CN202810881U - Novel expandable type yielding prestress grouting anchor cable - Google Patents
Novel expandable type yielding prestress grouting anchor cable Download PDFInfo
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- CN202810881U CN202810881U CN 201220527332 CN201220527332U CN202810881U CN 202810881 U CN202810881 U CN 202810881U CN 201220527332 CN201220527332 CN 201220527332 CN 201220527332 U CN201220527332 U CN 201220527332U CN 202810881 U CN202810881 U CN 202810881U
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- anchor cable
- grouting
- conical head
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- anchor
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Abstract
The utility model discloses a novel expandable type yielding prestress grouting anchor cable. An anchor cable body further comprises a hollow rod connected at the bottom end of an anchor cable body hole, wherein the hollow rod is provided with a conical head. A grouting core pipe extends into the hollow rod, and a grouting hole is formed in the conical head. An expandable pipe is sleeved on the anchor cable body, and the diameter of the expandable pipe is smaller than that of the conical head, an opened groove is arranged in the bottom end of the expandable pipe, and the length of the expandable pipe meets the demand that one end of the expandable pipe is abutted against the conical head, and the other end of the expandable pipe is abutted against a locking device. A tray is composed of two buckled tray bodies in an overlapping mode, one of the tray bodies is a saucer-shaped tray body with yielding effect, and the other tray body is a horn-head-shaped tray body used for blocking a hole. The novel expandable type yielding prestress grouting anchor cable has the effect of primary anchor force and yielding, and has good supporting and protecting effect when great deformation happens on a surrounding rock. In addition, the novel expandable type yielding prestress grouting anchor cable has the effect of reinforcing crack growth and loosening surrounding rock by grouting, and buffering and releasing some pressure when the pressure is large.
Description
Technical field
The utility model relate to that mine working, roads and tunnels, water conservancy culvert support engineering use grouting cable anchor.
Background technology
At present, various anchor cables have been used in large quantities in engineerings such as mine timbering, roads and tunnels supporting, the supporting of water conservancy culvert, massif reinforcing, building pile foundation reinforcings, country rock on every side being played reinforcement effect, thereby improve the intensity that country rock self bears pressure, is a kind of support form of active.
But exist in the loose situation of crack and rock at country rock, depend merely on the single anchorage effect of anchor cable and also do not reach country rock is combined into one effectively, improve the purpose of country rock self bearing pressure.Therefore on the market various grouting cable anchors have appearred, grouting cable anchor is comprised of anchor cable body, pallet and locking device, the anchor cable body is for carrying the hollow structure of slip casting core pipe, adopt reverse grouting mode, anchor cable body opening bottom is with mixing resin explosive roll end anchor, slurries can be injected unconsolidated rock by slip casting core pipe, thereby the anchor cable body is combined into one with country rock effectively, improve the purpose of country rock carrying self pressure.But this grouting cable anchor is without first anchor-hold, just produces anchorage effect after only having slurries to be solidified to some strength; And pallet belongs to plate shaped, when surrouding rock deformation, can not play the pressure effect that allows, although also allow at present the pressure pallet, such as butterfly-shaped and hemispherical pallet, but this allowing presses pallet can not play the stifled slurry of grouting plug, slurry overflows from the aperture easily during slip casting, causes grouting pressure not enough, does not reach slip casting effect.
The utility model content
It is low that the purpose of this utility model provides a kind of cost, easy for installation, both possessed first anchor-hold, and the expansion type that has again grouting and reinforcing cranny development and loose wall rock effect allows presses the prestressing force grouting cable anchor.
Technical solution adopted in the utility model is: a kind of expansion type allows presses the prestressing force grouting cable anchor, it comprises anchor cable body, pallet and locking device, the anchor cable body is the hollow structure that carries slip casting core pipe, it is characterized in that, described anchor cable body also comprises the hollow lever with conical head that is connected to anchor cable body opening bottom, slip casting core pipe extend in the hollow lever, is processed with injected hole on the conical head; Put a diameter on the anchor cable body less than the expansion tube of conical head diameter, the bottom of expansion tube is provided with open slot, and the length of expansion tube should satisfy that an end withstands on the conical head, the other end withstands on the locking device; Described pallet is comprised of two overlapping disk bodies that interlock, and one of them disk body has been to allow the dish-shaped shape disk body of pressure effect, and another disk body is be used to the loudspeaker head disk body that is blocked on the aperture.
Installation and application of the present utility model is, at first beats the petrosal foramen consistent with the expansion tube external diameter at country rock, expansion tube is enclosed within on the anchor cable body puts in the petrosal foramen, loads onto pallet, tightens locking device, and during tray, dish-shaped shape disk body is near locking device; After anchor cable is installed, the grouting equipment of special use is connected on the Grouting Pipe exposed junction, wall-rock crack is carried out slip casting, slurries are permeated to wall-rock crack.
