CN207526513U - The controllable formula that expands increases resistance anchor pole - Google Patents
The controllable formula that expands increases resistance anchor pole Download PDFInfo
- Publication number
- CN207526513U CN207526513U CN201721602814.8U CN201721602814U CN207526513U CN 207526513 U CN207526513 U CN 207526513U CN 201721602814 U CN201721602814 U CN 201721602814U CN 207526513 U CN207526513 U CN 207526513U
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- CN
- China
- Prior art keywords
- resistance
- groove
- bolt
- anchor pole
- anchor
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- 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
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Abstract
The utility model discloses a kind of controllable formulas that expands to increase resistance anchor pole, mainly includes the cavity body of rod, rotation resistance absorber, increases resistance piece, groove bolt, high-strength nut, rotating bar, capping and plain nut；Cylindrical elongated cavity is provided with inside anchor bar body；There is increasing resistance piece in rock bolt head, increasing resistance piece is made using high-strength elastic steel, and in ellipsoid, lower section is connect with anchor rod body, and top is connected with plain nut；Resistance absorber is equipped at the position that bolt head is contacted with anchor pole, resistance absorber is made of certain thickness and steel disc with groove and the steel ball placed in a groove；The groove of hexagon is provided at the top of bolt, the protrusion of six cylinders is equipped at the top of rotating bar；It is equipped with pallet, high-strength nut and capping successively in rock bolt head.This controllable expansion formula, which increases resistance anchor pole, can significantly increase the anchor force of anchor pole, and the contained deformation energy for increasing resistance piece can effectively solve the problems, such as the anchoring load losses of loose Rock And Soil transversely deforming.
Description
Technical field
The utility model belongs to Anchor in Geotechnical Engineering supporting field, and in particular to a kind of controllable formula that expands increases resistance anchor pole.
Background technology
In underground engineering, mining engineering, foundation pit and slope project, to prevent stratum deformation or unstability from jeopardizing safety,
It needs to reinforce stratum, it is using suspension roof support to reinforce main mode.Suspension roof support can give full play to Rock And Soil itself
Bearing capacity, be a kind of to disturb that small, speed of application is fast, safe and reliable, economical rationality reinforcement technique to protolith.
Present roadway surrounding rock is mostly weak stratum, is also easy to produce moderate finite deformation, and have more the now soft soil body, supporting in side slope
The problems such as difficulty is big becomes increasingly conspicuous.Conventional anchor is all made as prismatic shapes mostly, and anchor force is mainly by anchoring body and ground
Body provides, and the value is smaller under normal circumstances, especially weak stratum and soft clay area, since geological conditions itself is poor, anchoring
Effect is also undesirable.And now anchor pole anchor head mostly using fixed anchoring, can not according to country rock or soil deformation and into
Row changes, once Rock And Soil deformation is excessive, easily strongly reduces anchor force, damages.
The research core content of anchorage technology is improved in terms of anchor structure and construction technology both at home and abroad at present, with
Enhance anchoring effect, but the method for many enhancing anchoring effects not only complex procedures but also cost is higher.
Such as：Chinese utility model patent 201520163494.5 discloses a kind of automatic expansion anchoring tooth post anchor pole, leads to
It crosses and the body of rod is screwed in into anchor head depths, pointed cone head is made tooth post to be made to eject insertion rock mass outward, so as to which anchor pole be consolidated outwardly against tooth post
It is scheduled in rock mass.But the major anchorage component of anchor pole and the body of rod are not Construction integration, this makes to be easily destroyed at anchor head, and this
Anchor structure slightly complicated.
Chinese utility model patent 201520989710.1 discloses a kind of steel hinge and increases resistance anchor pole, which can drawn
Increase the tension area of anchor pole when stretching, steel hinge increases order of contact, so as to achieve the effect that increase resistance.But when horizontal stroke occurs for Rock And Soil
To during deformation, the anchor force of this anchor pole will significantly decline.
Utility model content
In order to overcome the above-mentioned deficiencies of the prior art, the utility model provides a kind of simple in structure, easy to operate controllable
Expansion formula increases resistance anchor pole.
The utility model increases resistance anchor pole for the controllable formula that expands, and is configured to：By the cavity body of rod, rotation resistance absorber, increase resistance piece,
Groove bolt, high-strength nut, rotating bar, capping and plain nut composition, which is characterized in that be provided with inside the cavity body of rod
Cylindrical elongated cavity；The increasing resistance piece is located on the bolt body of rod, and upper end is connect with plain bolt, and lower end connects with the cavity body of rod
It connects；The rotation resistance absorber is located at the top of groove bolt between cavity post；The rotation club head is equipped with six
The protrusion of cylinder, bolt head setting hexagonal indentations；The capping is arranged on end of anchor rod.
The rotation resistance absorber includes the reeded steel disc of certain thickness band and steel ball, steel ball are put into groove；It is inserted into
Resistance absorber is rotated after rotating bar to be compacted, and the steel ball in resistance absorber is rotated in turning groove bolt with rolling, can be incited somebody to action straight
Contact becomes being in rolling contact, and effectively reduces frictional force.
The increasing resistance piece is the hollow ellipsoids made using high-strength elastic steel as material；Pass through rotating bar rotating gravure
Bolt is deformed increasing resistance piece, and the deformed outside for increasing resistance piece can be embedded in loose Rock And Soil, improve the anchor of anchor pole
Gu power；When transversely deforming occurs for rock mass or the soil body, increasing the deformation energy of resistance piece storage can make increasing resistance piece change to make therewith
Anchor force will not significantly decline, and in addition can control the change for increasing resistance piece by controlling groove bolt amount of spin according to engineering is practical
Shape amount.
The protrusion of six cylinders is equipped at the top of the rotating bar, the groove of hexagon, groove are provided at the top of groove bolt
Bore can be such that rotating bar closely agrees with groove bolt, convenient for the rotation of groove bolt slightly larger than six cylinders protrusion.
The capping is made of rubber material, can be to avoid the moisture after rotating bar is extracted and other corrosive substances
Into anchor bar body cavity so that body of rod corrosion and intensity decline.
Further, inside capping and cavity body of rod trailing exterior surface is designed with screw thread, when use, will can directly cover
Rotation installation, avoids capping from coming off in use.
The utility model controllably expand formula increase resistance anchor pole construction method be：
（1）First rotation resistance absorber is put into the cavity body of rod, is inserted into groove bolt, anchor will be anchored on increasing resistance piece
Club head；
（2）Using rotating bar slightly turning groove bolt, increasing resistance piece is made slightly to expand but no more than bolt diameter；
（3）Mounted anchor pole is inserted into the bolthole of Rock And Soil, mechanical rotary motion bar is used after reaching predetermined depth
Make increasing resistance piece expansion, increase anchor force, bolt precession amount can be selected according to actual conditions；
（4）Rotating bar is extracted, pallet and high-strength nut are installed in body of rod tail portion, rotation high-strength nut applies one to the body of rod
Determine prestressing force；
（5）In the capping of end of anchor rod installation rubber material.
The utility model controllably expand formula increase resistance anchor pole the advantages of be：
（1）Increasing resistance piece using high-strength elastic steel, its dilatating and deformable degree can be controlled by the precession amount of bolt,
In addition dilatating and deformable also stores certain elastic potential energy while anchor force is increased for itself, and the Rock And Soil at anchoring occurs
During transversely deforming, increase resistance piece inside elastic potential energy release changes correspondingly, so as to when anchor force be unlikely to significantly to decline.
（2）Resistance absorber is made of the reeded steel disc of certain thickness band and steel ball, wherein be that steel ball is put into groove,
Become being in rolling contact using that can will be in direct contact during rotating bar rotating bolt, frictional force can be effectively reduced.
（3）It after rotating bar is extracted, installs and covers in end of anchor rod, moisture and other corrosive substances is avoided to enter body of rod sky
Chamber, it is possible to prevente effectively from the corrosion inside the body of rod, the possibility of reduction body of rod corrosion and destruction.
