CN109487786A - A kind of novel large deformation anchor cable component - Google Patents
A kind of novel large deformation anchor cable component Download PDFInfo
- Publication number
- CN109487786A CN109487786A CN201811451164.0A CN201811451164A CN109487786A CN 109487786 A CN109487786 A CN 109487786A CN 201811451164 A CN201811451164 A CN 201811451164A CN 109487786 A CN109487786 A CN 109487786A
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- Prior art keywords
- anchor cable
- large deformation
- outer sleeve
- novel large
- cable component
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 32
- 239000010959 steel Substances 0.000 claims abstract description 32
- 230000001681 protective effect Effects 0.000 claims description 25
- 239000011435 rock Substances 0.000 abstract description 41
- 239000002689 soil Substances 0.000 abstract description 38
- 238000000034 method Methods 0.000 abstract description 8
- 238000011160 research Methods 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 5
- 238000006073 displacement reaction Methods 0.000 abstract description 3
- 230000007246 mechanism Effects 0.000 abstract description 3
- 230000013011 mating Effects 0.000 abstract description 2
- 230000001550 time effect Effects 0.000 abstract description 2
- 238000005457 optimization Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 7
- 230000008093 supporting effect Effects 0.000 description 6
- 229910000975 Carbon steel Inorganic materials 0.000 description 3
- 239000010962 carbon steel Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/74—Means for anchoring structural elements or bulkheads
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
- E21D21/0026—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by constructional features of the bolts
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
- E21D21/0026—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by constructional features of the bolts
- E21D21/0033—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by constructional features of the bolts having a jacket or outer tube
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
- E21D21/0026—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by constructional features of the bolts
- E21D21/006—Anchoring-bolts made of cables or wires
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2600/00—Miscellaneous
- E02D2600/30—Miscellaneous comprising anchoring details
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The present invention proposes that a kind of novel large deformation anchor cable component, including outer sleeve, outer sleeve are equipped with fastener, and fastener compresses the inner sleeve in outer sleeve, and the inner wall of inner sleeve has gradient, the slide mass of fitting inner wall is equipped in inner sleeve, and slide mass is connect with steel strand wires.The present invention be it is a kind of with large deformation, adjustable pulling force, energy-absorbing prestress anchorage cable.It can not only reinforce Rock And Soil, but also can mating corresponding mechanics sensor and displacement sensor the intracorporal deformation force of ground and deformation process are monitored, then both sides science data are mapped, have very important meaning to the deformation mechanism and rule of research Rock And Soil.In addition this anchor cable can be according to different project situation and time effect, the stretching resistance of artificial adjustment anchor cable, make it in the case where being less than anchor cable itself maximum Fracture Force, higher state of tension is kept simultaneously, this is of great significance the utilization anchor cable for guaranteeing engineering safety and optimization.
Description
Technical field
The present invention relates to Rock And Soil supportings, particularly relate to a kind of novel large deformation anchor cable component.
Background technique
From the mankind are in order to survive and be transformed to the Nature, begin to rock and the soil body " coming into contacts with " (hereafter by rock
Stone and the soil body are known as Rock And Soil), rear bring disaster is deformed by Rock And Soil in this process and is occurred often, it is especially existing
Generation society, the production activity of the mankind increasingly increase, so that disaster relevant to Rock And Soil is more frequently and violent.For example, large-scale
Landslide, mud-rock flow, chamber collapse, the ultimate deformation in tunnel (rock burst, top plate collapse, pucking), earthquake etc..
In these struggles, the mankind have paid heavy cost, but have also summed up a series of reply Rock And Soil calamities simultaneously
Harmful method should protect it means using different especially in accordance with mechanism and rule that disaster occurs, to guarantee
The safety of personnel and property.By finding to a series of stability study document in terms of Rock And Soils, such research is divided into three
Aspect, first is to study merely to Rock And Soil in the disturbance by various aspects influence factor its stability, main
The stable state to Rock And Soil itself, deformation process and final failure mode is laid particular emphasis on to be estimated and described；Second
It is to analyze the stability of Rock And Soil, evaluates each fatalness region, with several supporting means respectively to fatalness region
Reinforcement protection is carried out, then the Rock And Soil after reinforcing is assessed again；Third is for Rock And Soil Nonlinear Large Deformation problem
The research of aspect, in order to solve this problem, domestic and international researcher respectively to intensity anchor pole (rope), structural anchor bar (rope) with
And new material anchor pole (rope) etc. is studied.It is found by summarizing, intensity anchor pole (rope) is strong although can achieve required tension
Degree, but elongation percentage is lower, is not able to satisfy large deformation requirement；New material anchor pole (rope) is a kind of research tendency, but the R&D cycle
It is long, research and develop it is at high cost, restrict its development always using immature etc.；Structural anchor bar (rope) is by plastic material and intensity material
After material is coupled, it is made to be all satisfied the center of gravity of engine request and current research on elongation percentage and intensity.
Since Rock And Soil is heterogeneous, Discontinuous transmission, intensity and deformation are affected by external condition, are made in load
Nonlinear Large Deformation problem easily occurs under.The form of expression that large deformation problem generates is that Rock And Soil releases extra energy
It releases, then makes reaching new mechanical balance in it, but this process can cause mankind's activity huge disaster.In order to
Reducing disaster to the greatest extent influences, and effectively controls and monitors the generation of disaster, needs using with higher-strength and big change
The anchor cable of shape mechanical characteristic carries out reinforcement protection to Rock And Soil.Numerous researchers have developed various shape, structure, material thus
The anchor pole (rope) of material is made that great contribution to Rock And Soil disaster problem is solved.
It is found in the exploration of many field engineerings, especially slope project, no matter rock side slope or soil-slope, they
All there is a wide range of, instantaneous, high-energy when coming down, and the elongation percentage of general supporting anchorage cable is 5%-8%, duration
Stretching resistance is insufficient, therefore causes energy-absorbing effect very poor.So that such supporting anchorage cable can not be coped with beyond its own deflection
Deformation in addition, at the same when can not effectively absorb slope instability abrupt release energy, then bring it about fracture failure,
This is very unfavorable to the safety in engineering, needs to cause enough attentions.
Summary of the invention
The present invention proposes a kind of novel large deformation anchor cable component, solves prior art anchor cable and continues that tension is hypodynamic to ask
Topic.The application is innovated on anchor cable structure, makes it on the basis of losing some strength, more general anchor cable has larger
Elongation percentage, allow to largely endure large deformation caused by Rock And Soil, be equipped with again at the same time mechanics sensing
Device and displacement sensor monitor Rock And Soil for a long time, not only achieve the purpose that control Rock And Soil deformation, and to taking off
Show that the deformation rule of its own is also particularly significant.
The technical scheme of the present invention is realized as follows: a kind of novel large deformation anchor cable component, including outer sleeve, it is described
Outer sleeve is equipped with fastener, and fastener compresses the inner sleeve in outer sleeve, and the inner wall of inner sleeve has gradient, sets in inner sleeve
There is the slide mass of fitting inner wall, slide mass is connect with steel strand wires.
The inner wall of the outer sleeve has 3-5 ° of gradient, and fastener is located at the thick end of outer sleeve.
The fastener is screw.
The outer sleeve is connect with outer protective plate, and outer protective plate is equipped with the reserved opening I for wearing steel strand wires.
The outer sleeve is by protecting screw thread to connect with outer protective plate.
Draft is 3-5 ° in the inner sleeve.
The inner sleeve is connect with interior protective plate, and interior protective plate is equipped with the reserved opening II for wearing steel strand wires.
The inner sleeve is by protecting screw thread to connect with interior protective plate.
The slide mass is equipped with the reserved opening III for wearing steel strand wires, and locking plate is equipped in reserved opening III, and locking plate locks
Steel strand wires.
