CN102434179B - Deformation anchor cable capable of increasing resistance continuously - Google Patents
Deformation anchor cable capable of increasing resistance continuously Download PDFInfo
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- CN102434179B CN102434179B CN2011103688058A CN201110368805A CN102434179B CN 102434179 B CN102434179 B CN 102434179B CN 2011103688058 A CN2011103688058 A CN 2011103688058A CN 201110368805 A CN201110368805 A CN 201110368805A CN 102434179 B CN102434179 B CN 102434179B
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- contractibility
- stay guy
- friction sleeve
- anchor cable
- sleeve pipe
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Abstract
The invention discloses a deformation anchor cable capable of increasing resistance continuously, which is characterized by comprising a friction sleeve, a contractible member and a first fixing inhaul cable. The inner diameter of the friction sleeve decreases from one end of the sleeve to the other end of the sleeve gradually. The contractible member is of a tubular structure and nested in the friction sleeve, the outer diameter of the contractible member decreases from one end of the member to the other end of the member gradually, and the outer wall of the contractible member is contacted with the inner wall of the friction sleeve. One end of the first fixing inhaul cable is connected with the contractible member, and the first fixing inhaul cable is led out from one side at the pipe orifice end with smaller inner diameter of the friction sleeve. When large deformation occurs on surrounding rocks, the deformation anchor cable can be tensioned to stretch without being damaged, increase working resistance continuously and absorb deformation energy of the surrounding rocks constantly in the process. Furthermore, the deformation anchor cable capable of increasing the resistance continuously has the advantages of being simple in structure, easy to process, convenient to operate and the like.
Description
Technical field
The present invention relates to the anchor cable in the underground constructions such as a kind of Hydraulic and Hydro-Power Engineering, construction of tunnel, mine engineering, relate in particular to a kind of produce continuous modification and not failure increase resistance continuous modification high-strength anchor cable.
Background technology
In the underground constructions such as Hydraulic and Hydro-Power Engineering, construction of tunnel, mine engineering, anchor cable is a lot of a kind of support equipment of application.Along with mining depth constantly increases and the construction of underground construction on a large scale, the geological conditions faced becomes increasingly complex, and country rock often shows the large deformation characteristics.When rock deformation is larger, while surpassing the scope that anchor cable can bear, will cause the anchor cable damage inactivation, and then cause underground construction unstable failure accident.The anchor cable deformable amount adopted at present is all very little, and unstable properties, and processing difficulties can not adapt to the characteristics of large deformation, can not meet modern underground engineering support demand.
Summary of the invention
Task of the present invention is to provide a kind of continuous resistance-increasing deforming anchor cable.This continuous resistance-increasing deforming anchor cable can be when country rock generation large deformation tension elongation and failure not itself, and with surrouding rock deformation, working resistance constantly increases, and in deformation process, can also absorb the surrouding rock deformation energy.
Its technical solution is:
A kind of continuous resistance-increasing deforming anchor cable comprises:
The friction sleeve pipe, the internal diameter of friction sleeve pipe diminishes gradually from the end to end of sleeve pipe;
The contractibility member, the contractibility member is tubular structure, is nested in the friction sleeve pipe, and the external diameter of contractibility member diminishes gradually from the end to end of member, and the outer wall of contractibility member keeps in touch with the inwall of friction sleeve pipe;
The first stay guy, an end of the first stay guy is connected with the contractibility member, and nose end one side that the first stay guy is little from the friction sleeve bore is drawn.
Be provided with the second stay guy at the large nose end of above-mentioned friction sleeve bore, the second stay guy is connected with nose end by the drag-line termination.
Above-mentioned drag-line termination and nose end are threaded connection.
The end that above-mentioned the first stay guy is little from contractibility member external diameter passes the contractibility member, an end that passes the contractibility member at the first stay guy is provided with the drag-line protruding head that is greater than contractibility member tube chamber, by the drag-line protruding head, the first stay guy and contractibility member is linked together.
Be provided with the circumferential rib line on the inner tubal wall of above-mentioned friction sleeve pipe, and/or be provided with suitable circumferential rib line on the outer wall of contractibility member.
Above-mentioned contractibility member is one section truncated cone-shaped or conical steel pipe, is provided with a breach stretched vertically on tube wall.
