CN204804863U - From formula of boring joinable prestressing force slip casting stock - Google Patents
From formula of boring joinable prestressing force slip casting stock Download PDFInfo
- Publication number
- CN204804863U CN204804863U CN201520377475.2U CN201520377475U CN204804863U CN 204804863 U CN204804863 U CN 204804863U CN 201520377475 U CN201520377475 U CN 201520377475U CN 204804863 U CN204804863 U CN 204804863U
- Authority
- CN
- China
- Prior art keywords
- bolt
- stock
- nut
- type coupling
- anchor bar
- 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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- Piles And Underground Anchors (AREA)
Abstract
The utility model relates to a coal mine tunnel stock prestressing force high strength is strutted and is extended anchor bolt support, and especially adopt dark heavily stressed super thick basic high strength of pushing up greatly to the colliery and strut, specific from formula of boring joinable prestressing force slip casting stock that says so, including alloy bit, reinforcement type coupling bar, stock body a, bolt a, sleeve, bolt b, stock body b, only starch stopper, backing plate, nut and bolt c, the alloy bit passes through the screw thread to be connected with reinforcement type coupling bar, and reinforcement type coupling bar is connected through screw thread and stock body an and is consolidated the connection through bolt c, and stock body an and stock physically b pass through sleeve female connection to through the reinforcement of screwing of bolt an and bolt b, stock body b tail end is installed in proper order and is only starched stopper, backing plate and nut, screws through nut and rock mass. Beneficial effect: the utility model discloses through such improvement, length and supporting intensity are strutted what adopt dark, heavily stressed, super thick rock stratum greatly to the effectual stock that has improved.
Description
Technical field
The utility model relates to coal mine roadway anchor rod prestress high strength support and lengthens bolt support, and especially for the high strength support of the dark heavily stressed super thick base object model of coal mine large-mining, a kind of self-drilling can connect prestressing force grouted anchor bar specifically.
Background technology
At present, adopting of China's coal-mine is deeply increasing, and bump is obvious, and rock crushing is serious, and the supporting in tunnel is also more and more difficult.Along with dark further increase adopted by coal, the supporting intensity of roadway support means and anchor pole is had higher requirement.Existing anchor pole is by the impact of lane space, equal 1.5 ~ 2.4 meters of length, good anchoring effect can not be played in the rock stratum blocked up for base object model, applicant is on the basis investigating existing anchor pole, the creationary scheme proposing self-drilling and can connect prestressing force grouted anchor bar, for solving the problem that existing anchoring means run into.
Utility model content
In order to overcome the deficiency of existing anchor rod anchored insufficient strength and anchorage length, effectively solve the problems such as rock-bolt length is inadequate, prestressing force is not enough, its technical scheme adopted is as follows.
Self-drilling can connect prestressing force grouted anchor bar, comprise alloy bit, reinforcement type coupling bar, anchor bar body a, bolt a, sleeve, bolt b, anchor bar body b, stop grouting plug, backing plate, nuts and bolt c, described alloy bit is connected with reinforcement type coupling bar by screw thread, reinforcement type coupling bar to be connected with anchor bar body a by screw thread and to be reinforced the connection by bolt c, anchor bar body a is connected by internal thread of sleeve with anchor bar body b, and undertaken screwing reinforcing by bolt a and bolt b, anchor bar body b tail end installs stop grouting plug, backing plate and nut successively, is screwed by nut and rock mass.
Beneficial effect: the utility model is through such improvement, effectively raise the supporting length of anchor pole in large mining depth, heavily stressed, super thick rock stratum and supporting intensity, solve the problem that conventional anchor supporting length is inadequate, supporting intensity is inadequate, also overcome and affect by lane space, have to by the defect of anchor cable at deep rock strata support, the strong problem that improve deep mining roadway support difficulty.
Accompanying drawing explanation
Accompanying drawing 1: overall structure schematic diagram of the present utility model;
Accompanying drawing 2: sectional view of the present utility model;
Accompanying drawing 3: partial schematic diagram of the present utility model;
Accompanying drawing 4: partial schematic diagram of the present utility model;
Symbol description
1. alloy bit, 2. reinforcement type coupling bar, 3. anchor bar body a, 4. bolt a, 5. sleeve, 6. bolt b, 7. anchor bar body b, 8. stop grouting plug, 9. backing plate, 10. nut, 11. bolt c.
