CN85200498U - Tubular prestressed grouting anchor rod - Google Patents
Tubular prestressed grouting anchor rod Download PDFInfo
- Publication number
- CN85200498U CN85200498U CN85200498U CN85200498U CN85200498U CN 85200498 U CN85200498 U CN 85200498U CN 85200498 U CN85200498 U CN 85200498U CN 85200498 U CN85200498 U CN 85200498U CN 85200498 U CN85200498 U CN 85200498U
- Authority
- CN
- China
- Prior art keywords
- anchor rod
- pipe body
- grouting anchor
- head
- prestressed grouting
- 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 - Lifetime
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Abstract
The tubular prestressed grouting anchor rod. In connection with mining and construction. The utility model provides a tubular prestressing force grout stock that anchoring performance is good that is used for underground works to strut and ground engineering to consolidate. The anchor rod consists of a pipe body, an upper wedge, a lower wedge, a baffle ring and a disc-shaped base plate, wherein the inner wall of the head of the pipe body is provided with the upper wedge and the lower wedge, the head of the pipe body is provided with two straight seams for expanding the head of the pipe body and two radial holes for circulating mortar, and the baffle ring is welded on the outer wall of the tail of the pipe body. The anchor rod can be used as a temporary support, such as grouting, and can also be used as a permanent support. The problems that the common prestressed grouting anchor rod is complex in structure and time-consuming to install are solved.
Description
With mining and build relevant.
The prestressed grouting anchor pole is a kind of preferably anchor pole of present underground engineering support and ground surface works consolidation effect, but general prestressed grouting anchor pole is equipped with stack, and complex structure, installation procedure is many, spended time is long.As the mechanical anchor prestressed grouting anchor pole of writing by E Huo Ke and ET Blang, Britain's mining metallurgy is understood the 339th page of introduction of " subsurface rock open excavation " (Underground Excavation in Rock) of publishing in 1980, mainly constitute by the expansion sleeve bolt that has an axial groove, stack, rubber packing plug, backing plate, packing ring and nut.
The utility model is the tubular type prestressed grouting anchor pole that being convenient to of proposing in order to improve pre existing stress grouted rock bolt installed, anchored force is big.
The new tubular type prestressed grouting anchor pole that proposes (as figure) is made of body 1, last wedge 2, hyposphene 3, baffle ring 4 and dish-shaped backing plate 5, the body head is thicker than body other parts, so that place and fixing hyposphene 3, head has two vertical masonry joints 7 for the tube head distending, the end of two vertical masonry joints 7 has two radial holes 6 for the mortar circulation, and body head inwall one face down bonding has last wedge 2, and baffle ring 4 welds on body afterbody outer wall, apart from body tail end 10-20 millimeter, so that connect the grout pipe joint.This body is generally made with steel, but can be made of plastic in the serious down-hole of acid water.Determine the body size according to actual needs, but optimum size is: body length is that 1-5 rice, pipe thickness are that 2-10 millimeter, body external diameter are the 25-50 millimeter.
The utility model is rational in infrastructure, be convenient to install; General prestressed grouting anchor pole cheap 50%; Anchored force reaches 12 tons, and is higher 0.5～1 times than general mining anchor pole.As temporary lining, a this anchor pole is installed is only needed one minute.In case of necessity, filling can be done permanent supporting with mortar to this kind anchor pole.Because the annular vent space of installing between hole wall and the anchor pole is bigger, can not stop up during grouting, so installation quality is reliable.
Claims (3)
1, a kind of underground engineering support and ground surface works are reinforced the prestressed grouting anchor pole of usefulness.It is characterized in that the body of rod is to make with metal or plastic pipe, said body head diameter is provided with wedge and hyposphene greater than the body other parts in the body head, has two vertical masonry joints for the body distending, and the vertical masonry joint end has two radial holes for the mortar circulation.
2,, it is characterized in that said baffle ring is the 10-20 millimeter apart from the distance of body tail end according to the described prestressed grouting anchor pole of claim 1.
3,, it is characterized in that body length is that 1-5 rice, pipe thickness are that 2-10 millimeter, body external diameter are 25 according to claim 1 or 2 described prestressed grouting anchor poles---50 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN85200498U CN85200498U (en) | 1986-04-01 | 1986-04-01 | Tubular prestressed grouting anchor rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN85200498U CN85200498U (en) | 1986-04-01 | 1986-04-01 | Tubular prestressed grouting anchor rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN85200498U true CN85200498U (en) | 1986-05-28 |
Family
ID=4796817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN85200498U Expired - Lifetime CN85200498U (en) | 1986-04-01 | 1986-04-01 | Tubular prestressed grouting anchor rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN85200498U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100370111C (en) * | 2001-12-15 | 2008-02-20 | 汪德洪 | Composite rockbolt |
| CN102317573A (en) * | 2009-09-01 | 2012-01-11 | Fci特拉华控股有限公司 | Surrender formula anchor pole and assembly |
| CN105863653A (en) * | 2016-04-27 | 2016-08-17 | 杨毅 | Construction method of soft-soil tunnel under rock exposure condition |
-
1986
- 1986-04-01 CN CN85200498U patent/CN85200498U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100370111C (en) * | 2001-12-15 | 2008-02-20 | 汪德洪 | Composite rockbolt |
| CN102317573A (en) * | 2009-09-01 | 2012-01-11 | Fci特拉华控股有限公司 | Surrender formula anchor pole and assembly |
| CN102317573B (en) * | 2009-09-01 | 2014-02-12 | Fci特拉华控股有限公司 | Yielding bolt and assembly |
| CN105863653A (en) * | 2016-04-27 | 2016-08-17 | 杨毅 | Construction method of soft-soil tunnel under rock exposure condition |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |