CN202882966U - Recoverable soft rock self-tapping anchor rod - Google Patents
Recoverable soft rock self-tapping anchor rod Download PDFInfo
- Publication number
- CN202882966U CN202882966U CN 201220547406 CN201220547406U CN202882966U CN 202882966 U CN202882966 U CN 202882966U CN 201220547406 CN201220547406 CN 201220547406 CN 201220547406 U CN201220547406 U CN 201220547406U CN 202882966 U CN202882966 U CN 202882966U
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- rod
- soft rock
- anchor rod
- tapping
- rock
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- Expired - Fee Related
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Abstract
The utility model relates to a recoverable soft rock self-tapping anchor rod. The recoverable soft rock self-tapping anchor rod comprises a rod body and a supporting board fixed on the tail portion of the rod body through a nut. The rod is in a hollow rod shape. The head portion of the rod body is machined to be in a drill shape. Screw vanes are machined on the outer wall of the rod body. According to the recoverable soft rock self-tapping anchor rod, when the tapered screw vanes are installed on the rod body, no holes are needed to be perforated when the recoverable soft rock self-tapping anchor rod is installed, the recoverable soft rock self-tapping anchor rod can directly drill in a rock layer to carry out self-tapping, no water is needed to be injected in a drilling hole during a rock layer drilling process, the rock layer is prevented from water and being softened, strength of surrounding rocks is guaranteed, further, the rod body is designed in a hollow mode, mashgas discharge or grouting can be achieved, the recoverable soft rock self-tapping anchor rod is used for retaining and protecting a surrounding rock fracture zone, an ordinary mortar anchor rod is replaced, the problems of an ordinary mortar anchor that a hole is collapsed, and a rod can not be inserted and the like are overcome, in addition, the hollow anchor rod can be further used as a guiding drain hole to drain containing water in the rock layer, and soft rock strength is improved.
Description
Technical field
The utility model belongs to mining engineering and field of civil engineering, is specifically related to a kind of recyclable soft rock thread tapping anchor pole of the reinforcing for underground construction, mine working and chamber support and side slope, tunnel, dam body.
Background technology
Bolt support technology is generally adopting aspect the reinforcing of underground construction and mine working chamber support and side slope, tunnel, dam body.The bolt support owner moves supporting, takes full advantage of the tunnel and the surrounding rock of chamber self-supporting ability that just excavate, and the rock stratum is strapped in together, makes country rock form reinforcing arch or compound beam or suspension function and realizes that reinforcing to rock is with supported laneway and chamber.
The widely used resin anchor in geotechnical engineering, particularly mine, especially colliery mostly is end anchor anchor pole at present, and anchor pole mainly plays suspension function but not compound action to the next rock stratum of anchor point, and is better to the rock stratum anchoring effect that hardness is larger.But when running into the thinner soft rock of layering, when particularly meeting the water softening mud stone, there is the outwardly problem of the easy absciss layer of the next incompetent bed in this anchorage style, cause Supporting plate for anchor (especially little supporting plate) depression, the drift section convergence, incompetent bed comes off when serious, and then cause absciss layer come off scope upwards (inner) enlarge, finally cause anchor pole to lose efficacy, cause the anti-revisionist amount in tunnel to increase, have serious potential safety hazard.
When the widely used resin anchor in mine is installed, accomplish fluently first boring and could install, better to the hard formation anchoring effect.Soft rock suffers artificial destruction when punching for soft rock, and especially wet type (water filling depositing dust) punching causes softening rock argillization, anchoring effect extreme difference even inefficacy.Resin anchor is normally not recyclable after installation in addition.The anchor pole that is installed in the coal seam affects the coal-winning machine coal cutting, and coal winning machine cutting bit and irony anchor pole bump easily produces spark, particularly high gas or coal and the Gas Outburst colliery machine cut irony anchor pole of forbidding mining.Strike spark for eliminating irony, the fully-mechanized mining working tunnel is used glass fibre reinforced plastics rockbolts replacement irony anchor pole instead and is helped anchor, and anchoring strength reduces or be not enough, and cost increases.Therefore, existing anchor pole all can not satisfy the needs that use well.
The utility model content
In order to solve the not reproducible use of anchor pole of the prior art and the problem poor to the incompetent bed anchoring effect, the utility model provides a kind of can directly pierce the voluntarily recyclable soft rock thread tapping anchor pole of tapping and recoverable of rock stratum.
The technical scheme of the utility model technical solution problem is: recyclable soft rock thread tapping anchor pole comprises the body of rod and the supporting plate that is fixed on body of rod afterbody by nut, the body of rod is hollow shaft-like, the head of the body of rod is processed into drill-shape, is processed with helical blade at the outer wall of the body of rod.
The edge of above-mentioned helical blade is with tapering.
Along the head of the body of rod to caudal directions, a spiral external diameter of helical blade is less than an adjacent spiral external diameter.
The afterbody of the above-mentioned body of rod is processed with interior six sides or interior cubic counterbore.
The utility model need not punch when the body of rod arranges the helical blade installation of tapering in advance, can directly pierce voluntarily tapping of rock stratum, need not be to pouring water into borehole in piercing the rock stratum process, prevent the water softening of mud stone chance, the intensity of rock around having guaranteed, and body of rod hollow design, can realize drawing-off gas or slip casting, be used for the supporting of rock crusher band, replace the ordinary mortar anchor pole, overcome ordinary mortar anchor pole such as the hole of collapsing, can't inserted link etc. a difficult problem, also can utilize hollow bolt as the guide water hole, moisture with in the white-out rock stratum improved soft rock intensity.Anchor pole recoverable of the present utility model can improve the anchor pole reusability, reduce cost, and can eliminate anchor pole to the impact of coal-winning machine coal cutting.The utility model is applicable to the incompetent bed anchoring, the anchoring in particularly suitable coal seam.
Description of drawings
Fig. 1 is structural representation of the present utility model.
The specific embodiment
Now in conjunction with the accompanying drawings and embodiments the utility model is further specified, but the utility model is not limited only to the structure of following embodiment.
Embodiment 1
Referring to Fig. 1, the recyclable soft rock thread tapping anchor pole of present embodiment is made of the body of rod 1, nut 2, supporting plate 3, helical blade 4 connections.
The body of rod 1 of present embodiment is hollow rod shape, namely be provided with cavity at the center of the body of rod 1, head at the body of rod 1 is processed into drill-shape, it is sharp shape, at the helical blade 4 of the outer wall of the body of rod 1 processing with tapering, each spiral of helical blade 4 is along with the body of rod 1 progressively becomes large from the beginning to the end, i.e. the thin thick middle in the edge of helical blade 4, direction along the head of the body of rod 1 to afterbody, the external diameter of a spiral is less than the external diameter of an adjacent spiral.The afterbody of the body of rod 1 along the body of rod 1 axially be processed with interior hexagonal hole, be processed with screw thread at the outer wall of afterbody, the afterbody of the body of rod 1 is passed at the middle part of supporting plate, by fastening with the adaptive nut 2 of screw thread.
During use, supporting plate is enclosed within on the body of rod 1 first, uses again nut 2 that it is fastening, the body of rod 1 is directly pierced incompetent bed and to voluntarily tapping of incompetent bed with rig, but the cavity slip casting in the body of rod 1 or firedamp drainage or draining.Also can add first the anchor pole that expansion tube is installed present embodiment again if run into the dead-soft rock stratum.If needing the recovery anchor pole can counter-rotate the body of rod 1 gets final product.
Embodiment 2
Afterbody at the body of rod 1 of present embodiment is processed with interior cubic counterbore, is processed into the tooth shape shape of drill-bit type at the head of the body of rod 1, is beneficial to tapping.Other parts and connecting relation thereof are identical with embodiment 1.
Claims (4)
1. recyclable soft rock thread tapping anchor pole, comprise the body of rod (1) and the supporting plate that is fixed on the body of rod (1) afterbody by nut (2), it is characterized in that: the body of rod (1) is for hollow shaft-like, the head of the body of rod (1) is processed into drill-shape, is processed with helical blade (4) at the outer wall of the body of rod (1).
2. recyclable soft rock thread tapping anchor pole according to claim 1, it is characterized in that: the edge of described helical blade (4) is with tapering.
3. recyclable soft rock thread tapping anchor pole according to claim 2 is characterized in that: along the head of the body of rod (1) to caudal directions, a spiral external diameter of helical blade (4) is less than an adjacent spiral external diameter.
4. according to claim 1 and 2 or 3 described recyclable soft rock thread tapping anchor poles, it is characterized in that: the afterbody of the described body of rod (1) is processed with interior six sides or interior cubic counterbore.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220547406 CN202882966U (en) | 2012-10-24 | 2012-10-24 | Recoverable soft rock self-tapping anchor rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220547406 CN202882966U (en) | 2012-10-24 | 2012-10-24 | Recoverable soft rock self-tapping anchor rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202882966U true CN202882966U (en) | 2013-04-17 |
Family
ID=48074406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220547406 Expired - Fee Related CN202882966U (en) | 2012-10-24 | 2012-10-24 | Recoverable soft rock self-tapping anchor rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202882966U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105178994A (en) * | 2015-09-08 | 2015-12-23 | 中国矿业大学(北京) | Recyclable anchor rod and retaining and protecting method thereof |
| CN105604593A (en) * | 2016-03-17 | 2016-05-25 | 天津大学 | Three-stage anchoring combined type hollow grouting anchor rod |
| CN106087945A (en) * | 2016-06-07 | 2016-11-09 | 浙江大学 | Earth anchor and counter-force load precompressed soft foundation processing method |
| CN106121696A (en) * | 2016-08-12 | 2016-11-16 | 中冶华天工程技术有限公司 | Anchor tube and the installation method of anchor tube and recovery method |
| CN106194227A (en) * | 2016-08-08 | 2016-12-07 | 何满潮 | Gob side entry retaining control side device and gob side entry retaining control side construction method |
| CN107165172A (en) * | 2017-07-18 | 2017-09-15 | 朱鹏强 | Clothoid type steel pipe support pile and support anchor rod and both application processes |
| CN110144904A (en) * | 2019-06-06 | 2019-08-20 | 招商局重庆交通科研设计院有限公司 | It is a kind of to face upward inclined discharge structure and its construction method with anchoring function certainly |
| CN110259494A (en) * | 2019-06-18 | 2019-09-20 | 山东科技大学 | A kind of spiral tooth type suppression tube expansion and its application method |
-
2012
- 2012-10-24 CN CN 201220547406 patent/CN202882966U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105178994A (en) * | 2015-09-08 | 2015-12-23 | 中国矿业大学(北京) | Recyclable anchor rod and retaining and protecting method thereof |
| CN105604593A (en) * | 2016-03-17 | 2016-05-25 | 天津大学 | Three-stage anchoring combined type hollow grouting anchor rod |
| CN105604593B (en) * | 2016-03-17 | 2018-05-04 | 天津大学 | A kind of three stages anchoring Combined hollow grouted anchor bar |
| CN106087945A (en) * | 2016-06-07 | 2016-11-09 | 浙江大学 | Earth anchor and counter-force load precompressed soft foundation processing method |
| CN106087945B (en) * | 2016-06-07 | 2018-07-31 | 浙江大学 | Earth anchor and counter-force load precompressed soft foundation processing method |
| CN106194227A (en) * | 2016-08-08 | 2016-12-07 | 何满潮 | Gob side entry retaining control side device and gob side entry retaining control side construction method |
| CN106121696A (en) * | 2016-08-12 | 2016-11-16 | 中冶华天工程技术有限公司 | Anchor tube and the installation method of anchor tube and recovery method |
| CN107165172A (en) * | 2017-07-18 | 2017-09-15 | 朱鹏强 | Clothoid type steel pipe support pile and support anchor rod and both application processes |
| CN110144904A (en) * | 2019-06-06 | 2019-08-20 | 招商局重庆交通科研设计院有限公司 | It is a kind of to face upward inclined discharge structure and its construction method with anchoring function certainly |
| CN110259494A (en) * | 2019-06-18 | 2019-09-20 | 山东科技大学 | A kind of spiral tooth type suppression tube expansion and its application method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130417 Termination date: 20131024 |