CN203114315U - Yielding anchor rod capable of monitoring prestress by itself - Google Patents
Yielding anchor rod capable of monitoring prestress by itself Download PDFInfo
- Publication number
- CN203114315U CN203114315U CN 201320083691 CN201320083691U CN203114315U CN 203114315 U CN203114315 U CN 203114315U CN 201320083691 CN201320083691 CN 201320083691 CN 201320083691 U CN201320083691 U CN 201320083691U CN 203114315 U CN203114315 U CN 203114315U
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- Prior art keywords
- prestress
- tube
- yielding
- anchor rod
- monitoring
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Abstract
The utility model provides a yielding anchor rod capable of monitoring prestress by itself. The yielding anchor rod capable of monitoring the prestress by itself comprises an anchor rod body, a supporting plate, a yielding tube and a nut, wherein the anchor rod body comprises a rod body and a tail portion, the supporting plate, the yielding tube and the nut are sleeved on the rod body sequentially, a prestress-monitoring tube is further arranged on one side close to the tail portion of the rod body of the yielding tube, the prestress-monitoring tube is sleeved on the rod body and is connected with the yielding tube, a rigid gasket is arranged between the yielding tube and the supporting plate, a rigid gasket and a resin gasket are arranged between the prestress-monitoring tube and the nut, and the resin gasket is arranged on one side close to the nut. According to the yielding anchor rod capable of monitoring the prestress by itself, the prestress-monitoring tube is arranged on the anchor rod body, the prestress-monitoring tube can be processed according to the anchor rod prestress value designed in the site, so that the objective that the prestress-monitoring tube deforms when installation prestress reaches the designed prestress value is guaranteed and site operation of construction personnel is convenient. When stress received by the anchor rod is large, the yielding tube can bring the characteristic yielding function of the yielding tube into play so as to fit in with deformation of surrounding rock, and the objective that the anchor rod cannot be useless in the whole retaining and protecting period is guaranteed.
Description
Technical field
The utility model relates to the deep-well that is applied in high-ground stress, be subjected to dynamic pressure to influence the pressure-relieving achor bar of the roadway with large deformation such as soft rock of difficulty of bigger tunnel or supporting, especially a kind of prestressing force pressure-relieving achor bar of testing oneself.
Background technology
In recent years, along with further developing of bolt support correlation theory research, especially the promotion and application of bolt support in soft, broken, dynamic pressure, large span and high-ground stress tunnel, deep, people recognize gradually in work progress anchor pole are applied the effect that certain prestressing force can significantly improve roadway support, there are some researches prove: when anchor rod prestress reaches 60～70kN when above, can stop the sinking of back substantially.Along with further developing of bolt support, aspects such as the anchor rod supporting theory of China, design and construction technology will enter into a high prestressed new stage of conscious application comprehensively.
The prestressing force of anchor pole (installation stress) is very crucial concerning active support system-bolt support system, and the bolt support system must have enough prestressing force just can prevent further developing of roof delamination and relaxation zone, controls the early deformation of country rock as far as possible.Colliery scene in China, anchor pole are installed and had following problem: one, the constructor is not enough to understanding systematicly of anchor rod supporting theory, and when anchor pole was installed, prestressing force did not reach designing requirement, has had a strong impact on the supporting effect of anchor pole.Two, existing anchor rod prestress monitoring equipment is less and operation is extremely inconvenient, has both increased the economic benefit that working strength of workers has also influenced ore deposit side to a certain extent.
Prior art awaits further progressive and raising.
The utility model content
For solving the monitoring problem of on-the-spot anchor rod prestress in the prior art, the on-the-spot high-quality installation of finishing anchor pole of convenient construction personnel, for adapting to deep-well, soft rock and being subjected to dynamic pressure to influence the needs of tangible roadway with large deformation, the utility model proposes a kind of prestressed pressure-relieving achor bar of monitoring simultaneously.
For solving the problems of the technologies described above, the utility model scheme comprises:
A kind of prestressing force pressure-relieving achor bar of testing oneself, comprise anchor bar body, pallet, allow pressure pipe and nut, described anchor bar body comprises head, the body of rod and afterbody, described body of rod afterbody is provided with screw thread, the diameter of described screw thread is greater than the diameter of the body of rod, described pallet, allow pressure pipe and nut be nested with in turn on the described body of rod, the described pressure pipe that allows also is provided with the prestressing force monitoring pipe near a side of body of rod afterbody, described prestressing force monitoring pipe be nested with on the body of rod and with allow pressure pipe be connected, described allowing is provided with the rigidity packing ring between pressure pipe and the pallet, be provided with rigidity packing ring and resin packing ring between described prestressing force monitoring pipe and the nut, described resin packing ring is in close nut one side setting.
Described prestressing force monitoring pipe is thin, the middle thick cydariform tubular structure in two.
The prestressing force pressure-relieving achor bar of testing oneself that the utility model proposes, anchor bar body is provided with the prestressing force monitoring pipe, this prestressing force monitoring pipe can be processed according to the anchor rod prestress value of Site Design, thereby guarantee when installation stress reaches the prestressing force design load, the prestressing force monitoring pipe namely deforms, convenient construction personnel execute-in-place; Stressed when big at anchor pole, allow pressure pipe can bring into play its distinctive compression functions that allows, with the distortion of suitable for surrounding rock, the protection anchor pole did not lose efficacy during whole supporting.
Description of drawings
Newly be further described in detail originally practical below in conjunction with accompanying drawing:
Fig. 1 is structural representation of the present utility model.
Among Fig. 1,1, the body of rod 2, pallet 3, allow pressure pipe 4, prestressing force monitoring pipe 5, rigidity packing ring 6, resin packing ring 7, nut.
The specific embodiment
The utility model proposes a kind of prestressing force pressure-relieving achor bar of testing oneself, clearer, clear and definite in order to make the purpose of this utility model, technical scheme and advantage, below with reference to specific embodiment, the utility model is further described.
As shown in Figure 1, a kind of prestressing force pressure-relieving achor bar of testing oneself, comprise anchor bar body, pallet 2, allow pressure pipe 3 and nut 7, wherein, anchor bar body comprises the head (not shown), the body of rod 1 and afterbody, body of rod afterbody is provided with screw thread, the diameter of screw thread is greater than the diameter of the body of rod, pallet 2, allow pressure pipe 3 and nut 7 be nested with in turn on the body of rod 1, pallet 2, allow pressure pipe 3 and nut 7 screw by the internal thread of nut, when stressed bigger owing to the drastic deformation of country rock produces of anchor pole, allow pressure pipe make the country rock release by the compressive strain that allows of self, make anchor pole under high-ground stress, effectively bring into play the compression functions that allows of self, to safeguard stability of the roadway; Allow pressure pipe 3 also be provided with prestressing force monitoring pipe 4 near a side of body of rod afterbody, prestressing force monitoring pipe 4 also is to be nested with on the body of rod, and prestressing force monitoring pipe 4 and allow pressure pipe 3 link together, when anchor pole is installed, when prestressing force reaches the distortion load of prestressing force monitoring pipe, the prestressing force monitoring pipe produces distortion, thereby proof prestressing force reaches a certain design load; The prestressing force monitoring pipe also can be processed according to the anchor rod prestress value of Site Design, thereby guarantees that the prestressing force monitoring pipe namely deforms, convenient construction personnel execute-in-place when installation stress reaches the prestressing force design load.
Allow be provided with rigidity packing ring 5 between pressure pipe 3 and the pallet 2, be provided with rigidity packing ring 5 and resin packing ring 6 between prestressing force monitoring pipe 4 and the nut 7, resin packing ring 6 is in the side setting near nut 7.
Preferably, prestressing force monitoring pipe 4 is thin, the middle thick cydariform tubular structure in two, deforms easily when it is squeezed.