Detailed description of the invention
1-4 by reference to the accompanying drawings, the utility model will be further described:
Self-drilling can connect prestressing force grouted anchor bar, comprise alloy bit (1), reinforcement type coupling bar (2), anchor bar body a (3), bolt a (4), sleeve (5), bolt b (6), anchor bar body b (7), stop grouting plug (8), backing plate (9), nut (10) and bolt c (11), described device anchored end is provided with an alloy bit (1), alloy bit (1) is connected with reinforcement type coupling bar (2) by screw thread, reinforcement type coupling bar (2) is connected by screw thread with anchor bar body a (3) and passes through bolt c (11) and reinforces the connection, anchor bar body a (3) is connected by sleeve (5) internal thread with anchor bar body b (7), and undertaken screwing reinforcing by bolt a (4) and bolt b (6), roof-bolter directly can carry out boring deeply by anchor bar body a (3) and anchor bar body b (7), after anchor bar body a (3) is connected with anchor bar body b (7), length will be the twice of conventional anchor, the existing anchor pole of effective solution pierces the inadequate defect of the degree of depth, anchor bar body b (7) tail end installs stop grouting plug (8) successively, backing plate (9) and nut (10), screwed by nut (10) and rock mass.
Claims (1)
1. self-drilling can connect prestressing force grouted anchor bar, it is characterized in that comprising: alloy bit (1), reinforcement type coupling bar (2), anchor bar body a (3), bolt a (4), sleeve (5), bolt b (6), anchor bar body b (7), stop grouting plug (8), backing plate (9), nut (10) and bolt c (11), described alloy bit (1) is connected with reinforcement type coupling bar (2) by screw thread, reinforcement type coupling bar (2) is connected by screw thread with anchor bar body a (3) and passes through bolt c (11) and reinforces the connection, anchor bar body a (3) is connected by sleeve (5) internal thread with anchor bar body b (7), and undertaken screwing reinforcing by bolt a (4) and bolt b (6), anchor bar body b (7) tail end installs stop grouting plug (8) successively, backing plate (9) and nut (10), screwed by nut (10) and rock mass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520377475.2U CN204804863U (en) | 2015-05-30 | 2015-05-30 | From formula of boring joinable prestressing force slip casting stock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520377475.2U CN204804863U (en) | 2015-05-30 | 2015-05-30 | From formula of boring joinable prestressing force slip casting stock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204804863U true CN204804863U (en) | 2015-11-25 |
Family
ID=54589705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520377475.2U Expired - Fee Related CN204804863U (en) | 2015-05-30 | 2015-05-30 | From formula of boring joinable prestressing force slip casting stock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204804863U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105781598A (en) * | 2016-03-15 | 2016-07-20 | 中国矿业大学(北京) | Extensible anchor rod |
| CN107288671A (en) * | 2017-08-21 | 2017-10-24 | 河南理工大学 | Reinforcing soft broken coal rock body bores the integrated extensible anchor pole of envelope note and its construction method |
| CN114108643A (en) * | 2020-08-31 | 2022-03-01 | 南京城市地下空间工程研究院有限公司 | Foundation pit deformation reinforcing device and method based on shear-resistant anchor pipe cable supporting structure |
-
2015
- 2015-05-30 CN CN201520377475.2U patent/CN204804863U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105781598A (en) * | 2016-03-15 | 2016-07-20 | 中国矿业大学(北京) | Extensible anchor rod |
| CN107288671A (en) * | 2017-08-21 | 2017-10-24 | 河南理工大学 | Reinforcing soft broken coal rock body bores the integrated extensible anchor pole of envelope note and its construction method |
| CN114108643A (en) * | 2020-08-31 | 2022-03-01 | 南京城市地下空间工程研究院有限公司 | Foundation pit deformation reinforcing device and method based on shear-resistant anchor pipe cable supporting structure |
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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 |
Granted publication date: 20151125 Termination date: 20160530 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |