CN204511481U - A kind of large deformation pressure-relieving achor bar - Google Patents
A kind of large deformation pressure-relieving achor bar Download PDFInfo
- Publication number
- CN204511481U CN204511481U CN201520177865.5U CN201520177865U CN204511481U CN 204511481 U CN204511481 U CN 204511481U CN 201520177865 U CN201520177865 U CN 201520177865U CN 204511481 U CN204511481 U CN 204511481U
- Authority
- CN
- China
- Prior art keywords
- anchor pole
- anchor
- strength
- deformation pressure
- large deformation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- QLMNCUHSDAGQGT-UHFFFAOYSA-N sintofen Chemical compound N1=C(C(O)=O)C(=O)C=2C(OCCOC)=CC=CC=2N1C1=CC=C(Cl)C=C1 QLMNCUHSDAGQGT-UHFFFAOYSA-N 0.000 title claims abstract description 16
- 238000012856 packing Methods 0.000 claims abstract description 8
- 239000011435 rock Substances 0.000 abstract description 13
- 238000004873 anchoring Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000035899 viability Effects 0.000 description 1
Landscapes
- Piles And Underground Anchors (AREA)
Abstract
The utility model provides a kind of large deformation pressure-relieving achor bar, this kind of large deformation pressure-relieving achor bar has a cylindrical anchor pole, the upper end of anchor pole is set with nut and circular packing ring, central part in anchor pole longitudinally has threaded circular port, circular port lower end is fixedly connected with the pertusate anchor pole cap of center band, the top of cylindrical hole is fitted with threaded high-strength mutative damp block, threaded high-strength mutative damp block lower end is fixedly connected with a long straight Elastic Cylindrical bar, surrounding's cover of elastic rod has spring, spring upper and lower side withstands on high-strength mutative damp block and anchor pole cap respectively, the lower end of elastic rod is fixedly connected anchor body, anchor body stretches into and is fixed on bottom petrosal foramen, anchor body upper end is petrosal foramen.This large deformation pressure-relieving achor bar can allow country rock to produce larger deformation, cushions larger rock deformation pressure, effectively avoids anchor pole to be pulled off, improve the quality in tunnel.
Description
Technical field
The utility model relates to anchor pole under a kind of mine, especially a kind of a kind of large deformation pressure-relieving achor bar cushioning pressure changeable.
Background technology
In conventional anchor pole, buried place geostatic stress is large, and after the tunnel initating of mining influence, in anchor pole viability, country rock can produce very large distortion, and some distortion can be greater than 500mm.The deformation of the surrounding rock in tunnel amount that conventional rigid anchor pole allows is very little, is usually less than 100mm, and when roadway surrounding rock produces large deformation, anchor pole is easily pulled off, and therefore provides a kind of large deformation pressure-relieving achor bar of buffering rock deformation pressure just necessary.
Summary of the invention
The problem that deformation of the surrounding rock in tunnel amount is little, be easily pulled off is allowed in order to overcome current rigidity anchor pole, the utility model provides a kind of large deformation pressure-relieving achor bar, this large deformation pressure-relieving achor bar can allow country rock to produce larger deformation, effectively avoids anchor pole to be pulled off, improves the quality in tunnel.
The utility model solves the technical scheme that its technical problem adopts: a kind of large deformation pressure-relieving achor bar, comprising: anchor pole, nut, packing ring, high-strength mutative damp block, spring, anchor pole cap, elastic rod, anchor body, this kind of large deformation pressure-relieving achor bar has a cylindrical anchor pole, the upper end of anchor pole is set with nut and circular packing ring, central part in anchor pole longitudinally has threaded circular port, circular port lower end is fixedly connected with the pertusate anchor pole cap of center band, the top of cylindrical hole is fitted with threaded high-strength mutative damp block, threaded high-strength mutative damp block lower end is fixedly connected with a long straight Elastic Cylindrical bar, surrounding's cover of elastic rod has spring, spring upper and lower side withstands on high-strength mutative damp block and anchor pole cap respectively, the lower end of elastic rod is fixedly connected anchor body, anchor body stretches into and is fixed on bottom petrosal foramen, anchor body upper end is petrosal foramen, the lower end of anchor body and anchor pole is made to maintain distance, when rock mass deforms, anchor body just can impel elastic rod displacement, thus drive high-strength mutative damp block by destroying the damped motion of peripheral screw thread generation great dynamics, thus cushioned distortion dynamics and protect elastic rod and can not be pulled off, still there is the anchoring effect of overall anchor pole and anchor body.
The beneficial effects of the utility model are: this kind of large deformation pressure-relieving achor bar can allow country rock to produce larger deformation, cushions larger rock deformation pressure, effectively avoids anchor pole to be pulled off, improve the quality in tunnel.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is structural principle schematic diagram of the present utility model.
