CN113339034B - Intelligent anchor rod suitable for tunnel support and stability measurement - Google Patents
Intelligent anchor rod suitable for tunnel support and stability measurement Download PDFInfo
- Publication number
- CN113339034B CN113339034B CN202110769961.9A CN202110769961A CN113339034B CN 113339034 B CN113339034 B CN 113339034B CN 202110769961 A CN202110769961 A CN 202110769961A CN 113339034 B CN113339034 B CN 113339034B
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- anchor rod
- rod
- ring
- sleeve
- seat
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- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
- E21—EARTH 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
- E21D21/0046—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by constructional features of the bolts formed by a plurality of elements arranged longitudinally
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Abstract
The invention discloses an intelligent anchor rod suitable for tunnel support and stability measurement, relates to the technical field of anchor rods, and solves the problems that an existing anchor rod is easy to deviate due to automatic stress in the process of supporting a tunnel, the stability of the support is poor, the connection degree of a grouting part is low and the like. The utility model provides an intelligent stock suitable for tunnel support and stability measurement, includes stock coupling mechanism, two stable adjustment mechanism are installed to the inboard at stock coupling mechanism middle part, stable adjustment mechanism includes positioning sleeve, regulation pole and contact, positioning sleeve's inboard is installed and is adjusted the pole, two the axis of adjusting the pole is mutually perpendicular, the both ends of adjusting the pole all are provided with the contact, the anchor pole is installed to stock coupling mechanism's bottom. According to the invention, the anchor rod is positioned and supported, so that the stability of tunnel support is effectively ensured, the supporting angle can be adjusted, and the stability is improved.
Description
Technical Field
The invention relates to the technical field of anchor rods, in particular to an intelligent anchor rod suitable for tunnel support and stability measurement.
Background
Along with the rapid development of social economy, the coal exploitation scale is larger and larger, the anchor rod is the most basic component part of roadway support in contemporary coal mines, and the anchor rod reinforces surrounding rocks of the roadway together so that the surrounding rocks support themselves; the anchor rod is not only used for mines, but also used in engineering technology, the main body of a slope, a tunnel and a dam body is reinforced, one end of the anchor rod is connected with an engineering structure, the other end of the anchor rod is penetrated into the stratum, the whole anchor rod is divided into a free section and an anchoring section, the free section is used for transmitting the tensile force of the anchor rod head to the area of the anchoring body, and the function of the anchor rod is to apply prestress to the anchor rod.
However, the existing anchor rod is easy to deviate due to automatic stress in the process of supporting the tunnel, so that the stability of the support is poor, and the connection degree of the grouting part is low; therefore, the existing requirements are not met, and an intelligent anchor rod suitable for tunnel support and stability measurement is provided.
Disclosure of Invention
The invention aims to provide an intelligent anchor rod suitable for tunnel support and stability measurement, which solves the problems that the existing anchor rod provided in the background art is easy to deviate due to automatic stress in the process of supporting a tunnel, the stability of the support is poor, the connection degree of a grouting part is low and the like.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides an intelligent stock suitable for tunnel support and stability measurement, includes stock coupling mechanism, two stable adjustment mechanism are installed to the inboard in stock coupling mechanism middle part, stable adjustment mechanism includes locating sleeve, regulation pole and contact head, the regulation pole is installed to locating sleeve's inboard, two the axis of regulation pole is each other perpendicular, the both ends of regulation pole all are provided with the contact head, the anchor pole is installed to stock coupling mechanism's bottom, grout shutoff mechanism is installed in the outside in anchor pole middle part, grout shutoff mechanism includes toper spacing seat, shutoff dish, anti-skidding movable claw, collar, connecting block, connecting wire ring and push ring, the inboard fixed mounting of shutoff dish has toper spacing seat, the push ring is installed to the one end of toper spacing seat, eight anti-skidding movable claws are evenly installed to one side of push ring, the outside sliding connection of anti-skidding movable claw one end has the collar, anti-skidding movable claw is connected through the connecting wire ring with the collar, the connecting block is installed in the outside of connecting wire ring to one side of anti-skidding movable claw, the connecting wire ring passes through eight fixed connection blocks with the collar.
