CN205370612U - Cavity secondary slip casting stock - Google Patents
Cavity secondary slip casting stock Download PDFInfo
- Publication number
- CN205370612U CN205370612U CN201620002888.7U CN201620002888U CN205370612U CN 205370612 U CN205370612 U CN 205370612U CN 201620002888 U CN201620002888 U CN 201620002888U CN 205370612 U CN205370612 U CN 205370612U
- Authority
- CN
- China
- Prior art keywords
- slip casting
- stock
- bar
- anchor pole
- pole
- 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
Links
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- Piles And Underground Anchors (AREA)
Abstract
The utility model relates to a novel cavity secondary slip casting stock, this kind of stock mainly used grow the steady job of country rock to the crack. The utility model is used for solving the fixed effect of slip casting and secondary slip casting stock no. 1, the secondary slip casting of current slip casting stock and distinguishing unsatisfactory shortcoming, the country rock of growing to the crack plays the growth in better fixed action, effectual prevention country rock crack. For realizing the task, the utility model discloses a following technical scheme: the pole combined together with outer pole in the ordinary cavity slip casting stock that will have now was reformed transform, interior pole and outer for pole bolted connection, and the junction is equipped with a plurality of injected holes. In addition, the stock tip is equipped with rubber protection pad, plays the pressure effect that lets during surrouding rock deformation, and the protection stock is not by rupture and inner structure's integrality.
Description
Technical field
This utility model relates to underworkings supporting field.
Technical background
In the country rock of cranny development during digging laneway, the breaking deformation of rock and manifesting so that roadway support is comparatively difficult of mine pressure.And for such tunnel, usually adopt grouted anchor bar that country rock is safeguarded, by the support of anchor pole and be packed into the serosity of rock fracture and improve the stability of country rock.But currently used grouted anchor bar technology imperfection, also exist and rock fracture can not be carried out effective slip casting, and when crack is grown again, the slurry plugs being injected into because of former injected hole can not the problem of slip casting again.Therefore, for above-mentioned situation, it is necessary for designing a kind of novel grouted anchor bar.
Utility model content
This utility model is little for solving current grouted anchor bar slip casting area, the shortcomings such as secondary grouting is undesirable, it is provided that a kind of novel hollow secondary grouting anchor pole.
For realizing above-mentioned task, the technical scheme that this utility model provides is: designing a novel hollow secondary grouting anchor pole, this anchor rod body is made up of interior bar and outer bar two parts, is threaded connection between inside and outside bar.
Described outer bar comprises two groups of casting heads altogether, and one group is positioned at outer boom end, for first slip casting；Another group is positioned at screw thread place, for secondary grouting.Multiple injected holes are also greatly improved slip casting ability and the range of grouting of anchor pole.
Additionally, the other end design of bar outside has and allows the rubber fender of pressure effect, anchor pole can be protected to be not broken when country rock carrys out compressive strain and the integrity of internal structure.
Accompanying drawing explanation
Fig. 1 is generalized section of the present utility model.
Detailed description of the invention
As it can be seen, this utility model includes pallet 1, nut 2, interior bar 3, outer bar 4, injected hole 5,6, screw thread 7, pulp-inlet pipe 8, non-return valve 9, resin explosive roll baffle plate 10, termination point of anchor rod 11, reverse wedge 12, rubber fender 13, simple in construction.
During first slip casting, anchor pole being put into wall rock drill-hole, serosity is sprayed by injected hole 6 by bar inner chamber, fills up the crack grown in country rock, improves the stability of country rock, and first time slip casting is complete.Being screwed out from outer bar 4 by screw thread 7 by interior bar 3, carry out secondary grouting, interior bar 3 is not destroyed, and can match recycling with multiple outer bars, has saved cost.
When wall-rock crack again grow or first slip casting effect is undesirable need secondary grouting time, due to injected hole 5 when first slip casting under the protection of interior bar 3 not by slurry plugs, now remain in that unobstructed, therefore secondary grouting can be carried out either directly through hole 5.
From the foregoing, this utility model effectively avoids the conflict between first slip casting and secondary grouting, improve slip casting effect, can effectively fill up the crack of country rock and the secondary development for crack has good reply, be greatly reinforced the stability in the large of country rock.In addition anchor pole end is provided with rubber fender, and country rock plays the pressure effect that allows when carrying out compressive strain, anchor pole can be protected to be not broken and the integrity of internal structure.
Claims (2)
1. a hollow secondary grouting anchor pole, is transformed into interior bar 3 and outer bar 4 two parts composition by existing ordinary hollow grouted anchor bar, and interior bar and outer bar screw thread 7 connect, and junction is provided with multiple injected hole 5；It addition, anchor pole end is provided with rubber fender 13, playing the pressure effect that allows during surrouding rock deformation, protection anchor pole is not broken and the integrity of internal structure.
2. a kind of hollow secondary grouting anchor pole according to claim 1, is characterized in that: anchor pole comprises interior bar 3 and outer bar 4, and the threaded connection place of interior bar and outer bar is provided with some slip casting apertures 5, and hole diameter is 9mm；Interior bar can be screwed off after once grouting and carry out secondary grouting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620002888.7U CN205370612U (en) | 2016-01-05 | 2016-01-05 | Cavity secondary slip casting stock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620002888.7U CN205370612U (en) | 2016-01-05 | 2016-01-05 | Cavity secondary slip casting stock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205370612U true CN205370612U (en) | 2016-07-06 |
Family
ID=56274996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620002888.7U Expired - Fee Related CN205370612U (en) | 2016-01-05 | 2016-01-05 | Cavity secondary slip casting stock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205370612U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109915186A (en) * | 2019-03-29 | 2019-06-21 | 攀枝花学院 | A kind of novel drilling anchor infuses the mounting process of integrated resin anchor |
-
2016
- 2016-01-05 CN CN201620002888.7U patent/CN205370612U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109915186A (en) * | 2019-03-29 | 2019-06-21 | 攀枝花学院 | A kind of novel drilling anchor infuses the mounting process of integrated resin anchor |
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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: 20160706 Termination date: 20170105 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |