CN2720118Y - Internal slurry-injection anchor rod of plastic expand housing external anchor - Google Patents
Internal slurry-injection anchor rod of plastic expand housing external anchor Download PDFInfo
- Publication number
- CN2720118Y CN2720118Y CN 200420070377 CN200420070377U CN2720118Y CN 2720118 Y CN2720118 Y CN 2720118Y CN 200420070377 CN200420070377 CN 200420070377 CN 200420070377 U CN200420070377 U CN 200420070377U CN 2720118 Y CN2720118 Y CN 2720118Y
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- China
- Prior art keywords
- anchor
- core
- slurry
- anchor rod
- grunt
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- Expired - Fee Related
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Abstract
The utility model relates to a device used for slurry injecting, strengthening or water blocking to peripheral surrounding rock in underground rock body engineering, in particular to an internal slurry-injection anchor rod of plastic expand housing external anchor which is used for slurry injecting, strengthening or water blocking to peripheral surrounding rock in underground rock body engineering such as a tunnel, a well bore, a laneway, a different chamber, etc. The internal slurry-injection anchor rod of plastic expand housing external anchor is composed of an anchor rod body 9, a locking nut 8, a butterfly shape tray 7, a wooden backing board 6 and a shield ring 1; a plurality of anchoring heads are movably sheathed outside the anchor rod body 9 inside a drill hole 10; the anchoring head comprises an anchor core 2; an expand housing is movably sheathed outside the anchor core 2; a separating rack is movably provided between the lower part of the expand housing 3 and the anchor core 2 of the next anchor head, and two or three wedge shape rubber sealing rings 5 are sheathed between the lower part of the expand housing 3 and the anchor core 2 of the next anchor head. The internal slurry-injection anchor rod of plastic expand housing external anchor has double functions of anchoring and slurry injecting, which is very favorable for optimizing construction technology; the final bolt locking force of the anchor rod can be greatly improved by the co-action of the plastic expand housing anchoring head and concretionary slurry liquid.
Description
Technical field
In the rock mass engineering project peripheral rock is carried out the device of slip casting, reinforcing or water blockoff under the utility model possession, particularly a kind of in the underground rock engineerings such as tunnel, pit shaft, tunnel and different chamber peripheral rock being carried out the plastic expansion casing outer anchor inner grunt formula grouted anchor bar of slip casting, reinforcing or water blockoff.
Technical background
At present, China is used for the underground rock engineering grouted anchor bar, and majority is made the body of rod with hollow steel tube, has injected hole on the body of rod, is welded with back-up ring in anchored end, and slip casting end machining screw connects with grouting pump.Shearing resistance after anchor-holding force of anchor bolt mainly solidifies by slurries provides.Main hollow rapid setting cement volume of slurries closing form or aperture stop grouting plug.Because the shearing resistance after anchored force is mainly solidified by slurries provides, so this kind anchor pole is not playing the anchoring effect before the slip casting; In addition, when slip casting is not full, have a strong impact on the anchored force of anchor pole.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned technical deficiency, and a kind of anchoring function that self has is provided, and the plastic expansion casing outer anchor inner grunt formula grouted anchor bar of higher anchored force just can be provided institute's supporting geotechnical engineering before slip casting.
The technical scheme that the utility model technical solution problem adopts is: a kind of plastic expansion casing outer anchor inner grunt formula grouted anchor bar of being made up of anchor rod body, locking nut, butterfly pallet, sheeting caps and back-up ring, be characterized in being set with several anchorage heads versatilely outside the anchor rod body in boring, it comprises that anchor core, anchor core are with bloated shell outward versatilely anchorage head; Between the anchor core upper end of bloated shell lower end and next anchorage head a space-stop rack and two, three wedge-shaped rubber sealing rings of suit are housed versatilely; The anchor core center of making is a circular hole, and the hole is an equal diameter, and the thin back taper in thick lower end, upper end is made in the outside; Bloated shell is made the lobe formula, and center hole is the thin reverse taper hole in thick lower end, upper end, and the outside is provided with V-arrangement zigzag line; Space-stop rack is provided with the last undercarriage lid of circular hole by welding center, trestle two ends; Wedge-shaped rubber sealing ring profile is made epimere and is taper shape for the cylinder hypomere, and it is cylindrical for the turbination hypomere that endoporus is made epimere.
The beneficial effects of the utility model are: this anchor pole has anchoring and slip casting dual-use function, before implementing slip casting, fix with plastic expansion casing formula anchor head, make anchor pole that better anchoring force arranged in advance, grouting with plunger can lag behind and carry out like this, and is very favourable to optimizing construction technology; In addition, plastic expansion casing formula anchorage head with solidify after the slurries acting in conjunction, can improve the final anchored force of anchor pole greatly.
Description of drawings
Specify with embodiment below in conjunction with accompanying drawing.
Fig. 1 shows plastic expansion casing outer anchor inner grunt formula grouted anchor bar structure and sectional plan view is installed.
The anchorage head parts front view of Fig. 2 diagrammatic sketch 1.
The vertical view of Fig. 3 diagrammatic sketch 2.
The space-stop rack parts front view of Fig. 4 diagrammatic sketch 1.
The vertical view of Fig. 5 diagrammatic sketch 4.
Among the figure, the 1-back-up ring; 2-anchor core; The 3-shell that expands; The 4-space-stop rack; The 5-sealing ring; The 6-sheeting caps; 7-butterfly pallet; The 8-locking nut; The 9-anchor rod body; 10-boring; The 11-injected hole; The 12-lid of putting on the shelf; The 13-trestle; 14-undercarriage lid
The specific embodiment
With reference to accompanying drawing 1, this anchor pole is made up of critical pieces such as anchor rod body 9, locking nut 8, butterfly pallet 7, sheeting caps 6 and back-up rings 1, anchor rod body 9 usefulness ψ 21.6mm heavy wall coating steel pipes are made, back-up ring 1 of upper end welding, from the anchoring termination, every interval 200mm establishes an injected hole 11 along anchor rod body 9 a certain axis, and up to anchor rod body 9 mid portions, anchor rod body exposes an end establishes one section screw thread.Anchor rod body 9 activities put on several anchorage heads (concrete quantity is decided according to boring 10 degree of depth), it comprises anchor core 2 to anchorage head (seeing accompanying drawing 2,3), the anchor core 2 outer shells 3 that expand that are with versatilely are equipped with a space-stop rack 4 and two wedge-shaped rubber sealing rings 5 between anchor core 2 upper ends of expand shell 3 lower ends and next anchorage head versatilely; Anchor core 2 centers of making are circular hole, and the hole is an equal diameter, and the thin back taper in thick lower end, upper end is made in the outside; The shell 3 that expands is made the lobe formula, center hole is the thin reverse taper hole in thick lower end, upper end, is convenient to cooperate with anchor core 2, and the outside is provided with V-arrangement hackle mark shape, provided under the powerful lateral force effect being overlapped the back institute of expanding by anchor core 2 and bloated shell 3, friction between 10 hole walls greatly can improve and hole.Space-stop rack 4 (seeing accompanying drawing 4,5) is made of upper and lower the lid 12,14 that is provided with circular hole at welding center, two ψ 6mm reinforcing bar trestle 13 two ends, and length requires to decide on the slip casting segment length, is that anchorage head and wedge-shaped rubber sealing ring 5 is separated; Wedge-shaped rubber sealing ring 5 usefulness rubber are made, and are fixing by the anchorage head extruding with 2 to 3 stacks together, and this cover anchorage head also works to increase anchored force simultaneously.
This anchor pole mounting method is, anchor body 9 put versatilely deliver to behind the anchorage head in the boring 10 at the bottom of the hole, anchorage head is smash tightly made it abundant expansion with smashing tight device, order clipping room shelf 4, sealing ring 5 and compress anchorage head is smash tight back with anchorage head sheeting caps 6 and butterfly pallet 7 is installed, at last with locking nut 8 lockings, to guarantee certain-length between locking nut 8 and anchor rod body 9 terminations, be used to connect grouting device.