Above-mentioned continuous resistance-increasing deforming anchor cable also comprises nut and pallet, free end at the second stay guy is provided with threaded joints, pallet is fixed on the place, aperture of boring, and the free end of the second stay guy stretches out pallet, and nut is connected on the threaded joints of the second stay guy.
The main part of above-mentioned the first stay guy and the second stay guy takes steel strand to make.
Above-mentioned continuous resistance-increasing deforming anchor cable also comprises nut and pallet, and the connecting rod coordinated with nut blocks up and is fixed on the nose end that the friction sleeve bore is large by sleeve end; Pallet is fixed on the place, aperture of boring, and the free end of connecting rod stretches out pallet, and nut is connected on the thread segment of connecting rod; Above-mentioned sleeve end is stifled to be threaded connection with nose end.
The present invention has following useful technique effect:
The present invention can tension when roadway surrounding rock generation large deformation elongation and failure not itself, and can increase continuously working resistance, can also constantly absorb the surrouding rock deformation energy in this process.In addition, also have simple in structurely, be easy to processing, the characteristics such as easy to operate.
The accompanying drawing explanation
Below in conjunction with accompanying drawing and the specific embodiment, the invention will be further described:
The structural principle schematic diagram that Fig. 1 is one embodiment of the present invention.
The main TV structure principle schematic that Fig. 2 is friction sleeve pipe in Fig. 1 mode.
The left TV structure principle schematic that Fig. 3 is Fig. 2 mode.
The main TV structure principle schematic that Fig. 4 is contractibility member in Fig. 1 mode.
The left TV structure principle schematic that Fig. 5 is Fig. 4 mode.
The structural principle schematic diagram that Fig. 6 is another embodiment of the present invention.
The specific embodiment
In conjunction with Fig. 1 to Fig. 5, a kind of continuous resistance-increasing deforming anchor cable, comprise friction sleeve pipe 1, contractibility member 2, the first stay guy 3, the second stay guy 4, pallet 5 and nut 6.
Above-mentioned friction sleeve pipe, its internal diameter diminishes gradually from the end to end of sleeve pipe.As select truncated cone-shaped or conical steel pipe.The inside and outside tube wall of above-mentioned friction sleeve pipe is except adopting conventional light face structure; Also can adopt a kind of like this optimal way, on inner tubal wall or inner tubal wall and outer tube wall, be provided with the circumferential rib line, for increasing friction factor.Be provided with the second stay guy at the large nose end of above-mentioned friction sleeve bore, the second stay guy is connected with nose end by drag-line termination 7; Above-mentioned drag-line termination 7 can be threaded connection with nose end.
Above-mentioned contractibility member, this contractibility member is tubular structure, is nested in the friction sleeve pipe, and the external diameter of contractibility member diminishes gradually from the end to end of member, and the outer wall of contractibility member keeps in touch with the inwall of friction sleeve pipe.The wall thickness of above-mentioned contractibility member member axially on identical, as select one section truncated cone-shaped or conical steel pipe; Be provided with a breach 9 stretched vertically on the tube wall of steel pipe, the steel pipe of this technical approach can be described as again semicircle steel pipe or steel pipe with seam.The radial rigidity of contractibility member is less than the radial rigidity of friction sleeve pipe, can produce closure deformation and produce radially deformation when stressed.On the outer wall of contractibility member, also can be provided with and the suitable circumferential rib line of sleeve pipe circumferential rib line that rubs.One end of the first stay guy is connected with the contractibility member, and nose end one side that the first stay guy is little from the friction sleeve bore is drawn; A kind of like this optimal way is arranged, be that the end that above-mentioned the first stay guy is little from contractibility member external diameter passes the contractibility member, an end that passes the contractibility member at the first stay guy is provided with the drag-line protruding head 8 that is greater than contractibility member tube chamber, by drag-line protruding head 8, the first stay guy and contractibility member is linked together.In this mode, at the free end of the second stay guy, be provided with threaded joints, pallet is fixed on the place, aperture of boring, and the free end of the second stay guy stretches out pallet, and nut is connected on the threaded joints of the second stay guy.
In aforesaid way, as a kind of preferred means, the main part of the first stay guy and the second stay guy takes steel strand to make.
In conjunction with Fig. 6, a kind of continuous resistance-increasing deforming anchor cable, comprise friction sleeve pipe 1, contractibility member 2, the first stay guy 3, pallet 5 and nut 6.
Above-mentioned friction sleeve pipe, its internal diameter diminishes gradually from the end to end of sleeve pipe.As select truncated cone-shaped or conical steel pipe.The inner tubal wall of above-mentioned friction sleeve pipe is except adopting conventional light face structure; Also can adopt a kind of like this optimal way, on inner tubal wall, be provided with the circumferential rib line, for increasing friction factor.Be provided with connecting rod 4 at the large nose end of above-mentioned friction sleeve bore, connecting rod blocks up 7 by sleeve end and is connected with nose end; Above-mentioned sleeve end is stifled can be threaded connection with nose end.
Above-mentioned contractibility member, this contractibility member is tubular structure, is nested in the friction sleeve pipe, and the external diameter of contractibility member diminishes gradually from the end to end of member, and the outer wall of contractibility member keeps in touch with the inwall of friction sleeve pipe.The wall thickness of above-mentioned contractibility member member axially on identical, as select one section truncated cone-shaped or conical steel pipe; Be provided with a breach stretched vertically on the tube wall of steel pipe, the steel pipe of this technical approach can be described as again semicircle steel pipe or steel pipe with seam.The radial rigidity of contractibility member is less than the radial rigidity of friction sleeve pipe, can produce closure deformation and produce radially deformation when stressed.On the outer wall of contractibility member, also can be provided with and the suitable circumferential rib line of sleeve pipe circumferential rib line that rubs.One end of the first stay guy is connected with the contractibility member, and nose end one side that the first stay guy is little from the friction sleeve bore is drawn; A kind of like this optimal way is arranged, be that the end that above-mentioned the first stay guy is little from contractibility member external diameter passes the contractibility member, an end that passes the contractibility member at the first stay guy is provided with the drag-line protruding head 8 that is greater than contractibility member tube chamber, by drag-line protruding head 8, the first stay guy and contractibility member is linked together.In this mode, pallet is fixed on the place, aperture of boring, and the free end of connecting rod stretches out pallet, and nut is connected on the thread segment of connecting rod.
Its operating principle is roughly:
By resin anchoring agent etc., the first stay guy one end is fixed on to boring depths (at the bottom of hole).When country rock deforms and anchor cable tension force while surpassing a threshold value, pull the slippage of contractibility member by the first stay guy, because the friction sleeve bore diminishes from inside to outside gradually, cause contractibility member generation closure deformation, and the friction sleeve pipe is produced to increasing extruding force, produce the frictional resistance constantly increased thus and between the friction sleeve pipe.Along with the continuous increase of working resistance, produce the continuous inhibition effect that increases, can also allow drag-line that larger displacement occurs and be out of shape with suitable for surrounding rock, in the surrouding rock deformation process, also can constantly absorb the surrouding rock deformation energy, keep the stable of country rock.
The present invention's any anchor cable different from the past.It takes full advantage of the characteristics of the high deformation rigidity of notched cylindrical steel tube, can produce increasing counter-force when pressurized is closed to realize increasing inhibition effect, and the radially deformation that axial displacement is converted into to the contractibility member is to realize the purpose of continuous modification.
The above; be only the present invention's specific embodiment preferably, but protection scope of the present invention is not limited to this, anyly is familiar with in technical scope that those skilled in the art disclose in the present invention; the variation that can expect easily or replacement, within all should being encompassed in protection scope of the present invention.
Claims (7)
1. a continuous resistance-increasing deforming anchor cable is characterized in that comprising:
The friction sleeve pipe, the internal diameter of friction sleeve pipe diminishes gradually from the end to end of sleeve pipe;
The contractibility member, the contractibility member is tubular structure, is nested in the friction sleeve pipe, and the external diameter of contractibility member diminishes gradually from the end to end of member, and the outer wall of contractibility member keeps in touch with the inwall of friction sleeve pipe;
The first stay guy, an end of the first stay guy is connected with the contractibility member, and nose end one side that the first stay guy is little from the friction sleeve bore is drawn;
The end that described the first stay guy is little from contractibility member external diameter passes the contractibility member, an end that passes the contractibility member at the first stay guy is provided with the drag-line protruding head that is greater than contractibility member tube chamber, by the drag-line protruding head, the first stay guy and contractibility member is linked together;
Be provided with the circumferential rib line on the inner tubal wall of described friction sleeve pipe, and be provided with suitable circumferential rib line on the outer wall of contractibility member.