In Fig. 1,1, anchor pole, 2. nut, 3. packing ring, 4. high-strength mutative damp block, 5. spring, 6. anchor pole cap, 7. elastic rod, 8. anchor body, 9 petrosal foramens, 10, rock mass.
Detailed description of the invention
In Fig. 1, a kind of large deformation pressure-relieving achor bar, comprising: anchor pole 1, nut 2, packing ring 3, high-strength mutative damp block 4, spring 5, anchor pole cap 6, elastic rod 7, anchor body 8, this kind of large deformation pressure-relieving achor bar has a cylindrical anchor pole 1, the upper end of anchor pole 1 is set with nut 2 and circular packing ring 3, central part in anchor pole 1 longitudinally has threaded circular port, circular port lower end is fixedly connected with the pertusate anchor pole cap 6 of center band, the top of cylindrical hole is fitted with threaded high-strength mutative damp block 4, threaded high-strength mutative damp block 4 lower end is fixedly connected with a long straight Elastic Cylindrical bar 7, surrounding's cover of elastic rod 7 has spring 5, spring 5 upper and lower side withstands on high-strength mutative damp block 4 and anchor pole cap 6 respectively, the lower end of elastic rod 7 is fixedly connected anchor body 8, anchor body 8 stretches into and is fixed on bottom petrosal foramen 9, anchor body 8 upper end is petrosal foramen 9, anchor body 8 is made to maintain distance with the lower end of anchor pole 1, when rock mass 10 deforms, anchor body 8 just can impel elastic rod 7 displacement, thus drive high-strength mutative damp block 4 by destroying the damped motion of peripheral screw thread generation great dynamics, thus cushioned distortion dynamics and protect elastic rod 7 and can not be pulled off, still there is the anchoring effect of overall anchor pole 1 and anchor body 8.
Claims (1)
1. a large deformation pressure-relieving achor bar, comprising: anchor pole (1), nut (2), packing ring (3), high-strength mutative damp block (4), spring (5), anchor pole cap (6), elastic rod (7), anchor body (8), it is characterized in that: this kind of large deformation pressure-relieving achor bar has a cylindrical anchor pole (1), the upper end of anchor pole (1) is set with nut (2) and circular packing ring (3), central part in anchor pole (1) longitudinally has threaded circular port, circular port lower end is fixedly connected with the pertusate anchor pole cap (6) of center band, the top of cylindrical hole is fitted with threaded high-strength mutative damp block (4), threaded high-strength mutative damp block (4) lower end is fixedly connected with a long straight Elastic Cylindrical bar (7), surrounding's cover of elastic rod (7) has spring (5), spring (5) upper and lower side withstands on high-strength mutative damp block (4) and anchor pole cap (6) respectively, the lower end of elastic rod (7) is fixedly connected anchor body (8), anchor body (8) stretches into and is fixed on petrosal foramen (9) bottom, anchor body (8) upper end is petrosal foramen (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520177865.5U CN204511481U (en) | 2015-03-27 | 2015-03-27 | A kind of large deformation pressure-relieving achor bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520177865.5U CN204511481U (en) | 2015-03-27 | 2015-03-27 | A kind of large deformation pressure-relieving achor bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204511481U true CN204511481U (en) | 2015-07-29 |
Family
ID=53709471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520177865.5U Expired - Fee Related CN204511481U (en) | 2015-03-27 | 2015-03-27 | A kind of large deformation pressure-relieving achor bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204511481U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106401629A (en) * | 2016-12-14 | 2017-02-15 | 安徽理工大学 | Yielding anchor rod capable of monitoring yielding amount in real-time |
| CN107559033A (en) * | 2017-10-31 | 2018-01-09 | 武汉理工大学 | A kind of multi-functional pressure-relieving achor bar |
| CN111946376A (en) * | 2020-08-20 | 2020-11-17 | 中国科学院武汉岩土力学研究所 | Preparation method of anchor rod stretching damper and anchor rod stretching damper |
-
2015
- 2015-03-27 CN CN201520177865.5U patent/CN204511481U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106401629A (en) * | 2016-12-14 | 2017-02-15 | 安徽理工大学 | Yielding anchor rod capable of monitoring yielding amount in real-time |
| CN107559033A (en) * | 2017-10-31 | 2018-01-09 | 武汉理工大学 | A kind of multi-functional pressure-relieving achor bar |
| CN111946376A (en) * | 2020-08-20 | 2020-11-17 | 中国科学院武汉岩土力学研究所 | Preparation method of anchor rod stretching damper and anchor rod stretching damper |
| CN111946376B (en) * | 2020-08-20 | 2021-09-17 | 中国科学院武汉岩土力学研究所 | Preparation method of anchor rod stretching damper and anchor rod stretching damper |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20150729 Termination date: 20160327 |