（4）Anchor bar body carries cylindrical cavity, designs the use its purpose is to rotating bar, while can reduce anchor pole
The steel using amount that the body of rod makes.
Description of the drawings
Fig. 1 is completed structure chart for the utility model
Fig. 2 is the utility model using renderings
Fig. 3 is rotation resistance absorber sectional view
Marginal data：1- rotating bars；The 2- cavity bodies of rod；3- high-strength nuts；4- pallets；5- rotates resistance absorber；6- increases resistance piece；
7- groove bolts；8- nuts；9- is covered；51- steel discs；52- steel balls.
Specific embodiment
The utility model provides a kind of controllable formula that expands and increases resistance anchor pole, for make the purpose of this utility model, technical solution and
Effect is clearer, clear and definite, and specific embodiment of the present utility model is described in detail below in conjunction with attached drawing.
The controllable formula that expands of one kind as shown in Figure 1 increases resistance anchor pole mainly by rotating bar 1, the cavity body of rod 2, high-strength nut 3, support
Disk 4, rotation resistance absorber 5 increase resistance piece 6,9 composition of groove bolt 7, plain nut 8 and capping, which is characterized in that the cavity bar
Cylindrical elongated cavity is provided with inside body 2；The increasing resistance piece 6 is located on 7 body of rod of groove bolt, and upper end connects with plain nut 8
It connects, lower end is connect with the cavity body of rod 2；The rotation resistance absorber 5 is located between 7 top of groove bolt and 1 bottom of the cavity body of rod；
1 head of rotating bar is equipped with the protrusion of six cylinders, bolt head setting hexagonal indentations；The capping 9 is arranged on anchor
Bar tail end.
The rotation resistance absorber 5 includes the reeded steel disc 51 of certain thickness band and steel ball 52, steel ball 52 are put into groove
It is interior；Be inserted into rotating bar 1 after rotation resistance absorber 5 be compacted, in turning groove bolt 7 rotate resistance absorber 5 in steel ball 52 with
It rolls, can will be in direct contact and become being in rolling contact, and effectively reduce frictional force.
The increasing resistance piece 6 is the hollow ellipsoids made using high-strength elastic steel as material；It is rotated by rotating bar 1 recessed
Slot bolt 7 is deformed increasing resistance piece 6, and deformed resistance 6 outer edge of piece that increases can be embedded in loose Rock And Soil, improve anchor pole
Anchor force；When transversely deforming occurs for rock mass or the soil body, increasing the deformation energy that resistance piece 6 stores can be such that increasing resistance piece 6 changes therewith
So as to which anchor force be made significantly not decline, in addition can be increased according to engineering is practical by controlling 7 amount of spin of groove bolt to control
Hinder the deflection of piece 6.
The protrusion of six cylinders is equipped at 1 top of rotating bar, the groove of hexagon, groove port are provided at 7 top of groove bolt
Diameter can be such that rotating bar 1 closely agrees with groove bolt 7, convenient for the rotation of groove bolt 7 slightly larger than six cylinders protrusion.
The capping 9 is made of rubber material, can be to avoid the moisture after rotating bar is extracted and other corrosive goods
Matter enters anchor bar body cavity so that body of rod corrosion and intensity decline.
Further, it is designed with screw thread in 9 inside of capping and cavity body of rod trailing exterior surface, when use will can directly cover
9 rotation installations, avoid capping 9 from coming off in use.
The utility model controllably expand formula increase resistance anchor pole construction method be：
（1）First rotation resistance absorber 5 is put into the cavity body of rod, is inserted into groove bolt 7, will be determined increasing to hinder piece 6 and anchor
In rock bolt head；
（2）Using the slightly turning groove bolt 7 of rotating bar 1, increasing resistance piece 6 is made slightly to expand but no more than bolt diameter；
（3）Mounted anchor pole is inserted into the bolthole of Rock And Soil, mechanical rotary motion bar 1 is used after reaching predetermined depth
Increasing resistance piece 6 is expanded, increases anchor force, bolt precession amount can be selected according to actual conditions；
（4）Rotating bar 1 is extracted, pallet 4 and high-strength nut 3 are installed in body of rod tail portion, rotation high-strength nut 3 applies the body of rod
Add certain prestressing force；
（5）In the capping 9 of end of anchor rod installation rubber material.
Deformed anchor pole is as shown in Figure 2.
Claims (3)
1. a kind of controllable formula that expands increases resistance anchor pole, it is by the cavity body of rod, rotation resistance absorber, increases resistance piece, groove bolt, high-strength spiral shell
Mother, rotating bar, capping and plain nut composition, which is characterized in that cylindrical elongated cavity is provided with inside the cavity body of rod；Increase
Resistance piece is located on the bolt body of rod, and upper end is connect with plain bolt, and lower end is connect with the cavity body of rod；Rotation resistance absorber is located at groove spiral shell
At the top of bolt between cavity post；Rotate the protrusion that club head is equipped with six cylinders, bolt head setting hexagonal indentations；Institute
The anchor pole tail portion port stated is equipped with capping.
2. a kind of controllable formula that expands as described in claim 1 increases resistance anchor pole, which is characterized in that is provided with inside the anchor bar body
Cylindrical cavity, the diameter of hole are slightly larger than the diameter of rotating bar；Six cylinder protrusions are equipped at the top of the rotating bar, in spiral shell
Hexagonal indentations are provided at the top of bolt, groove size is slightly larger than six cylinders protrusion.
3. a kind of controllable formula that expands according to claim 1 increases resistance anchor pole, which is characterized in that the increasing resistance piece is high-strength
The hollow ellipsoids that elastic steel make；The resistance absorber is made of steel disc with groove and the steel ball placed in a groove；
The capping is made using rubber material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721602814.8U CN207526513U (en) | 2017-11-27 | 2017-11-27 | The controllable formula that expands increases resistance anchor pole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721602814.8U CN207526513U (en) | 2017-11-27 | 2017-11-27 | The controllable formula that expands increases resistance anchor pole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207526513U true CN207526513U (en) | 2018-06-22 |
Family
ID=62580279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721602814.8U Expired - Fee Related CN207526513U (en) | 2017-11-27 | 2017-11-27 | The controllable formula that expands increases resistance anchor pole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207526513U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110411643A (en) * | 2019-08-21 | 2019-11-05 | 中国矿业大学 | A kind of monitoring device and method of hollow grouting cable anchor slurry pressure |
| CN111847126A (en) * | 2020-07-15 | 2020-10-30 | 安徽友发包装科技有限公司 | Prevent female internal expander of rolling up deformation of sticky tape |
| CN112523208A (en) * | 2020-11-18 | 2021-03-19 | 重庆市二零五勘测设计有限公司 | Prestressed anchor rod and construction method thereof |
| CN113202500A (en) * | 2021-04-06 | 2021-08-03 | 淮北市平远软岩支护工程技术有限公司 | Initial pressure reduction and clearance support method and equipment based on rock burst roadway |
-
2017
- 2017-11-27 CN CN201721602814.8U patent/CN207526513U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110411643A (en) * | 2019-08-21 | 2019-11-05 | 中国矿业大学 | A kind of monitoring device and method of hollow grouting cable anchor slurry pressure |
| CN111847126A (en) * | 2020-07-15 | 2020-10-30 | 安徽友发包装科技有限公司 | Prevent female internal expander of rolling up deformation of sticky tape |
| CN112523208A (en) * | 2020-11-18 | 2021-03-19 | 重庆市二零五勘测设计有限公司 | Prestressed anchor rod and construction method thereof |
| CN113202500A (en) * | 2021-04-06 | 2021-08-03 | 淮北市平远软岩支护工程技术有限公司 | Initial pressure reduction and clearance support method and equipment based on rock burst roadway |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180622 Termination date: 20181127 |