CN108343457A - A kind of anchor pole being suitable for surrouding rock deformation - Google Patents
A kind of anchor pole being suitable for surrouding rock deformation Download PDFInfo
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- CN108343457A CN108343457A CN201810134464.XA CN201810134464A CN108343457A CN 108343457 A CN108343457 A CN 108343457A CN 201810134464 A CN201810134464 A CN 201810134464A CN 108343457 A CN108343457 A CN 108343457A
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- Prior art keywords
- anchor
- rod
- anchor pole
- sleeve
- pallet
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- 239000011435 rock Substances 0.000 title claims abstract description 79
- 238000003780 insertion Methods 0.000 claims abstract description 7
- 230000037431 insertion Effects 0.000 claims abstract description 7
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 230000001186 cumulative effect Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 4
- 238000006073 displacement reaction Methods 0.000 abstract description 12
- 230000006641 stabilisation Effects 0.000 abstract description 3
- 238000011105 stabilization Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 5
- 238000004873 anchoring Methods 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008093 supporting effect Effects 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 102000003960 Ligases Human genes 0.000 description 1
- 108090000364 Ligases Proteins 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Classifications
-
- 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
- E21D21/008—Anchoring or tensioning means
-
- 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
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- 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)
- Piles And Underground Anchors (AREA)
Abstract
The present invention provides a kind of anchor pole being suitable for surrouding rock deformation, including the body of rod and pallet, and the body of rod includes the extended segment for connecting anchor tail;The extended segment is with anchor tail sleeve equipped with the extension apparatus that can be moved relative to the body of rod, and the extension apparatus includes sleeve and spring, and the sleeve includes the movable end that can be used to relatively move with the body of rod, and spring is limited between the anchor tail and sleeve movable end;The pallet is mounted at the sleeve, and pallet is pressed on the palisades of anchor pole insertion in anchor rod anchored finish.Beneficial effects of the present invention are embodied in, and by the setting of extension apparatus, are realized when certain deformation occurs for country rock, the length of anchor pole is extended, and the deformation energy in country rock is made to be released, after anchor pole extends, the working resistance of anchor pole can be increased, maintain the stabilization of country rock again;Sleeve movable end is equipped with extended segment spring, realizes that relative displacement occurs therewith with the body of rod for extension apparatus to which suitable for surrounding rock deforms when country rock deforms.
Description
Technical field
The present invention relates to the protective equipment technologies of civil engineering, and in particular to a kind of anchor pole being suitable for surrouding rock deformation, it can
Applied to support engineerings such as tunnel, side slopes.
Background technology
Anchorage technology in geotechnical engineering is reinforced to rock mass using anchor pole or anchor cable, it fully plays Rock And Soil
The stabilizing power of itself is that a kind of to disturb small, speed of application to protolith fast, safe and reliable and be cost-effective reinforcement technique.
Anchor pole can actively reinforce Rock And Soil, effectively control its deformation, prevent the fall damage of Rock And Soil, bolt support technology it is many excellent
More property makes bolt support technology have become the main support pattern in geotechnical engineering field.
However, as deep tunnel or deep laneway surrounding rock potential deformation can be very big, under country rock condition of high ground stress, usually table
The characteristics of revealing " large deformation " is embodied in soft rock large deformation, rock burst large deformation, impact large deformation, Gas Outburst large deformation.
And anchor rod ultimate tensile elongation in the prior art is small, when larger deformation occurs for underground engineering wall rock, anchor pole tends not to
It is applicable in the large deformation of country rock and the destructions such as anchor head fails, anchor pole is broken occurs, and then cause the accidents such as landslide, roof fall, or even make
At the forfeiture of underground engineering function.Anchor pole itself inflexibility, with country rock frictional force it is small etc. due to, cannot reach ideal
Anchoring effect.When surrouding rock deformation gradually increases, due to common bolt extensional rigidity is big, shear resistance is poor, cannot provide
Enough flexible deformations eventually lead to the branch such as anchor pole the problems such as generating anchor pole and country rock pulls, anchor pole is pulled off, tray failure
Equipment failure is protected, unpredictable damage is brought to engineering, serious accident perhaps can be caused when serious.
Since the elongation percentage of anchor pole reinforcing bar itself is low, small deformation occurs under limit stress and is just possible to be pulled off,
And anchor pole is once pulled off, then entire Bolt System will fail.Therefore, to avoid the generation of above-mentioned geological disaster, such as
What provide one kind can when country rock deforms, can in a certain range suitable for surrounding rock deformation anchor pole, so that it is played good
Supporting effect is the important technological problems for needing to solve.
Invention content
For problems of the prior art, the technical problem to be solved in the invention is to provide one kind and is suitable for enclosing
The anchor pole of rock deformation, can be improved the ability of anchor pole suitable for surrounding rock deformation, to provide effective suspension roof support.
The technical scheme is that providing a kind of anchor pole being suitable for surrouding rock deformation, including the body of rod and pallet, the bar
Body includes the extended segment for connecting anchor tail;It is arranged with the extension apparatus that can be moved axially with respect to the body of rod outside the extended segment and anchor tail,
The extension apparatus includes sleeve and spring, and the sleeve includes the movable end that can be used to relatively move with the body of rod, spring limitation
Between the anchor tail and sleeve movable end;The pallet is mounted at the sleeve, and pallet is used for anchor rod anchored
Press the palisades of anchor pole insertion when finishing.
Preferred embodiment, the sleeve movable end are the hollow cylinder structure of a trepanning, the hole internal diameter and shank diameter phase
Deng the spring at front end is close to movable end tail portion.
Preferred embodiment, the spring inside diameter are more than the shank diameter, the spring capacity and body of rod bearing capacity
Matching, and device of spring stiffness coefficient is customized according to body of rod stress.
Preferred embodiment, the anchor tail, sleeve, movable end and pallet bearing capacity and body of rod bearing capacity match.
Preferred embodiment, body of rod extended segment periphery are equipped with one group of protrusion structure.
The bearing capacity of preferred embodiment, the protrusion structure is cumulative to anchor tail direction along the body of rod extended segment.
Preferred embodiment, the protrusion structure are screw thread.
Preferred embodiment, the protrusion structure are the cyclic annular column structure along the body of rod periphery.
Preferred embodiment, the anchor tail are cylindrical structure, and the cylindrical structure diameter is more than the sleeve activity stomidium
Internal diameter.
Preferred embodiment, the sleeve other end are equipped with capping.
Preferred embodiment, the sleeve include regulating device, to adjust anchor rod anchored rear distance of the pallet between palisades.
Preferred embodiment, the tray bottom are equipped with the through-hole being adapted to the sleeve outer diameter;The regulating device includes spiral shell
Mother, the sleeve are equipped with the screw thread being adapted to the nut, and in when screwing end state, pallet is pressed on described the nut
The palisades that anchor pole is inserted into.
Beneficial effects of the present invention are embodied in, and provide a kind of anchor pole being suitable for surrouding rock deformation, and it is suitable can to effectively improve anchor pole
The ability for answering surrouding rock deformation, to provide effective suspension roof support.By the setting of extension apparatus, realize when country rock occurs centainly
When deformation, the length of anchor pole is extended, and the deformation energy in country rock is made to be released, and after anchor pole extends, can increase anchor pole
Working resistance, again maintain country rock stabilization;The sleeve movable end is equipped with extended segment spring, realizes country rock hair
Relative displacement occurs therewith with the body of rod for extension apparatus to which suitable for surrounding rock deforms when the shape that changes, and is not damaging body of rod bearing capacity
The structural support of the further supporting of anchor pole is provided simultaneously;The setting of sleeve capping, can effectively prevent moisture and sundries to enter sleeve
It is internal;The setting of sleeve regulating device can be conducive to adjust anchor rod anchored rear distance of the pallet between palisades.
Description of the drawings:
Fig. 1 is a kind of anchor structure schematic diagram being suitable for surrouding rock deformation of the embodiment of the present invention;
Fig. 2 is extension apparatus structural schematic diagram described in the embodiment of the present invention.
Reference sign
1. the body of rod, 10. extended segments, 11. anchor tails, 2. extension apparatus, 20. sleeves, 21. springs, 201. movable ends, 202. envelopes
Lid, 203. movable end tail portions, 3. pallets, 4. nuts.
Specific implementation mode
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 describes, 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, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
It please refers to Fig.1 shown in -2, specific embodiment provided by the invention is as follows:
A kind of anchor pole being suitable for surrouding rock deformation of the present embodiment, including the body of rod 1 and pallet 3, the body of rod 1 include connection
The extended segment 10 of anchor tail 11;Being set with outside the extended segment and anchor tail can be relative to the extension apparatus 2 that the body of rod moves, the extension dress
It includes sleeve 20 and spring 21 to set 2, and the sleeve 20 includes the movable end 201 that can be used to relatively move with the body of rod, and spring 21 limits
It is formed between the anchor tail 11 and sleeve movable end 201;The pallet 3 is mounted at the sleeve 20, and pallet is in anchor
Bar anchoring is pressed on the palisades of anchor pole insertion when finishing.In the prior art, the elongation percentage for being typically due to rigid anchor pole itself is low,
Small deformation occurs under limit stress to be just possible to be pulled off, and anchor pole is once pulled off, then entire Bolt System will
It can fail.Therefore, using the technical solution that suitable for surrounding rock deforms by extending rock-bolt length in the present embodiment, and with
In surrouding rock deformation progression, ensure that anchor pole provides gradually increased working resistance.Anchor pole described in the present embodiment is being anchored
When, anchor rod anchored section is anchored in massif or rock stratum, and extension apparatus is set on body of rod extended segment, and pallet is anchor rod anchored complete
The palisades of anchor pole insertion are pressed on when complete.When anchoring finishes, movable end tail portion 203 is located at 21 front position of spring.Stablizing shape
Under state, extension apparatus being set on the body of rod tightly, sleeve movable end is in relative static conditions with the body of rod;When country rock becomes
The deformation energy of shape, initial stage is larger, if the deformation energy of country rock is more than the range that anchor pole can bear, movable end will be along anchor tail direction
(arrow direction is the movable end moving direction, i.e. movement of the extension apparatus relative to the body of rod to mobile compressed spring in Fig. 1
Direction), it shows as generating relative displacement with the body of rod;At this point, spring is in compressive state, there is certain deformation energy, increase
Anchor pole working resistance, when surrouding rock deformation active force reaches new equalization point with anchor pole working resistance, the deformation energy of country rock obtains
Release, deformation tend to terminate, and movable end no longer generates displacement with the body of rod and stablizes again, extension apparatus being set in tightly again
On the body of rod.When turning again to stable state, spring is in compressive state, has certain deformation energy, increases anchor pole work resistance
Power is realized as in surrouding rock deformation progression, anchor pole provides gradually increased working resistance.Using the above scheme, work as country rock
When certain deformation occurs, due to the setting of extension apparatus, rock-bolt length is extended, and the deformation energy in country rock is made to be released,
After anchor pole extends, it is maintained to working resistance, maintains the stabilization of country rock again.
Preferred embodiment scheme, the sleeve movable end 201 are the hollow cylinder structure of a trepanning, the hole internal diameter and bar
Body diameter is equal, and movable end tail portion 203 is close in 21 front end of the spring.For the benefit of extension apparatus is set in the body of rod, this reality
The hollow cylinder structure that movable end is set as to a trepanning in example is applied, the hole internal diameter is equal with shank diameter, is conducive to movable end
Inner headed face is tightly attached to body of rod periphery.
