CN108442956A - A kind of adaptive compression shear formula anchor pole - Google Patents
A kind of adaptive compression shear formula anchor pole Download PDFInfo
- Publication number
- CN108442956A CN108442956A CN201810457566.5A CN201810457566A CN108442956A CN 108442956 A CN108442956 A CN 108442956A CN 201810457566 A CN201810457566 A CN 201810457566A CN 108442956 A CN108442956 A CN 108442956A
- Authority
- CN
- China
- Prior art keywords
- anchor pole
- sleeve
- compression shear
- nut
- welding block
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000006835 compression Effects 0.000 title claims abstract description 22
- 238000007906 compression Methods 0.000 title claims abstract description 22
- 230000003044 adaptive effect Effects 0.000 title claims abstract description 5
- 239000011435 rock Substances 0.000 claims abstract description 31
- 238000003466 welding Methods 0.000 claims abstract description 14
- 239000000725 suspension Substances 0.000 description 6
- 239000003245 coal Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000006378 damage Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000013632 homeostatic process Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000007569 slipcasting Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000009955 starching Methods 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
- E21D21/0026—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
- E21D21/0053—Anchoring-bolts in the form of lost drilling rods
-
- 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
- E21D21/0093—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 invention discloses a kind of adaptive compression shear formula anchor poles, it includes T-type anchor pole（6）, sleeve（4）And threaded rod（7）, the sleeve（4）Bottom is fixed with welding block（3）, welding block（3）On have bolthole, sleeve（4）Inner wall sets spaced row compression shear slot（5）, anchor pole（6）Sleeve is stretched into from the bolthole of welding block, the round table surface of anchor pole front end is pressed in the top land of compression shear slot, and the anchor pole tail portion for stretching out sleeve is equipped with the baffle for being close to country rock wall（2）And nut（1）, nut（1）With anchor pole（6）For screw-thread fit, nut（1）Push down baffle（2）；Sleeve（4）Top opening portion is also welded with threaded rod（7）.The solution have the advantages that：The elongation of anchor pole is increased, anchor pole can absorb energy with the deformation of suitable for surrounding rock by the large deformation of itself, improve the support capacity of anchor pole.
Description
Technical field
The invention belongs to the protective equipments of civil engineering, are applied to tunnel and tunnel disaster prevention, or be applied to side slope branch
The engineerings such as shield.
Background technology
In the national economic development, coal plays the role of " engine ", and social progress, economic growth are all made that
Huge contribution.Safety, economy, efficient Roadway Support Technology are the necessary requirements realized mine and efficiently produced.Suspension roof support
Have the characteristics that speed of application it is fast, to protolith disturb it is small, give full play to Rock And Soil homeostasis ability etc., in geotechnical engineering field
In show more and more vigorous vitality.Suspension roof support is the important support form in China's coal-mine tunnel.
With being continuously increased for coal mining depth, the continuous deterioration of underground geological environment, crustal stress increases and rock mass
The variation of the characteristics such as mechanical property, intensity and deformation.The design method of traditional suspension roof support system, support technology and main
Material can not adapt to the requirement of deep laneway surrounding rock stability control.There are three types of the failure modes of common suspension roof support:Anchor
It is destroyed caused by failure by shear of the bar at sliding surface or at joint plane, the tensile bearing capacity deficiency of anchor pole and Rock And Soil
Destruction.In traditional deep tunnel support system, the large deformation breakoff phenomenon that country rock generates is more and more common.Due to anchor bar steel
The elongation percentage of muscle itself is low, the characteristics of can not generating suitable for surrounding rock large deformation, and anchor pole is once pulled off, then entire suspension roof support
System will fail, this brings unpredictable loss to engineering.
Invention content
Just it is to provide a kind of adaptive compression shear for deficiency, the technical problems to be solved by the invention existing for existing anchor pole
Formula anchor pole, it can be realized generates large deformation in country rock, and country rock can be acted on by the compression shear of anchor pole absorbs country rock
The energy that large deformation generates reaches new balance, to realize the suspension roof support of stability and high efficiency.
It is realized the technical problem to be solved by the present invention is to technical solution in this way, it includes T-type anchor pole, sleeve
And threaded rod, the sleeve bottom are fixed with welding block, have bolthole, sleeve lining to set spaced row compression shear slot on welding block,
Anchor pole stretches into sleeve from the bolthole of welding block, and the round table surface of anchor pole front end is pressed in the top land of compression shear slot, stretches out sleeve
Anchor pole tail portion is equipped with the baffle and nut for being close to country rock wall, and nut is screw-thread fit with anchor pole, and nut pushes down baffle；Sleeve top
Oral area is also welded with threaded rod.
The solution have the advantages that：The elongation for increasing anchor pole, it is big in deep rock mass recovery process to encounter country rock
When deformation, which can absorb energy with the deformation of suitable for surrounding rock by the large deformation of itself, improve the supporting of anchor pole
Ability ensure that the stability of rock mass engineering project, can be played to burst fire-disasters such as tunnel rock burst, coal mine rock bursts effective slow
Punching and governance role.
Description of the drawings
The description of the drawings of the present invention is as follows：
Fig. 1 is the structural diagram of the present invention.
In figure：1. nut；2. steel plate pallet；3. welding block；4. sleeve；5. compression shear slot；6. anchor pole；7. threaded rod.
Specific implementation mode
The invention will be further described with reference to the accompanying drawings and examples：
As shown in Figure 1, the present invention includes T-type anchor pole 6, sleeve 4 and threaded rod 7,4 bottom of the sleeve is fixed with welding block 3, welding block
There is bolthole on 3,4 inner wall of sleeve sets spaced row compression shear slot 5, and anchor pole 6 stretches into sleeve from the bolthole of welding block, before anchor pole
The round table surface at end is pressed in the top land of compression shear slot, and the anchor pole tail portion for stretching out sleeve is equipped with 2 He of baffle for being close to country rock wall
Nut 1, nut 1 are screw-thread fit with anchor pole 6, and nut 1 pushes down baffle 2；4 top opening portion of sleeve is also welded with threaded rod 7.
The present invention the course of work be：Inside present invention merging rock mass, after injection mortar reaches some strength, threaded rod
It is mutually twisted with mortar and generates sufficiently large frictional force to provide continual and steady anchor force to supporting construction.When country rock generate compared with
When large deformation, anchor pole is pulled out come suitable for surrounding rock large deformation by the compression shear effect of anchor pole 6.It is embodied in：When country rock produces
When raw moderate finite deformation, baffle 2 is made 6 axial tension of anchor pole, compression shear slot 5 be made by the compression shear of anchor pole end by rock lash
With when first 5 land of compression shear slot is wiped out, 6 front end round table surface of anchor pole is moved to next compression shear slot in turn, and anchor pole 6 is drawn
Go out sleeve with the deformation of suitable for surrounding rock, the energy of country rock large deformation release is constantly absorbed with this.After energy discharges, country rock becomes
To new stabilization, support system reaches stationary state again, and anchor pole is made to can continue to play support action, until owning in sleeve
Compression shear slot wiped out.
The effect of sleeve 4 is：When anchor pole 6 encounters larger load impact or rock burst, anchor pole 6 is drawn out, and is sent out with sleeve 4
The energy given birth to relative displacement and absorb country rock large deformation release makes supporting construction reach new balance.Sleeve 4 make the anchor pole have compared with
High safety stock can adapt to engineering emergency situations, ensure that the stability of supporting construction.The effect of welding block 3 is to prevent from starching
Liquid stream enters sleeve inner, influences the land of anchor pole shearing compression shear slot.
With sleeve 4 by being welded and fixed, the present invention is driven into inside rock mass threaded rod 7, and slip casting is simultaneously conserved to prescribed strength
Afterwards, the snap-in force of threaded rod 7 and slurries can provide stable anchor force to sleeve 4.