Operating principle of the present utility model is: locking device and pallet, expansion tube are in contact with one another in tightening the process of locking device, the anchor cable body is applied pulling force, expansion tube produces the axial compression effect, expansion tube is subjected to the impact of anchor cable body conical head, the open slot distending, be squeezed on the hole wall, increased the frictional force with hole wall, make integral body have certain anchorage effect; Pallet is subjected to the effect of locking device axial compression simultaneously, butterfly shape disk body is compressed, whole cable bolting is worked the pressure effect that allows, loudspeaker head disk body is clamp-oned in the petrosal foramen, block petrosal foramen, play stifled slurry plug, simultaneously when butterfly shape disk body allow be pressed onto certain limit after, loudspeaker head disk body continues to allow pressure, plays to continue to allow the pressure effect.
Good effect of the present utility model is, it is low to have cost, characteristics easy for installation, both possessed first anchor-hold and allowed the pressure effect, when appearring in country rock, large deformation still has preferably supporting effect, the effect that has again grouting and reinforcing cranny development and loose wall rock can also cushion a release part when pressure is large.Pallet has secondary and continues to allow the pressure effect, and it is bad to prevent that anchor pole from drawing too early, can also play the effect of the stifled slurry of grouting plug, need to add in addition the trouble of grouting plug when having saved existing anchor rope grouting.
Description of drawings
Fig. 1 is front view of the present utility model;
Fig. 2 is the tray configurations enlarged drawing.
Marginal data: 1-locking device, 2-dish shape disk body, 3-loudspeaker head disk body, 4-anchor cable body, 5-expansion tube, 6-slip casting core pipe, 7-hollow lever, 8-open slot, 9-injected hole.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described in further details.
As shown in Figure 1, a kind of Novel expansion allows presses the prestressing force grouting cable anchor, it comprises anchor cable body 4, pallet and locking device, anchor cable body 4 is the hollow structures that carry slip casting core pipe 6, described anchor cable body 4 also comprises the hollow lever 7 with conical head that is connected to bottom, anchor cable body 4 hole, slip casting core pipe 6 extend in the hollow lever 7, is processed with injected hole 9 on the conical head; Put a diameter on the anchor cable body 4 less than the expansion tube 5 of conical head diameter, the bottom of expansion tube 5 is provided with open slot 8, and the length of expansion tube 5 should satisfy that an end withstands on the conical head, the other end withstands on the locking device 1; Described pallet is comprised of two overlapping disk bodies that interlock, and one of them disk body has been to allow the dish-shaped shape disk body 2 of pressure effect, and another disk body is be used to the loudspeaker head disk body 3 that is blocked on the aperture.
During use, at first beat the petrosal foramen consistent with expansion tube 5 external diameters at country rock, expansion tube 5 is enclosed within on the anchor cable body 4 puts in the petrosal foramen, load onto pallet, tighten locking device 1, during tray, dish-shaped shape disk body 2 is near locking device 1; Expansion tube 5 is subjected to the impact of the anchor cable body of rod 7 conical heads in the process that tightens locking device 1, and open slot 8 distendings are squeezed on the hole wall; After anchor cable is installed, the grouting equipment of special use is connected on slip casting core pipe 6 exposed junctions, wall-rock crack is carried out slip casting, slurries are permeated to wall-rock crack.
Operating principle is, locking device 1 is in contact with one another with pallet, expansion tube 5 in the process that tightens locking device 1, anchor cable body 4 is applied pulling force, expansion tube 5 produces the axial compression effect, expansion tube 5 is subjected to the impact of anchor cable body 4 conical heads, and open slot 8 distendings are squeezed on the hole wall, increased the frictional force with hole wall, made integral body have certain anchorage effect; Pallet is subjected to locking device 1 axial compression effect simultaneously, butterfly shape disk body 2 is compressed, whole cable bolting is worked the pressure effect that allows, loudspeaker head disk body 3 is clamp-oned in the petrosal foramen, block petrosal foramen, play stifled slurry plug, simultaneously when butterfly shape disk body 2 allow be pressed onto certain limit after, loudspeaker head disk body 3 continues to allow pressure, plays to continue to allow the pressure effect.