Preferred embodiment scheme, the spring inside diameter are more than the shank diameter, and the spring capacity is held with the body of rod
Loading capability matches.When country rock deforms, if the deformation energy of country rock is more than the range that anchor pole can bear, movable end will be along anchor tail
Compressed spring is moved in direction, shows as generating relative displacement with the body of rod;At this point, spring is in compressive state, there is certain shape
Become energy, increases anchor pole working resistance, when surrouding rock deformation active force reaches new equalization point with anchor pole working resistance, country rock
Deformation energy is released, and deformation tends to terminate, and movable end no longer generates displacement and return to stable state with the body of rod.It is long-term in country rock
In deformation process, movable end is by continuous compressed spring, and therefore, the bearing capacity of spring should meet certain requirement, the present embodiment
Middle design spring capacity matches with body of rod bearing capacity, further, can customize spring stiffness system according to body of rod stress
Number.
Preferred embodiment scheme, the anchor tail, sleeve, movable end and pallet bearing capacity and body of rod bearing capacity phase
Match.With country rock TERM DEFORMATION, movable end will move continuous compressed spring along anchor tail direction and generate relative displacement with the body of rod, by
Surrouding rock deformation active force is transferred to anchor tail by the spring of compression, gradually increases the working resistance of anchor pole, when surrouding rock deformation active force
When reaching new equalization point with anchor pole working resistance, the deformation energy of country rock is released, and deformation tends to terminate, movable end and the body of rod
It no longer generates displacement and returns to stable state.On the other hand, when country rock deforms, load action, will by pallet in pallet
Load is transmitted to the body of rod, increases the working resistance of anchor pole, and then deformation controlling for rock surrounding gateways.Therefore the bearing capacity of pallet also has one
Provisioning request, such as have certain deformability, it is compressible when load is larger, will not embrittlement failure, have certain area, be conducive to
Anchor rod prestress is spread.And pallet should also be met certain requirements by being mounted at sleeve, the bearing capacity of sleeve.
Therefore, more demanding for the bearing capacity of anchor tail, pallet, sleeve and movable end in the present embodiment, by anchor tail, sleeve, activity
The bearing capacity of end and pallet matches with body of rod bearing capacity.
Preferred embodiment scheme, body of rod extended segment periphery are equipped with one group of protrusion structure.Extending in the present embodiment
One group of protrusion structure is set in section, generates the resistance of relative displacement when can increase movable end movement compressed spring with the body of rod.
The bearing capacity of preferred embodiment scheme, the protrusion structure is cumulative to anchor tail direction along the body of rod extended segment.
In the present embodiment it is anchor rod anchored after, if country rock deforms, more than the range that anchor pole can bear, movable end will be along anchor tail direction
Mobile continuous compressed spring generates relative displacement with the body of rod, and the deformation energy of country rock release around here comes back to stable state.Work as country rock
It deforms, to further enhance the resistance of movable end and body of rod relative movement, is designed on extended segment in the present embodiment again
Protrusion structure is cumulative to anchor tail direction along the body of rod extended segment, realizes that enhancing movable end is along anchor when country rock deforms again
Move resistance when compressed spring in tail direction.
Preferred embodiment scheme, the protrusion structure are screw thread.
Preferred embodiment scheme, the protrusion structure are the cyclic annular column structure along the body of rod periphery.
Preferred embodiment scheme, the anchor tail are cylindrical structure, and the cylindrical structure diameter is lived more than the sleeve
The internal diameter in moved end hole.With country rock TERM DEFORMATION, movable end by continuous compressed spring, be embodied in along anchor tail direction move with
The body of rod generates relative displacement.Surrouding rock deformation active force is transferred to anchor tail by the spring compressed, gradually increases the work of anchor pole
Resistance, when surrouding rock deformation active force reaches new equalization point with anchor pole working resistance, the deformation energy of country rock is released, deformation
Tend to terminate, movable end no longer generates displacement and return to stable state with the body of rod.
Preferred embodiment scheme, 20 other end of the sleeve are equipped with capping 202.In the other end of sleeve in the present embodiment
(i.e. the opposite other end of movable end) setting capping, on the one hand, can prevent moisture from entering when anchor pole works in wet condition and prolong
It stretches device and causes the ligase of extension apparatus and the body of rod that corrosion occurs, on the other hand, can also prevent the sundries such as silt or stone
Into sleeve inner.
Preferred embodiment scheme, the sleeve include regulating device, to adjust anchor rod anchored rear pallet between palisades
Distance.It is anchored in massif or rock stratum when anchor rod anchored section, extension apparatus is set on body of rod extended segment, filled by adjusting
It sets, tray can be made to be pressed on the palisades of anchor pole insertion in anchor rod anchored finish.
Preferred embodiment scheme, 3 bottom of the pallet are equipped with the through-hole being adapted to 20 outer diameter of the sleeve;The adjusting dress
It sets including nut 4, the sleeve 20 is equipped with the screw thread being adapted to the nut 4, and the nut is held in the palm in when screwing end state
Disk is pressed on the palisades that the anchor pole is inserted into.Specifically, the tray bottom passes through sleeve, by nut driving in sleeve, from
And distance of the pallet between palisades is adjusted, after nut driving, pallet is pressed on the palisades of anchor pole insertion.Another party
Face, when country rock deforms, load action transfers the load to anchor rod body in pallet, by pallet, increases the work of anchor pole
Resistance, and then deformation controlling for rock surrounding gateways.
In the description of the embodiment of the present invention, it is to be understood that term "upper", "lower", "front", "rear", " left side ",
The fingers such as " right side ", " hard straight ", "horizontal", "center", "top", "bottom", " top ", " bottom ", "inner", "outside", " inside ", " outside "
The orientation or positional relationship shown is to be based on the orientation or positional relationship shown in the drawings, merely to making in the description present invention and simplifying
Description, does not indicate or imply the indicated device or element must have a particular orientation, with specific azimuth configuration and behaviour
Make, therefore is not considered as limiting the invention.Wherein, " inboard " refers to inside or the region or space that fence up.It is " outer
Enclose " refer to region around certain particular elements or specific region.
In the description of the embodiment of the present invention, term " first ", " second ", " third ", " the 4th " are only describing mesh
, it is not understood to indicate or imply relative importance or implicitly indicates the quantity of indicated technical characteristic.It limits as a result,
There are the feature of " first ", " second ", " third ", " the 4th " to can explicitly or implicitly include one or more spy surely
Sign.In the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or more.
In the description of the embodiment of the present invention, it should be noted that unless otherwise clearly defined and limited, term
" installation ", " connected ", " connection ", " assembling " shall be understood in a broad sense, and can also be detachably to connect for example, it may be being fixedly connected
It connects, or is integrally connected;It can be directly connected, can also can be indirectly connected through an intermediary inside two elements
Connection.For the ordinary skill in the art, above-mentioned term in the present invention specific can be understood with concrete condition
Meaning.
In the description of the embodiment of the present invention, particular features, structures, materials, or characteristics can at any one or
It can be combined in any suitable manner in multiple embodiments or example.
In the description of the embodiment of the present invention, it is to be understood that "-" and "~" indicated is that two values are same
Range, and the range includes endpoint.Such as:" A-B " indicates to be greater than or equal to A, and the range less than or equal to B." A~B "
It indicates to be greater than or equal to A, and the range less than or equal to B.
In the description of the embodiment of the present invention, the terms "and/or", only it is a kind of description affiliated partner pass
Connection relationship indicates may exist three kinds of relationships, for example, A and/or B, can indicate:Individualism A exists simultaneously A and B, individually
There are these three situations of B.In addition, character "/" herein, it is a kind of relationship of "or" to typically represent forward-backward correlation object.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (10)
1. a kind of anchor pole being suitable for surrouding rock deformation, which is characterized in that including the body of rod and pallet, the body of rod includes connection anchor tail
Extended segment;It is arranged with the extension apparatus that can be moved axially with respect to the body of rod, the extension apparatus packet outside the extended segment and anchor tail
Sleeve and spring are included, the sleeve includes the movable end that can be used to relatively move with the body of rod, and spring is limited to the anchor tail and set
Between cylinder movable end;The pallet is mounted at the sleeve, and pallet in anchor rod anchored finish for pressing anchor pole
The palisades of insertion.
2. a kind of anchor pole being suitable for surrouding rock deformation according to claim 1, which is characterized in that the sleeve movable end is
The hollow cylinder structure of one trepanning, the hole internal diameter is equal with shank diameter, and the spring at front end is close to movable end tail portion.
3. a kind of anchor pole being suitable for surrouding rock deformation according to claim 1, which is characterized in that the spring inside diameter is more than
The shank diameter, and be less than anchor tail diameter, the spring capacity matches with body of rod bearing capacity, and according to the body of rod by
Power customizes device of spring stiffness coefficient.
4. a kind of anchor pole being suitable for surrouding rock deformation according to claim 1, which is characterized in that the anchor tail, sleeve, work
The bearing capacity of moved end and pallet matches with body of rod bearing capacity.
5. according to a kind of anchor pole being suitable for surrouding rock deformation of claim 1-4 any one of them, which is characterized in that the body of rod
Extended segment periphery is equipped with one group of protrusion structure.
6. a kind of anchor pole being suitable for surrouding rock deformation according to claim 5, which is characterized in that the protrusion structure is held
Loading capability is cumulative to anchor tail direction along the body of rod extended segment.
7. a kind of anchor pole being suitable for surrouding rock deformation according to claim 1, which is characterized in that the anchor tail is cylinder
Structure, the cylindrical structure diameter are more than the internal diameter of the sleeve activity stomidium.
8. a kind of anchor pole being suitable for surrouding rock deformation according to claim 1 or claim 7, which is characterized in that the sleeve is another
End is equipped with capping.
9. a kind of anchor pole being suitable for surrouding rock deformation according to claim 8, which is characterized in that the sleeve includes adjusting
Device, to adjust anchor rod anchored rear distance of the pallet between palisades.
10. a kind of anchor pole being suitable for surrouding rock deformation according to claim 9, which is characterized in that the tray bottom is set
There is the through-hole being adapted to the sleeve outer diameter;The regulating device includes nut, and the sleeve is equipped with and is adapted to the nut
Screw thread, for the nut in when screwing end state, pallet is pressed on the palisades that the anchor pole is inserted into.
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CN201810134464.XA CN108343457A (en) | 2018-02-09 | 2018-02-09 | A kind of anchor pole being suitable for surrouding rock deformation |
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CN201810134464.XA CN108343457A (en) | 2018-02-09 | 2018-02-09 | A kind of anchor pole being suitable for surrouding rock deformation |
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Cited By (2)
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CN109915188A (en) * | 2019-04-16 | 2019-06-21 | 中国矿业大学 | A kind of high-strength surely hinder detachable pushes back half davit and wall rock deformation monitoring method |
CN113739983A (en) * | 2021-07-21 | 2021-12-03 | 安徽理工大学 | Pressure relief threshold detection device of self-discharging pressure formula stock |
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Publication number | Priority date | Publication date | Assignee | Title |
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CN109915188A (en) * | 2019-04-16 | 2019-06-21 | 中国矿业大学 | A kind of high-strength surely hinder detachable pushes back half davit and wall rock deformation monitoring method |
CN113739983A (en) * | 2021-07-21 | 2021-12-03 | 安徽理工大学 | Pressure relief threshold detection device of self-discharging pressure formula stock |
CN113739983B (en) * | 2021-07-21 | 2024-01-12 | 安徽理工大学 | Pressure relief threshold detection device of self-discharging pressure formula stock |
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