Claims (5)
1, a kind of plastic expansion casing outer anchor inner grunt formula grouted anchor bar, mainly by anchor rod body (9), locking nut (8), butterfly pallet (7), sheeting caps (6) and back-up ring (1) are formed, it is characterized in that being set with several anchorage heads versatilely outside the anchor rod body (9) in boring (10), it comprises anchor core (2) anchorage head, the outer bloated shell (3) that is set with versatilely of anchor core (2); Between anchor core (2) upper end of bloated shell (3) lower end and next anchorage head a space-stop rack (4) and two, three wedge-shaped rubber sealing rings of suit (5) are housed versatilely.
2, plastic expansion casing outer anchor inner grunt formula grouted anchor bar according to claim 1 is characterized in that anchor core (2) center of making is a circular hole, and the hole is an equal diameter, and the thin back taper in thick lower end, upper end is made in the outside.
3, plastic expansion casing outer anchor inner grunt formula grouted anchor bar according to claim 1, the shell (3) that it is characterized in that expanding is made the lobe formula, and center hole is the thin thin reverse taper hole in thick lower end, upper end, and the outside is provided with V-arrangement zigzag line.
4, plastic expansion casing outer anchor inner grunt formula grouted anchor bar according to claim 1 is characterized in that space-stop rack (4) is provided with upper and lower lid (12), (14) of circular hole by welding center, trestle (13) two ends.
5, plastic expansion casing outer anchor inner grunt formula grouted anchor bar according to claim 1 is characterized in that it is turbination for the cylinder hypomere that wedge-shaped rubber sealing ring (5) profile is made epimere, and it is cylindrical for the back taper hypomere that endoporus is made epimere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420070377 CN2720118Y (en) | 2004-08-18 | 2004-08-18 | Internal slurry-injection anchor rod of plastic expand housing external anchor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420070377 CN2720118Y (en) | 2004-08-18 | 2004-08-18 | Internal slurry-injection anchor rod of plastic expand housing external anchor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2720118Y true CN2720118Y (en) | 2005-08-24 |
Family
ID=35009079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420070377 Expired - Fee Related CN2720118Y (en) | 2004-08-18 | 2004-08-18 | Internal slurry-injection anchor rod of plastic expand housing external anchor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2720118Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103104271A (en) * | 2013-02-21 | 2013-05-15 | 中国矿业大学 | Anchor cable breakage impact buffering and protecting device |
| CN106761865A (en) * | 2016-12-07 | 2017-05-31 | 山东太极龙塑胶科技有限公司 | A kind of cage cone section expanded anchor rod（Rope） |
| CN107130988A (en) * | 2017-07-10 | 2017-09-05 | 中南大学 | A kind of anti-reflection slip casting Composite Bolt of liquid carbon dioxide explosion |
| CN110670599A (en) * | 2019-09-09 | 2020-01-10 | 中冶交通建设集团有限公司 | Hollow grouting prestressed anchor rod and construction method thereof |
-
2004
- 2004-08-18 CN CN 200420070377 patent/CN2720118Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103104271A (en) * | 2013-02-21 | 2013-05-15 | 中国矿业大学 | Anchor cable breakage impact buffering and protecting device |
| CN103104271B (en) * | 2013-02-21 | 2014-11-19 | 中国矿业大学 | Anchor cable breakage impact buffering and protecting device |
| CN106761865A (en) * | 2016-12-07 | 2017-05-31 | 山东太极龙塑胶科技有限公司 | A kind of cage cone section expanded anchor rod（Rope） |
| CN106761865B (en) * | 2016-12-07 | 2019-06-04 | 山东太极龙塑胶科技有限公司 | A kind of cage cone section expanded anchor rod (rope) |
| CN107130988A (en) * | 2017-07-10 | 2017-09-05 | 中南大学 | A kind of anti-reflection slip casting Composite Bolt of liquid carbon dioxide explosion |
| CN107130988B (en) * | 2017-07-10 | 2023-08-25 | 中南大学 | Liquid carbon dioxide blasting anti-reflection grouting composite anchor rod |
| CN110670599A (en) * | 2019-09-09 | 2020-01-10 | 中冶交通建设集团有限公司 | Hollow grouting prestressed anchor rod and construction method thereof |
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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 |