CN103758550B - A kind of liquid expanding allows presses the anti-High-geotemperature anchor pole of antidetonation - Google Patents
A kind of liquid expanding allows presses the anti-High-geotemperature anchor pole of antidetonation Download PDFInfo
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- CN103758550B CN103758550B CN201410005861.9A CN201410005861A CN103758550B CN 103758550 B CN103758550 B CN 103758550B CN 201410005861 A CN201410005861 A CN 201410005861A CN 103758550 B CN103758550 B CN 103758550B
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Abstract
The invention discloses a kind of liquid expanding allows the anti-High-geotemperature anchor pole of pressure antidetonation, this liquid expanding allow pressure antidetonation anti-High-geotemperature anchor pole comprise: the body of rod, pressure-bearing one way valve, oil-through hole, jacket casing, slippage block, anchoring oxidant layer, plasma resistance backstopping device, hydraulic fluid interface, drill hole wall, swollen body pipe, centralizer, bearing plate, globular model cushion block, nut.Present invention achieves the combination of pressure-relieving achor bar and friction rock bolt, have ultimate elongation amount large, anchored force is reliably powerful, applied widely, achieve flexibility and allow pressure, impact load can be resisted preferably, anti-seismic performance is excellent, effectively reduces the adverse effect of High-geotemperature to anchor pole; To the Second Lining Construction of underground construction and the noiseless and adverse effect of sash beam construction of ground slope project; Compatible deformation ability, good pressure, antidetonation, the anti-High-geotemperature performance of allowing are high, extend the cycle that anchor pole uses, reduce maintenance cost.
Description
Technical field
The invention belongs to geotechnical engineering anchoring support technical field, particularly relate to a kind of liquid expanding and allow pressure antidetonation anti-High-geotemperature anchor pole.
Background technology
In underground construction, mining engineering, foundation ditch and slope project that geotechnical engineering relates to, anchor pole is a kind of main support technology, and it has wide range of applications, and consolidation effect is good.But along with increasing of underground construction, the buried depth of underground construction is increasing, the geological conditions faced becomes increasingly complex, new problem continues to bring out, such as high-ground stress, High-geotemperature, soft rock large deformation, rock burst and high earthquake intensity etc., these new problem application to anchor pole propose new requirement.
Conventional anchor is existing defects when facing above problems, anchor rod ultimate tensile elongation is little, easily occur that anchor head lost efficacy, anchor pole such as to break at the destruction, high-ground stress can not be adapted to, the anchoring support requirement of underground construction under the conditions such as soft surrounding rock large deformation, also can not well be suitable for the creep larger side slope of distortion or sliding mass.Antagonism High-geotemperature, the research of anti-seismic anchor rod is domestic few especially.
Along with construction technology in geotechnical engineering, the development that deepens continuously of support idea, various dissimilar anchor pole is also emerging in large numbers of emerging in an endless stream.Mechanical anchor formula anchor pole, slip casting anchoring bolt and resin-bonded anchoring bolt can be divided into by anchorage style; Common bolt and prestressed anchor can be divided into by prestressing force mode; Bolt and end anchorage anchor pole can be divided into by anchoring section form; Twisted steel anchor rod and pipe-seam type anchor rod can be divided into by anchor structure.
Pressure-relieving achor bar is the important development direction of the novel anchor rod solving above problems.Its principle is the compatible deformation by allowing the elongation etc. of the distortion of pressure device or slippage and the body of rod realize anchor pole and country rock, reach and allow pressure object, thus anchoring support can be realized better under complex geological condition, but these pressure-relieving achor bars are difficult to have concurrently allow presses and anchoring strength, reach allow pressure while anchoring strength decrease, or allow pressure device be difficult to resist rock burst, the Impact Loads such as earthquake, or the pressure device that allows being arranged at anchor pole end occupies drift section, impact construction etc.Tubular friction tension anchoring-bolt disclosed in the patent No. 87207128, its resistance is relatively little, is difficult to the consolidation effect giving full play to anchor pole; The patent No. 201010254537.2 is disclosed is a kind ofly suitable for the mining compatible deformation energy-absorption anchor rod of heavily stressed large deformation Mining in Rock Mass, and its energy-absorbing section bends the body of rod and easily breaks under effect because stress concentrates under impact load; Retractable constant force yielding anchor bolt for dynamical pressure soft rock lane disclosed in the patent No. 201210049834.2, it makes pressure device excessive and is positioned at anchor pole end, affects Second Lining Construction and is unfavorable for the utilization in drift section space; Contiuum type pressure-relieving achor bar system disclosed in the patent No. 201210165982.0, its monolithic stability reliability is difficult to ensure, takies drift section space excessive.
Summary of the invention
The object of the embodiment of the present invention is that providing a kind of liquid expanding allow presses the anti-High-geotemperature anchor pole of antidetonation, the consolidation effect being intended to solve the anchor pole that existing pressure-relieving achor bar exists is not good, anchor pole is easily broken, affect Second Lining Construction and be unfavorable for the utilization in drift section space, the problem of stability and poor reliability.
The embodiment of the present invention realizes like this, a kind of liquid expanding allows the anti-High-geotemperature anchor pole of pressure antidetonation, this liquid expanding allow pressure antidetonation anti-High-geotemperature anchor pole comprise: the body of rod, pressure-bearing one way valve, oil-through hole, jacket casing, slippage block, anchoring oxidant layer, plasma resistance backstopping device, hydraulic fluid interface, drill hole wall, swollen body pipe, centralizer, bearing plate, globular model cushion block, nut;
The body of rod is arranged on liquid expanding and allows the centre position of pressure antidetonation anti-High-geotemperature anchor pole, slippage block is arranged on the top of the body of rod, jacket casing, slippage block and hydraulic fluid interface composition liquid expanding allow the hydraulic means of the anti-High-geotemperature anchor pole of pressure antidetonation, jacket casing is arranged on the outside of slippage block, the arranged outside anchoring oxidant layer of jacket casing, swollen body pipe is by being welded to connect jacket casing, pressure-bearing one way valve and oil-through hole are arranged on the junction of swollen body pipe and jacket casing, plasma resistance backstopping device is arranged on the outside of hydraulic means, hydraulic fluid interface is arranged on the inside of colloid pipe, drill hole wall is positioned at the outside of anchoring oxidant layer and swollen body pipe, centralizer is arranged on the body of rod by screw thread, centralizer is arranged on the rear end of colloid pipe, bearing plate, globular model cushion block is connected with the end of the body of rod by nut.
Further, the body of rod is solid cylinder, and adopt round steel processing or glass fiber reinforced plastic processing and manufacturing, body of rod length is 2m ~ 2.5m.
Further, the quantity of the body of rod being installed centralizer is not less than 1, and centralizer internal diameter is slightly larger than body of rod diameter, and both match.
Further, bearing plate is set to metal butterfly.
Further, globular model block adopts steel part or rubber.
Further, sleeve and slippage block adopt equal strength steel to make, and length sleeve is 0.5m.Slippage block and sleeve lining fit tightly, and sealing is good.
Further, oil-through hole is symmetrical arranged, and the quantity of oil-through hole is not less than 2.
Further, swollen body pipe adopts the processing and manufacturing of seamless thin wall concave cross section steel pipe, and swollen body bore is slightly larger than body of rod diameter, and external diameter is slightly less than hole wall diameter, and swollen body length of tube is 0.7m ~ 1m.
Liquid expanding provided by the invention allows presses the anti-High-geotemperature anchor pole of antidetonation, and achieve the combination of pressure-relieving achor bar and friction rock bolt, have both advantages concurrently, have ultimate elongation amount large, anchored force is reliably powerful, applied widely; Adopt liquid allow pressure, achieve flexibility and allow pressure, impact load can be resisted preferably, anti-seismic performance excellence; In boring, anchor pole does not enrich by subterminal part, good interchange of heat can be carried out and compared with hydraulic oil, country rock has larger specific heat capacity with anchor pole head end and the external world, to there being a regulating and controlling effect of well lowering the temperature in hole, the adverse effect of High-geotemperature to anchor pole can be effectively reduced; Deformation section is all positioned at bolthole, to the Second Lining Construction of underground construction and the noiseless and adverse effect of sash beam construction of ground slope project; Compatible deformation ability, good pressure, antidetonation, the anti-High-geotemperature performance of allowing are high, and greatly promote in common bolt life cycle, maintenance cost greatly reduces, and is worthy of popularization from long term economical.The present invention reach anchor pole allow pressure while reliable anchored force is provided, underground engineering wall rock surface peeling under High-geotemperature condition can be destroyed controlled by Shi Hanzhang, and the effect of the impact loads such as earthquake can be resisted, reach flexibility and allow pressure object, be applicable to the geotechnical engineering anchoring support in High-geotemperature, high earthquake intensity area.
Accompanying drawing explanation
Fig. 1 is that liquid expanding that the embodiment of the present invention provides allows the structural representation of the anti-High-geotemperature anchor pole of pressure antidetonation;
In figure: 1, the body of rod; 2, pressure-bearing one way valve; 3, oil-through hole; 4, jacket casing; 5, slippage block; 6, anchoring oxidant layer; 7, plasma resistance backstopping device; 8, hydraulic fluid interface; 9, drill hole wall; 10, swollen body pipe; 11, centralizer; 12, bearing plate; 13, globular model cushion block; 14, nut.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Below in conjunction with drawings and the specific embodiments, application principle of the present invention is further described.
As shown in Figure 1, the liquid expanding of the embodiment of the present invention allows pressure antidetonation anti-High-geotemperature anchor pole form primarily of the body of rod 1, pressure-bearing one way valve 2, oil-through hole 3, jacket casing 4, slippage block 5, anchoring oxidant layer 6, plasma resistance backstopping device 7, hydraulic fluid interface 8, drill hole wall 9, swollen body pipe 10, centralizer 11, bearing plate 12, globular model cushion block 13, nut 14;
The body of rod 1 is arranged on liquid expanding and allows the centre position of pressure antidetonation anti-High-geotemperature anchor pole, slippage block 5 is arranged on the top of the body of rod 1, jacket casing 4, slippage block 5 and hydraulic fluid interface 8 form liquid expanding allows the hydraulic means of pressure antidetonation anti-High-geotemperature anchor pole, jacket casing 4 is arranged on the outside of slippage block 5, the arranged outside anchoring oxidant layer 6 of jacket casing 4, swollen body pipe 10 is by being welded to connect jacket casing 4, pressure-bearing one way valve 2 and oil-through hole 3 are arranged on the junction of swollen body pipe 10 and jacket casing 4, plasma resistance backstopping device 7 is arranged on the outside of hydraulic means, hydraulic fluid interface 8 is arranged on the inside of colloid pipe 10, drill hole wall 9 is positioned at the outside of anchoring oxidant layer 6 and swollen body pipe 10, centralizer 11 is arranged on the body of rod 1 by screw thread, centralizer 11 is arranged on the rear end of colloid pipe 10, bearing plate 12, globular model cushion block 13 is connected with the end of the body of rod 1 by nut 14.
The present invention is described further for integrated structure, operating principle and using method:
Liquid expanding of the present invention allows the anti-High-geotemperature anchor pole of pressure antidetonation comprise the body of rod 1, hydraulic means, pressure-bearing one way valve 2, swollen body pipe 10, plasma resistance backstopping device 7, centralizer 11, globular model cushion block 13, nut 14 and bearing plate 12, hydraulic means is installed on liquid expanding and allows the top of pressure antidetonation anti-High-geotemperature anchor pole, and bearing plate 12 and globular model cushion block 13 are installed on liquid expanding by nut 14 and allow the end of the anti-High-geotemperature anchor pole of pressure antidetonation;
The body of rod 1 is solid cylinder, processed by round steel, also can be processed by glass fiber reinforced plastic, the top of the body of rod 1 connects with slippage block 5, the end of the body of rod 1 is by screw thread and bearing plate 12, globular model block 13, nut 14 is connected successively, the body of rod 1 is installed at least one centralizer 11, the body of rod 1 and centralizer 11 are by threaded engagement, also can weld, bearing plate 12 is metal butterfly bearing plate, globular model block 13 is steel part or rubber, bearing plate 12 is the sphere fitted with the contact surface of globular model block 13, the strong nuts such as nut 14 employing, also an overall accessory can be made with globular model slide block, be threaded with between the body of rod 1.
Hydraulic means is by jacket casing 4, slippage block 5, hydraulic fluid interface 8 is formed, sleeve 4 internal diameter is suitable with slippage block 5 diameter, material is identical, be steel, both fit tightly, slippage block 5 can move in sleeve 4 and the hydraulic oil of hydraulic fluid interface 8 can not infiltrate slippage block 5, hydraulic fluid interface 8 adopts high temperature resistance hydraulic oil and jacket casing 4 leaves oil-through hole 3 with the link of swollen body pipe 10, oil-through hole 3 should be symmetrical arranged and be more than or equal to two, and hydraulic means is outside with plasma resistance backstopping device 7, can weld also single screw and be connected.
The seamless thin wall concave cross section steel pipe processing and fabricating that swollen body pipe 10 is greater than anchor hole aperture by a kind of external diameter forms, swollen body pipe 10 is connected with hydraulic pressure jacket casing 4, welding manner can be adopted to connect, junction is provided with pressure-bearing one way valve 2, link leaves oil-through hole 3, and oil-through hole 3 quantity should match with jacket casing oil-through hole quantity.
Liquid expanding of the present invention allow pressure antidetonation anti-High-geotemperature rockbolt installation time, early strong Anchor Agent is loaded in boring deep, i.e. Steel fiber resin Anchor Agent, in outside successively by the body of rod 1, hydraulic means, plasma resistance backstopping device 7, swollen body pipe 10, centralizer 11 is assembled into entirety, the i.e. body of rod 1, again the body of rod 1 is put into boring, strong for morning Anchor Agent fully stirs by the hydraulic pressure jacket casing 4 of anchor bar body front end, extruding is also filled closely knit in the borehole, form early strong anchoring body, treat that early strong Anchor Agent knot is hard, after reaching desirable strength, can allow pressure antidetonation anti-High-geotemperature anchor pole end that bearing plate 12 is installed successively at liquid expanding, globular model cushion block 13, nut 14, carry out stretch-draw, apply certain prestressing force, work as High-geotemperature, earthquake has an impact to country rock, surrouding rock deformation also produces pulling force to the body of rod 1, the pressure of hydraulic oil 8 increases with the increase of body of rod pulling force, when reaching the rated pressure of pressure-bearing one way valve 2, pressure-bearing one way valve 2 is opened, the body of rod 1 pulls slippage block 5 to slide, hydraulic fluid interface 8 is sent to swollen body pipe 10 from jacket casing 4, anchor bar body extends, anchor pole allow pressure and with country rock compatible deformation, release temperature stress and opposing geological process is come with this, meanwhile, under the effect of high pressure liquid force feed, swollen body pipe 10 expands thus is adjacent to the irregular hole wall of boring completely, thus reinforces along frictional force, mechanical chain power and the pressure that swollen body pipe 10 total length produces rock mass, provides higher anchored force further.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. a liquid expanding allows and presses the anti-High-geotemperature anchor pole of antidetonation, it is characterized in that, this liquid expanding allows pressure antidetonation anti-High-geotemperature anchor pole comprise: the body of rod, pressure-bearing one way valve, oil-through hole, jacket casing, slippage block, anchoring oxidant layer, plasma resistance backstopping device, hydraulic fluid interface, drill hole wall, swollen body pipe, centralizer, bearing plate, globular model cushion block, nut;
The body of rod is arranged on liquid expanding and allows the centre position of pressure antidetonation anti-High-geotemperature anchor pole, slippage block is arranged on the top of the body of rod, jacket casing, slippage block and hydraulic fluid interface composition liquid expanding allow the hydraulic means of the anti-High-geotemperature anchor pole of pressure antidetonation, jacket casing is arranged on the outside of slippage block, the arranged outside anchoring oxidant layer of jacket casing, swollen body pipe is by being welded to connect jacket casing, pressure-bearing one way valve and oil-through hole are arranged on the junction of swollen body pipe and jacket casing, plasma resistance backstopping device is arranged on the outside of hydraulic means, hydraulic fluid interface is arranged on the inside of swollen body pipe, drill hole wall is positioned at the outside of anchoring oxidant layer and swollen body pipe, centralizer is arranged on the body of rod by screw thread, centralizer is arranged on the rear end of swollen body pipe, bearing plate, globular model cushion block is connected with the end of the body of rod by nut.
2. liquid expanding as claimed in claim 1 allows and presses the anti-High-geotemperature anchor pole of antidetonation, and it is characterized in that, the body of rod is solid cylinder, adopts round steel processing or glass fiber reinforced plastic processing and manufacturing.
3. liquid expanding as claimed in claim 1 allows and presses the anti-High-geotemperature anchor pole of antidetonation, and it is characterized in that, the quantity of the body of rod being installed centralizer is not less than 1.
4. liquid expanding as claimed in claim 1 allows and presses the anti-High-geotemperature anchor pole of antidetonation, and it is characterized in that, bearing plate is set to metal butterfly.
5. liquid expanding as claimed in claim 1 allows and presses the anti-High-geotemperature anchor pole of antidetonation, it is characterized in that, globular model cushion block adopts steel part or rubber.
6. liquid expanding as claimed in claim 1 allows and presses the anti-High-geotemperature anchor pole of antidetonation, it is characterized in that, jacket casing and slippage block adopt steel.
7. liquid expanding as claimed in claim 1 allows and presses the anti-High-geotemperature anchor pole of antidetonation, and it is characterized in that, oil-through hole is symmetrical arranged, and the quantity of oil-through hole is not less than two.
8. liquid expanding as claimed in claim 1 allows and presses the anti-High-geotemperature anchor pole of antidetonation, it is characterized in that, swollen body pipe adopts the processing and manufacturing of seamless thin wall concave cross section steel pipe.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410005861.9A CN103758550B (en) | 2014-01-06 | 2014-01-06 | A kind of liquid expanding allows presses the anti-High-geotemperature anchor pole of antidetonation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410005861.9A CN103758550B (en) | 2014-01-06 | 2014-01-06 | A kind of liquid expanding allows presses the anti-High-geotemperature anchor pole of antidetonation |
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| CN103758550A CN103758550A (en) | 2014-04-30 |
| CN103758550B true CN103758550B (en) | 2015-12-09 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104653210B (en) * | 2015-02-04 | 2017-04-12 | 昆山市金侨市政工程有限公司 | Composite anchor bolt structure |
| CN105840223B (en) * | 2016-05-18 | 2018-07-20 | 华侨大学 | A kind of anti-rock burst anchor pole of large deformation selfreparing |
| CN110030025B (en) * | 2019-05-17 | 2024-01-30 | 东北大学 | Self-expansion type pipe joint anchor rod for surrounding rock large deformation and preparation and use methods thereof |
| CN110761820B (en) * | 2019-11-07 | 2020-12-08 | 长江水利委员会长江科学院 | Yielding anchor rod design method suitable for large deformation of weak surrounding rock |
| CN111075487B (en) * | 2019-12-31 | 2024-05-24 | 西南石油大学 | Anchor rod with function of measuring surrounding rock strain and temperature coupling |
| CN111608709B (en) * | 2020-06-04 | 2022-04-22 | 中铁隆昌铁路器材有限公司 | Yielding anchor rod suitable for soft rock large-deformation underground space and supporting method |
| CN114351699B (en) * | 2021-11-15 | 2023-02-07 | 同济大学 | Graded yielding self-resetting anti-seismic anchor rod and installation method |
| CN114635732B (en) * | 2022-05-23 | 2022-08-02 | 中铁九局集团第六工程有限公司 | Expansion type anti-seismic support anchor rod and construction method thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87207128U (en) * | 1987-05-29 | 1988-03-09 | 中国矿业学院 | Tubular friction tension anchoring-bolt |
| DE29815681U1 (en) * | 1998-08-08 | 1998-12-10 | Schran Bergbau Baumaschinen Bo | Mountain anchor system |
| CN101929347A (en) * | 2010-08-17 | 2010-12-29 | 中南大学 | Coordinated-deformation energy-absorption anchor rod suitable for mining high-stress large-deformation rock mass |
| CN203347813U (en) * | 2013-07-17 | 2013-12-18 | 中国科学院武汉岩土力学研究所 | Expansion shell type constant-resistance pre-stressed bolt |
| CN203655326U (en) * | 2014-01-06 | 2014-06-18 | 成都理工大学 | Liquid-expansion yielding shock and high ground temperature resistant anchor rod |
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