CN202866820U - One-way grouting pipe under mine - Google Patents
One-way grouting pipe under mine Download PDFInfo
- Publication number
- CN202866820U CN202866820U CN 201220420408 CN201220420408U CN202866820U CN 202866820 U CN202866820 U CN 202866820U CN 201220420408 CN201220420408 CN 201220420408 CN 201220420408 U CN201220420408 U CN 201220420408U CN 202866820 U CN202866820 U CN 202866820U
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- Prior art keywords
- grouting
- mine
- way
- pipe under
- hole
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- 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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- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The utility model relates to a one-way grouting pipe under a mine. The one-way grouting pipe under the mine is mainly composed of five parts which are a grouting hole section, an upper connecting construction element, a one-way control section, a lower connecting construction element and a thread end head. The five parts are respectively connected through threads. The one-way grounding pipe under the mine has a function of avoiding backflow of serous fluid. Grouting pressure in a hole meets the grouting demand after grouting is finished. The one-way grouting pipe under the mine avoids the problem of insufficient grouting pressure caused by the backflow of the serous fluid, ensures sufficient spreading of the serous fluid in coal-rock mass fractures. The one-way grouting pipe under the mine has the advantages that an artificial hole sealing step is left out, grouting process under the mine is simplified, labor intensity of workers is reduced, waste of grouting materials is effectively avoided, safety and grouting quality in construction are improved, the design is ingenious and reasonable, operation is simple, implement is easy to achieve, practical applicability for grouting aspects in coal mine underworkings is wide.
Description
Technical field
The utility model relates to the underworkings grouting device, especially a kind of down-hole unidirectional grout pipe.
Background technology
Slurry injection technique is a kind of technical way of coal mine roadway surrounding rock consolidation, antiseepage water blockoff.At present, the underworkings mortar depositing construction generally adopts seamless steel pipe as Grouting Pipe, arranges some injected holes at the seamless steel pipe body, is connected with grouting gun head by the screw thread that is arranged on seamless steel pipe one end.Because the device that prevents slurry reflux is installed on this type of Grouting Pipe body, when grouting pressure reaches construction requirement, after stopping slip casting and pulling up grouting gun head, be subjected to the pressure differential effect at Grouting Pipe two ends, cause slurry reflux.Increased thus artificial sealing of hole difficulty, directly caused the sealing of hole poor effect, grouting quality descends, and the serious waste injecting paste material has affected efficiency of construction.
Summary of the invention
Technical problem: the purpose of this utility model provides a kind of slurry reflux of preventing function that has, and after assurance slip casting was complete, grouting pressure reached the Grouting Pipe of designing requirement in the hole.
Technical scheme: the utility model is a kind of down-hole unidirectional grout pipe that can prevent slurry reflux, mainly is comprised of injected hole section, upper connecting elements, unidirectional control section, lower connecting elements and threaded end five parts.Each several part is threaded connection.Wherein the injected hole section is cross layout injected hole; Upper connecting elements connects injected hole section and unidirectional control section; Be furnished with spring and steel ball in the unidirectional control section, spring is fixed on the connecting elements bottom, and steel ball is placed in the spring lower end; Lower connecting elements connects unidirectional control section and threaded end; The threaded end front end is furnished with screw thread, can connect grouting gun head during slip casting.When carrying out slip casting, steel ball is pushed open by slurries, and slurries can be smoothly by the slip casting control section, and when slip casting stopped, spring handle steel ball pushed home was pressed on lower connecting elements upper end, thereby effectively stops slurry reflux.
Beneficial effect: the utility model is applied in the coal mine down-hole tunnel slurry injection technique, by the inner backflow proof design of Grouting Pipe, can effectively prevent the slurries cocurrent flow, avoid because the grouting pressure that slurry reflux causes is inadequate, guarantee slurries fully diffusion in the coal and rock crack.Omit the step of artificial sealing of hole, simplified underground grouting technique, reduced labor strength, effectively avoided the waste of injecting paste material, improved safety and the grouting quality of construction.Down-hole unidirectional grout tubular structure is compact, and deft design is reasonable, and is simple to operate, having widely practicality aspect the coal mine down-hole tunnel slip casting, can effectively guarantee slip casting effect, simplifies grouting process.
Description of drawings
Fig. 1 is front schematic view of the present utility model
Fig. 2 is generalized section of the present utility model
Among the figure: 1-injected hole section, 2-injected hole, the upper connecting elements of 3-, the unidirectional control section of 4-, connecting elements under the 5-, 6-threaded end, 7-spring, 8-steel ball.
The specific embodiment
As shown in Figure 1 and Figure 2, be cross on the injected hole section (1) and arrange injected hole (2); Upper connecting elements (3) two ends external diameter is identical with unidirectional control section (4) internal diameter with injected hole section (1), and the middle part external diameter is identical with unidirectional control section (4) external diameter with injected hole section (1); Arrange spring (7) and steel ball (8) in the unidirectional control section (4), spring (7) upper end is fixed on connecting elements (3) lower end, and steel ball (8) presses lower connecting elements (5); Lower connecting elements (5) be threaded unidirectional control section (4) and threaded end (6), lower connecting elements (5) two ends external diameter is identical with threaded end (6) internal diameter with unidirectional control section (4).
Claims (3)
1. down-hole unidirectional grout pipe, mainly formed by injected hole section (1), upper connecting elements (3), unidirectional control section (4), lower connecting elements (5) and threaded end (6) five parts, it is characterized in that: each several part all is threaded connection, and the injected hole section is cross and is evenly arranged injected hole.
2. a kind of down-hole according to claim 1 unidirectional grout pipe, it is characterized in that: the spring (7) in the unidirectional control section (4) is fixed on connecting elements (3) lower end, and steel ball (8) is close to lower connecting elements (5) upper end.
3. a kind of down-hole according to claim 1 unidirectional grout pipe, it is characterized in that: threaded end (6) front end is provided with screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220420408 CN202866820U (en) | 2012-08-13 | 2012-08-13 | One-way grouting pipe under mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220420408 CN202866820U (en) | 2012-08-13 | 2012-08-13 | One-way grouting pipe under mine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202866820U true CN202866820U (en) | 2013-04-10 |
Family
ID=48033545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220420408 Expired - Fee Related CN202866820U (en) | 2012-08-13 | 2012-08-13 | One-way grouting pipe under mine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202866820U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103758533A (en) * | 2014-01-06 | 2014-04-30 | 中国矿业大学 | High-low pressure integrated roadway grouting reinforcement method |
| CN104747210A (en) * | 2015-04-03 | 2015-07-01 | 核工业井巷建设公司 | Connecting structure for grouting large pipe shed for shallow-depth small-spacing rock-soil tunnel construction |
-
2012
- 2012-08-13 CN CN 201220420408 patent/CN202866820U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103758533A (en) * | 2014-01-06 | 2014-04-30 | 中国矿业大学 | High-low pressure integrated roadway grouting reinforcement method |
| CN103758533B (en) * | 2014-01-06 | 2015-12-30 | 中国矿业大学 | A kind of high-low pressure integratedization roadway grouting reinforcement means |
| CN104747210A (en) * | 2015-04-03 | 2015-07-01 | 核工业井巷建设公司 | Connecting structure for grouting large pipe shed for shallow-depth small-spacing rock-soil tunnel construction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130410 Termination date: 20130813 |