2. a kind of continuous resistance-increasing deforming anchor cable according to claim 1, it is characterized in that: be provided with the second stay guy at the large nose end of described friction sleeve bore, the second stay guy is connected with nose end by the drag-line termination.
3. a kind of continuous resistance-increasing deforming anchor cable according to claim 2, it is characterized in that: described drag-line termination and nose end are threaded connection.
4. a kind of continuous resistance-increasing deforming anchor cable according to claim 1, it is characterized in that: described contractibility member is one section truncated cone-shaped or conical steel pipe, is provided with a breach stretched vertically on tube wall.
5. a kind of continuous resistance-increasing deforming anchor cable according to claim 2, characterized by further comprising nut and pallet, free end at the second stay guy is provided with threaded joints, pallet is fixed on the place, aperture of boring, the free end of the second stay guy stretches out pallet, and nut is connected on the threaded joints of the second stay guy.
6. a kind of continuous resistance-increasing deforming anchor cable according to claim 2, it is characterized in that: the main part of described the first stay guy and the second stay guy takes steel strand to make.
7. a kind of continuous resistance-increasing deforming anchor cable according to claim 1, characterized by further comprising nut and pallet, and the connecting rod coordinated with nut blocks up and is fixed on the nose end that the friction sleeve bore is large by sleeve end; Pallet is fixed on the place, aperture of boring, and the free end of connecting rod stretches out pallet, and nut is connected on the thread segment of connecting rod; Described sleeve end is stifled to be threaded connection with nose end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103688058A CN102434179B (en) | 2011-11-18 | 2011-11-18 | Deformation anchor cable capable of increasing resistance continuously |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103688058A CN102434179B (en) | 2011-11-18 | 2011-11-18 | Deformation anchor cable capable of increasing resistance continuously |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102434179A CN102434179A (en) | 2012-05-02 |
| CN102434179B true CN102434179B (en) | 2013-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103688058A Expired - Fee Related CN102434179B (en) | 2011-11-18 | 2011-11-18 | Deformation anchor cable capable of increasing resistance continuously |
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| CN (1) | CN102434179B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102839693B (en) * | 2012-09-02 | 2015-12-30 | 山东科技大学 | Increase resistive shape anchor pole/anchorage cable anchoring quality monitoring device and application process |
| CN109707425A (en) * | 2019-03-12 | 2019-05-03 | 中铁隆昌铁路器材有限公司 | The frictional pressure-relieving achor bar of the hollow slip casting of prestressing force and method for protecting support |
| CN113175341B (en) | 2021-06-10 | 2022-07-05 | 福州大学 | Construction method of deformed anchor cable capable of applying prestress |
| CN114542148B (en) * | 2022-04-24 | 2022-07-08 | 应急管理部国家自然灾害防治研究院 | Grouting support anchor cable equipment for impacting water diversion tunnel by flowing ice in cold and dry areas |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2053666U (en) * | 1989-06-23 | 1990-02-28 | 煤炭科学研究总院南京研究所 | Tube seam type extensible anchor bolt |
| CA2820010A1 (en) * | 2004-06-30 | 2005-12-30 | Dywidag Systems International, Canada, Ltd | Yieldable rock fastener system and method |
| CN1712670A (en) * | 2005-07-13 | 2005-12-28 | 吴德兴 | Slip casting roof bolt with anticorrosive casing pipe |
| AU2008235258A1 (en) * | 2007-04-05 | 2008-10-16 | Peter Andrew Gray | Extendable member |
| CN201924947U (en) * | 2010-11-17 | 2011-08-10 | 江苏省矿业工程集团有限公司建井工程处 | Extendable anchor rod |
| CN102094662B (en) * | 2011-03-15 | 2013-04-03 | 北京科技大学 | Friction sleeve type large deformation anchor rod |
| CN202360120U (en) * | 2011-11-18 | 2012-08-01 | 山东科技大学 | Continuous resistance-increasing deformation anchor rod and continuous resistance-increasing deformation anchor cable |
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2011
- 2011-11-18 CN CN2011103688058A patent/CN102434179B/en not_active Expired - Fee Related
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| CN102434179A (en) | 2012-05-02 |
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Granted publication date: 20131204 Termination date: 20181118 |
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