CN212054747U - Anti-deformation detachable grouting anchor rod - Google Patents
Anti-deformation detachable grouting anchor rod Download PDFInfo
- Publication number
- CN212054747U CN212054747U CN202020392219.1U CN202020392219U CN212054747U CN 212054747 U CN212054747 U CN 212054747U CN 202020392219 U CN202020392219 U CN 202020392219U CN 212054747 U CN212054747 U CN 212054747U
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- CN
- China
- Prior art keywords
- rod
- grouting
- slip casting
- support sleeve
- rod body
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- Expired - Fee Related
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Abstract
The utility model provides a slip casting stock can be dismantled in shape of preapring for an unfavorable turn of events, the stock is including the triplex that can supply the equipment to dismantle: in turn, a front end portion, comprising a drill bit; the middle part comprises a support sleeve, a grouting section rod body, a grout stop plug and a circular baffle; the third is the tail portion, including the anchor section body of rod, there are a plurality of play thick liquid holes on the cavity of the slip casting section body of rod and the body of rod, the front end establish the screw thread can with the rotatory looks or rotatory dismantlement of drill bit, the rear end have with only thick liquid stopper, circular baffle matched with mounting hole, support the intraductal triangle-shaped support and the inner wall welding that have of cover, the anchor section body of rod inserts circular baffle and support sheathed tube through its front end screw spiral and reserves the hole. The utility model discloses a slip casting stock, simple structure, convenient to use can effectually prevent droing of slip casting stock, has both had higher yield strength, can be used for consolidating in earlier stage, has the slip casting function again, can also take out the anchor section body of rod when the country rock deformation is stable, plays the effect of dismantling and retrieving.
Description
Technical Field
The utility model belongs to geotechnical engineering supporting construction field, concretely relates to slip casting stock.
Background
In the geotechnical engineering construction process in the fields of tunnels, water conservancy, mine roadways and the like, the anchor rod becomes the most widely applied supporting equipment. Due to the influence of geological structure, the situation that surrounding rocks at the top and the upper are broken often occurs, and the self-supporting capability is poor. Therefore, a grouting anchor rod needs to be constructed for grouting reinforcement. The existing grouting anchor rod is generally a hollow round steel anchor rod, the thickness of the wall of the rod body is thin, the yield strength is low, the early-stage high-strength stretching supporting effect cannot be met, and the grouting anchor rod is specially used for grouting reinforcement in the later stage construction only under the condition that the normal deformed steel bar anchor rod is completely supported, so that the normal deformed steel bar anchor rod used for supporting cannot be replaced, the materials are wasted, and the manpower resource cost is increased.
However, in the grouting process, because the angle of the drilled hole and the length of the space in the drilled hole are long, the grouting liquid is unevenly distributed in the grouting process, so that the grouting quality is poor, the anchor rod is easy to fall off, and the anchor rod is not firmly fixed. The anchoring effect of the anchor rod can be influenced due to long supporting time or stress change of surrounding rocks and the like, so that the anchor rod deforms and even slides down from a drilled hole, and potential safety hazards exist for equipment in a roadway and even workers.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a slip casting stock can be dismantled to preapring for an unfavorable turn of events shape, simple structure, convenient to use can effectually prevent droing of slip casting stock, has both had higher yield strength, can be used for consolidating in earlier stage, has the slip casting function again, can also take out the anchor section body of rod when the country rock deformation is stable, plays the effect of dismantling and retrieving.
The utility model provides a slip casting stock can be dismantled in shape of preapring for an unfavorable turn of events, includes the triplex that can supply the equipment to dismantle: in turn, a front end portion, comprising a drill bit 10; the middle part comprises a support sleeve 21, a grouting section rod body 22, a grout stop plug 23 and a circular baffle 24; and the tail part comprises an anchoring section rod body 30.
Furthermore, the front end of the grouting section rod body 22 is provided with threads which can be rotationally connected with the drill bit 10, the grouting section rod body 22 is hollow, a plurality of slurry outlet holes 27 are formed in the rod body, so that the dispersion holes 25 of the support sleeve 21 form annular grouting holes, and the rear end of the grouting section rod body 22 is provided with a mounting hole matched with the slurry stop plug 23 and the circular baffle 24.
Furthermore, the support sleeve 21 is provided with a triangular bracket 26 welded with the inner wall thereof, so that the support sleeve 21 can be effectively prevented from deforming due to overlarge strain force, and the grouting quality is improved; a plurality of dispersed holes 25 in the support sleeve 21 set up at intervals on the support sleeve 21, can go out grout hole 27 hole interference fit on the slip casting section body of rod 22 when the slip casting, and effective degasification makes slip casting liquid evenly distributed, and the slip casting liquid also can closely combine stock and support sleeve 21, makes it should not drop.
Further, the anchoring section rod body 30 is screwed into the circular baffle plate 24 and the reserved hole 28 of the support sleeve 21 through the front end screw thereof.
Preferably, the material of the support sleeve 21 is steel.
Preferably, the number of the dispersion holes 25 on the support sleeve can be 6-12.
The beneficial effects of the utility model reside in that:
the utility model discloses a deformation-preventing detachable grouting anchor rod, simple structure, convenient to use, can effectively provide good supporting capability in the initial stage and the middle stage after adding the supporting sleeve, and the dispersion holes on it and the grout outlet hole on the body of the grouting section rod are in interference fit, so that the grouting quality is ensured; the rod body at the added anchoring section can improve the capacity at the later stage of support, can play a role of support when the deformation change of the surrounding rock is unstable, and can effectively prevent the slip casting anchor rod from falling off by being connected with the support sleeve; the surrounding rock deformation gradually tends to be stable, and the anchoring section rod body can be taken out from the baffle and the support sleeve in a spiral mode at the moment, so that the disassembling and recycling effects are achieved.
Drawings
Fig. 1 is a schematic structural diagram of the grouting anchor rod of the present invention.
Fig. 2 is a partial longitudinal cross-sectional view of the grout bolt of fig. 1.
In the figure: 10-a drill bit; 21-a support sleeve; 22-grouting section rod body; 23-a grout stop plug; 24-circular baffles; 25-discrete holes; 26-triangular brackets; 27-slurry outlet holes; 28-reserving holes; 30-anchoring section rod body
Detailed Description
The technical solution and effects of the present invention will be further explained by the following embodiments. The following embodiments are merely illustrative of the present invention, and the present invention is not limited to the following embodiments or examples. Use the utility model discloses a think about right the utility model discloses the simple change that goes on is all in the utility model discloses the within range that claims.
The following further description of the present invention:
as shown in fig. 1, the anti-deformation detachable grouting anchor rod comprises three parts which can be assembled and disassembled: in turn, a front end portion, comprising a drill bit 10; the middle part comprises a support sleeve 21, a grouting section rod body 22, a grout stop plug 23 and a circular baffle 24; the tail portion includes an anchor segment rod 30.
The diameter of the support sleeve 21 is 80mm, and the length of the support sleeve is 2800 mm; the diameter of the hollow grouting section rod body 22 is 40mm, the length is 2800mm, the diameter of the anchoring section rod body 30 is 80mm, and the length is 2000 mm.
Further, slip casting section body of rod 22 cavity just has a plurality of play thick liquid hole 27, and it is rotatory continuous or rotatory the dismantlement that the screw thread can drill bit 10 to establish at its front end, slip casting section body of rod 22 rear end have with only starch stopper 23, circular baffle 24 matched with mounting hole.
As shown in fig. 2, the support sleeve 21 has a triangular bracket 26 welded to its inner wall, which can effectively prevent the sleeve from deforming due to excessive strain force, thereby preventing grouting quality; the support sleeve 21 is internally provided with 6-12 dispersion holes 25 which are arranged at intervals on the sleeve, and the support sleeve can be in interference fit with the grout outlet holes 27 on the grouting section rod body 22 during grouting, so that gas is effectively exhausted to enable grouting liquid to be uniformly distributed, and the anchor rod can be tightly combined with the support sleeve 21 by the grouting liquid, so that the anchor rod is not easy to fall off.
In an embodiment, the support sleeve 21 is a steel sleeve, and the anchor is a steel anchor, so that the support strength can be ensured, and the anchoring effect can be further ensured. It will be appreciated by those skilled in the art that other related components are also preferably steel components.
In the embodiment, the circular baffle 24 is a steel baffle, and is fixed with the trepanning of the support sleeve 21, the setting of the circular baffle 24 can also prevent the reinforcing agent from overflowing, thereby preventing the influence on the anchoring effect on the one hand, effectively ensuring the fixed strength and stability of the anchor, and preventing the separation during construction from influencing the construction progress and the construction effect.
In the embodiment, the front end of the anchoring section rod body 30 is provided with a screw, and when in use, the screw is spirally inserted into the circular baffle plate 24 and the reserved hole 28 at the rear end of the support sleeve 21, so that the function of supporting can be achieved, and the whole anchor rod is not easy to fall off; when the deformation change of the surrounding rock is unstable, the support function can be achieved, and the slip casting anchor rod can be effectively prevented from falling off due to the connection with the support sleeve 21; when the deformation of the surrounding rock gradually tends to be stable, the anchoring section rod body 30 can be taken out from the circular baffle 24 and the support sleeve 21 in a spiral mode, and the effects of disassembly and recovery are achieved;
when the support is supported and reinforced in the early stage, the diameter of the circular baffle plate 24 is selected to be larger than or equal to that of the circular baffle plate 24 when the drill bit 10 and the grouting section rod body 22 are rotationally connected for drilling and cleaning holes according to engineering requirements, the connected middle section grouting is injected into the drill holes, grouting liquid is injected into the hollow channel of the grouting section rod body 22, the injected grouting liquid is in interference fit with the dispersion holes 25 on the support sleeve 21 through the grout outlet holes 27 on the grouting section rod body 22, the grouting quality is uniform, the support sleeve 21, the grouting section rod body 22 and surrounding rock are reinforced in a certain time, the grout stop plug 23 is used for controlling the outflow of the grout timely, and the support reinforcement effect of the grouting anchor rod in the early stage is further realized; then the circular baffle plate 24 is connected with the support sleeve 21 through the corresponding hole; the anchor section body of rod 30 inserts through its front end screw spiral circular baffle 24 with support sleeve 21's reservation hole 28 to and then realize further reinforcement, make the whole difficult droing of slip casting stock, when the country rock deformation tends to steadily gradually, can take out the anchor section body of rod from baffle and support sleeve upward the spiral, play the effect of dismantling the recovery.
The utility model discloses a slip casting stock, simple structure, convenient to use can effectually prevent droing of slip casting stock, has both had higher yield strength, can be used for consolidating in earlier stage, has the slip casting function again, can be used for the slip casting to consolidate when the later stage construction, can also take out the anchor section body of rod when the wall rock deformation is stable, plays the effect of dismantling the recovery. The double reinforcing effect is beneficial to improving the anchoring effect, simplifying the construction steps and improving the construction efficiency.
Claims (4)
1. The utility model provides a slip casting stock can be dismantled in shape of preapring for an unfavorable turn of events, its characterized in that, the stock includes the triplex that can supply the equipment to dismantle: in turn, a front end portion, comprising a drill bit (10); the middle part comprises a support sleeve (21), a grouting section rod body (22), a grout stop plug (23) and a circular baffle (24); and the tail part comprises an anchoring section rod body (30).
2. The deformation-preventing detachable grouting anchor rod as claimed in claim 1, wherein the grouting section rod body (22) is hollow and is provided with a plurality of grout outlet holes (27), the front end of the grouting section rod body (22) is provided with threads which can be rotationally connected with the drill bit (10) or rotationally detached, and the rear end of the grouting section rod body (22) is provided with a mounting hole matched with the grout stopper (23) and the circular baffle (24).
3. The deformation-preventing detachable grouting anchor rod according to claim 1, wherein a triangular bracket (26) is welded on the inner wall of the support sleeve (21), a plurality of dispersion holes (25) are formed in the support sleeve (21), and 2-3 preformed holes (28) are formed in the rear end of the support sleeve (21).
4. The deformation-preventing detachable grouting anchor rod as claimed in claim 1, wherein a screw is provided at the front end of the anchoring section rod body (30), and the circular baffle (24) and the support sleeve (21) are provided with a reserved hole (28) which can be inserted into the screw at the front end of the anchoring section rod body (30) in a screwing manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020392219.1U CN212054747U (en) | 2020-03-23 | 2020-03-23 | Anti-deformation detachable grouting anchor rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020392219.1U CN212054747U (en) | 2020-03-23 | 2020-03-23 | Anti-deformation detachable grouting anchor rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212054747U true CN212054747U (en) | 2020-12-01 |
Family
ID=73529322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020392219.1U Expired - Fee Related CN212054747U (en) | 2020-03-23 | 2020-03-23 | Anti-deformation detachable grouting anchor rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212054747U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113738418A (en) * | 2021-09-28 | 2021-12-03 | 贵州中钻机械设备有限公司 | Drilling anchoring pre-support system based on shield operation and construction method |
-
2020
- 2020-03-23 CN CN202020392219.1U patent/CN212054747U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113738418A (en) * | 2021-09-28 | 2021-12-03 | 贵州中钻机械设备有限公司 | Drilling anchoring pre-support system based on shield operation and construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201201 |