CN107642328A - A kind of high-pressure injection auto-oscillation type whole-length cohesive anchor bolt - Google Patents
A kind of high-pressure injection auto-oscillation type whole-length cohesive anchor bolt Download PDFInfo
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- CN107642328A CN107642328A CN201711040071.4A CN201711040071A CN107642328A CN 107642328 A CN107642328 A CN 107642328A CN 201711040071 A CN201711040071 A CN 201711040071A CN 107642328 A CN107642328 A CN 107642328A
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Abstract
The invention discloses a kind of high-pressure injection auto-oscillation type whole-length cohesive anchor bolt, and it is made up of vibroflotation jet bore bit, self-excited oscillation generator, anchor bar body, high pressure sealing plug, pallet, nut.Described vibroflotation jet bore bit is by high-pressure nozzle, back-moving spring, high-pressure jet passage, wing, inserted formed.Described self-excited oscillation generator is made up of the preceding moving tooth of odd-shaped cross section, rear moving tooth, anchor pole inner chamber, neck.Described anchor bar body is the hollow high-strength body of rod, and outer surface sets spiral shell rib stirring sheet.Described high pressure sealing plug is the progressive parabolic type high-strength resin of disk ring-type, and drilling orifice wall is fixed in by front end pallet and nut.The present invention will be widely used in the support reinforcement and recovery project of the engineering fields such as mine, traffic, water conservancy, have a extensive future, remarkable in economical benefits.
Description
Technical field
The present invention relates to mine, traffic, water conservancy, engineering field anchor pole.
Background technology
In the fields such as mine engineering, Geotechnical Engineering, Tunnel Engineering, to prevent stratum and surrouding rock deformation or unstability from jeopardizing
Engineering safety is, it is necessary to carry out support reinforcement to stratum country rock, and suspension roof support reinforcement technique is a kind of branch being most widely used
Shield technology.Suspension roof support can fully play the stabilizing power of Rock And Soil itself, but protolith is disturbed small, speed of application is fast,
Securely and reliably, economical and effective, thus in mine support, tunnel support, slope retaining, Large Underground chamber support, and it is all kinds of
It is widely used in building anti-floating, antidumping engineering.Wherein, the support reinforcement effect of whole-length cohesive anchor bolt is compared to general
Logical anchor pole is more effective.At present, underground engineering enters the deep mining epoch, deep wall rock self-stable ability is worse, crack is more developed,
Degree of crushing is higher, ambient stress more deteriorates, and the support reinforcement effect of common end-fixed bolter is undesirable, so whole-length cohesive anchor bolt
Seem even more important Deng novel anchor rod support form.
For problem above, present invention applicant's earlier application a kind of total length binding prestress anchor pole and its construction method
（Application number 201010515664.3）, it is intended that to overcome bearing capacity deficiency, anchor pole existing for common end anchor to break failure etc. and ask
Topic provides a kind of new structure type.But engineer applied shows, existing whole-length cohesive anchor bolt drilling efficiency is not high, especially in depth
In portion's underground engineering, rock is harder, causes during anchor bolt construction that penetration rate is slow, long in time limit, efficiency is low；Meanwhile anchor
Gu agent be typically directly plugged into drilling and and be not pressurized or flowing pressure is very low, it is difficult to invade broken or crack country rock body deep layer,
Reinforcement depth is shallow, scope is small, even with grouted anchor bar can by the mud of certain flowing pressure press-in country rock, deep layer and realize
Total length bonds, but existing grouted anchor bar voltage endurance capability has much room for improvement, and total length adhesive section slurry uniformity is bad, and drilling efficiency
Low problem is also very prominent.
In summary, existing whole-length cohesive anchor bolt, generally penetration rate is slow in solid rock, efficiency is low, cycle length, adds
Gu depth and being limited in scope, supporting effect is not satisfactory, and a kind of high-pressure injection auto-oscillation type whole-length cohesive anchor bolt of the present invention can be preferably
Solves above-mentioned supporting problem.
The content of the invention
The purpose of the present invention is to overcome the shortcomings of existing grouted anchor bar, there is provided a kind of high-pressure injection auto-oscillation type total length bonds anchor
Bar, solve surrounding rock supporting reinforcing problem in the underground engineering of deep, can both be used as permanent support, may be used as gib again.
A kind of construction of high-pressure injection auto-oscillation type whole-length cohesive anchor bolt of the present invention is：Sent out by vibroflotation jet bore bit, self-excited oscillation
Raw device, anchor bar body, high pressure sealing plug, pallet, nut are formed.
Described vibroflotation jet bore bit is high-pressure nozzle, back-moving spring, high-pressure jet passage, wing, inserted composition, high pressure
Jet pipe is circular cone-cylindrical type, and using high-strength wearable Hardmetal materials YG8N, the taper that anterior conical section is provided with guide functions enters
Mouthful, flow resistance and the pressure loss are reduced, afterbody cylindrical section convection body plays acceleration and produces high-speed jet ejection, high pressure
Jet pipe quantity can be according to rock flintiness and pump pressure condition setting 3 ~ 6, and back-moving spring is that effect is to make vibroflotation jet bore bit complete
Resetted rapidly after into an impact cycle, wing quantity can be arranged to 3 ~ 6 according to hardness degree of rock, and bizet curve is short throwing
Thing line style, inserted is impact resistant polycrystal diamond composite sheet, can vibratory impulse effect under efficiency crushing rock.
Described self-excited oscillation generator is made up of the preceding moving tooth of odd-shaped cross section, rear moving tooth, anchor pole inner chamber, neck, preceding group
Tooth connects anchor bar body, and rear moving tooth connects neck, neck connection vibration jet bore bit, the friendship in preceding moving tooth and rear moving tooth rotary course
Offsetting movable property gives birth to axial impact, rotates a circle and completes an impact cycle, realizes high-frequency percussion drilling hole bottom solid rock.
Described anchor bar body is the hollow high-strength body of rod, and outer surface is provided with spiral shell rib stirring sheet, spiral shell rib 10 ~ 20mm of width, pitch
50 ~ 100mm, direction is transported inversely in drilling direction, Anchor Agent can be sufficiently stirred into drilling orifice direction transport process,
Tack coat is formed, realizes that uniform, total length bonds.
Described high pressure sealing plug is the progressive parabolic type high-strength resin of disk ring-type, by front end pallet and nut by height
Densification blocking is fixed on drilling orifice wall, and anchor bar body passes through the center drilling of high pressure sealing plug, center drilling and anchor bar body mistake
It is full of cooperation, rotatory sealing pressure is up to more than 30MPa.
A kind of high-pressure injection auto-oscillation type whole-length cohesive anchor bolt of the present invention, its advantage are：
（1）Using vibroflotation jet bore bit, during drilling in addition to rotary drilling rock cutting, axial vibroflotation can be also produced
Effect, improves rock drilling or efficiency of breaking rock and the penetration rate of bore bit, significantly shortens the duration；Meanwhile high-pressure jet can crept into
During invade broken or crack country rock body deep layer, for prior art, support reinforcement scope is wide, depth is big, effect
Fruit is good, can effective deformation controlling for rock surrounding gateways, improve stress distribution.
（2）, can be while anchor pole normal rotary drilling using self-excited oscillation generator, it is not necessary to add extras and outer
Axial vibration impact can be achieved in power, and passes to bore bit, energy-conserving and environment-protective, and construction technology is simply, conveniently.
（3）The device processing technology thereof is simple, convenient disassembly, structure are reliable, and cost performance is superior, and physical and mechanical property is steady
It is fixed, suitable for engineering site complex work condition, provide technology and equipment for the underground engineering development ＆ construction of China deep and support.
Brief description of the drawings
Fig. 1 is a kind of high-pressure injection auto-oscillation type whole-length cohesive anchor bolt example structure schematic diagram of the present invention.
Fig. 2 is the structural representation of Fig. 1 mesohighs injection bore bit.
Fig. 3 is the A-A profiles of Fig. 2 mesohighs injection bore bit.
Fig. 4 is the structural representation of self-excited oscillation generator in Fig. 1.
Fig. 5 is the A-A profiles of self-excited oscillation generator in Fig. 4.
In figure：1- vibroflotation jet bore bits；2- self-excited oscillation generators；3- anchor bar bodies；4- spiral shell rib stirring sheets；5- high pressure sealings
Plug；6- pallets；7- nuts；8- flowing holes；9- drills；10- tack coats；101- high-pressure nozzles；102- back-moving springs；103- high pressures
Fluidic channel；104- wings；105- is inserted；Moving tooth before 201-；Moving tooth after 202-；203- anchor poles inner chamber；204- necks.
Embodiment
The invention provides a kind of high-pressure injection auto-oscillation type whole-length cohesive anchor bolt, to make the purpose of the present invention, technical scheme
And effect is clearer, clear and definite, the embodiment of the present invention is described in detail below in conjunction with accompanying drawing.
As shown in Fig. 1~Fig. 5, a kind of high-pressure injection auto-oscillation type whole-length cohesive anchor bolt of the present invention, including vibroflotation are penetrated
Flow bore bit 1, self-excited oscillation generator 2, anchor bar body 3, high pressure sealing plug 5, pallet 6, nut 7.
Described vibroflotation jet bore bit 1 is by high-pressure nozzle 101, back-moving spring 102, high-pressure jet passage 103, wing
104th, inserted 105 form, high-pressure nozzle 101 is circular cone-cylindrical type, using high-strength wearable Hardmetal materials YG8N, front portion circle
The taper import that section is provided with guide functions is bored, reduces flow resistance and the pressure loss, afterbody cylindrical section convection body plays acceleration and made
With and produce high-speed jet spray, the quantity of high-pressure nozzle 101 can according to rock flintiness and pump pressure condition setting 3 ~ 6, reset
The effect of spring 102 is vibroflotation jet bore bit 1 is resetted rapidly after completing an impact cycle, and the quantity of wing 104 can be according to rock
Hardness is arranged to 3 ~ 6, and bizet curve is short parabolic type, and inserted 105 be impact resistant polycrystal diamond composite sheet, can be
The lower efficiency crushing rock of vibratory impulse effect.
Described self-excited oscillation generator 2 is by the preceding moving tooth 201 of odd-shaped cross section, rear moving tooth 202, anchor pole inner chamber 203, neck
204 are formed, and preceding moving tooth 201 connects anchor bar body 3, and rear moving tooth 202 connects neck 204, and neck 204 connects vibration jet bore bit 1, preceding
Staggeredly mobile generation axial impact in moving tooth 201 and the rotary course of rear moving tooth 202, rotates a circle and completes an impact cycle,
Realize high-frequency percussion 9 bottom hole solid rocks of drilling.
Described anchor bar body 3 is the hollow high-strength body of rod, and outer surface is provided with spiral shell rib stirring sheet 4, spiral shell rib 10 ~ 20mm of width, spiral shell
Away from 50 ~ 100mm, transport direction inversely in drilling direction, can by Anchor Agent into the aperture direction transport process of drilling 9 fully
Stirring, tack coat 10 is formed between 9 hole walls of anchor bar body 3 and drilling, realizes that uniform, total length bonds.
Described high pressure sealing plug 5 is the progressive parabolic type high-strength resin of disk ring-type, passes through front end pallet 6 and nut 7
High pressure sealing plug 5 is fixed on to the aperture wall of drilling 9, anchor bar body 3 passes through the center drilling of high pressure sealing plug 5, center drilling
It is interference fitted with anchor bar body 3, rotatory sealing pressure is up to more than 30MPa.
A kind of high-pressure injection auto-oscillation type whole-length cohesive anchor bolt of the present invention, specifically includes the following course of work：
1st, first, during installation, self-vibration jet bore bit 1 is connected with self-excited oscillation generator 2 by neck 204, then by high densification
Blocking 5, pallet 6, nut 7 are in turn mounted to drilling orifice wall.
2nd, then, during drilling, with the rotation of anchor bar body 3, the preceding moving tooth 201 of triggering self-excited oscillation generator 2 rotates, preceding group
Tooth 201 is stirred rear moving tooth 202 and rotated, and staggeredly mobile rotate a circle completes an impact cycle, and subsequent back-moving spring 102 makes vibroflotation
Jet bore bit 1 resets rapidly after completing an impact cycle, is ready for impact cycle next time, so as to realize persistent loop
Impact.High-frequency percussion effect conduction makes wing 104 and inserted 105 wedging to the wing 104 of self-vibration jet bore bit 1 and inserted by 105
Drill 9 bottom hole rocks, and with the rotary motion process plow bottom hole rock of anchor bar body 3, realizes rotation plow and vibratory impulse
Coupling, make to produce a large amount of volumetric fractures in the rock short time, improve penetration rate.
3rd, simultaneously, flowing hole 8 of the high pressure Anchor Agent through anchor bar body 3 enters hollow lever, and flows into anchor pole inner chamber 203, and
The high-pressure jet passage 103 for flowing through self-vibration jet bore bit 1 is transported to high-pressure nozzle 101, sprays and forms high speed, high-pressure jet, both
Addi-tional crusher 9 bottom hole rocks of drilling can be played a part of in the course of the work, high speed, high-pressure fluid can again stirred in spiral shell rib
Whole drilling 9 is flowed through under the agitation of piece 4, the tack coat 10 that total length bonds is formed between anchor bar body 3 and the hole wall of drilling 9, finally,
After Anchor Agent solidifies and produces anchor force, nut 7 is tightened.
Claims (5)
1. a kind of high-pressure injection auto-oscillation type whole-length cohesive anchor bolt, it is characterised in that it is occurred by vibroflotation jet bore bit, self-excited oscillation
Device, anchor bar body, high pressure sealing plug, pallet, nut are formed；Described vibroflotation jet bore bit is by high-pressure nozzle, back-moving spring, height
Injection circulation road, wing, inserted composition；Described self-excited oscillation generator is in preceding moving tooth, rear moving tooth, anchor pole by odd-shaped cross section
Chamber, neck are formed；Described anchor bar body is the hollow high-strength body of rod, and outer surface sets spiral shell rib stirring sheet；Described high pressure sealing plug
For the progressive parabolic type high-strength resin of disk ring-type, drilling orifice wall is fixed in by front end pallet and nut.
A kind of 2. high-pressure injection auto-oscillation type whole-length cohesive anchor bolt according to claim 1, it is characterised in that：Self-excited oscillation occurs
The preceding moving tooth and rear moving tooth of device are staggeredly mobile in rotary course to produce axial impact, rotates a circle and completes an impact cycle,
And persistent loop impacts, and realizes high-frequency percussion drilling hole bottom solid rock.
A kind of 3. high-pressure injection auto-oscillation type whole-length cohesive anchor bolt according to claim 1, it is characterised in that：High-pressure nozzle is
Circular cone-cylindrical type, using high-strength wearable Hardmetal materials YG8N, anterior conical section is provided with the taper import of guide functions, drop
Low flow resistance and the pressure loss, afterbody cylindrical section convection body play acceleration and produce high-speed jet ejection, high-pressure nozzle
Quantity can be according to rock flintiness and pump pressure condition setting 3 ~ 6.
A kind of 4. high-pressure injection auto-oscillation type whole-length cohesive anchor bolt according to claim 1, it is characterised in that：Wing quantity can
3 ~ 6 are arranged to according to hardness degree of rock, bizet curve is short parabolic type.
A kind of 5. high-pressure injection auto-oscillation type whole-length cohesive anchor bolt according to claim 1, it is characterised in that：High pressure sealing plug
For the progressive parabolic type high-strength resin of disk ring-type, rotatory sealing pressure is up to more than 30MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711040071.4A CN107642328A (en) | 2017-10-31 | 2017-10-31 | A kind of high-pressure injection auto-oscillation type whole-length cohesive anchor bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711040071.4A CN107642328A (en) | 2017-10-31 | 2017-10-31 | A kind of high-pressure injection auto-oscillation type whole-length cohesive anchor bolt |
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| Publication Number | Publication Date |
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| CN107642328A true CN107642328A (en) | 2018-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711040071.4A Pending CN107642328A (en) | 2017-10-31 | 2017-10-31 | A kind of high-pressure injection auto-oscillation type whole-length cohesive anchor bolt |
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| CN (1) | CN107642328A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108547650A (en) * | 2018-06-21 | 2018-09-18 | 辽宁工程技术大学 | A kind of anchor bar body crossrib structure |
| CN109026099A (en) * | 2018-07-05 | 2018-12-18 | 安徽理工大学 | A kind of soft-rock tunnel full length fastening supporting construction and its construction method |
| CN110030022A (en) * | 2019-03-28 | 2019-07-19 | 华北科技学院 | A kind of hole sealing device and method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108547650A (en) * | 2018-06-21 | 2018-09-18 | 辽宁工程技术大学 | A kind of anchor bar body crossrib structure |
| CN109026099A (en) * | 2018-07-05 | 2018-12-18 | 安徽理工大学 | A kind of soft-rock tunnel full length fastening supporting construction and its construction method |
| CN109026099B (en) * | 2018-07-05 | 2023-09-12 | 安徽理工大学 | Soft rock roadway full-length anchoring supporting structure and construction method thereof |
| CN110030022A (en) * | 2019-03-28 | 2019-07-19 | 华北科技学院 | A kind of hole sealing device and method |
| CN110030022B (en) * | 2019-03-28 | 2024-05-24 | 华北科技学院 | Hole sealing device and method |
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