Claims (1)
1. a kind of adaptive compression shear formula anchor pole, it is characterized in that：Including T-type anchor pole（6）, sleeve（4）And threaded rod（7）, the set
Cylinder（4）Bottom is fixed with welding block（3）, welding block（3）On have bolthole, sleeve（4）Inner wall sets spaced row compression shear slot（5）,
Anchor pole（6）Sleeve is stretched into from the bolthole of welding block（4）, the round table surface of anchor pole front end is pressed in the top land of compression shear slot, stretches out
The anchor pole tail portion of sleeve is equipped with the baffle for being close to country rock wall（2）And nut（1）, nut（1）With anchor pole（6）For screw-thread fit,
Nut（1）Push down baffle（2）；Sleeve（4）Top opening portion is also welded with threaded rod（7）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810457566.5A CN108442956A (en) | 2018-05-14 | 2018-05-14 | A kind of adaptive compression shear formula anchor pole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810457566.5A CN108442956A (en) | 2018-05-14 | 2018-05-14 | A kind of adaptive compression shear formula anchor pole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108442956A true CN108442956A (en) | 2018-08-24 |
Family
ID=63203507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810457566.5A Pending CN108442956A (en) | 2018-05-14 | 2018-05-14 | A kind of adaptive compression shear formula anchor pole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108442956A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109162743A (en) * | 2018-09-26 | 2019-01-08 | 西南交通大学 | A kind of quasi- constant resistance and large deformation anchor cable of friction-shearing combined type |
| CN109798142A (en) * | 2019-03-25 | 2019-05-24 | 中铁第四勘察设计院集团有限公司 | It is a kind of with allowing the mountable long anchor pole of pressure function |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102086770A (en) * | 2011-03-15 | 2011-06-08 | 北京科技大学 | Cone resistive friction sleeve large-deformation anchor rod |
| AT13162U1 (en) * | 2012-04-12 | 2013-07-15 | Dywidag Systems Int Gmbh | A method of drilling holes in soil and for securing an anchor in a well and apparatus therefor |
| CN103422873A (en) * | 2013-08-16 | 2013-12-04 | 中铁二十一局集团有限公司 | Strong-strength extendable anchor rod |
| CN105736023A (en) * | 2016-02-02 | 2016-07-06 | 重庆大学 | Large-deformation energy-absorption anchor rod |
| CN105863697A (en) * | 2016-05-18 | 2016-08-17 | 重庆大学 | Tensile break resistant energy-absorbing anchor rod |
| CN206246140U (en) * | 2016-12-06 | 2017-06-13 | 山东科技大学 | A kind of constant-resistance allows pressure assembled bolt |
| CN206397530U (en) * | 2016-12-14 | 2017-08-11 | 重庆大学 | A kind of self extending large deformation anchor rod |
| CN107083772A (en) * | 2017-05-25 | 2017-08-22 | 陕西煤业化工技术研究院有限责任公司 | A kind of internal resistance type metal shearing resistance pressure-release anchor cable device |
| CN208267884U (en) * | 2018-05-14 | 2018-12-21 | 重庆大学 | A kind of adaptive compression shear formula anchor pole |
-
2018
- 2018-05-14 CN CN201810457566.5A patent/CN108442956A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102086770A (en) * | 2011-03-15 | 2011-06-08 | 北京科技大学 | Cone resistive friction sleeve large-deformation anchor rod |
| AT13162U1 (en) * | 2012-04-12 | 2013-07-15 | Dywidag Systems Int Gmbh | A method of drilling holes in soil and for securing an anchor in a well and apparatus therefor |
| CN103422873A (en) * | 2013-08-16 | 2013-12-04 | 中铁二十一局集团有限公司 | Strong-strength extendable anchor rod |
| CN105736023A (en) * | 2016-02-02 | 2016-07-06 | 重庆大学 | Large-deformation energy-absorption anchor rod |
| CN105863697A (en) * | 2016-05-18 | 2016-08-17 | 重庆大学 | Tensile break resistant energy-absorbing anchor rod |
| CN206246140U (en) * | 2016-12-06 | 2017-06-13 | 山东科技大学 | A kind of constant-resistance allows pressure assembled bolt |
| CN206397530U (en) * | 2016-12-14 | 2017-08-11 | 重庆大学 | A kind of self extending large deformation anchor rod |
| CN107083772A (en) * | 2017-05-25 | 2017-08-22 | 陕西煤业化工技术研究院有限责任公司 | A kind of internal resistance type metal shearing resistance pressure-release anchor cable device |
| CN208267884U (en) * | 2018-05-14 | 2018-12-21 | 重庆大学 | A kind of adaptive compression shear formula anchor pole |
Non-Patent Citations (1)
| Title |
|---|
| 王爱文;潘一山;赵宝友;李忠华;李国臻;代连朋;: "吸能防冲锚杆索-围岩耦合振动特征与防冲机理", 煤炭学报, no. 11 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109162743A (en) * | 2018-09-26 | 2019-01-08 | 西南交通大学 | A kind of quasi- constant resistance and large deformation anchor cable of friction-shearing combined type |
| CN109162743B (en) * | 2018-09-26 | 2020-03-13 | 西南交通大学 | Friction-shearing combined quasi-constant-resistance large-deformation anchor cable |
| CN109798142A (en) * | 2019-03-25 | 2019-05-24 | 中铁第四勘察设计院集团有限公司 | It is a kind of with allowing the mountable long anchor pole of pressure function |
| CN109798142B (en) * | 2019-03-25 | 2024-02-20 | 中铁第四勘察设计院集团有限公司 | Connectable long anchor rod with yielding function |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |