CN109458203A - A kind of self-retaining formula early warning anchor pole and application method - Google Patents
A kind of self-retaining formula early warning anchor pole and application method Download PDFInfo
- Publication number
- CN109458203A CN109458203A CN201910034661.9A CN201910034661A CN109458203A CN 109458203 A CN109458203 A CN 109458203A CN 201910034661 A CN201910034661 A CN 201910034661A CN 109458203 A CN109458203 A CN 109458203A
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- self
- rod
- voussoir
- early warning
- retaining formula
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- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000009434 installation Methods 0.000 claims abstract description 26
- 230000001012 protector Effects 0.000 claims abstract description 13
- 239000011435 rock Substances 0.000 claims description 8
- 230000001066 destructive effect Effects 0.000 claims description 5
- 230000000295 complement effect Effects 0.000 claims description 3
- 230000013011 mating Effects 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims 1
- 239000003795 chemical substances by application Substances 0.000 description 9
- 238000010276 construction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 101100008050 Caenorhabditis elegans cut-6 gene Proteins 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification 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
- E21D21/0026—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
- E21D21/008—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)
- Road Signs Or Road Markings (AREA)
Abstract
A kind of self-retaining formula early warning anchor pole and application method, anchor pole include the body of rod, early warning type pallet, nut and elastic rubber head protector, and the body of rod is divided into conventional body of rod section and self-retaining formula body of rod section, and the two is threadedly coupled；Several notch are machined in self-retaining formula body of rod section, voussoir body is equipped in notch, voussoir body can be moved along notch scarf, thrust spring is equipped between notch and voussoir body vertical cut face, self-retaining formula body of rod section outer cover is equipped with rigid limit set free to rotate, and rigid limit covers surface equipped with voussoir body resigning mouthful and top is equipped with pointed tooth top plate.Application method are as follows: the body of rod is inserted into rockbolt installation hole until pointed tooth top plate acts against bottom hole, voussoir body resigning mouthful offsets one from another with voussoir body at this time；Pressure is applied to the body of rod, increases frictional force between pointed tooth top plate and bottom hole；The rotation body of rod is overlapped until voussoir body resigning mouthful with voussoir body position, pops up voussoir body, and it is self-locking that the body of rod of pulling back forms voussoir body, installation early warning type pallet, nut and elastic rubber head protector.
Description
Technical field
The invention belongs to colliery tunnel support technical fields, more particularly to a kind of self-retaining formula early warning anchor pole and user
Method.
Background technique
In colliery tunnel support, anchor pole is most widely used and the maximum support equipment of dosage, can be by lane using anchor pole
Road country rock anchors together, to improve the stability of country rock.
But existing anchor pole still has the shortcomings that three aspects:
1., the body of rod anchoring section of anchor pole generally need to realize the fixation between anchor rod body and country rock using Anchor Agent,
And Anchor Agent can generate pollution to environment to a certain extent, and the solidification occupied time of Anchor Agent is relatively long,
Construction efficiency is caused to be difficult to increase substantially；
2., the anchor pole in supporting state can not directly be judged when its stress changes；
3., the anchor pole in supporting state, directly exposed to outside palisades due to having the part body of rod, the exposed bar in this part
Body is easy to scratch the staff of operation in tunnel.
Summary of the invention
In view of the problems of the existing technology, the present invention provides a kind of self-retaining formula early warning anchor pole and application method, anchor pole
No longer Anchor Agent is needed to be fixed between the body of rod and country rock, fixation can be realized by self structure, due to eliminating anchor
Gu the use of agent not only alleviates problem of environmental pollution, and eliminates the curing time of Anchor Agent, obtain construction efficiency greatly
Amplitude improves；Can directly it be sentenced by visually for the anchor pole in supporting state when its stress changes
It is disconnected, and then play the purpose of safe early warning；For the anchor pole for being in supporting state, its exposed body of rod is carried out effectively anti-
Shield, reduces the risk that the staff of operation in tunnel is scraped off.
