10, along with the continuous unfolding of the anchor piece 7, the anchor bevel gear 8 gradually slides from the small end to the large end of the anchor unfolding bevel gear 10 until the tooth surfaces of the anchor unfolding bevel gear 10 fall off, so that the anchor piece 7 in the radial direction is unfolded and anchored, along with the continuous extending of the anchor unfolding bevel gear 10 into the anchor rod body 1, the next group of anchor pieces 7 are driven to be unfolded and anchored, after the anchor unfolding bevel gear 10 extends into the bottom of the anchor rod body 1, all the anchor pieces 7 are unfolded and anchored, and then the anchor piece unfolding device is taken out.
And then, sequentially installing a sealing plug 4, a gasket 3 and a nut piece 2 on the anchor rod body 1, sealing the outer wall of the anchor rod body 1 with an anchoring hole, using a grouting gun head to install on a grouting opening 5 for grouting, wherein the grouting opening 5 is provided with an internal thread interface which is matched with the grouting gun head for installation, and finishing the anchoring of the anchor rod after the grouting is finished and the grouting is solidified.
Compared with the existing hollow grouting anchor rod, the grouting anchor rod device for tunnel construction is provided with the plurality of telescopic anchor rod pieces 7 on the anchor rod body 1, the anchor strength of the anchor rod body 1 can be greatly improved through the arrangement of the anchor rod pieces 7, the arrangement length of the anchor rod body 1 can be shortened, and the efficiency of tunnel construction can be improved due to the arrangement and installation of the anchor rod; according to the grouting anchor rod device for tunnel construction, the anchor piece unfolding device is provided with the anchor piece unfolding teeth 10 creatively, the anchor piece unfolding teeth 10 are in meshed transmission with the anchor bevel gears 8 on the anchor pieces 7, when the screw rod 11 is rotated, the anchor piece unfolding teeth 10 are driven to rotate, the anchor piece unfolding teeth 10 are rotated to drive the anchor bevel gears 8 to rotate, so that the anchor pieces 7 are anchored in soil layers, and anchoring force of anchoring is processed; the grouting anchor rod device for tunnel construction can be repeatedly used, and after one anchor is mounted, other anchor rods can be mounted by dismounting the anchor rod unfolding device.
Example 2
As shown in fig. 1-5, according to the grouting anchor device for tunnel construction of the present utility model, on the basis of the above embodiment, the other end of the screw rod 11 is provided with a rotating head 13, and the screw rod 11 is driven to rotate on the screw rod cap 12 by rotating the rotating head 13. The rotating head 13 is a hexagonal rod. The hexagonal rod can be matched with the electric drilling machine, and the screw rod 11 is driven to rotate by electric power.
Example 3
As shown in fig. 1-5, the grouting anchor rod device for tunnel construction of the utility model is characterized in that on the basis of the embodiment, three anchor bolt holes 6 are uniformly distributed and circumferentially arranged on an anchor rod body 1 in the radial direction. Generally, three anchor bolt holes 6 are arranged in the radial direction of the anchor bolt body 1, and the anchor bolt holes 6 cannot be symmetrically arranged, because the symmetrical positions of the anchor bolt holes 6 are provided with mounting holes. The grout outlet holes 9 are also mounting holes for the anchor elements 7.
Example 4
As shown in fig. 1-5, according to the grouting anchor device for tunnel construction of the present utility model, on the basis of the above embodiment, the anchor bevel gear 8 of the anchor member 7 is provided with an inner six holes 14 at the end. The anchor 7 is mounted on the anchor screw hole 6 through the grout outlet 9, and then a hexagonal screwdriver is needed to be inserted into the inner six holes 14.
Example 5
As shown in fig. 1 to 5, according to the grouting anchor device for tunnel construction of the present utility model, on the basis of the above embodiment, a self-advancing spiral plate (not shown in the drawings) is provided on the outer circumferential surface of the anchor body 1. The outer ring surface of the anchor rod body 1 is provided with a self-feeding spiral plate, so that an anchoring hole can be directly drilled into a tunnel rock soil layer by rotating the anchor rod body 1.
1. Compared with the existing hollow grouting anchor rod, the grouting anchor rod device for tunnel construction is provided with the plurality of telescopic anchor rod pieces 7 on the anchor rod body 1, the anchor strength of the anchor rod body 1 can be greatly improved through the arrangement of the anchor rod pieces 7, the arrangement length of the anchor rod body 1 can be shortened, and the efficiency of tunnel construction can be improved due to the arrangement and installation of the anchor rod;
2. according to the grouting anchor rod device for tunnel construction, the anchor piece unfolding device is provided with the anchor piece unfolding teeth 10 creatively, the anchor piece unfolding teeth 10 are in meshed transmission with the anchor bevel gears 8 on the anchor pieces 7, when the screw rod 11 is rotated, the anchor piece unfolding teeth 10 are driven to rotate, the anchor piece unfolding teeth 10 are rotated to drive the anchor bevel gears 8 to rotate, so that the anchor pieces 7 are anchored in soil layers, and anchoring force of anchoring is processed;
3. the grouting anchor rod device for tunnel construction can be repeatedly used, and after one anchor is mounted, other anchor rods can be mounted by dismounting the anchor rod unfolding device.
The foregoing description of the embodiments has been provided for the purpose of illustrating the general principles of the utility model, and is not meant to limit the scope of the utility model, but to limit the utility model to the particular embodiments, and any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the utility model are intended to be included within the scope of the utility model.
Claims (10)
1. The utility model provides a slip casting roof bolt device for tunnel construction, includes stock body (1), nut piece (2), gasket (3) and sealing plug (4), its characterized in that: the anchor rod body (1) is of a hollow structure, a tip part is arranged at one end of the anchor rod body (1), a grouting opening (5) is formed in the other end of the anchor rod body (1), a plurality of anchor bolt screw holes (6) are formed in the pipe wall of the anchor rod body (1) along the axial direction, anchor bolt pieces (7) are screwed in each anchor bolt screw hole (6), a tip part is formed in one end of each anchor bolt piece (7), an anchor bolt bevel gear (8) is arranged at the other end of each anchor bolt piece (7), and the anchor bolt pieces (7) penetrate through the anchor rod body (1) to be anchored in a tunnel stratum by rotating the anchor bolt bevel gear (8); a grout outlet hole (9) is arranged on the anchor rod body (1) corresponding to the anchor bolt hole (6); the sealing plug (4), the gasket (3) and the nut piece (2) are sequentially sleeved at the setting end of the grouting port (5) of the anchor rod body (1).
2. The grouting anchor device for tunnel construction according to claim 1, wherein: the novel anchor rod unfolding device comprises anchor rod unfolding bevel gears (10), a screw rod (11) and a screw rod cap (12), wherein the anchor rod unfolding bevel gears (10) meshed with the anchor rod bevel gears (8) are arranged at one end of the screw rod (11), and the screw rod cap (12) is sleeved on the screw rod (11).
3. A grouting anchor device for tunnel construction according to claim 2, wherein: the other end of the screw rod (11) is provided with a rotating head (13), and the screw rod (11) is driven to rotate on the screw rod cap (12) through rotating the rotating head (13).
4. A grouting anchor device for tunnel construction according to claim 3, wherein: the rotating head (13) is a hexagonal rod.
5. A grouting anchor device for tunnel construction according to claim 2, wherein: the screw cap (12) is in threaded connection with the setting end of the grouting port (5) of the anchor rod body (1).
6. The grouting anchor device for tunnel construction according to claim 1, wherein: the anchor rod body (1) is radially and uniformly distributed and surrounds three anchor bolt holes (6).
7. The grouting anchor device for tunnel construction according to claim 1, wherein: the grout outlet hole (9) is also a mounting hole of the anchor (7).
8. The grouting anchor device for tunnel construction according to claim 1, wherein: an anchor bevel gear (8) of the anchor piece (7) is provided with an inner six holes (14) at the end.
9. The grouting anchor device for tunnel construction according to claim 1, wherein: the grouting port (5) is provided with an internal thread interface.
10. The grouting anchor device for tunnel construction according to claim 1, wherein: the outer ring surface of the anchor rod body (1) is provided with a self-feeding spiral plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322004238.9U CN220336931U (en) | 2023-07-28 | 2023-07-28 | Grouting anchor rod device for tunnel construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322004238.9U CN220336931U (en) | 2023-07-28 | 2023-07-28 | Grouting anchor rod device for tunnel construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220336931U true CN220336931U (en) | 2024-01-12 |
Family
ID=89455495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322004238.9U Active CN220336931U (en) | 2023-07-28 | 2023-07-28 | Grouting anchor rod device for tunnel construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220336931U (en) |
-
2023
- 2023-07-28 CN CN202322004238.9U patent/CN220336931U/en active Active
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