CN211397622U - Grouting anchor rod - Google Patents
Grouting anchor rod Download PDFInfo
- Publication number
- CN211397622U CN211397622U CN201922385757.8U CN201922385757U CN211397622U CN 211397622 U CN211397622 U CN 211397622U CN 201922385757 U CN201922385757 U CN 201922385757U CN 211397622 U CN211397622 U CN 211397622U
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- anchor rod
- grouting
- barb structure
- grouting holes
- stop plug
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Abstract
The utility model provides a grouting anchor rod, which comprises a locking nut, a backing plate, a grout stop plug, an anchor rod, a guide piece, a barb structure and a mould bag; the anchor rod is provided with a plurality of first grouting holes and second grouting holes which penetrate through the side wall, and the anchor rod is provided with a barb structure of the first grouting holes; the grout stopping plug is sleeved at one end of the anchor rod, and the backing plate is connected with the thread pair of the anchor rod through the locking nut to fix the grout stopping plug; the guide piece is fixed at the other end of the anchor rod; the mold bag is sleeved outside the anchor rod and is fixed with the side wall of the anchor rod through a connecting piece, and the mold bag covers the second grouting holes; the utility model overcomes the defect that the traditional device excessively depends on grouting pressure to extend the barb structure, the slurry can easily break the hinge to form the barb structure, and the anchor rod can be better connected with surrounding rock bodies; the device for wrapping the sand-stone mixture by the high-fiber membrane bag can play a good role in water plugging and has a remarkable effect on treating regional water inrush in underground engineering.
Description
Technical Field
The utility model relates to an inside technical field that struts of rock especially relates to a slip casting stock.
Background
The anchor rod is a tension member which is driven into the rock mass, one end of the anchor rod is connected with the supporting structure, and the other end of the anchor rod penetrates into the rock mass to bear the force together with the rock mass, so that the anchor rod is widely applied to geotechnical engineering and mining engineering. The existing structure excessively depends on grouting pressure to enable the barb structure of the anchor rod body to stretch out, so that the hidden danger that the barb structure cannot be completely stretched exists, and the anchor rod cannot be well connected with surrounding rock masses.
SUMMERY OF THE UTILITY MODEL
The utility model provides a slip casting stock to overcome above-mentioned technical problem.
The utility model discloses a: the locking device comprises a locking nut, a base plate, a grout stop plug, an anchor rod, a guide piece, a barb structure and a die bag; the anchor rod is hollow, a plurality of first grouting holes and second grouting holes penetrating through the side wall are formed in the anchor rod, and the anchor rod is provided with a barb structure for shielding the first grouting holes; the grout stop plug is in interference fit with the anchor rod, the grout stop plug is sleeved at one end of the anchor rod, and the backing plate is connected with the thread pair of the anchor rod through the locking nut to fix the grout stop plug; the guide piece is fixed at the other end of the anchor rod;
the mould bag cover is located the stock outside to through the connecting piece with the stock lateral wall is fixed, the mould bag covers a plurality of the second slip casting hole.
Further, a plurality of the first grouting holes are annularly arranged at a plurality of cross sections of the anchor rod.
Further, the barb structure is a spring hinge;
the fixing part of the spring hinge is welded on the outer wall of the anchor rod; the folding part of the spring hinge is positioned above the first grouting hole, and one end, far away from the fixing part, of the folding part faces the grout stopping plug.
Further, the guide piece is a cone, and the bottom surface of the cone is fixed to the end part of the anchor rod.
Furthermore, sand and stone particles are filled in a gap formed by the die bag and the anchor rod.
Further, still include: a grating optical fiber strain sensor and a groove;
the groove is arranged on the outer side wall of the anchor rod and is used for placing the grating optical fiber strain sensor and an optical fiber lead for connecting the grating optical fiber strain sensor and remote equipment.
Furthermore, the mould bag is made of high polymer fiber materials.
The utility model overcomes the defect that the traditional device excessively depends on grouting pressure to extend the barb structure, the slurry can easily break the hinge to form the barb structure, and the anchor rod can be better connected with surrounding rock bodies; the device for wrapping the sand-stone mixture by the high-fiber membrane bag can play a good role in water plugging and has a remarkable effect on treating regional water inrush in underground engineering.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is a schematic view of the overall structure of a grouting anchor rod of the present invention;
fig. 2 is a schematic cross-sectional view of a grouting anchor rod of the present invention;
fig. 3 is a schematic cross-sectional view of a grouting anchor rod provided with a barb structure according to the present invention;
figure 4 is the utility model relates to a barb structure schematic diagram of slip casting stock.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model discloses a: the device comprises a locking nut 1, a backing plate 2, a grout stop plug 3, an anchor rod 12, a guide piece 9, a barb structure 4 and a mould bag 6; the anchor rod is characterized in that the anchor rod 12 is hollow, a plurality of first grouting holes 5 and second grouting holes 10 penetrating through the side wall are formed in the anchor rod 12, and the anchor rod 12 is provided with a barb structure 4 for shielding the first grouting holes 5; the grout stop plug 3 is in interference fit with the anchor rod 12, the grout stop plug 3 is sleeved at one end of the anchor rod 12, and the backing plate 2 is connected with the thread pair of the anchor rod 12 through the locking nut 1 to fix the grout stop plug 3; the guide piece 9 is fixed at the other end of the anchor rod 12;
the mold bag 6 is sleeved on the outer side of the anchor rod 12 and is fixed with the side wall of the anchor rod 12 through a connecting piece 8, and the mold bag 6 covers a plurality of second grouting holes 10.
Further, a plurality of the first grout holes 5 are annularly arranged at a plurality of cross sections of the anchor rod 12.
Further, the barb structure 4 is a spring hinge;
the fixing part 4-1 of the spring hinge is welded on the outer wall of the anchor rod 12; the folding part 4-2 of the spring hinge is positioned above the first grouting hole 5, and one end, far away from the fixing part 4-1, of the folding part 4-2 faces the grout stop plug 3.
Further, the guide member 9 is a cone, and the bottom surface of the cone is fixed to the end of the anchor rod 12.
Further, still include: and the second grouting holes 10 are provided with mould bags 6 in the level of 10, the mould bags 6 are sleeved outside the anchor rod 12 and are fixed with the side wall of the anchor rod 12 through a connecting piece 8, and the mould bags 6 cover a plurality of the second grouting holes 10.
Further, the gap formed by the mould bag 6 and the anchor rod 12 is filled with sand particles 7.
Further, still include: a grating optical fiber strain sensor 15 and a groove 13;
the groove 13 is arranged on the outer side wall of the anchor rod 12, and the groove 13 is used for placing the grating optical fiber strain sensor 15 and connecting the grating optical fiber strain sensor 15 with an optical fiber lead 14 of a remote device.
Further, the mold bag 6 is made of polymer fiber.
Specifically, as shown in fig. 1, a conical guide 9 is fixedly arranged at one end of the anchor rod 12, and the tip of the guide 9 is used for guiding the anchor rod 12 into a rock body;
a plurality of first grouting holes 5 annularly arranged along the cross section are formed in the side wall of the anchor rod 12, three groups of grouting rings are arranged in the embodiment, and each group of grouting rings is composed of four first grouting holes 5, as shown in fig. 2; the barbed structure 4, i.e. the fixing portion 4-1 of the spring hinge, is fixed at the edge of the first grouting hole 5, as shown in fig. 3; the folding part 4-2 is arranged above the first grouting hole 5, and the folding part 4-2 of the spring hinge is unfolded by pressure exerted by grout extruded from the first grouting hole 5, so that the distance between the folding part 4-2 and the side wall of the anchor rod 12 is increased, and the effect of barbs is realized; the opening formed by the folded part 4-2 and the anchor rod side wall is opposite to the movement direction of the tip end of the guide member 9, and the spring hinge structure is shown in fig. 4;
a plurality of second grouting holes 10 are formed between the two groups of grouting rings far away from the guide piece 9, the second grouting holes 10 are wrapped by a high polymer fiber mold bag 6 sleeved on the anchor rod 12, and a gap between the mold bag 6 and the anchor rod is filled with sand particles; the mould bag 6 is permeable to water and impermeable to slurry, the diffusion of slurry can be prevented, in the high-pressure grouting process, the slurry is grouted through one end, far away from the guide piece 9, of the anchor rod 12, the slurry flows into the polymer fiber mould bag 6 when rushing open the folding portion 4-2 of the spring hinge and is uniformly mixed with sand and stone particles in the mould bag 6, after grouting is completed, the mould bag 6 expands and becomes large, a water outlet area is effectively blocked, after the slurry is solidified, a good water blocking and reinforcing effect can be achieved, finally, the slurry stop plug 3 is sleeved on the grouting opening end of the anchor rod 12, and the backing plate 2 is connected with the thread pair of the anchor rod 12 through the locking nut 1 to achieve the fixation of the slurry stop plug 3.
In addition, be provided with the recess 13 that is used for placing grating fiber strain sensor 15 and optic fibre wire 14 on the lateral wall of stock 12, optic fibre wire 14 is used for connecting grating fiber strain sensor 15 and remote equipment are connected, can detect the internal strain of stock 12, and the change condition of surrounding rock atress around the reaction slip casting is consolidated has overcome the unable inside atress of monitoring and the defect of warping after the stock installation is accomplished in the past.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (7)
1. A grouted anchor rod comprising: the device comprises a locking nut (1), a backing plate (2), a grout stop plug (3), an anchor rod (12), a guide piece (9), a barb structure (4) and a mould bag (6); the anchor rod is characterized in that the anchor rod (12) is hollow, a plurality of first grouting holes (5) and second grouting holes (10) penetrating through the side wall are formed in the anchor rod (12), and the anchor rod (12) is provided with a barb structure (4) for shielding the first grouting holes (5); the grout stop plug (3) is in interference fit with the anchor rod (12), the grout stop plug (3) is sleeved at one end of the anchor rod (12), and the backing plate (2) is connected with a thread pair of the anchor rod (12) through the locking nut (1) to fix the grout stop plug (3); the guide piece (9) is fixed at the other end of the anchor rod (12);
the anchor rod (12) outside is located to mould bag (6) cover to through connecting piece (8) with anchor rod (12) lateral wall is fixed, mould bag (6) cover a plurality of second slip casting hole (10).
2. A grouting bolt according to claim 1, characterized in that several of said first grouting holes (5) are arranged annularly at several cross sections of the bolt (12).
3. A grouting bolt according to claim 2, characterised in that the barb structure (4) is a spring hinge;
the fixing part (4-1) of the spring hinge is welded on the outer wall of the anchor rod (12); the folding part (4-2) of the spring hinge is positioned above the first grouting hole (5), and one end, far away from the fixing part (4-1), of the folding part (4-2) faces the grout stop plug (3).
4. A grouting bolt according to claim 3, characterised in that the guide (9) is a cone, the underside of which is fixed to the end of the bolt (12).
5. A grouting bolt according to claim 4, characterised in that the void formed by the mould bag (6) and the bolt (12) is filled with sand and stone particles (7).
6. A grouting bolt according to claim 5, characterized in that it further comprises: a grating optical fiber strain sensor (15) and a groove (13);
the groove (13) is formed in the outer side wall of the anchor rod (12), and the groove (13) is used for placing the grating optical fiber strain sensor (15) and connecting the grating optical fiber strain sensor (15) and an optical fiber lead (14) of remote equipment.
7. A grouting anchor according to claim 6, characterised in that the mould bag (6) is of high-molecular polymer fibre material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922385757.8U CN211397622U (en) | 2019-12-26 | 2019-12-26 | Grouting anchor rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922385757.8U CN211397622U (en) | 2019-12-26 | 2019-12-26 | Grouting anchor rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211397622U true CN211397622U (en) | 2020-09-01 |
Family
ID=72226213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922385757.8U Active CN211397622U (en) | 2019-12-26 | 2019-12-26 | Grouting anchor rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211397622U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113530587A (en) * | 2021-06-30 | 2021-10-22 | 李爽 | Mechanical linkage anti-pulling anchor rod |
| CN114396285A (en) * | 2022-03-04 | 2022-04-26 | 金鑫 | High-strength steel wire mesh and use method thereof |
| CN114525760A (en) * | 2022-01-22 | 2022-05-24 | 郑州大学 | Portable high polymer gushing water plugging device and method |
-
2019
- 2019-12-26 CN CN201922385757.8U patent/CN211397622U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113530587A (en) * | 2021-06-30 | 2021-10-22 | 李爽 | Mechanical linkage anti-pulling anchor rod |
| CN114525760A (en) * | 2022-01-22 | 2022-05-24 | 郑州大学 | Portable high polymer gushing water plugging device and method |
| CN114525760B (en) * | 2022-01-22 | 2024-05-28 | 郑州大学 | Portable high polymer gushing water plugging device and method |
| CN114396285A (en) * | 2022-03-04 | 2022-04-26 | 金鑫 | High-strength steel wire mesh and use method thereof |
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