CN204591208U - A kind of double-deck grouting pipe - Google Patents
A kind of double-deck grouting pipe Download PDFInfo
- Publication number
- CN204591208U CN204591208U CN201420869484.9U CN201420869484U CN204591208U CN 204591208 U CN204591208 U CN 204591208U CN 201420869484 U CN201420869484 U CN 201420869484U CN 204591208 U CN204591208 U CN 204591208U
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- Prior art keywords
- outer tube
- inner sleeve
- grouting
- water
- fore
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- Expired - Fee Related
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Abstract
The utility model discloses a kind of double-deck grouting pipe, comprise inner sleeve, outer tube, stop grouting plug and fore-set, described inner sleeve is socketed in outer tube, stop grouting plug is arranged on the bottom of inner sleeve, outer tube is fastened on to be treated in shutoff hole wall, outer tube is positioned at the grouting valve being provided with on seat earth and being communicated with outer tube, inner sleeve is positioned at the drain valve being provided with on seat earth and being communicated with inner sleeve, one end of fore-set is arranged at the top of inner sleeve and outer tube, and the other end holds on roof.The utility model is closed orifices surrounding rock crack first, makes it not metal run out, not spillage, and then carries out deep grouting for water blocking, and structure is simple, easy to use.
Description
Technical field
The utility model relates to a kind of boring high pressure and to metal run out device for plugging, in particular a kind of double-deck grouting pipe.
Background technology
Slip casting technology of harnessing the river threatens the important channel in coal seam as liberation by water, feasible, the economical rationality of possessing skills, safe and reliable feature, and its scope of application is very wide, shutoff can be destroyed the water flowing fractured zone and conduit pipe that cause by various geological structure; Can aquifer be transformed, make it to become aquitard; Primary and the secondary space of water barrier, crack can be reinforced, make it to become the fluid-tight rock mass that blocks water.
Grout transformation changes method and the means of rock mass (layer) hydrogeological conditions as a kind of will by people, general principle is slurries dehydration in the space originally occupied by water by note layer or passage, consolidation or gellings under certain pressure, certain hour effect, make Seed harvest or gel and Rock Mass form the entirety that blocks water, thus change the hydrogeological conditions being unfavorable for digging up mine.Aquifer transformation can be played to the slip casting of thin layer limestone, effect that water producing fractures shutoff and water barrier are reinforced:
(1) to a large amount of reperfusion serosity of thin layer limestone, slurries along Karst Fissures diffusion, calculus, filling, the water " displacement " in aquifer out, make it not moisture or weak moisture at thin layer limestone.
(2) slurries are under grouting pressure effect, by thin layer limestone along the migration of Ordovician karst water supply thin layer limestone passage, diffusion, calculus, block or reduce conduit pipe, reducing the increment of Ordovician karst water.
(3) slurries are under grouting pressure effect, by thin layer limestone along the migration of seat earth crack, diffusion, calculus, and filling water barrier water producing fractures, strengthening, thickening seat earth.
The seam mining water damage control waterborne of high bearing bottom plate mainly contains two kinds of methods, that is: Draining hook and mining under safe waterpressure of aquifer.But dredge that to fall exploitation be with good conditionsi, for moisture abundant, nourishment condition is good, the artesian aquifer that head is high, as taked Draining hook measure, one is that the electric lighting bill is heavy in draining, and two is after coal seam has been adopted, and still need long-term draining, economy is extremely unreasonable.Meanwhile, can dredge for some aquifer and fall, but dredge scale of falling also by the restriction of mine drainage ability.Not only waste water resource, and affect production and take over, seriously restrict manufacturing schedule.Current coal mining mainly adopts floor undulation grouting and reinforcing and renovation technique, increases seat earth effective water-resisting layer thickness, administers the too grey water damage danger side of body of base plate high pressure-bearing, guarantees Safety of Coal Mine Production
Floor undulation limestone water damage preventing and controlling flow process is: work plane hydrogeological conditions pre assessment → physical prospecting engineering → govern compositive designs → drill slip casting (unrestrained water) engineering construction → quality examination (inspection eye, physical prospecting) → security evaluation.
Govern compositive design is the basis carrying out govern compositive, and the quality good or not of govern compositive design directly affects the construction safety of govern compositive, working measure and construction quality and construction effect.Therefore govern compositive designing requirement will have higher water prevention theoretical level and have the technician of abundant site operation experience to come, and understands construction condition completely, grasps the technical level of constructor and the equipment performance of use.Govern compositive design not only requires the reasonability of engineering design, science and operability in macroscopical, and require in each link and details is complete, safety, science, reasonable and can operate.
All there is the situation of metalling run out of water under high pressure boring in the mine carrying out floor grouting transformation, as the exploratory bore-hole of boring of supplying water, hydrogeological peephole, spy water hole, injected hole and close bad in down-hole.
Several form that boring is metalled run out and the analysis of causes:
The boring that in stope, exploratory bore-hole causes because of close bad is metalled run out processing method.Because the exploratory bore-hole pore-forming time of close bad is longer, the structure of boring is uncertain, metal run out when working face extraction discloses this boring often, timely, effective to the processing requirements of this kind of boring of metalling run out, reduce the time affecting production because boring is metalled run out as far as possible.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of double-deck grouting pipe, solves the problem of metalling run out that stope causes because of close bad.
The utility model is achieved through the following technical solutions, the utility model comprises inner sleeve, outer tube, stop grouting plug and fore-set, described inner sleeve is socketed in outer tube, stop grouting plug is arranged on the bottom of inner sleeve, outer tube is fastened on to be treated in shutoff hole wall, outer tube is positioned at the grouting valve being provided with on seat earth and being communicated with outer tube, inner sleeve is positioned at the drain valve being provided with on seat earth and being communicated with inner sleeve, one end of fore-set is arranged at the top of inner sleeve and outer tube, and the other end holds on roof.
As one of preferred embodiment of the present utility model, the outer wall of described outer tube is wound around cotton yarn is set.
The utility model has the following advantages compared to existing technology: the utility model is closed orifices surrounding rock crack first, makes it not metal run out, not spillage, and then carries out deep grouting for water blocking, and structure is simple, easy to use.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
Below embodiment of the present utility model is elaborated; the present embodiment is implemented under premised on technical solutions of the utility model; give detailed embodiment and concrete operating process, but protection domain of the present utility model is not limited to following embodiment.
As shown in Figure 1, the crack of the present embodiment is positioned on the hole wall 7 of the boring of seat earth 3, and roof 1 is positioned on seat earth 3.The present embodiment comprises inner sleeve 8, outer tube 5, stop grouting plug 10 and fore-set 11, described inner sleeve 8 is socketed in outer tube 5, stop grouting plug 10 is arranged on the bottom of inner sleeve 8, outer tube 5 is fastened on to be treated in shutoff hole wall 7, outer tube 5 is positioned at the grouting valve 2 being provided with on seat earth 3 and being communicated with outer tube 5, inner sleeve 8 is positioned at the drain valve 4 being provided with on seat earth 3 and being communicated with inner sleeve 8, one end of fore-set 11 is arranged at the top of inner sleeve 8 and outer tube 5, and the other end holds on roof 1.The outer wall of outer tube 5 is wound around cotton yarn 6 is set.
Outer tube 5 is wound around cotton yarn 6, is inserted in the hole wall 7 of boring, be pressed between boring and roof 1 with fore-set 11, drain valve 4 open mode, inject dual slurry 9 from grouting valve 2, close inner sleeve 8, annular gap between outer tube 5 and hole wall 7, and reach rapid solidification.Treat that drain valve 4 has dual slurry 9 to return out, now the dual slurry 9 of outer tube 5 is full of, closes drain valve 4 about 10 ~ 20 seconds a little, makes the dual slurry 9 of outer tube 5 increase pressure so that shutoff hole wall 7 crack completely, but pressing time be moment, can not be long.Then stop slip casting, wait 20 minutes to be solidified, close drain valve 4, observe and have unchanged and sound with or without drainage and surrounding rock body.If situation without exception, can inject from drain valve 4 object that single liquid slurry realizes thorough shutoff boring.
Single liquid slurry of the present embodiment is water: the weight ratio of cement is the cement paste of 0.6 ~ 0.7: 1, and dual slurry 9 is water glass: the weight ratio of cement paste is the mixed serum of 1: 0.6 ~ 1.Cement selection PO42.5 Portland cement.
Claims (2)
1. a double-deck grouting pipe, it is characterized in that, comprise inner sleeve, outer tube, stop grouting plug and fore-set, described inner sleeve is socketed in outer tube, and stop grouting plug is arranged on the bottom of inner sleeve, and outer tube is fastened on to be treated in shutoff hole wall, outer tube is positioned at the grouting valve being provided with on seat earth and being communicated with outer tube, inner sleeve is positioned at the drain valve being provided with on seat earth and being communicated with inner sleeve, one end of fore-set is arranged at the top of inner sleeve and outer tube, and the other end holds on roof.
2. the double-deck grouting pipe of one according to claim 1, is characterized in that, the outer wall of described outer tube is wound around and arranges cotton yarn.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420869484.9U CN204591208U (en) | 2014-12-18 | 2014-12-18 | A kind of double-deck grouting pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420869484.9U CN204591208U (en) | 2014-12-18 | 2014-12-18 | A kind of double-deck grouting pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204591208U true CN204591208U (en) | 2015-08-26 |
Family
ID=53927373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420869484.9U Expired - Fee Related CN204591208U (en) | 2014-12-18 | 2014-12-18 | A kind of double-deck grouting pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204591208U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104929565A (en) * | 2014-12-18 | 2015-09-23 | 安徽恒源煤电股份有限公司 | Double-layered grouting guide pipe |
| CN105781586A (en) * | 2016-04-27 | 2016-07-20 | 安徽恒源煤电股份有限公司 | Device for filtering flow and releasing pressure on water inrush borehole and sleeving tube in hole for grouting, fixing tube and blocking and tube-fixing and blocking method thereof |
-
2014
- 2014-12-18 CN CN201420869484.9U patent/CN204591208U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104929565A (en) * | 2014-12-18 | 2015-09-23 | 安徽恒源煤电股份有限公司 | Double-layered grouting guide pipe |
| CN105781586A (en) * | 2016-04-27 | 2016-07-20 | 安徽恒源煤电股份有限公司 | Device for filtering flow and releasing pressure on water inrush borehole and sleeving tube in hole for grouting, fixing tube and blocking and tube-fixing and blocking method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150826 Termination date: 20151218 |
|
| EXPY | Termination of patent right or utility model |