Claims (1)
1. a Novel expansion allows and presses the prestressing force grouting cable anchor, it comprises anchor cable body, pallet and locking device, the anchor cable body is the hollow structure that carries slip casting core pipe, it is characterized in that, described anchor cable body also comprises the hollow lever with conical head that is connected to anchor cable body opening bottom, slip casting core pipe extend in the hollow lever, is processed with injected hole on the conical head; Put a diameter on the anchor cable body less than the expansion tube of conical head diameter, the bottom of expansion tube is provided with open slot, and the length of expansion tube should satisfy that an end withstands on the conical head, the other end withstands on the locking device; Described pallet is comprised of two overlapping disk bodies that interlock, and one of them disk body has been to allow the dish-shaped shape disk body of pressure effect, and another disk body is be used to the loudspeaker head disk body that is blocked on the aperture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220527332 CN202810881U (en) | 2012-09-26 | 2012-09-26 | Novel expandable type yielding prestress grouting anchor cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220527332 CN202810881U (en) | 2012-09-26 | 2012-09-26 | Novel expandable type yielding prestress grouting anchor cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202810881U true CN202810881U (en) | 2013-03-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220527332 Expired - Fee Related CN202810881U (en) | 2012-09-26 | 2012-09-26 | Novel expandable type yielding prestress grouting anchor cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202810881U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102877868A (en) * | 2012-09-26 | 2013-01-16 | 山东科技大学 | Novel expansion-type yielding prestress grouting anchor rope and using method thereof |
| CN103244161A (en) * | 2013-05-23 | 2013-08-14 | 湖南科技大学 | Yielding type backing plate device |
| CN103670469A (en) * | 2013-12-12 | 2014-03-26 | 辽宁工程技术大学 | Expansion grouting anchor rod |
| CN104847389A (en) * | 2015-05-13 | 2015-08-19 | 河南理工大学 | Barrel type hollow grouting anchor rod and using method |
| CN106498929A (en) * | 2016-12-05 | 2017-03-15 | 北京鸿锐嘉科技发展有限公司 | Grouting Pipe and reinforcement of concrete defect method |
| CN107514272A (en) * | 2016-06-16 | 2017-12-26 | 中国矿业大学 | A kind of anchor pole lasso trick for supporting cross-bedding development country rock |
| CN108678788A (en) * | 2018-04-18 | 2018-10-19 | 山东大学 | A kind of body of rod piston increases resistance pressure-relieving achor bar and construction method |
| CN111911188A (en) * | 2020-09-04 | 2020-11-10 | 湖南科技大学 | Installation method of high-pressure tunnel pressure relief device |
| CN114635417A (en) * | 2022-03-28 | 2022-06-17 | 北京中岩大地科技股份有限公司 | End expansion type anchor rod structure and construction method |
-
2012
- 2012-09-26 CN CN 201220527332 patent/CN202810881U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102877868A (en) * | 2012-09-26 | 2013-01-16 | 山东科技大学 | Novel expansion-type yielding prestress grouting anchor rope and using method thereof |
| CN102877868B (en) * | 2012-09-26 | 2015-06-17 | 山东科技大学 | Novel expansion-type yielding prestress grouting anchor rope and using method thereof |
| CN103244161A (en) * | 2013-05-23 | 2013-08-14 | 湖南科技大学 | Yielding type backing plate device |
| CN103670469A (en) * | 2013-12-12 | 2014-03-26 | 辽宁工程技术大学 | Expansion grouting anchor rod |
| CN103670469B (en) * | 2013-12-12 | 2016-08-17 | 辽宁工程技术大学 | A kind of expansion slip casting anchor stock |
| CN104847389A (en) * | 2015-05-13 | 2015-08-19 | 河南理工大学 | Barrel type hollow grouting anchor rod and using method |
| CN107514272A (en) * | 2016-06-16 | 2017-12-26 | 中国矿业大学 | A kind of anchor pole lasso trick for supporting cross-bedding development country rock |
| CN106498929A (en) * | 2016-12-05 | 2017-03-15 | 北京鸿锐嘉科技发展有限公司 | Grouting Pipe and reinforcement of concrete defect method |
| CN106498929B (en) * | 2016-12-05 | 2018-12-21 | 北京鸿锐嘉科技发展有限公司 | Grouting Pipe and reinforcement of concrete defect method |
| CN108678788A (en) * | 2018-04-18 | 2018-10-19 | 山东大学 | A kind of body of rod piston increases resistance pressure-relieving achor bar and construction method |
| CN111911188A (en) * | 2020-09-04 | 2020-11-10 | 湖南科技大学 | Installation method of high-pressure tunnel pressure relief device |
| CN114635417A (en) * | 2022-03-28 | 2022-06-17 | 北京中岩大地科技股份有限公司 | End expansion type anchor rod structure and construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20130320 Termination date: 20150926 |
|
| EXPY | Termination of patent right or utility model |