CN2414193Y - End grappled type anchor rod - Google Patents
End grappled type anchor rod Download PDFInfo
- Publication number
- CN2414193Y CN2414193Y CN 00219465 CN00219465U CN2414193Y CN 2414193 Y CN2414193 Y CN 2414193Y CN 00219465 CN00219465 CN 00219465 CN 00219465 U CN00219465 U CN 00219465U CN 2414193 Y CN2414193 Y CN 2414193Y
- Authority
- CN
- China
- Prior art keywords
- utility
- model
- anchor
- anchor rod
- anchoring piece
- 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
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- Piles And Underground Anchors (AREA)
Abstract
The utility model relates to an end anchored type anchor-pouring rod, the end of a pipe rod is provided with an anchoring element on the basis of the existing anchor-pouring rod, grouting holes are alternatively arranged on the pipe wall of the intermediate section of the pipe rod in spiral of 120 DEG. The utility model overcomes the defects that the existing anchor-pouring rods can be used as a grouting pipe only in maintenance periods, and the grouting effect is poor, so as to lead the utility model to be a support component which can anchor and pour; the utility model can realize the soft rock support pattern of completing anchor (excavation periods) and pouring (recovery periods) by using the same anchor-pouring rod, so that the cost of multilayer support and repair can be saved and support cost can be reduced, and simultaneously, the utility model has the advantages of good grouting effect, even slurry diffusion, simple structure, easy machining, and convenient installation and operation. The utility model can be widely used for support components of roadways, tunnels, and dams.
Description
The utility model relates to a kind of roadway support member, exactly is a kind of end anchorage formula anchor rod.
At present, the anchor rod that generally uses in the road maintenance phase because before slip casting not, its anchored force is little, does not possess the anchoring support ability of roadway excavation phase, thereby can not use in the roadway excavation phase, can only be used as Grouting Pipe in the maintenance interval and use; In addition, owing to the forward and backward parallel pipe rod end head tube wall place that designs alternately at anchor rod of injected hole, make that promptly when slip casting, shutoff length is long, slurries are difficult to arrive the country rock surface, are unfavorable for the even diffusion of slurries again, have weakened grouting consolidation effect.
The purpose of this utility model be to provide a kind of improved, can supporting use and the even end anchorage formula anchor rod of slip casting in the roadway excavation phase.
Technical solution of the present utility model is: on the basis of existing anchor rod, in the end of pipe bar anchoring piece is set, 120 ° of injected holes that are crisscross arranged of spiral on the tube wall in pipe bar stage casing.
Below in conjunction with drawings and Examples the utility model is illustrated.
Fig. 1 is the utility model structural representation;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is the screw-thread steel anchoring piece;
Fig. 4 is a cross compartment anchoring piece;
Fig. 5 is the anchoring piece of falling the wedge-type;
Fig. 6 flattens the formula anchoring piece for the anchor rod end.
As seen from Figure 1, this anchor rod is made up of pipe bar 1, nut 2, pallet 3, shelves ring 4 and anchoring piece 5.Pipe bar 1 adopts steel pipe, and its ab section is a thread segment, fixedly tightens pallet 3 for nut 2, compresses the sealing of hole thing and gives anchor rod and give stress; The bc section adopts the conventional cement mortar sealing for sealing ends the slurry section; Shelves ring 4 and 1 welding of pipe bar play the baffle seal thing and come off and reduce slurries to sealer pressure; The cd section is the slip casting section, is drilled with injected hole 6 (see figure 2)s across by 120 ° on spiral on its tube wall; The de section is an anchoring section, and anchoring piece 5 adopts spiral bar, and spiral bar is welded on the end of pipe bar.
Anchoring piece 5 also can adopt the screw-thread steel (see figure 3), also can adopt compartment anchoring piece (see figure 4), also can adopt the anchoring piece of falling wedge-type (see figure 5), also can directly the pipe rod end head of anchor rod be flattened as the anchoring piece (see figure 6).
During use, anchoring agent cartridge bag, anchor rods such as resin are successively inserted in the boring of accomplishing fluently on the rock in the tunnel in advance, squeeze broken anchoring agent cartridge bag, treat that the anchoring agent solidifies after the anchor rod anchoring, between pallet 3 and baffle ring 4, fill in cement mortar and tamping sealing of hole.At last, by port slip casting in pipe bar 1 of pipe bar 1, slurries form fixing collar, thereby the scope at the bottom of making country rock from the excavation face to the hole can be reinforced effectively all from the diffusion all around of injected hole 6 outside pipe bar 1 again.
This shows, in the excavation phase in tunnel, promptly adopt the utility model to replace existing anchor pole, can anchor, can annotate again, can two combine into one with the support units of different construction periods, realized finishing the soft rock supporting mode of first anchor (excavation phase), back notes (reparation phase) with same anchor rod, thereby save the multilayer supporting and reprocess expense, greatly reduce the supporting expense in tunnel; And owing to be first anchoring, give country rock, make the interior surrouding rock stress of anchor rod length range encircle to form self-supporting, country rock is had the active support effect to uniform development with prestressing force; Simultaneously, because 120 ° on injected hole spiral is provided with at interval, make diffuse source be distributed in ad-hoc location, the slurries diffusion evenly, and is effective, and the scope at the bottom of making country rock from the excavation face to the hole all can effectively be reinforced.In addition, the utility model is simple in structure, and easily processing is installed and used easyly, can be widely used in the support unit of tunnel, tunnel and dykes and dams.
Claims (6)
1, a kind of end anchorage formula anchor rod, comprise pipe bar (1), nut (2), pallet (3) and shelves rings (4), it is characterized in that: the end of described pipe bar (1) is provided with anchoring piece (5), 120 ° of injected holes that are crisscross arranged of spiral (6) on the tube wall in pipe bar (1) stage casing.
2, a kind of anchor rod according to claim 1 is characterized in that: described anchoring piece (5) is a spiral bar.
3, a kind of anchor rod according to claim 1 is characterized in that: described anchoring piece (5) is a screw-thread steel.
4, a kind of anchor rod according to claim 1 is characterized in that: described anchoring piece (5) is a cross compartment anchoring piece.
5, a kind of anchor rod according to claim 1 is characterized in that: described anchoring piece (5) is the anchoring piece of falling the wedge-type.
6, a kind of anchor rod according to claim 1 is characterized in that: described anchoring piece (5) is flattened the formula anchoring piece for pipe bar (1) termination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00219465 CN2414193Y (en) | 2000-02-25 | 2000-02-25 | End grappled type anchor rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00219465 CN2414193Y (en) | 2000-02-25 | 2000-02-25 | End grappled type anchor rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2414193Y true CN2414193Y (en) | 2001-01-10 |
Family
ID=33584650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00219465 Expired - Fee Related CN2414193Y (en) | 2000-02-25 | 2000-02-25 | End grappled type anchor rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2414193Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104179174A (en) * | 2014-08-13 | 2014-12-03 | 山东科技大学 | Porous grouted pipe special-shaped pile and pile-forming method |
| CN108222022A (en) * | 2018-03-02 | 2018-06-29 | 大连理工大学 | A kind of tubular type Soil-Nailing Wall Structure and its construction method |
| CN111608710A (en) * | 2020-06-09 | 2020-09-01 | 河海大学 | Full-length hollow drainage resistance-increasing type yielding anchor rod |
-
2000
- 2000-02-25 CN CN 00219465 patent/CN2414193Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104179174A (en) * | 2014-08-13 | 2014-12-03 | 山东科技大学 | Porous grouted pipe special-shaped pile and pile-forming method |
| CN108222022A (en) * | 2018-03-02 | 2018-06-29 | 大连理工大学 | A kind of tubular type Soil-Nailing Wall Structure and its construction method |
| CN111608710A (en) * | 2020-06-09 | 2020-09-01 | 河海大学 | Full-length hollow drainage resistance-increasing type yielding anchor rod |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |