CN2406064Y - Anchor rod - Google Patents
Anchor rod Download PDFInfo
- Publication number
- CN2406064Y CN2406064Y CN 99246584 CN99246584U CN2406064Y CN 2406064 Y CN2406064 Y CN 2406064Y CN 99246584 CN99246584 CN 99246584 CN 99246584 U CN99246584 U CN 99246584U CN 2406064 Y CN2406064 Y CN 2406064Y
- Authority
- CN
- China
- Prior art keywords
- anchor
- rod
- grouting
- model
- utility
- 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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- Lining And Supports For Tunnels (AREA)
Abstract
The utility model discloses an anchor rod for supporting and protecting a drift of a coal mine, which is formed in the way that one end of a rod body 1 is connected with an anchor head 4. The utility model is characterized in that the other end of the rod body 1 is provided with a hollow sealing-shaped hole 2, and an outer circle of the rod body is provided with a grouting hole 3 which is communicated with the hollow sealing-shaped hole 2 of the rod body 1. In the construction of anchor spraying drifts of coal mines, a grouting anchor rod is beaten with a frontal is realized, operators are reduced, only two persons are needed in general, and work efficiency is improved. The utility model has the advantages of no need of adding grouting anchor rods and stop-grouting plugs during grouting and low cost. Beating anchor rods of each meter of the drift can save the cost about 50 yuan.
Description
The utility model relates to the bolt support device of coal mine roadway, belongs to the colliery construction engineering technical field.
The bolting and shotcrete roadway that existing colliery rock fracture is grown becomes the lane after a period of time in the tunnel, apart from the position of the certain distance of meeting head on, needs punching again, and grouted anchor bar is installed, and carries out the work of grouting reinforcement rock.It exists not enough: the one, and operating personnel are many, and inefficiency generally needs 5 people to operate; The 2nd, the cost of production height needs to increase grouted anchor bar and stop grouting plug.
The purpose of this utility model is to provide a kind of and can increases work efficiency in the construction of colliery bolting and shotcrete roadway, and the anchor that reduces production costs is annotated the formula anchor pole.
The technical solution of the utility model is achieved in that and thisly is connected with the anchor pole of anchor head by the body of rod one end that its improvements are: be provided with hollow closed hole at the body of rod other end; On body of rod cylindrical, be provided with injected hole and communicate with its hollow closed hole.
Implement technique scheme, on body of rod cylindrical, be provided with 9 injected holes usually and communicate with hollow closed hole.
Because the utility model is by being provided with injected hole and communicating with its hollow closed hole on body of rod cylindrical, in the construction of colliery bolting and shotcrete roadway, realized that grouted anchor bar sets with meeting head on, both played the anchorage effect of common solid anchor pole initial stage, played the slip casting effect of later stage grouted anchor bar again country rock.Reduced the operating personnel of grouting with plunger, improved operating efficiency, need not increase grouted anchor bar and stop grouting plug during slip casting, cost of production reduces.
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is elaborated.
Fig. 1 is the cut-away section front view that has of the present utility model;
Fig. 2 is the right view of Fig. 1;
Fig. 3 is connected in the cut-away section installation drawing of coal mine roadway in construction for the utility model.
Fig. 1-shown in Figure 3.Anchor pole adopts (English unit) welded pipe in 6 fens, and end heating forges into bluff body and screws into shape of threads anchor head 4.This moment, the mesopore of the body of rod 1 also formed an end opening, the hollow closed hole 2 of end sealing; The other end at the body of rod 1 is provided with thread segment; On the cylindrical of the body of rod 1, be provided with 9 injected holes 3 and communicate with its hollow closed hole 2.
Referring to Fig. 1, Fig. 3.During use, be 35mm according to 4 width dimensions of the anchor head on the body of rod 1, first electricity consumption coal borer bore diameter in the coal rock layer of coal mine roadway wall is 42mm; Anchor pole is inserted in the hole, and guarantee that the thread segment that slip casting connects stretches out outside the hole.By shotcrete layer on the wall of tunnel 5 anchor pole is fixed.According to the development degree difference of each colliery wall-rock crack, about 2 months, carry out slip casting usually again and glued joint reinforcing.Slip casting is gluedd joint when reinforcing, grouting device is connected in the thread segment of the body of rod 1, the cement paste that enters in the body of rod 1 hollow closed hole 2 is respectively from 3 ejections of 9 injected holes, at first the grouting filling splicing is carried out in the crack that country rock is occurred, again total length slip casting is carried out in the space of anchor pole and coal rock layer mesopore and filled reinforcing, thereby improved the globality of country rock and the bearing capacity of self.
The utility model can be designed to different model specifications according to the needs of construction occasion; Also can be applicable to gold mine tunnel stabilization works.
Claims (2)
1. an anchor is annotated the formula anchor pole, mainly is connected with anchor head (4) by the body of rod (1) one end and constitutes; It is characterized in that: be provided with hollow closed hole (2) at the body of rod (1) other end; The injected hole (3) that is provided with on the body of rod (1) cylindrical communicates with its hollow closed hole (2).
2. a kind of anchor according to claim 1 is annotated the formula anchor pole; It is characterized in that: 9 injected holes (3) that are provided with on the body of rod (1) cylindrical communicate with its hollow closed hole (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99246584 CN2406064Y (en) | 1999-09-27 | 1999-09-27 | Anchor rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99246584 CN2406064Y (en) | 1999-09-27 | 1999-09-27 | Anchor rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2406064Y true CN2406064Y (en) | 2000-11-15 |
Family
ID=34032178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99246584 Expired - Fee Related CN2406064Y (en) | 1999-09-27 | 1999-09-27 | Anchor rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2406064Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101925721B (en) * | 2008-01-25 | 2013-03-13 | 弗雷德尔.伊谢贝克有限责任公司 | Anchor tube and method for production thereof |
-
1999
- 1999-09-27 CN CN 99246584 patent/CN2406064Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101925721B (en) * | 2008-01-25 | 2013-03-13 | 弗雷德尔.伊谢贝克有限责任公司 | Anchor tube and method for production 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 |