CN108868852A - A kind of yield supporting anchor pole - Google Patents
A kind of yield supporting anchor pole Download PDFInfo
- Publication number
- CN108868852A CN108868852A CN201810959021.4A CN201810959021A CN108868852A CN 108868852 A CN108868852 A CN 108868852A CN 201810959021 A CN201810959021 A CN 201810959021A CN 108868852 A CN108868852 A CN 108868852A
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- Prior art keywords
- rod
- anchor
- hemispherical
- pallet board
- section body
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- 230000008093 supporting effect Effects 0.000 title claims abstract description 69
- 238000004873 anchoring Methods 0.000 claims abstract description 29
- 239000000463 material Substances 0.000 claims description 16
- 239000011152 fibreglass Substances 0.000 claims description 14
- 238000003825 pressing Methods 0.000 claims description 8
- 239000007769 metal material Substances 0.000 claims description 7
- 238000005266 casting Methods 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000011435 rock Substances 0.000 abstract description 48
- 230000000694 effects Effects 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 3
- 239000003245 coal Substances 0.000 description 18
- 238000005553 drilling Methods 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000003245 working effect Effects 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
- E21D21/0006—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by the bolt material
-
- 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
- E21D21/0093—Accessories
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)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
Abstract
The present invention relates to Roadway Support Technology fields, in particular to a kind of yield supporting anchor pole.A kind of yield supporting anchor pole, including the body of rod and hemispherical anchor rod pallet board.The body of rod includes the outer anchor section body of rod and the anchoring section body of rod.Hemispherical anchor rod pallet board includes the through-hole along center axis thereof setting, and through-hole with the outer anchor section body of rod for connecting, and the spherical of hemispherical anchor rod pallet board is right against the anchoring section body of rod.The yield supporting anchor pole has big stroke in supporting, and high steady resistance yield supporting function is highly resistant to country rock large deformation and dynamic pressure effect.
Description
Technical field
The present invention relates to Roadway Support Technology fields, in particular to a kind of yield supporting anchor pole.
Background technique
In the prior art, anchor pole resistance coal side country rock is adopted and dynamic pressure ability is very weak, usually be will cause anchor pole and is broken failure
The accidents such as side are fried with dynamic pressure.Therefore, in stope of coal mines roadway support, lack the anchor pole dress that can bear to adopt large deformation and dynamic pressure
It is standby.
Summary of the invention
The purpose of the present invention is to provide a kind of yield supporting anchor pole, the yield supporting anchor pole is in supporting, when axle power reaches
To lever strength 80% or so when, hemispherical anchor rod pallet board start be embedded in country rock in, i.e., unlatching yield supporting function.Due to enclosing
Rock has plasticity conversion characteristic, so the axle power on the body of rod will keep base during hemispherical anchor rod pallet board is embedded in country rock
This stabilization.Therefore, which has big stroke in supporting, and high steady resistance yield supporting function is highly resistant to and encloses
Rock large deformation and dynamic pressure effect.
What the embodiment of the present invention was realized in：
A kind of yield supporting anchor pole, including the body of rod and hemispherical anchor rod pallet board；
The body of rod includes the outer anchor section body of rod and the anchoring section body of rod；
Hemispherical anchor rod pallet board includes the through-hole along center axis thereof setting, and through-hole is used to connect with the outer anchor section body of rod, and
And the spherical of hemispherical anchor rod pallet board is right against the anchoring section body of rod.
During application, the anchoring section body of rod of the body of rod protrudes into the drilling on roadway surrounding rock the yield supporting anchor pole,
Then make the anchoring section body of rod protruded into drilling and roadway surrounding rock form anchoring section under the action of Anchor Agent, while to connect
The hemispherical anchor rod pallet board connect on the outer anchor section body of rod is contacted with country rock, so that hemispherical anchor rod pallet board plays bearing country rock
Effect.In hemispherical anchor rod pallet board during being located at contact, since the spherical of hemispherical anchor rod pallet board is right against anchoring
The section body of rod, i.e., spherical is towards the shank portion protruded into drilling, so that the spherical of hemispherical anchor rod pallet board is right against
The country rock of anchoring section is simultaneously contacted with country rock, is supported with the anchoring section formed to country rock with the anchoring section body of rod.
During supporting, since coal side side wall rock is than relatively soft, as the stress of the body of rod increases, allowed when reaching setting
When pressure resistance (80% or so body of rod ultimate strength), hemispherical anchor rod pallet board starts to be gradually embedded country rock, is equal to anchor pole and exists
Constantly extend along axial, generates actual yield supporting effect.It can not be resisted to overcome the body of rod since elongation percentage is low
The defect of country rock large deformation and dynamic pressure supporting makes the Bolt System be provided with big stroke, high steady resistance yield supporting function.
In an embodiment of the present invention：
Hemispherical anchor rod pallet board is sheathed on the outer peripheral surface of the outer anchor section body of rod；
Yield supporting anchor pole further includes cushion block and the locking nut that is threadedly coupled with the outer anchor section body of rod；
Locking nut be used for hemispherical anchor rod pallet board against the setting of, cushion block locking nut and hemispherical anchor rod pallet board it
Between, the body of rod is detached to limit hemispherical anchor rod pallet board by the outer anchor section body of rod.
In an embodiment of the present invention：
The groove for cushion block and locking nut cooperation is provided on the baseplane of hemispherical anchor rod pallet board.
In an embodiment of the present invention：
Hemispherical anchor rod pallet board is made of metal material casting.
In an embodiment of the present invention：
Hemispherical anchor rod pallet board is made of glass-reinforced plastic material pressing mold.
In an embodiment of the present invention：
The material limits intensity of hemispherical anchor rod pallet board is 60kN.
A kind of yield supporting anchor pole, including the body of rod and hemispherical anchor rod pallet board；
The body of rod is made of glass-reinforced plastic material, and the body of rod includes the outer anchor section body of rod and the anchoring section body of rod；
Hemispherical anchor rod pallet board includes the through-hole along center axis thereof setting, and through-hole is used to connect with the outer anchor section body of rod, and
And the spherical of hemispherical anchor rod pallet board is right against the anchoring section body of rod；
Yield supporting anchor pole further includes cushion block and the locking nut that is threadedly coupled with the outer anchor section body of rod；
Locking nut be used for hemispherical anchor rod pallet board against the setting of, cushion block locking nut and hemispherical anchor rod pallet board it
Between, the body of rod is detached to limit hemispherical anchor rod pallet board by the outer anchor section body of rod.
In an embodiment of the present invention：
Hemispherical anchor rod pallet board is made of metal material casting.
In an embodiment of the present invention：
Hemispherical anchor rod pallet board is made of glass-reinforced plastic material pressing mold.
Technical solution of the present invention at least has the advantages that：
Yield supporting anchor pole provided by the invention is in supporting, when axle power reaches 80% or so of lever strength, hemisphere
Shape anchor rod pallet board starts to be embedded in country rock, i.e. unlatching yield supporting function.Since country rock has plasticity conversion characteristic, so half
During spherical anchor rod pallet board insertion country rock, the axle power on the body of rod will keep basicly stable.Therefore, which exists
There is big stroke, high steady resistance yield supporting function is highly resistant to country rock large deformation and dynamic pressure effect in supporting.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the structural schematic diagram of yield supporting anchor pole in the embodiment of the present invention；
Fig. 2 is the structural schematic diagram of hemispherical anchor rod pallet board in the embodiment of the present invention；
Fig. 3 is the scheme of installation of yield supporting anchor pole in the embodiment of the present invention.
Icon：200- yield supporting anchor pole；10- country rock；The 210- body of rod；The outer anchor section body of rod of 211-；The 212- anchoring section body of rod；
220- hemispherical anchor rod pallet board；221- through-hole；231- cushion block；232- locking nut.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiment of the present invention provided in the accompanying drawings is not intended to limit below claimed
The scope of the present invention, but be merely representative of selected embodiment of the invention.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without creative efforts belongs to the model that the present invention protects
It encloses.
It should be noted that：Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of embodiment of the present invention, it should be noted that the orientation or position of the instructions such as term "inner", "lower"
Relationship be based on the orientation or positional relationship shown in the drawings or the invention product using when the orientation or position usually put
Relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must have
There is specific orientation, be constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " the
One ", " second " etc. is only used for distinguishing description, is not understood to indicate or imply relative importance.
In the description of embodiment of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, term
" setting ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally connect
It connects；It can be mechanical connection, can be directly connected, can also can be in two elements indirectly connected through an intermediary
The connection in portion.For the ordinary skill in the art, the tool of above-mentioned term in the present invention can be understood with concrete condition
Body meaning.
Embodiment
In modernization mining area, coal mine roadway country rock 10 mostly uses greatly suspension roof support.But stope drift active workings to be subjected to it is biggish
It adopts dynamic deformation, especially coal and helps side wall rock 10, because to be subjected to coalcutter cutting, adopting for receiving is bigger with dynamic pressure.
Since a variety of Coal Mine Disasters can be caused when the direct cutting metal material of coalcutter, so, coal helps anchor pole normal
The glass-reinforced plastic material that can be cut using coalcutter.However, although the tensile strength of glass-reinforced plastic material can be suitable with steel,
It is that its elongation percentage all differs too big with steel, the elongation percentage of general glass reinforced plastic is only 2% or so, and the plastic deformation of steel is reachable
16% or so.Thus, be frequently due in practical supporting glass steel can not resist the adopting large deformation and dynamic pressure of coal side and
It is pulled off destruction, entire supporting failure is caused to result in disaster accident.How to enter from the overall structure for changing glass fibre reinforced plastics rockbolts
Hand improves the ability of its anti-large deformation and dynamic pressure, makes it have yield supporting function, becomes this field technology urgently to be resolved
Problem.
For these reasons, the present invention provides a kind of yield supporting anchor poles 200.
Fig. 1-Fig. 3 is please referred to, Fig. 1-Fig. 3 shows the specific structure of the yield supporting anchor pole 200 provided in embodiment.
As can be seen that the yield supporting anchor pole 200 includes the body of rod 210 and hemispherical anchor rod pallet board 220 from Fig. 1-Fig. 3.
Wherein, the body of rod 210 is made of glass-reinforced plastic material, and the body of rod 210 includes the outer anchor section body of rod 211 and the anchoring section body of rod
212。
Hemispherical anchor rod pallet board 220 includes the through-hole 221 along center axis thereof setting, and through-hole 221 is used for and outer anchor section bar
Body 211 connects, and the spherical of hemispherical anchor rod pallet board 220 is right against the anchoring section body of rod 212.
For the yield supporting anchor pole 200 during application, the anchoring section body of rod 212 of the body of rod 210 protrudes into roadway surrounding rock 10
On drilling in, then to protrude into the anchoring section body of rod 212 in drilling and the formation of roadway surrounding rock 10 under the action of Anchor Agent
Anchoring section, while the hemispherical anchor rod pallet board 220 being connected on the outer anchor section body of rod 211 is contacted with country rock 10, so that half
Spherical anchor rod pallet board 220 plays the role of supporting country rock 10.In hemispherical anchor rod pallet board 220 during being located at contact, by
It is right against the anchoring section body of rod 212 in the spherical of hemispherical anchor rod pallet board 220, i.e. spherical direction protrudes into the body of rod in drilling
210 parts, so that the spherical of hemispherical anchor rod pallet board 220 is right against the country rock 10 of anchoring section and contacts with country rock 10,
It is supported with the anchoring section formed to country rock 10 with the anchoring section body of rod 212.
During supporting, since coal side side wall rock 10 is than relatively soft, as the stress of the body of rod 210 increases, when reaching
Setting allow pressure resistance (80% or so 210 ultimate strength of the body of rod) when, hemispherical anchor rod pallet board 220 starts to be gradually embedded country rock
10, it is equal to anchor pole and constantly extends along axial, generates actual yield supporting effect.To overcome made of glass reinforced plastic
The body of rod 210 can not resist the defect of country rock 10 large deformation and dynamic pressure supporting since elongation percentage is low, have the Bolt System
There are big stroke, high steady resistance yield supporting function.
During supporting, hemispherical anchor rod pallet board 220 is connect with the outer anchor section body of rod 211 of the body of rod 210, and is being allowed
During pressing supporting, the relative position on the body of rod 210 is constant, to make hemispherical anchor rod pallet board 220 and outer anchor section bar
The position of body 211 remains unchanged during use, there are many way of example, can such as be set in the outer anchor section body of rod 211
Set the structure of the structure or threaded connection that engage with the through-hole 221 of hemispherical anchor rod pallet board 220.
And in the present embodiment, yield supporting anchor pole 200 further includes cushion block 231 and connects with outer 211 screw thread of the anchor section body of rod
The locking nut 232 connect, locking nut 232 are used for hemispherical anchor rod pallet board 220 against cushion block 231 is arranged in locking nut
Between 232 and hemispherical anchor rod pallet board 220, the body of rod 210 is detached to limit hemispherical anchor rod pallet board 220 by the outer anchor section body of rod 211.
By the way that hemispherical anchor rod pallet board 220 to be sheathed on to the outer peripheral surface of the outer anchor section body of rod 211, so that hemispherical anchor rod pallet board 220 is logical
Hole 221 and the outer anchor section body of rod 211 cooperate, and prevent hemispherical anchor rod pallet board 220 by the outer anchor section body of rod 211 by locking nut 232
It is detached from the body of rod 210, so as to be maintained at the position on the body of rod 210 in hemispherical 220 stress of anchor rod pallet board.It needs to illustrate
, during the yield supporting anchor pole 200 is installed, by locking nut 232 to hemispherical anchor rod pallet board 220 outside
During the position of the anchor section body of rod 211 is determined, hemispherical anchor rod pallet board 220 can be driven by rotation locking nut 232
It is moved on the outer anchor section body of rod 211, and makes hemispherical anchor rod pallet board 220 and anchoring section against and then locking nut can be passed through
232 increase the pressure between hemispherical anchor rod pallet board 220 and anchoring section, so that the yield supporting anchor pole 200 has first anchor
Power.
Further, to improve the connective stability between cushion block 231 and locking nut 232 and hemispherical anchor rod pallet board 220,
Therefore the groove for cushion block 231 and the cooperation of locking nut 232 is provided on the baseplane of hemispherical anchor rod pallet board 220.
In an embodiment of the present invention, when making hemispherical anchor rod pallet board 220, under the premise of guaranteeing service performance,
It can be cast by metal material and be made and can also be made of glass-reinforced plastic material pressing mold.
And in the present embodiment, the glass-reinforced plastic material pressing mold that hemispherical anchor rod pallet board 220 is 60kN by material limits intensity
It is made.
Since hemispherical anchor rod pallet board 220 is made of material limits intensity of the glass-reinforced plastic material pressing mold of 60kN, and answering
During, the radius R of hemispherical anchor rod pallet board 220 and the contact squeeze ultimate strength σ of country rock 10sIt is strong with the tension of anchor pole
Limit PcRelated, calculation is：In formula η be correction factor, 0<η≤1.The robustness of η and country rock 10 have
It closes, country rock 10 is weaker, and η is bigger, and maximum is taken as 1.The anti-contact squeeze ultimate strength of coal body (country rock 109) is 5MPa, due to
Than relatively soft, selecting correction factor η is 1 for coal side.Therefore, the radius R approximation that can calculate the hemispherical anchor rod pallet board 220 takes
For 60mm.In addition, under the premise of meeting intensity requirement, when hemispherical anchor rod pallet board 220 is made of metal material casting,
It is also required to meet above-mentioned condition, i.e. the radius of hemispherical anchor rod pallet board 220 is 60mm.
In practical projects, before TC3210 working face extraction, 10 Deformation control of working face two sides roadway surrounding rock is preferably simultaneously
See that the hemispherical anchor rod pallet board 220 of coal side side yield supporting anchor pole 200 does not have the phenomenon that being obviously embedded in country rock 10.
When work back production when, by secondary mining influence, yield supporting anchor pole 200 in front of working face at 60m to 100m
Hemispherical anchor rod pallet board 220 starts obviously to be embedded in the coal side (country rock 10) of the side tunnel Mei Bang.At this point, the body of rod 210 after actual measurement
Axle power is in 48kN or so.As working face closes on, hemispherical anchor rod pallet board 220 is embedded in coal again and helps (country rock 10) deeper and deeper, has
It can be completely embedded into coal side a bit, essentially eliminate makes the body of rod 210 break failure phenomenon since coal helps (country rock 10) large deformation, significantly
Reduce the degree of system dynamic pressure disaster.
It can see from (country rock 10) supporting of TC3210 working face coal side, since hemispherical anchor rod pallet board 220 can be complete
Full insertion coal side, yield supporting stroke can be in 100mm or more, so can be made using hemispherical anchor rod pallet board 220 of the invention
Anchor rod system has the function of that big stroke allows pressure.
When anchor axial force reaches 48kN, anchor rod system opens yield supporting function, and the mistake of pallet insertion country rock 10
Anchor axial force can be held essentially constant in journey.
To sum up, the yield supporting anchor pole 200 is in supporting, when the axle power of the body of rod 210 reaches 80% left side of 210 intensity of the body of rod
When right, hemispherical anchor rod pallet board 220 starts to be embedded in country rock 10, i.e. unlatching yield supporting function.Since country rock 10 has plasticity
Conversion characteristic, so the axle power on the body of rod 210 will keep basic during hemispherical anchor rod pallet board 220 is embedded in country rock 10
Stablize.Therefore, which has big stroke in supporting, and high steady resistance yield supporting function is highly resistant to and encloses
10 large deformation of rock and dynamic pressure effect.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of yield supporting anchor pole, which is characterized in that including：
The body of rod, the body of rod include the outer anchor section body of rod and the anchoring section body of rod；
Hemispherical anchor rod pallet board, the hemispherical anchor rod pallet board include the through-hole along center axis thereof setting, and the through-hole is used for
It is connect with the outer anchor section body of rod, and the spherical of the hemispherical anchor rod pallet board is right against the anchoring section body of rod.
2. yield supporting anchor pole according to claim 1, it is characterised in that：
The hemispherical anchor rod pallet board is sheathed on the outer peripheral surface of the outer anchor section body of rod；
The yield supporting anchor pole further includes cushion block and the locking nut that is threadedly coupled with the outer anchor section body of rod；
The locking nut is used for the hemispherical anchor rod pallet board against, cushion block setting in the locking nut and described
Between hemispherical anchor rod pallet board, the body of rod is detached to limit the hemispherical anchor rod pallet board by the outer anchor section body of rod.
3. yield supporting anchor pole according to claim 2, it is characterised in that：
The groove for the cushion block and locking nut cooperation is provided on the baseplane of the hemispherical anchor rod pallet board.
4. yield supporting anchor pole according to claim 1, it is characterised in that：
The hemispherical anchor rod pallet board is made of metal material casting.
5. yield supporting anchor pole according to claim 1, it is characterised in that：
The hemispherical anchor rod pallet board is made of glass-reinforced plastic material pressing mold.
6. yield supporting anchor pole according to claim 5, it is characterised in that：
The material limits intensity of the hemispherical anchor rod pallet board is 60kN.
7. a kind of yield supporting anchor pole, which is characterized in that including：
The body of rod, the body of rod are made of glass-reinforced plastic material, and the body of rod includes the outer anchor section body of rod and the anchoring section body of rod；
Hemispherical anchor rod pallet board, the hemispherical anchor rod pallet board include the through-hole along center axis thereof setting, and the through-hole is used for
It is connect with the outer anchor section body of rod, and the spherical of the hemispherical anchor rod pallet board is right against the anchoring section body of rod；
The yield supporting anchor pole further includes cushion block and the locking nut that is threadedly coupled with the outer anchor section body of rod；
The locking nut is used for the hemispherical anchor rod pallet board against, cushion block setting in the locking nut and described
Between hemispherical anchor rod pallet board, the body of rod is detached to limit the hemispherical anchor rod pallet board by the outer anchor section body of rod.
8. yield supporting anchor pole according to claim 7, it is characterised in that：
The hemispherical anchor rod pallet board is made of metal material casting.
9. yield supporting anchor pole according to claim 7, it is characterised in that：
The hemispherical anchor rod pallet board is made of glass-reinforced plastic material pressing mold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810959021.4A CN108868852A (en) | 2018-08-22 | 2018-08-22 | A kind of yield supporting anchor pole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810959021.4A CN108868852A (en) | 2018-08-22 | 2018-08-22 | A kind of yield supporting anchor pole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108868852A true CN108868852A (en) | 2018-11-23 |
Family
ID=64321481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810959021.4A Pending CN108868852A (en) | 2018-08-22 | 2018-08-22 | A kind of yield supporting anchor pole |
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| Country | Link |
|---|---|
| CN (1) | CN108868852A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109931085A (en) * | 2019-04-16 | 2019-06-25 | 中国矿业大学 | A kind of steady resistance energy-absorbing glass fibre reinforced plastics rockbolts with application pretightning force function |
| CN111878136A (en) * | 2020-08-03 | 2020-11-03 | 中国电建集团昆明勘测设计研究院有限公司 | Sectional type hollow drainage prestress yielding anchor rod and supporting method thereof |
| CN114635731A (en) * | 2022-03-21 | 2022-06-17 | 中国矿业大学 | Coal mine underground glass fiber reinforced plastic large-deformation support anchor rod |
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|---|---|---|---|---|
| CN201121522Y (en) * | 2007-11-30 | 2008-09-24 | 中国矿业大学 | Barrel type anchor bar of extrusion-injection anchor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109931085A (en) * | 2019-04-16 | 2019-06-25 | 中国矿业大学 | A kind of steady resistance energy-absorbing glass fibre reinforced plastics rockbolts with application pretightning force function |
| CN111878136A (en) * | 2020-08-03 | 2020-11-03 | 中国电建集团昆明勘测设计研究院有限公司 | Sectional type hollow drainage prestress yielding anchor rod and supporting method thereof |
| CN114635731A (en) * | 2022-03-21 | 2022-06-17 | 中国矿业大学 | Coal mine underground glass fiber reinforced plastic large-deformation support anchor rod |
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