CN202338349U - Bamboo-joint type high-strength anchor rod - Google Patents

Bamboo-joint type high-strength anchor rod Download PDF

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Publication number
CN202338349U
CN202338349U CN2011204590298U CN201120459029U CN202338349U CN 202338349 U CN202338349 U CN 202338349U CN 2011204590298 U CN2011204590298 U CN 2011204590298U CN 201120459029 U CN201120459029 U CN 201120459029U CN 202338349 U CN202338349 U CN 202338349U
Authority
CN
China
Prior art keywords
bolt body
type high
anchor
anchor rod
high strength
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.)
Expired - Fee Related
Application number
CN2011204590298U
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Chinese (zh)
Inventor
蒋宇静
王刚
吴学震
陈连军
文志杰
王春光
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shandong University of Science and Technology
Original Assignee
Shandong University of Science and Technology
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Filing date
Publication date
Application filed by Shandong University of Science and Technology filed Critical Shandong University of Science and Technology
Priority to CN2011204590298U priority Critical patent/CN202338349U/en
Application granted granted Critical
Publication of CN202338349U publication Critical patent/CN202338349U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a bamboo-joint type high-strength anchor rod, comprising a full-length anchored type anchor rod body, a pallet and a nut, wherein a plurality of antiskid anchor joints are arranged on the anchor rod body. The antiskid anchor joints can adopt multiple modes, for example, all the antiskid anchor joints are approximate to a conical body; the conical body is formed by 3-6 conical body subblocks which are uniformly distributed on the periphery of the anchor rod body; a gap is left between a pair of adjacent conical body subblocks; and all the conical body subblocks are welded or bonded on the anchor rod body. Due to adoption of the bamboo-joint type high-strength anchor rod, the stressed state of the anchor rod in site application is obviously optimized. Preliminary experiment proves that due to use of the antiskid anchor joints, not only is the friction force between the anchor rod and mortar increased, but also the friction force between an anchoring agent and a rock body is increased simultaneously, so that the anchoring force of the anchor rod is greatly increased. The bamboo-joint type high-strength anchor rod has the advantages that the use is simple, and the reliability and the support effect can be obviously improved under the conditions that the construction efficiency is not influenced and the cost is not increased excessively.

Description

The bamboo joint type high strength anchor bar
Technical field
The utility model relate to a kind of in the tunnel, the anchor pole that uses of fields such as water conservancy, mine working.
Background technology
In domain engineering processs of construction such as tunnel, water conservancy, mine working, anchor pole becomes most widely used support apparatus.Anchor pole can improve the mechanical property of rock mass self, gives full play to rock mass self-supporting ability, thereby guarantees the monolithic stability and the safety of rock slope body and country rock.In addition, can betterment works environment and workmanship, practice thrift engineering material and cost, the reduction of erection time.
Bolt support not only is used for preliminary bracing, also is the part of permanent support.In mine timbering, having replaced passive support or temporary support structures basically becomes basic temporary lining technology, and becomes the permanent support structure sometimes after uniting use with steel mesh reinforcement, sprayed mortar.
Along with the continuous intensification of mining depth, geostatic stress increases, the geological conditions deterioration causes the supporting difficulty to strengthen, so anchor-holding force of anchor bolt requires increasing.In order to prevent the anchor pole damage inactivation; Mainly aspect following three, take measures: the one, increase the adhesion stress between the body of rod and the anchoring agent, the 2nd, increase the adhesion stress between anchoring agent and the rock mass, the 3rd, increase anchor pole self intensity; Like the body of rod, nut and pallet intensity, and strengthen the correlative protection measure.
To above-mentioned preceding two aspects, for improving anchor-holding force of anchor bolt, existing method comprises that mainly the body of rod adopts screw-thread steel, the termination point of anchor rod design of improvement etc.But through practical application and experiment confirm, existing anchor pole exists that anchored force is not enough, cost is high, processed complex and construction quality are difficult to problems such as assurance.
The utility model content
The task of the utility model is to solve the technical problem that anchor pole exists in the prior art, and a kind of bamboo joint type high strength anchor bar is provided.
Its technical solution is:
A kind of bamboo joint type high strength anchor bar comprises full length fastening formula bolt body, pallet and nut, and bolt body is provided with several anti-skid anchor joints.
Above-mentioned each anti-skid anchor joint is similar to bullet, and this bullet is made up of the bullet piecemeal of 3 to 6 equiblibrium mass distributions on the bolt body circumference, leaves the gap between the adjacent a pair of bullet piecemeal.
Above-mentioned each bullet piecemeal can be cast, welds or be bonded on the bolt body.
Above-mentioned anti-skid anchor joint also can be small one and large one two flange, and the card of each flange is provided with open-work; Above-mentioned each flange is through being threaded on the bolt body.
Above-mentioned anti-skid anchor joint also can be two collars one in front and one in back, between two collars, is provided with several V shape poles, and on the collar, the other end was fixed on the collar of back before an end of each V shape pole was fixed on.
Above-mentioned two collars are through being threaded on the bolt body.
Above-mentioned anti-skid anchor joint also can be one section half-cone cartridge type nut, and half-cone cartridge type nut is through mechanical stamping or be welded to connect on bolt body.
Above-mentioned anti-skid anchor joint also can be one section taper cartridge type nut, and taper cartridge type nut is through being threaded on the bolt body.
Above-mentioned bolt body also can comprise the multistage body of rod, and the same taper cartridge type of adjacent a pair of body of rod precession nut docks.Solved the difficulty that longer anchor bolt construction is installed at narrow space like this.
Above-mentioned bolt body is that the steel pipe that adopts solid indented bars or external surface to be provided with screw thread is processed.
Free end in bolt body is provided with threaded joints, and pallet is fixed on the place, aperture of boring, and the free end of bolt body stretches out pallet, and nut is connected on the threaded joints of bolt body.
The utlity model has following useful technique effect:
The utility model makes whole anchor pole seem to be similar to the bamboo joint type structure through several anti-skid anchor joints (node) are set on bolt body, can increase notional roughness between anchor pole and the mortar obviously, optimizes the stress of anchor pole.Mortar solidifies the back stress deformation in addition, and the existence of node increases the normal pressure between mortar and the rock mass, like this mortar and rock mass adhesion stress is also improved a lot.
In addition; In work progress,, use specific binding material (resin anchoring agent, cement mortar etc.) targetedly, in controlled range, produce little distortion according to on-the-spot rock surface character; Cause anchor pole, anchoring agent and country rock mutual extrusion, anchored force is effectively improved.Consider this kind situation, also can above-mentioned anti-skid anchor joint be inverted, to improve the stress performance between the body of rod and the mortar.
The utility model has obviously been optimized the stress when anchor pole is used at the scene.Preliminary experiment proves that the use of anti-skid anchor joint has not only increased the frictional force between anchor pole and the mortar, and the frictional force between anchoring agent and the rock mass is increased, and anchor-holding force of anchor bolt is increased greatly.The utility model uses simple, can not influence efficiency of construction, and cost increases under few situation, significantly improves the reliability and the supporting effect of anchor pole.
Description of drawings
Below in conjunction with the accompanying drawing and the specific embodiment the utility model is described further:
Fig. 1 is the structural principle sketch map of a kind of embodiment of the utility model.
The situation sketch map that Fig. 2 uses for Fig. 1 mode at the scene.
Fig. 3 saves a kind of structural principle sketch map of embodiment for anti-skid anchor in Fig. 1 mode.
Fig. 4 is the A-A sectional structure principle schematic of Fig. 3.
Fig. 5 is for mainly showing the sketch map of second kind of embodiment of anti-skid anchor joint in the utility model.
Fig. 6 is for mainly showing the sketch map of the third embodiment of anti-skid anchor joint in the utility model.
Fig. 7 is the A-A sectional structure principle schematic of Fig. 6.
Fig. 8 is for mainly showing the sketch map of the 4th kind of embodiment of anti-skid anchor joint in the utility model, the situation when being in decomposition for parts.
Fig. 9 is the sectional structure principle schematic of Fig. 8 mode, the situation when combining for parts.
Figure 10 is for mainly showing the sketch map of the 5th kind of embodiment of anti-skid anchor joint in the utility model, the situation when being in decomposition for parts.
Figure 11 is the sketch map that mainly shows the situation when parts combine in Figure 10 mode.
Figure 12 is for mainly showing the sketch map of the 6th kind of embodiment of anti-skid anchor joint in the utility model, the situation during for disassembled.
Figure 13 is the sketch map that mainly shows the situation when parts combine in Figure 12 mode.
The specific embodiment
In conjunction with Fig. 1 to Fig. 4, a kind of bamboo joint type high strength anchor bar comprises full length fastening formula bolt body 1, pallet 2 and nut 3, and bolt body is provided with several anti-skid anchor joints 4.Above-mentioned bolt body can be high-intensity solid indented bars; Also can be the threaded hollow steel pipe of external surface, but the double as Grouting Pipe, and on steel pipe, reserve the grout outlet of right quantity.Above-mentioned anti-skid anchor joint is provided with (like suit) on bolt body, and its quantity and spacing can freely be set as required.Above-mentioned each anti-skid anchor joint is similar to bullet; This bullet is made up of the bullet piecemeal 401 of 3 to 6 equiblibrium mass distributions on the bolt body circumference; Originally be exemplified as 4; Leave gap 402 between the adjacent a pair of bullet piecemeal, the purpose that the gap is set mainly is in order when anchor pole inserts boring, to reduce resistance, convenient construction.Above-mentioned each bullet divides block welding or is bonded on the bolt body.Free end in above-mentioned bolt body is provided with threaded joints, and pallet is fixed on the place, aperture of boring, and the free end of bolt body stretches out pallet, and nut is connected on the threaded joints of bolt body.When using at the scene, bolt body adopts the form of full length fastening, is full of the anchoring agent in the boring.Owing to increased the anti-skid anchor joint, this anchor pole can obtain bigger uplift resistance at the construction initial stage.After the said supporting anchoring material initial set, under high stress, can produce micro-deformation with the raising anchored force, and not destroy.
Anti-skid anchor joint in the utility model also has second kind of embodiment except that above-mentioned embodiment.That is: combine Fig. 5, each anti-skid anchor joint 4 comprises a big flange 401 and a small flange plate 402, and the card of each flange is provided with open-work 403, and the purpose that open-work is set mainly is in order when anchor pole inserts boring, to reduce resistance, convenient construction.Above-mentioned each flange can be through being threaded on the bolt body 1.
Anti-skid anchor joint in the utility model also has the third embodiment except that above-mentioned embodiment.That is: combine Fig. 6 and Fig. 7, each anti-skid anchor joint 4 comprise a preceding collar 401 with one after the collar 402, between two collars, be provided with several V shape poles 403, before an end of each V shape pole is fixed on the collar, the other end is fixed on afterwards on the collar.Above-mentioned two collars can be through being threaded on the bolt body 1.
Anti-skid anchor joint in the utility model also has the 4th kind of embodiment except that above-mentioned embodiment.That is: combine Fig. 8 and Fig. 9, each anti-skid anchor joint 4 is one section half-cone cartridge type nut, and half-cone cartridge type nut is through mechanical stamping or be welded to connect on bolt body 1.This design also can reduce the resistance that anchor pole inserts boring, convenient construction.
Anti-skid anchor joint in the utility model also has the 5th kind of embodiment except that above-mentioned embodiment.That is: combine Figure 10 and Figure 11, each anti-skid anchor joint 4 is one section taper cartridge type nut, and taper cartridge type nut is through being threaded on the bolt body 1.Above-mentioned bolt body comprises the multistage body of rod, and the same taper cartridge type of adjacent a pair of body of rod precession nut docks.
Anti-skid anchor joint in the utility model also has the 6th kind of embodiment except that above-mentioned embodiment.That is: combine Figure 12 and Figure 13, each anti-skid anchor joint 4 is one section taper cartridge type nut, and taper cartridge type nut is through being threaded on the bolt body 1.
The above; Be merely the preferable specific embodiment of the utility model; But the protection domain of the utility model is not limited thereto; Any technician who is familiar with the present technique field is in the technical scope that the utility model discloses, and the variation that can expect easily or replacement all should be encompassed within the protection domain of the utility model.

Claims (10)

1. a bamboo joint type high strength anchor bar comprises full length fastening formula bolt body, pallet and nut, it is characterized in that: said bolt body is provided with several anti-skid anchor joints.
2. bamboo joint type high strength anchor bar according to claim 1; It is characterized in that: said each anti-skid anchor joint is similar to bullet; This bullet is made up of the bullet piecemeal of 3 to 6 equiblibrium mass distributions on the bolt body circumference, leaves the gap between the adjacent a pair of bullet piecemeal.
3. bamboo joint type high strength anchor bar according to claim 2 is characterized in that: said each bullet individual cast, weld or be bonded on the bolt body.
4. bamboo joint type high strength anchor bar according to claim 1 is characterized in that: said each anti-skid anchor joint comprises small one and large one two flange, and the card of each flange is provided with open-work; Said each flange is through being threaded on the bolt body.
5. bamboo joint type high strength anchor bar according to claim 1; It is characterized in that: said each anti-skid anchor joint comprises one in front and one in back two collars; Between two collars, be provided with several V shape poles, on the collar, the other end was fixed on the collar of back before an end of each V shape pole was fixed on; Said two collars are through being threaded on the bolt body.
6. bamboo joint type high strength anchor bar according to claim 1 is characterized in that: said each anti-skid anchor joint is one section half-cone cartridge type nut, and half-cone cartridge type nut is through mechanical stamping or be welded to connect on bolt body.
7. bamboo joint type high strength anchor bar according to claim 1 is characterized in that: said each anti-skid anchor joint is one section taper cartridge type nut, and taper cartridge type nut is through being threaded on the bolt body.
8. bamboo joint type high strength anchor bar according to claim 7 is characterized in that: said bolt body comprises the multistage body of rod, and the same taper cartridge type of adjacent a pair of body of rod precession nut docks.
9. bamboo joint type high strength anchor bar according to claim 1 is characterized in that: said bolt body is that the steel pipe that adopts solid indented bars or external surface to be provided with screw thread is processed.
10. bamboo joint type high strength anchor bar according to claim 1; It is characterized in that: the free end in said bolt body is provided with threaded joints; Pallet is fixed on the place, aperture of boring, and the free end of bolt body stretches out pallet, and nut is connected on the threaded joints of bolt body.
CN2011204590298U 2011-11-18 2011-11-18 Bamboo-joint type high-strength anchor rod Expired - Fee Related CN202338349U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011204590298U CN202338349U (en) 2011-11-18 2011-11-18 Bamboo-joint type high-strength anchor rod

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011204590298U CN202338349U (en) 2011-11-18 2011-11-18 Bamboo-joint type high-strength anchor rod

Publications (1)

Publication Number Publication Date
CN202338349U true CN202338349U (en) 2012-07-18

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011204590298U Expired - Fee Related CN202338349U (en) 2011-11-18 2011-11-18 Bamboo-joint type high-strength anchor rod

Country Status (1)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102400699A (en) * 2011-11-18 2012-04-04 山东科技大学 Bamboo-joint type high-strength anchor rod
CN102865088A (en) * 2012-09-12 2013-01-09 山东科技大学 Tension and compression coupling type high-strength and high-deformation anchor rod and method for using same
CN103114865A (en) * 2013-03-08 2013-05-22 安徽省煤炭科学研究院 Vane-type stirring anchor cable
CN103696791A (en) * 2014-01-16 2014-04-02 湖南科技大学 Anchoring energy-absorbing anchor rod device for controlling deep rock mass

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102400699A (en) * 2011-11-18 2012-04-04 山东科技大学 Bamboo-joint type high-strength anchor rod
CN102865088A (en) * 2012-09-12 2013-01-09 山东科技大学 Tension and compression coupling type high-strength and high-deformation anchor rod and method for using same
CN102865088B (en) * 2012-09-12 2015-04-08 山东科技大学 Tension and compression coupling type high-strength and high-deformation anchor rod and method for using same
CN103114865A (en) * 2013-03-08 2013-05-22 安徽省煤炭科学研究院 Vane-type stirring anchor cable
CN103696791A (en) * 2014-01-16 2014-04-02 湖南科技大学 Anchoring energy-absorbing anchor rod device for controlling deep rock mass
CN103696791B (en) * 2014-01-16 2016-06-29 湖南科技大学 A kind of anchoring energy-absorption anchor rod device for controlling deep rock mass

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120718

Termination date: 20151118

EXPY Termination of patent right or utility model