To achieve the goals above, the present invention adopts the following technical scheme: a kind of self-retaining formula early warning anchor pole, including bar
Body, early warning type pallet and nut, the body of rod are divided into conventional body of rod section and self-retaining formula body of rod section, conventional body of rod section and self-retaining
Formula body of rod section is fixedly connected with by screw-type connector；The early warning type pallet and nut are sequentially arranged at the exposed of conventional body of rod section
End；Notch is machined in the self-retaining formula body of rod section, the vertical cut face and body of rod central axes of notch are perpendicular, the beveling of notch
Intersect with body of rod central axes in face；The voussoir body complementary with notch progress is provided in the notch, on the scarf of notch
It is provided with T-type sliding slot, T-type convex block is provided on the scarf of the voussoir body, T-type convex block is located in T-type sliding slot, voussoir body
It can be moved along T-type sliding slot；Sliding slot plug is fixed in the outer end notch of the T-type sliding slot；In the vertical cut face of the notch and wedge
Thrust spring is installed, and thrust spring is parallel with T-type sliding slot between the vertical cut face of block；In the self-retaining formula body of rod section
Outer cover is equipped with rigid limit set, and rigid limit set has rotational freedom relative to self-retaining formula body of rod section；In the rigidity
Limit sleeve surface offers voussoir body resigning mouthful, and the top of rigid limit set is provided with pointed tooth top plate.
The notch quantity is several, and several notch are uniformly distributed along the central axes direction of self-retaining formula body of rod section, and adjacent
There is 45 °~60 ° of phase angle between notch.
The early warning type pallet includes pallet section and early warning cylinder section, and the conquassation destructive power of early warning cylinder section is rushing for the body of rod
Hit the 85%~90% of destructive power.
Annular slot is offered on the interior transverse plane of the nut, the early warning cylinder section is matched with annular slot grafting
It closes.
Annular convex edge is offered on the outer end side elevation of the nut, and elastic rubber head protector, bullet are fitted on nut
Property preventing rubber cap clamped and connect by annular convex edge and nut, the exposed junction of the routine body of rod section passes through elastic rubber protection
Cap is coated.
The application method of the self-retaining formula early warning anchor pole, includes the following steps:
Step 1: rockbolt installation hole is processed on roadway surrounding rock；
Step 2: self-retaining formula body of rod section towards rockbolt installation hole and is inserted in the hole, until rigid limit set top
Pointed tooth top plate acts against the bottom hole in rockbolt installation hole, at this time rigid limit cover upper voussoir body resigning mouthful and voussoir body position that
This is staggered；
Step 3: axial compressive force first is applied to the body of rod, is greater than frictional force between pointed tooth top plate and rockbolt installation hole bottom hole
Frictional force between self-retaining formula body of rod section and rigid limit set；
Step 4: the rotation body of rod makes to relatively rotate between self-retaining formula body of rod section and rigid limit set, until voussoir
Body resigning mouthful is overlapped with the position of voussoir body, and at this time under the action of thrust spring, voussoir is known from experience along T-type sliding slot from voussoir body
It stretches out in resigning mouthful, contacts until with rockbolt installation hole hole wall；
Step 5: the axial compressive force applied to the body of rod is shed, then an axial tension is applied to the body of rod, at this time voussoir body
It can be formed between self-retaining formula body of rod section and rockbolt installation hole hole wall self-locking；
Step 6: first loading onto early warning type pallet in the exposed junction set of conventional body of rod section, and early warning cylinder section is towards outside hole, then
Top nut, and tightening nut are installed, under the self-locking of voussoir body, the body of rod will be securely attached to one with rockbolt installation hole
It rises, finally elastic rubber head protector is installed on nut, rockbolt installation terminates.
Beneficial effects of the present invention:
Self-retaining formula early warning anchor pole of the invention and application method, no longer needed between anchor rod body and country rock Anchor Agent into
Row is fixed, and can be realized fixation by self structure, due to eliminating the use of Anchor Agent, not only be alleviated environmental pollution and ask
Topic, and the curing time of Anchor Agent is eliminated, so that construction efficiency is greatly improved；For the anchor for being in supporting state
Bar can directly be judged, and then play the purpose of safe early warning when its stress changes by visually；Needle
To the anchor pole for being in supporting state, effective protection is carried out to its exposed body of rod, has reduced the staff of operation in tunnel
The risk being scraped off.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of self-retaining formula early warning anchor pole of the invention；
Fig. 2 is the portion I enlarged drawing in Fig. 1；
State diagram when the voussoir body that Fig. 3 is Fig. 2 is in self-locking；
Fig. 4 is the portion II enlarged drawing in Fig. 1；
In figure, 1-conventional body of rod section, 2-self-retaining formula body of rod sections, 3-early warning type pallets, 4-nuts, 5-screw-types
Connector, 6-notch, 7-voussoir bodies, 8-T-type sliding slots, 9-T-type convex blocks, 10-sliding slot plugs, 11-thrust springs, 12-just
Property limit sleeve, 13-voussoir body resigning mouthfuls, 14-pointed tooth top plates, 15-pallet sections, 16-early warning cylinder sections, 17-annular snaps
Slot, 18-annular convex edges, 19-elastic rubber head protectors.
Specific embodiment
The present invention is described in further detail in the following with reference to the drawings and specific embodiments.
As shown in figures 1-4, a kind of self-retaining formula early warning anchor pole, including the body of rod, early warning type pallet 3 and nut 4, the bar
Body is divided into conventional body of rod section 1 and self-retaining formula body of rod section 2, and conventional body of rod section 1 passes through screw-type connector with self-retaining formula body of rod section 2
5 are fixedly connected with；The early warning type pallet 3 and nut 4 are sequentially arranged at the exposed junction of conventional body of rod section 1；In the self-retaining formula bar
Notch 6 is machined in body section 2, the vertical cut face and body of rod central axes of notch 6 are perpendicular, the scarf of notch 6 and body of rod central axes
Intersection；It is provided in the notch 6 and carries out complementary voussoir body 7 with notch 6, it is sliding that T-type is provided on the scarf of notch 6
Slot 8 is provided with T-type convex block 9 on the scarf of the voussoir body 7, and T-type convex block 9 is located in T-type sliding slot 8, and voussoir body 7 can be along T
Type sliding slot 8 is mobile；Sliding slot plug 10 is fixed in the outer end notch of the T-type sliding slot 8；Vertical cut face and wedge in the notch 6
Thrust spring 11 is installed, and thrust spring 11 is parallel with T-type sliding slot 8 between the vertical cut face of block 7；In the self-retaining formula
2 outer cover of body of rod section has rotatably mounted equipped with rigid limit set 12, rigid limit set 12 relative to self-retaining formula body of rod section 2
Degree；12 surfaces are covered in the rigid limit and offer voussoir body resigning mouthful 13, and the top of rigid limit set 12 is provided with pointed tooth
Top plate 14.
6 quantity of notch is several, and several notch 6 are uniformly distributed along the central axes direction of self-retaining formula body of rod section 2, and phase
There is 45 °~60 ° of phase angle between adjacent notch 6.
The early warning type pallet 3 includes pallet section 15 and early warning cylinder section 16, and the conquassation destructive power of early warning cylinder section 16 is
The 85%~90% of the impact failure power of the body of rod.
Annular slot 17, the early warning cylinder section 16 and annular slot 17 are offered on the interior transverse plane of the nut 4
It is mating.
Annular convex edge 18 is offered on the outer end side elevation of the nut 4, and elastic rubber head protector is fitted on nut 4
19, elastic rubber head protector 19 is clamped by annular convex edge 18 and nut 4 and is connected, and the exposed junction of the routine body of rod section 1 passes through
Elastic rubber head protector 19 is coated.
In the present embodiment, 6 quantity of notch in self-retaining formula body of rod section 2 is six, and the phase angle between adjacent cut 6 is
60 °, the length of early warning cylinder section 16 is 100mm, and the conquassation destructive power of early warning cylinder section 16 is the impact failure power of the body of rod
90%.
The application method of the self-retaining formula early warning anchor pole, includes the following steps:
Step 1: rockbolt installation hole is processed on roadway surrounding rock；
Step 2: self-retaining formula body of rod section 2 towards rockbolt installation hole and is inserted in the hole, until rigid limit covers 12 tops
Pointed tooth top plate 14 act against the bottom hole in rockbolt installation hole, the voussoir body resigning mouthful 13 and voussoir body on rigid limit set 12 at this time
7 position offsets one from another；
Step 3: axial compressive force first is applied to the body of rod, keeps frictional force between pointed tooth top plate 14 and rockbolt installation hole bottom hole big
Frictional force between self-retaining formula body of rod section 2 and rigid limit set 12；
Step 4: the rotation body of rod covers self-retaining formula body of rod section 2 and rigid limit and relatively rotates between 12, until
Voussoir body resigning mouthful 13 is overlapped with the position of voussoir body 7, and at this time under the action of thrust spring 11, voussoir body 7 can be sliding along T-type
Slot 8 is stretched out from voussoir body resigning mouthful 13, is contacted until with rockbolt installation hole hole wall；
Step 5: the axial compressive force applied to the body of rod is shed, then an axial tension is applied to the body of rod, at this time voussoir body
7 meetings form self-locking between self-retaining formula body of rod section 2 and rockbolt installation hole hole wall；
Step 6: first loading onto early warning type pallet 3 in the exposed junction set of conventional body of rod section 1, and early warning cylinder section 16 is towards hole
Outside, then top nut 4, and tightening nut 4 are installed, under the self-locking of voussoir body 7, the body of rod will firmly connect with rockbolt installation hole
It is connected together, finally elastic rubber head protector 19 is installed on nut 4, rockbolt installation terminates.
During making an inspection tour tunnel, if it find that the early warning cylinder section 16 of early warning type pallet 3 is crushed, then illustrate
Anchor rod body at this time has reached the 90% of its nominal load-bearing capacity, and the staff of underground can be reminded to reinforce branch in time
Shield, the safety of roadway support is effectively ensured.
The scope of patent protection that scheme in embodiment is not intended to limit the invention, it is all without departing from carried out by the present invention etc.
Effect implements or change, is both contained in the scope of the patents of this case.
Claims (6)
1. a kind of self-retaining formula early warning anchor pole, it is characterised in that: including the body of rod, early warning type pallet and nut, the body of rod is divided into
Conventional body of rod section and self-retaining formula body of rod section, conventional body of rod section are fixedly connected with self-retaining formula body of rod section by screw-type connector；Institute
It states early warning type pallet and nut is sequentially arranged at the exposed junction of conventional body of rod section；It is machined with and cuts in the self-retaining formula body of rod section
Mouthful, the vertical cut face and body of rod central axes of notch are perpendicular, and the scarf of notch intersects with body of rod central axes；It is set in the notch
It is equipped with the voussoir body complementary with notch progress, T-type sliding slot is provided on the scarf of notch, in the scarf of the voussoir body
On be provided with T-type convex block, T-type convex block is located in T-type sliding slot, and voussoir body can be moved along T-type sliding slot；In the outer of the T-type sliding slot
End slot mouth is fixed with sliding slot plug；Thrust spring is installed between the vertical cut face of the notch and the vertical cut face of voussoir body, and
Thrust spring is parallel with T-type sliding slot；Rigid limit set is housed in the self-retaining formula body of rod section outer cover, rigid limit covers phase
There is rotational freedom for self-retaining formula body of rod section；Voussoir body resigning mouthful is offered on rigid limit set surface, rigid
The top of property limit sleeve is provided with pointed tooth top plate.
2. a kind of self-retaining formula early warning anchor pole according to claim 1, it is characterised in that: the notch quantity is several, if
Dry notch is uniformly distributed along the central axes direction of self-retaining formula body of rod section, and the phase between adjacent cut with 45 °~60 °
Angle.
3. a kind of self-retaining formula early warning anchor pole according to claim 1, it is characterised in that: the early warning type pallet includes support
Disk section and early warning cylinder section, the conquassation destructive power of early warning cylinder section are the 85%~90% of the impact failure power of the body of rod.
4. a kind of self-retaining formula early warning anchor pole according to claim 3, it is characterised in that: in the interior transverse plane of the nut
On offer annular slot, the early warning cylinder section and annular slot are mating.
5. a kind of self-retaining formula early warning anchor pole according to claim 1, it is characterised in that: edge-on in the outer end of the nut
Annular convex edge is offered on face, elastic rubber head protector is fitted on nut, and elastic rubber head protector passes through annular convex edge and spiral shell
Master card load connects, and the exposed junction of the routine body of rod section is coated by elastic rubber head protector.
6. the application method of self-retaining formula early warning anchor pole described in claim 1, it is characterised in that include the following steps:
Step 1: rockbolt installation hole is processed on roadway surrounding rock；
Step 2: self-retaining formula body of rod section towards rockbolt installation hole and is inserted in the hole, until the pointed tooth on rigid limit set top
Top plate acts against the bottom hole in rockbolt installation hole, and rigid limit covers upper voussoir body resigning mouthful at this time and the position of voussoir body is wrong each other
It opens；
Step 3: first applying axial compressive force to the body of rod, is greater than frictional force between pointed tooth top plate and rockbolt installation hole bottom hole from solid
Frictional force between fixed pattern body of rod section and rigid limit set；
Step 4: the rotation body of rod makes to relatively rotate between self-retaining formula body of rod section and rigid limit set, until voussoir body allows
Position mouth is overlapped with the position of voussoir body, and at this time under the action of thrust spring, voussoir, which is known from experience, steps down along T-type sliding slot from voussoir body
It stretches out in mouthful, contacts until with rockbolt installation hole hole wall；
Step 5: the axial compressive force applied to the body of rod is shed, then an axial tension is applied to the body of rod, voussoir is known from experience at this time
It is formed between self-retaining formula body of rod section and rockbolt installation hole hole wall self-locking；
Step 6: first loading onto early warning type pallet in the exposed junction set of conventional body of rod section, and early warning cylinder section is towards outside hole, then installs
Top nut, and tightening nut, under the self-locking of voussoir body, the body of rod will be securely attached to together, most with rockbolt installation hole
Elastic rubber head protector is installed on nut afterwards, rockbolt installation terminates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910034661.9A CN109458203B (en) | 2019-01-15 | 2019-01-15 | Self-fixing early warning anchor rod and use method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910034661.9A CN109458203B (en) | 2019-01-15 | 2019-01-15 | Self-fixing early warning anchor rod and use method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109458203A true CN109458203A (en) | 2019-03-12 |
| CN109458203B CN109458203B (en) | 2023-11-07 |
Family
ID=65616271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910034661.9A Active CN109458203B (en) | 2019-01-15 | 2019-01-15 | Self-fixing early warning anchor rod and use method |
Country Status (1)
| Country | Link |
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| CN (1) | CN109458203B (en) |
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| CN102644470A (en) * | 2012-04-18 | 2012-08-22 | 李治中 | General energy-saving quick anchoring method and general energy-saving quick anchor rod |
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| CN102877870A (en) * | 2012-10-18 | 2013-01-16 | 湖南科技大学 | Static and dynamic combined intelligent pre-warning anchor rod |
| CN103104270A (en) * | 2013-02-19 | 2013-05-15 | 裴志胜 | Shear type expansion anchor rod and extension application thereof |
| CN103643977A (en) * | 2013-11-21 | 2014-03-19 | 中国矿业大学 | Full-anchor partition pressure transferring grouting anchor rod and application method thereof |
| CN103939120A (en) * | 2014-05-12 | 2014-07-23 | 罗宗帆 | Multi-joint self-expansion anchor rod |
| CN106194225A (en) * | 2015-05-04 | 2016-12-07 | 河南理工大学 | Reverse wedge shape reaming at the bottom of a kind of bolthole hole strengthens anchoring property method |
| CN106761868A (en) * | 2016-12-30 | 2017-05-31 | 安徽理工大学 | A kind of novel durable magnetizes anchor pole |
| CN108360512A (en) * | 2018-02-14 | 2018-08-03 | 重庆恩光科技有限公司 | The anchor of high tensile |
| CN108678787A (en) * | 2018-07-19 | 2018-10-19 | 开滦能源化工股份有限公司范各庄矿业分公司 | Resin anchoring agent rapid installation device and construction method |
| CN109139072A (en) * | 2018-10-10 | 2019-01-04 | 山西金宝泰能源科技有限公司 | A kind of multiple spot self-locking anchor bar of falling inclined |
-
2019
- 2019-01-15 CN CN201910034661.9A patent/CN109458203B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102644470A (en) * | 2012-04-18 | 2012-08-22 | 李治中 | General energy-saving quick anchoring method and general energy-saving quick anchor rod |
| CN102691514A (en) * | 2012-06-07 | 2012-09-26 | 中铁西南科学研究院有限公司 | Multistage sectional grouting-free self-expansion type anchoring rod |
| CN102877870A (en) * | 2012-10-18 | 2013-01-16 | 湖南科技大学 | Static and dynamic combined intelligent pre-warning anchor rod |
| CN103104270A (en) * | 2013-02-19 | 2013-05-15 | 裴志胜 | Shear type expansion anchor rod and extension application thereof |
| CN103696790A (en) * | 2013-02-19 | 2014-04-02 | 裴春光 | Shear type expansion anchor rod and application thereof |
| CN103643977A (en) * | 2013-11-21 | 2014-03-19 | 中国矿业大学 | Full-anchor partition pressure transferring grouting anchor rod and application method thereof |
| CN103939120A (en) * | 2014-05-12 | 2014-07-23 | 罗宗帆 | Multi-joint self-expansion anchor rod |
| CN106194225A (en) * | 2015-05-04 | 2016-12-07 | 河南理工大学 | Reverse wedge shape reaming at the bottom of a kind of bolthole hole strengthens anchoring property method |
| CN106761868A (en) * | 2016-12-30 | 2017-05-31 | 安徽理工大学 | A kind of novel durable magnetizes anchor pole |
| CN108360512A (en) * | 2018-02-14 | 2018-08-03 | 重庆恩光科技有限公司 | The anchor of high tensile |
| CN108678787A (en) * | 2018-07-19 | 2018-10-19 | 开滦能源化工股份有限公司范各庄矿业分公司 | Resin anchoring agent rapid installation device and construction method |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN109458203B (en) | 2023-11-07 |
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