Preferably, the upper end of the anchoring rod is fixedly connected with the anchor rod connecting mechanism through the anchor rod connecting mechanism, and the bottom end of the anchoring rod is provided with a rod end limiting mechanism.
Preferably, the rod end limiting mechanism comprises a connecting ring, a mounting seat, a movable buffer frame, a positioning seat, a connecting inserting rod and a supporting spring, wherein the mounting seat is fixedly arranged on the outer side of one end of the connecting inserting rod, the positioning seat is fixedly arranged on one side of the mounting seat, the movable buffer frame is slidably connected on the inner side of the positioning seat, the connecting ring is fixedly arranged at one end of the movable buffer frame, and the movable buffer frame is connected with the positioning seat through the supporting spring.
Preferably, the anchor rod connecting mechanism comprises a locking sleeve, a connecting sleeve and a limiting threaded ring, wherein the connecting sleeve is installed on the outer side of the limiting threaded ring, and the locking sleeve is fixedly installed on the outer side of the connecting sleeve.
Preferably, the anchor rod connecting mechanism comprises a movable anchor rod, an equipment connecting disc, a locking rod piece and an anti-slip gasket, wherein the equipment connecting disc is arranged at the upper end of the movable anchor rod, the locking rod piece is arranged at the upper end face of the equipment connecting disc, and the anti-slip gasket is arranged at the outer side of the upper end of the locking rod piece.
Preferably, the adjusting rod is connected with the positioning sleeve through threads, both ends of the adjusting rod are welded and fixed with the contact heads, the plugging disc is connected and fixed with the conical limiting seat through screws, the conical limiting seat is welded and fixed with the push ring, an arc-shaped groove is formed in one side of the mounting ring, and one end of the anti-slip movable claw extends to the inner side of the arc-shaped groove.
Preferably, one end of the movable buffer frame penetrates through the mounting seat and the positioning seat respectively and is fixedly welded on one side of the connecting ring, one side of the positioning seat is provided with a positioning groove, and one end of the supporting spring extends to the inner side of the positioning groove.
Preferably, one end of the connecting sleeve is connected with the anchoring rod through threads, the limiting threaded ring is connected with the connecting sleeve through threads, and the locking sleeve is welded and fixed with the connecting sleeve.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the position of the limiting threaded ring relative to the connecting sleeve is adjusted, so that the whole length is convenient to adjust, the movable buffer frame is connected with the positioning seat through the supporting spring, grouting can wrap the positioning seat and the movable buffer frame, the tightness of connection between the bottom end of the anchoring rod and the tunnel is effectively improved, the conical limiting seat pushes the eight anti-slip movable claws to rotate relative to the mounting ring, the anti-slip movable claws can support a mine tunnel, and the stability of the anchor rod when the whole is pulled outwards is effectively improved;
2. according to the invention, grouting operation can be performed on grouting through the plugging disc, grouting effect is improved, the axes of the two adjusting rods are perpendicular to each other, the adjusting rods are in threaded connection with the positioning sleeve, and further, the angles of the axes of the adjusting rods relative to the mine tunnel can be adjusted by adjusting the adjusting rods relative to the positioning sleeve, so that stability in supporting the tunnel is kept conveniently.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a front view of the entirety of the present invention;
FIG. 3 is a schematic view of a partial construction of the anchor rod connecting mechanism of the present invention;
FIG. 4 is a schematic view of a partial structure of the grouting plugging mechanism according to the present invention;
FIG. 5 is a schematic view of a partial cross-sectional structure of the grouting plugging mechanism according to the present invention;
FIG. 6 is a schematic view of a partial cross-sectional view of a rod end stop mechanism according to the present invention.
In the figure: 1. an anchor rod; 2. a rod end limiting mechanism; 201. a connecting ring; 202. a mounting base; 203. a movable buffer frame; 204. a positioning seat; 205. connecting the inserted link; 206. a support spring; 3. grouting and plugging mechanisms; 301. a conical limit seat; 302. a plugging disc; 303. anti-slip movable claws; 304. a mounting ring; 305. a connecting block; 306. connecting a wire ring; 307. a push ring; 4. an anchor rod connecting mechanism; 401. a locking sleeve; 402. a connecting sleeve; 403. a limit threaded ring; 5. a stability adjustment mechanism; 501. positioning the sleeve; 502. an adjusting rod; 503. a contact; 6. an anchor rod connecting mechanism; 601. a movable anchor rod; 602. an equipment connection pad; 603. a locking rod piece; 604. an anti-slip gasket.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
Referring to fig. 1 to 6, an embodiment of the present invention provides: the utility model provides an intelligent stock suitable for tunnel support and stability measurement, including stock coupling mechanism 6, two stable adjustment mechanism 5 are installed to the inboard at stock coupling mechanism 6 middle part, stable adjustment mechanism 5 includes positioning sleeve 501, adjust pole 502 and contact head 503, the inboard of positioning sleeve 501 is installed and is adjusted pole 502, the axis of two regulation poles 502 is mutually perpendicular, be convenient for adjust the stock angle for positioning sleeve 501 through adjusting pole 502, the both ends of adjusting pole 502 all are provided with contact head 503, anchor pole 1 is installed to anchor pole 1 middle part's outside, grout shutoff mechanism 3 includes toper spacing seat 301, the shutoff dish 302, anti-skidding movable claw 303, the collar 304, connecting block 305, connecting wire ring 306 and push ring 307, the inboard fixed mounting of shutoff dish 302 has toper spacing seat 301, push ring 307 is installed to the one end of toper spacing seat 301, eight anti-skidding movable claw 303 can support the ore tunnel, stability when effectively improving whole outside one end and pull 303, movable connection has the anchor wire ring 306 to install the slip ring 304 through the annular connection, the slip ring is located the fixed connection of supporting ring 306, the slip ring is located the fixed connection with the anchor rod is located to the fixed connection of anchor rod side, the slip ring is connected with the slip ring is guaranteed to the slip ring 304, the slip ring is connected with the slip ring is connected to the slip ring is fixed by the slip ring 306, the slip ring is connected to the slip ring is fixed with the slip ring is connected to the slip ring 306.
Further, the upper end of the anchor rod 1 is fixedly connected with the anchor rod connecting mechanism 6 through the anchor rod connecting mechanism 4, the rod end limiting mechanism 2 is installed at the bottom end of the anchor rod 1, and stable connection is conveniently carried out on the anchor rod 1 and the anchor rod connecting mechanism 6 through the anchor rod connecting mechanism 4.
Further, rod end stop gear 2 includes go-between 201, mount pad 202, movable buffer frame 203, positioning seat 204, connect inserted bar 205 and supporting spring 206, the outside fixed mounting of connection inserted bar 205 one end has mount pad 202, one side fixed mounting of mount pad 202 has positioning seat 204, the inboard sliding connection of positioning seat 204 has movable buffer frame 203, the one end fixed mounting of movable buffer frame 203 has go-between 201, movable buffer frame 203 passes through supporting spring 206 with positioning seat 204 to be connected, be convenient for carry out zonulae occludens to stock and grout through rod end stop gear 2.
Further, the anchor rod connecting mechanism 4 comprises a locking sleeve 401, a connecting sleeve 402 and a limiting threaded ring 403, the connecting sleeve 402 is installed on the outer side of the limiting threaded ring 403, the locking sleeve 401 is fixedly installed on the outer side of the connecting sleeve 402, and the distance between the anchor rod 1 and the anchor rod connecting mechanism 6 is convenient to adjust through the anchor rod connecting mechanism 4.
Further, the anchor rod connecting mechanism 6 comprises a movable anchor rod 601, an equipment connecting disc 602, a locking rod 603 and an anti-slip gasket 604, the equipment connecting disc 602 is installed at the upper end of the movable anchor rod 601, the locking rod 603 is installed at the upper end face of the equipment connecting disc 602, the anti-slip gasket 604 is arranged at the outer side of the upper end of the locking rod 603, and the anchor rod and equipment are fixedly connected and supported through the anchor rod connecting mechanism 6.
Further, adjusting rod 502 and positioning sleeve 501 pass through threaded connection, and the both ends and the equal welded fastening of contact 503 of adjusting rod 502, and shutoff dish 302 passes through screw connection with toper spacing seat 301 and fixes, and toper spacing seat 301 and push ring 307 welded fastening, one side of collar 304 is provided with the arc wall, and the one end of anti-skidding movable claw 303 extends to the inboard of arc wall, is convenient for adjust stock angle through adjusting rod 502 for positioning sleeve 501.
Further, one end of the movable buffer frame 203 penetrates through the mounting seat 202 and the positioning seat 204 respectively to be welded and fixed on one side of the connecting ring 201, one side of the positioning seat 204 is provided with a positioning groove, one end of the supporting spring 206 extends to the inner side of the positioning groove, so that grouting can wrap the positioning seat 204 and the movable buffer frame 203, and the tightness degree of the bottom end of the anchoring rod 1 and tunnel connection is effectively improved.
Further, one end of the connecting sleeve 402 is in threaded connection with the anchor rod 1, the limiting threaded ring 403 is in threaded connection with the connecting sleeve 402, the locking sleeve 401 is welded and fixed with the connecting sleeve 402, and the limiting threaded ring 403 is convenient for limiting the anchor rod connecting mechanism 6.
When the anchor rod is used, whether functions of all parts are good or not is checked, the bottom end of the movable anchor rod 601 is connected with the anchor rod 1 through the anchor rod connecting mechanism 4, the bottom end of the connecting sleeve 402 is connected with the anchor rod 1 through threads, the limiting threaded ring 403 is adjusted according to the connecting distance between the movable anchor rod 601 and the anchor rod 1, the limiting threaded ring 403 is connected with the connecting sleeve 402 through threads, the position of the limiting threaded ring 403 relative to the connecting sleeve 402 is adjusted, the whole length is adjusted conveniently, the anchor rod 1 drives the rod end limiting mechanism 2 to be inserted into the inner side of a mine hole, grouting operation is carried out on the inner side of the mine hole, the movable buffer frame 203 is connected with the positioning seat 204 through the supporting spring 206, so that grouting can wrap the positioning seat 204 and the movable buffer frame 203, and the tightness of connection of the bottom end of the anchor rod 1 and a tunnel is effectively improved;
the grouting plugging mechanism 3 is arranged on the outer side of the middle part of the anchoring rod 1, the conical limit seat 301 is rotated on the outer side of the anchoring rod 1, the conical limit seat 301 pushes the eight anti-slip movable claws 303 to rotate relative to the mounting ring 304, the anti-slip movable claws 303 can support a mine hole, stability of an anchor rod during whole outwards pulling is effectively improved, the plugging disc 302 is arranged on the outer side of the conical limit seat 301, grouting operation can be further conducted, grouting effect is improved, two stable adjusting mechanisms 5 are arranged on the inner side of the movable anchor rod 601, axes of the two adjusting rods 502 are perpendicular to each other, the adjusting rods 502 are in threaded connection with the positioning sleeve 501, and then the adjusting rods 502 are adjusted relative to the positioning sleeve 501, so that the angles of the axes of the anchor rods and the mine hole can be adjusted, and stability of the tunnel support can be further maintained.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (7)
1. The utility model provides an intelligent stock suitable for tunnel support and stability measurement, includes first stock coupling mechanism (6), its characterized in that: two stable adjustment mechanisms (5) are arranged on the inner side of the middle part of the first anchor rod connecting mechanism (6), each stable adjustment mechanism (5) comprises a positioning sleeve (501), an adjusting rod (502) and a contact head (503), each adjusting rod (502) is arranged on the inner side of each positioning sleeve (501), the axes of the two adjusting rods (502) are perpendicular to each other, the contact heads (503) are arranged at two ends of each adjusting rod (502), an anchor rod (1) is arranged at the bottom end of the first anchor rod connecting mechanism (6), a grouting plugging mechanism (3) is arranged on the outer side of the middle part of the anchor rod (1), each grouting plugging mechanism (3) comprises a conical limiting seat (301), a plugging disc (302), a mounting ring (304), a connecting block (305), a connecting wire ring (306) and a pushing ring (307), each plugging disc (302) is fixedly arranged on the inner side of each plugging disc (302), eight anti-slip movable claws (303) are uniformly arranged on one side of each sliding ring (307), each sliding ring (304) is connected with one end of each sliding ring (306) through one sliding ring (306), a connecting block (305) is arranged on one side of the anti-skid movable claw (303) and positioned on the outer side of the connecting wire ring (306), and the connecting wire ring (306) and the mounting ring (304) are fixedly connected through eight connecting blocks (305); the anti-slip movable claw comprises a plug disc (302), a conical limit seat (301), a push ring (307) and an adjusting rod (502) and a positioning sleeve (501) which are connected through threads, wherein both ends of the adjusting rod (502) are welded and fixed with a contact head (503), the plug disc (302) is connected and fixed with the conical limit seat (301) through screws, the conical limit seat (301) is welded and fixed with the push ring (307), an arc groove is formed in one side of the mounting ring (304), and one end of the anti-slip movable claw (303) extends to the inner side of the arc groove.
2. An intelligent anchor rod suitable for tunnel support and stability measurement according to claim 1, characterized in that: the upper end of the anchoring rod (1) is fixedly connected with the first anchor rod connecting mechanism (6) through the second anchor rod connecting mechanism (4), and a rod end limiting mechanism (2) is arranged at the bottom end of the anchoring rod (1).
3. An intelligent anchor rod suitable for tunnel support and stability measurement according to claim 2, characterized in that: rod end stop gear (2) are including go-between (201), mount pad (202), activity buffer frame (203), positioning seat (204), connection inserted bar (205) and supporting spring (206), the outside fixed mounting of connection inserted bar (205) one end has mount pad (202), one side fixed mounting of mount pad (202) has positioning seat (204), the inboard sliding connection of positioning seat (204) has activity buffer frame (203), the one end fixed mounting of activity buffer frame (203) has go-between (201), activity buffer frame (203) are connected through supporting spring (206) with positioning seat (204).
4. An intelligent anchor rod suitable for tunnel support and stability measurement according to claim 2, characterized in that: the second anchor rod connecting mechanism (4) comprises a locking sleeve (401), a connecting sleeve (402) and a limiting threaded ring (403), wherein the connecting sleeve (402) is installed on the outer side of the limiting threaded ring (403), and the locking sleeve (401) is fixedly installed on the outer side of the connecting sleeve (402).
5. An intelligent anchor rod suitable for tunnel support and stability measurement according to claim 1, characterized in that: the first anchor rod connecting mechanism (6) comprises a movable anchor rod (601), an equipment connecting disc (602), a locking rod piece (603) and an anti-slip gasket (604), wherein the equipment connecting disc (602) is installed at the upper end of the movable anchor rod (601), the locking rod piece (603) is installed on the upper end face of the equipment connecting disc (602), and the anti-slip gasket (604) is arranged on the outer side of the upper end of the locking rod piece (603).
6. An intelligent anchor rod suitable for tunnel support and stability measurement according to claim 3, characterized in that: one end of the movable buffer frame (203) penetrates through the mounting seat (202) and the positioning seat (204) respectively and is welded and fixed on one side of the connecting ring (201), one side of the positioning seat (204) is provided with a positioning groove, and one end of the supporting spring (206) extends to the inner side of the positioning groove.
7. The intelligent anchor rod suitable for tunnel support and stability measurement according to claim 4, wherein: one end of the connecting sleeve (402) is connected with the anchoring rod (1) through threads, the limiting threaded ring (403) is connected with the connecting sleeve (402) through threads, and the locking sleeve (401) is welded and fixed with the connecting sleeve (402).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110769961.9A CN113339034B (en) | 2021-07-07 | 2021-07-07 | Intelligent anchor rod suitable for tunnel support and stability measurement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110769961.9A CN113339034B (en) | 2021-07-07 | 2021-07-07 | Intelligent anchor rod suitable for tunnel support and stability measurement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113339034A CN113339034A (en) | 2021-09-03 |
| CN113339034B true CN113339034B (en) | 2023-06-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110769961.9A Active CN113339034B (en) | 2021-07-07 | 2021-07-07 | Intelligent anchor rod suitable for tunnel support and stability measurement |
Country Status (1)
| Country | Link |
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| CN (1) | CN113339034B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7381013B1 (en) * | 2002-08-02 | 2008-06-03 | Dywidag-Systems Internationalpty Limited | Rock bolt post grouting apparatus |
| DE102015009399A1 (en) * | 2015-07-20 | 2017-01-26 | Werner Paul Berwald | Slat sliding anchor, as injection or cartridge anchor with a mechanical / electronic measuring device for controlling mountain movements in mining and tunneling |
| CN209368839U (en) * | 2018-10-26 | 2019-09-10 | 东北电力大学 | A kind of ground anchored structure that stability is good |
| CN110410123A (en) * | 2019-08-15 | 2019-11-05 | 河南理工大学 | A kind of New Coal Mine High Strength Roof Bolt Support equipment |
| CN211948486U (en) * | 2020-01-07 | 2020-11-17 | 尹桂昌 | Slope anchor for building municipal works |
| CN112177021A (en) * | 2020-11-17 | 2021-01-05 | 商丘工学院 | Anchor pile for slope support and using method thereof |
| CN112554907A (en) * | 2020-12-02 | 2021-03-26 | 佛山市恒础环保建设工程有限公司 | Pre-buried connecting sleeve in tunnel |
| CN112664252A (en) * | 2020-12-30 | 2021-04-16 | 孟竹 | Special screw anchor rod for roadway support |
-
2021
- 2021-07-07 CN CN202110769961.9A patent/CN113339034B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7381013B1 (en) * | 2002-08-02 | 2008-06-03 | Dywidag-Systems Internationalpty Limited | Rock bolt post grouting apparatus |
| DE102015009399A1 (en) * | 2015-07-20 | 2017-01-26 | Werner Paul Berwald | Slat sliding anchor, as injection or cartridge anchor with a mechanical / electronic measuring device for controlling mountain movements in mining and tunneling |
| CN209368839U (en) * | 2018-10-26 | 2019-09-10 | 东北电力大学 | A kind of ground anchored structure that stability is good |
| CN110410123A (en) * | 2019-08-15 | 2019-11-05 | 河南理工大学 | A kind of New Coal Mine High Strength Roof Bolt Support equipment |
| CN211948486U (en) * | 2020-01-07 | 2020-11-17 | 尹桂昌 | Slope anchor for building municipal works |
| CN112177021A (en) * | 2020-11-17 | 2021-01-05 | 商丘工学院 | Anchor pile for slope support and using method thereof |
| CN112554907A (en) * | 2020-12-02 | 2021-03-26 | 佛山市恒础环保建设工程有限公司 | Pre-buried connecting sleeve in tunnel |
| CN112664252A (en) * | 2020-12-30 | 2021-04-16 | 孟竹 | Special screw anchor rod for roadway support |
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| Publication number | Publication date |
|---|---|
| CN113339034A (en) | 2021-09-03 |
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