The section of the slide mass is V-arrangement.
The present invention be it is a kind of with large deformation, adjustable pulling force, energy-absorbing prestress anchorage cable.It not only can to Rock And Soil into
Row is reinforced, but also can mating corresponding mechanics sensor and displacement sensor to the intracorporal deformation force of ground and deformation process into
Both sides science data, are then mapped by row monitoring, and the deformation mechanism and rule to research Rock And Soil have extremely important
Meaning.In addition this anchor cable can be according to different project situation and time effect, the stretching resistance of artificial adjustment anchor cable,
Make it in the case where being less than anchor cable itself maximum Fracture Force, while keeping higher state of tension, this is to guarantee engineering safety
And what is optimized is of great significance using anchor cable.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is schematic structural view of the invention.
Fig. 2 is external structure schematic diagram of the present invention.
Fig. 3 is outer sleeve side view of the present invention.
Fig. 4 is the outer protective plate side view of the present invention.
Fig. 5 is schematic diagram of internal structure of the present invention.
Fig. 6 is present invention sliding body-side view.
Fig. 7 is inner sleeve side view of the present invention.
Fig. 8 is protective plate side view in the present invention.
In figure: 1- outer sleeve, 2- fastener, the outer protective plate of 3-, 4- protect screw thread, 5- reserved opening I, 6- inner sleeve, 7- steel
Twisted wire, 8- slide mass, protective plate in 9-, 10- reserved opening II, 11- locking plate, 12- reserved opening III.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under that premise of not paying creative labor
Embodiment shall fall within the protection scope of the present invention.
As shown in Fig. 1 to Fig. 8 a kind of novel large deformation anchor cable component, including outer sleeve 1, the outer sleeve 1 are equipped with tight
Firmware 2, fastener 2 compress the inner sleeve 6 in outer sleeve 1, and the inner wall of inner sleeve 6 has gradient, is equipped in fitting in inner sleeve 6
The slide mass 8 of wall, slide mass 8 are connect with steel strand wires 7.
The inner wall of the outer sleeve 1 has 3-5 ° of gradient, and fastener 2 is located at the thick end of outer sleeve 1.
The fastener 2 is screw.
The outer sleeve 1 is connect with outer protective plate 3, and outer protective plate 3 is equipped with the reserved opening I5 for wearing steel strand wires 7.
The outer sleeve 1 is by protecting screw thread 4 to connect with outer protective plate 3.
Draft is 3-5 ° in the inner sleeve 6.
The inner sleeve 6 is connect with interior protective plate 9, and interior protective plate 9 is equipped with the reserved opening II10 for wearing steel strand wires 7.
The inner sleeve 6 is by protecting screw thread 4 to connect with interior protective plate 9.
The slide mass 8 is equipped with the reserved opening III12 for wearing steel strand wires 7, is equipped with locking plate 11 in reserved opening III12,
Locking plate 11 locks steel strand wires 7.
The section of the slide mass 8 is V-arrangement.
Composition and basic principle of the invention is described in detail below.Novel large deformation anchor cable component be broadly divided into three it is important
Part, respectively fastener compress outer sleeve, embedded constant-resistance Sliding Structures, high-strength prestress anchor cable.They are combined one
It rises and makes it possible that anchor cable controls Rock And Soil large deformation, this is of great significance for the practical supporting of field engineering.
The cardinal principle of novel large deformation anchor cable component is novel large deformation anchor cable to be mounted on engineering rock mass, first
One section of high-strength prestress steel strand wires for wherein passing through Rock-soil Mass Structure face are poured with rock mass, them is made to combine closely
It is formed together anchoring section；Then another section of steel strand wires and the component of generation large deformation not pour, and form free segment；Finally to whole
Body anchor cable carries out tensioning preload, couples it completely with Rock And Soil and is integrated, forms a kind of mechanical balance state.When Rock And Soil exists
When being disturbed by external factor (rainfall, load, explosion, excavation, earthquake etc.), its own can occur slowly to deform, at this time can
Certain drag load is generated to anchor cable.The drag load provided by the Rock And Soil is less than the minimum starting intensity of anchorage cable design
When, certain flexible deformation only occurs for anchor cable, and Rock And Soil is made to be in stable state；The drag load provided by the Rock And Soil is big
When the minimum starting intensity of anchorage cable design, anchor cable deformation element is started to work, and constant-resistance Sliding Structures embedded first can be tight
Gu sliding in clamp sleeve, deformation caused by a portion Rock And Soil is offset, and consumes certain deformation energy.Then when
After the deformation of member reaches the limit values, if not fully controlling the deformation of Rock And Soil still, embedded constant-resistance sliding is tied at this time
Structure can start to work, at this time slide mass can in throwout sleeve frictional movement, while again offset Rock And Soil in deformation and disappear
Consume in it excess energy, be finally reached the purpose of effectively control Rock And Soil deformation.
The composition of novel large deformation anchor cable component has: fastener compresses outer sleeve and is made of high-intensitive carbon steel, and inner wall is oblique
Degree is 3-5 °, and wall thickness is gradually reduced from left to right, is the main structure for installing fastener and fixed embedded constant-resistance Sliding Structures；
Adjustable pressure fastener is that (totally 4 row 12) is made in stainless steel screw, and mainly it is sliding to act on embedded constant-resistance for adjusting screw
The pressure in structure is moved, the frictional force size between them is then changed, screw is mounted on the biggish thick end of outer sleeve intensity；Outside
Protective plate is made of high-intensitive carbon steel, mainly prevents the entrance of the external soil body and embedded constant-resistance Sliding Structures is stopped to be drawn
Outer sleeve out；Protect screw thread mainly by protective plate and sleeve close installation；Steel strand wires reserved opening I, mainly by steel strand wires from
Wherein reserve；Embedded constant-resistance sliding inner sleeve is made of high-intensitive carbon steel, and interior draft is 3-5 °, and wall thickness is from left to right
It gradually increases, mainly mounting slip body and steel strand wires, while providing slipping space and frictional force for it；High strength steel strand,
Main pulling force supporting body is to contact the medium to interact between large deformation device and Rock And Soil；Slide mass is No. 45 steels
At being tapered cylinder, also cut into cone space in cylinder, frictional force is provided when predominantly anchor cable integrally deforms, together
When can increase slide mass in any case, increase frictional force integrally；Protective plate in embedded constant-resistance Sliding Structures, mainly prevents
Slide mass is pulled out out of sliding inner sleeve；Steel strand wires reserved opening II, mainly by steel strand wires from wherein reserving；Taper locking plate, it is main
Slide mass and steel strand wires lock are integrated, and make that it is equally loaded；Steel strand wires are mainly passed through and are slided by steel strand wires reserved opening III
Body is moved, and in locking plate is mounted on.
The installation and application method of novel large deformation anchor cable component of the present invention will be described in detail below:
1, steel strand wires are passed through into slide mass first, and they is locked with taper locking plate and is integrated, then place into embedded constant-resistance
Inner sleeve is slid, finally sliding inner sleeve is tightened with interior protective plate, at this moment embedded constant-resistance Sliding Structures are completed.
2, embedded constant-resistance Sliding Structures installation fastener is compressed in outer sleeve, is then tightened with outer protective plate,
Finally screw is mounted on outer sleeve, and suitably adjusts pressure, at this moment novel large deformation anchor cable is completed.
3, the aperture in Rock And Soil, general aperture depth will be more than bed plane, then novel large deformation anchor cable front end
Steel strand wires are put into hole, are finally poured steel strand wires front end with concrete, while reserving free segment, and to novel large deformation anchor cable
Tensioning is carried out, certain prestressing force (generally 200kN) is made it have.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of novel large deformation anchor cable component, including outer sleeve (1), it is characterised in that: the outer sleeve (1) is equipped with tight
Firmware (2), fastener (2) compress the inner sleeve (6) in outer sleeve (1), and the inner wall of inner sleeve (6) has gradient, inner sleeve (6)
The interior slide mass (8) for being equipped with fitting inner wall, slide mass (8) are connect with steel strand wires (7).
2. novel large deformation anchor cable component according to claim 1, it is characterised in that: the inner wall of the outer sleeve (1)
With 3-5 ° of gradient, fastener (2) is located at the thick end of outer sleeve (1).
3. novel large deformation anchor cable component according to claim 1, it is characterised in that: the fastener (2) is screw.
4. novel large deformation anchor cable component according to claim 1, it is characterised in that: the outer sleeve (1) is prevented with outer
Backplate (3) connection, outer protective plate (3) are equipped with the reserved opening I(5 for wearing steel strand wires (7)).
5. novel large deformation anchor cable component according to claim 4, it is characterised in that: the outer sleeve (1) passes through anti-
Shield screw thread (4) is connect with outer protective plate (3).
6. novel large deformation anchor cable component according to claim 1, it is characterised in that: described inner sleeve (6) inner wall is oblique
Degree is 3-5 °.
7. novel large deformation anchor cable component according to claim 1, it is characterised in that: the inner sleeve (6) is prevented with interior
Backplate (9) connection, interior protective plate (9) are equipped with the reserved opening II(10 for wearing steel strand wires (7)).
8. novel large deformation anchor cable component according to claim 7, it is characterised in that: the inner sleeve (6) passes through anti-
Shield screw thread (4) is connect with interior protective plate (9).
9. novel large deformation anchor cable component according to claim 1, it is characterised in that: the slide mass (8) is equipped with
Wear the reserved opening III(12 of steel strand wires (7)), reserved opening III(12) it is interior equipped with locking plate (11), locking plate (11) locks steel strand wires
(7).
10. novel large deformation anchor cable component according to claim 1, it is characterised in that: the section of the slide mass (8)
For V-arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811451164.0A CN109487786A (en) | 2018-11-30 | 2018-11-30 | A kind of novel large deformation anchor cable component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811451164.0A CN109487786A (en) | 2018-11-30 | 2018-11-30 | A kind of novel large deformation anchor cable component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109487786A true CN109487786A (en) | 2019-03-19 |
Family
ID=65698140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811451164.0A Pending CN109487786A (en) | 2018-11-30 | 2018-11-30 | A kind of novel large deformation anchor cable component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109487786A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112281833A (en) * | 2020-11-20 | 2021-01-29 | 南京工程学院 | Anchor rod stress meter structure with shear resistance and installation method thereof |
| WO2021083008A1 (en) * | 2019-10-29 | 2021-05-06 | 清华大学 | Flexible landslide monitoring device and method thereof |
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| KR20100118269A (en) * | 2009-04-28 | 2010-11-05 | (주)현이앤씨 | Plural support anchor of extension wedged type by expansion of spring |
| CN102174812A (en) * | 2011-03-08 | 2011-09-07 | 中国科学院武汉岩土力学研究所 | Active self-adaptative constant-resistance lengthener for prestress anchor cable |
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| CN202866845U (en) * | 2012-09-02 | 2013-04-10 | 山东科技大学 | Deformation resisting anchor rope/anchor rod capable of detecting anchoring quality timely |
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| CN104265339A (en) * | 2014-09-19 | 2015-01-07 | 辽宁工程技术大学 | Extrusion and friction type energy absorption anchor rod |
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2018
- 2018-11-30 CN CN201811451164.0A patent/CN109487786A/en active Pending
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021083008A1 (en) * | 2019-10-29 | 2021-05-06 | 清华大学 | Flexible landslide monitoring device and method thereof |
| CN112281833A (en) * | 2020-11-20 | 2021-01-29 | 南京工程学院 | Anchor rod stress meter structure with shear resistance and installation method thereof |
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