Preferably, allow pressure pipe 3 also can adopt thin, the middle thick cydariform tubular structure in two, it allows compression functions with better performance.
Resin packing ring 6 is to screw better for rigidity packing ring 5 and nut 7.
Should be understood that; those of ordinary skill in the art is under enlightenment of the present utility model; not breaking away under the scope that the utility model claim protects, can also make various deformation such as replacement, simple combination, the scope of asking for protection of the present utility model should be as the criterion with claims.
Claims (2)
1. prestressing force pressure-relieving achor bar of testing oneself, comprise anchor bar body, pallet, allow pressure pipe and nut, described anchor bar body comprises head, the body of rod and afterbody, described body of rod afterbody is provided with screw thread, the diameter of described screw thread is greater than the diameter of the body of rod, described pallet, allow pressure pipe and nut be nested with in turn on the described body of rod, it is characterized in that: the described pressure pipe that allows also is provided with the prestressing force monitoring pipe near a side of body of rod afterbody, described prestressing force monitoring pipe be nested with on the body of rod and with allow pressure pipe be connected, described allowing is provided with the rigidity packing ring between pressure pipe and the pallet, be provided with rigidity packing ring and resin packing ring between described prestressing force monitoring pipe and the nut, described resin packing ring is in close nut one side setting.
2. a kind of prestressing force pressure-relieving achor bar of testing oneself according to claim 1 is characterized in that: described prestressing force monitoring pipe is thin, the middle thick cydariform tubular structure in two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320083691 CN203114315U (en) | 2013-02-22 | 2013-02-22 | Yielding anchor rod capable of monitoring prestress by itself |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320083691 CN203114315U (en) | 2013-02-22 | 2013-02-22 | Yielding anchor rod capable of monitoring prestress by itself |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203114315U true CN203114315U (en) | 2013-08-07 |
Family
ID=48894675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320083691 Expired - Fee Related CN203114315U (en) | 2013-02-22 | 2013-02-22 | Yielding anchor rod capable of monitoring prestress by itself |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203114315U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103670473A (en) * | 2013-11-28 | 2014-03-26 | 尤洛卡矿业安全工程股份有限公司 | Anchor bolt fastening force status indication washer |
| CN104533488A (en) * | 2015-01-22 | 2015-04-22 | 山东科技大学 | Buffer yielding pretightening force measurable anchor rod tray |
| CN105946159A (en) * | 2016-05-04 | 2016-09-21 | 江苏中南建筑产业集团有限责任公司 | Production method for FRP nut clamped double-pressure-relieving composite anchorage pier |
| CN112145211A (en) * | 2020-09-29 | 2020-12-29 | 华北水利水电大学 | Let clamping ring device with early warning function |
-
2013
- 2013-02-22 CN CN 201320083691 patent/CN203114315U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103670473A (en) * | 2013-11-28 | 2014-03-26 | 尤洛卡矿业安全工程股份有限公司 | Anchor bolt fastening force status indication washer |
| CN103670473B (en) * | 2013-11-28 | 2017-01-18 | 尤洛卡（山东）深部地压防治安全技术有限公司 | Anchor bolt fastening force status indication washer |
| CN104533488A (en) * | 2015-01-22 | 2015-04-22 | 山东科技大学 | Buffer yielding pretightening force measurable anchor rod tray |
| CN105946159A (en) * | 2016-05-04 | 2016-09-21 | 江苏中南建筑产业集团有限责任公司 | Production method for FRP nut clamped double-pressure-relieving composite anchorage pier |
| CN105946159B (en) * | 2016-05-04 | 2018-07-03 | 江苏中南建筑产业集团有限责任公司 | A kind of production method of the double slow compound anchor piers of pressure of FRP nuts clamping |
| CN112145211A (en) * | 2020-09-29 | 2020-12-29 | 华北水利水电大学 | Let clamping ring device with early warning function |
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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: 20130807 Termination date: 20150222 |
|
| EXPY | Termination of patent right or utility model |