CN208918557U - A kind of grouting device of high pressure, big flow - Google Patents
A kind of grouting device of high pressure, big flow Download PDFInfo
- Publication number
- CN208918557U CN208918557U CN201821627184.4U CN201821627184U CN208918557U CN 208918557 U CN208918557 U CN 208918557U CN 201821627184 U CN201821627184 U CN 201821627184U CN 208918557 U CN208918557 U CN 208918557U
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- valve body
- rock
- screw thread
- grouting
- big flow
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Abstract
The utility model relates to a kind of high pressures, the grouting device of big flow, it include valve body, the valve inner is equipped with unidirectional stop grouting plug, the unidirectional stop grouting plug is bonded with valve interior surface, pressure maintaining room is equipped in the middle part of the valve body, inner hole is equipped with inch screw thread on the left of the valve body, and the inch screw thread screws in cored screw made in Great Britain, the English system cored screw outer cover rubber sleeve pipe, the utility model will be under the effect of deep-well complex stress, the intensity of country rock sharply declines, the soft-rock tunnel that Support Resistance is lost substantially, pass through high pressure, the grouting device of big flow, to broken, impaired country rock is rapidly injected slurries with pressure, after grout curing, keep tunnel-surrounding weak, breaking surrounding rock becomes that there are stronger prestressing force supporting circle bodies, thus it balances, resist the complex stress of deep wall rock, be greater than when the intensity of tunnel-surrounding supporting circle body or When being enough to balance deep wall rock stress, stress will be shifted to other planes of weakness or to country rock deep, to achieve the purpose that keep roadway support stable.
Description
Technical field
The utility model belongs to mining machinery technical field, and in particular to the grouting device of a kind of high pressure, big flow.
Background technique
With pit mining depth be continuously increased and the continuous deterioration of mining conditions, shown as in superficial part mine country rock
Stable tunnel often shows as having apparent soft rock feature in Deep Mine, easily occur it is broken rise and rheology, tunnel it is whole
Body bearing capacity is decreased obviously, and tunnel badly damaged deformation frequent occurrence jeopardizes the safety in production and personal safety in mine.Occur
The intensity in severely deformed tunnel, peripheral rock sharply declines, and Support Resistance is obviously lost, and support system is substantially completely lost
It resists Change in surrounding rocks power, supporting is caused further to destroy.Therefore, itself bearing capacity for how improving country rock, by peripheral rock
It is built into the circle body with certain structural initial pre stress, to balance, resist the complex stress of deep wall rock, that is, improves the supporting of country rock
Resistance is the key that solve Deep Mine Deformation in Soft Rock Tunnel.
Utility model content
The technical issues of the utility model is solved is to provide the grouting device of a kind of high pressure, big flow, soft to periphery
Weak country rock is rapidly injected high pressure slurries, high pressure slurries is prestored in weak surrounding rock, so that roadway surrounding rock be made to have after grout curing
Very high prestressing force, to solve the problems in above-mentioned background technique.
In order to solve the above-mentioned technical problem, the utility model provides the following technical solution:
The grouting device of a kind of high pressure, big flow, includes valve body, and the valve inner is equipped with unidirectional stop grouting plug, described
Unidirectional stop grouting plug is bonded with valve interior surface, and pressure maintaining room is equipped in the middle part of the valve body, and inner hole is equipped with spiral shell made in Great Britain on the left of the valve body
Line, and the inch screw thread screws in cored screw made in Great Britain, the English system cored screw outer cover rubber sleeve pipe, the rubber sleeve
On the right side of pipe in conjunction with taper on the left of valve body, it is equipped with washer on the left of the gum sleeve, is equipped with locking nut, institute on the left of the washer
It states inner hole on the right side of valve body and is equipped with inch screw thread, and the inch screw thread is connected with one end of external Grouting Pipe.
Furthermore, the cored screw made in Great Britain, which is screwed with valve body by the inch screw thread of inner hole on the left of valve body, connect.
Furthermore, one end of the Grouting Pipe is screwed by the inch screw thread of inner hole on the right side of valve body with valve body and is connect.
It is hollow by unidirectional stop grouting plug is pressed into valve body first when installation it can be seen from above-mentioned design scheme, then by English system
Screw rod screws in the unidirectional stop grouting plug of valve body jam-packed, and due to using inch screw thread, leakproofness is obviously better than metric thread.Again by rubber
Pipe sleeve is covered outside cored screw made in Great Britain, and left side covers upper gasket, is screwing in locking nut, when locking nut screws, pushes right
Side gum sleeve spreading, so as to sealed external wall rock drill-hole.Right hand external Grouting Pipe threads directly into valve body, that is, avoids welding
Process, and saved packaging space, installation and its conveniently, while the cored screw made in Great Britain in left side is due to also using screw thread directly to connect
It connects, is produced convenient for high-volume rolled thread.
The utility model has the following beneficial effects:
The utility model will be under the effect of deep-well complex stress, and the intensity of country rock sharply declines, and Support Resistance loses substantially
The soft-rock tunnel of mistake is rapidly injected slurries with pressure to broken, impaired country rock, slurries are solid by the grouting device of high pressure, big flow
After change, make that tunnel-surrounding is weak, breaking surrounding rock becomes that there are stronger prestressing force supporting circle bodies, thus balances, resists deep
The complex stress of country rock, when the intensity of tunnel-surrounding supporting circle body is greater than or is enough to balance deep wall rock stress, stress will
It is shifted to other planes of weakness or to country rock deep, to achieve the purpose that keep roadway support stable.
Detailed description of the invention
Attached drawing is used to provide a further understanding of the present invention, and constitutes part of specification, practical with this
Novel embodiment is used to explain the utility model together, does not constitute limitations of the present invention.
Fig. 1 is the structural schematic diagram of the utility model；
In figure: 1- locking nut, 2- washer, 3- gum sleeve, 4- English system cored screw, 5- valve body, the unidirectional stop grouting plug of 6-,
7- Grouting Pipe.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment, based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Referring to Fig. 1, the grouting device of a kind of high pressure, big flow, includes following steps: when in use, first will be single
It is pressed into valve body 5 to stop grouting plug 6, then the unidirectional stop grouting plug 6 of 5 jam-packed of valve body is screwed in by cored screw 4 made in Great Britain, due to using spiral shell made in Great Britain
Line, leakproofness are obviously better than metric thread, then by 3 sets of gum sleeve outside cored screw 4 made in Great Britain, and left side covers upper gasket 2,
Locking nut 1 is screwed in again, when locking nut 1 screws, right side 3 spreading of gum sleeve is pushed, so as to sealed external wall rock drill-hole.
When slip casting, since cored screw 4 diameter of bore in left side is larger (under the diameter limited relative to industry relevant criterion), therefore it can increase
Flow improves injection speed.When the grouting pump pressurization being connect with left side cored screw 4, under the pressure of slurries, automatically open
The unidirectional stop grouting plug 6 installed in valve body 5, slip casting channel are opened, and slurries enter the large space pressure maintaining room among valve body 5, due to protecting
Pressure chamber diameter is greater than 7 inner hole of Grouting Pipe on right side, and slurries enter the Grouting Pipe 7 of right side installation under the situation of pressure free of losses,
Realize high pressure, big flow slip casting.When slip casting stops, unidirectional stop grouting plug 6 avoids slurry reflux, and making roadway surrounding rock, there are band mud jacking
Liquid promotes the structural initial pre stress of country rock, balances, resists the complex stress of deep wall rock.
In embodiment, the utility model considers traditional Grouting Pipe (grouted anchor bar), and flow is low, grouting amount is small lacks
Point increases the internal diameter of cored screw made in Great Britain, and as individual part, has facilitated installation and replacement stop grouting plug, but also not only convenient for big
Batch rolled thread production.
In embodiment, the utility model is further equipped with diameter relative to the larger pressure maintaining room of Grouting Pipe, slurries in valve body
The Grouting Pipe for entering right side installation under the situation of pressure free of losses, realizes high pressure, big flow slip casting, stays cured tunnel-surrounding
Country rock promotes the intensity (prestressing force) of tunnel-surrounding country rock.
The above are the preferable embodiment of the utility model, the utility model those skilled in the art can also be to upper
It states embodiment to change and modify, therefore, the utility model is not limited to above-mentioned specific embodiment, all abilities
Field technique personnel made any conspicuous improvement, replacement or modification on the basis of the utility model belong to practical
Novel protection scope.
Claims (3)
1. the grouting device of a kind of high pressure, big flow includes valve body (5), it is characterised in that: be equipped with inside the valve body (5)
Unidirectional stop grouting plug (6), the unidirectional stop grouting plug (6) are bonded with valve body (5) inner surface, and pressure maintaining room is equipped in the middle part of the valve body (5),
Inner hole is equipped with inch screw thread on the left of the valve body (5), and the inch screw thread screws in cored screw (4) made in Great Britain, described made in Great Britain empty
Heart screw rod (4) outer cover rubber sleeve pipe (3), gum sleeve (3) right side is in conjunction with taper on the left of valve body (5), the rubber
Washer (2) are equipped on the left of gum cover pipe (3), are equipped with locking nut (1) on the left of the washer (2), inner hole is set on the right side of the valve body (5)
There is inch screw thread, and the inch screw thread is connected with one end of external Grouting Pipe (7).
2. the grouting device of high pressure according to claim 1, big flow, it is characterised in that: the English system cored screw (4)
It is screwed and is connect by the inch screw thread of inner hole on the left of valve body (5) with valve body (5).
3. the grouting device of high pressure according to claim 1, big flow, it is characterised in that: one end of the Grouting Pipe (7)
It is screwed and is connect by the inch screw thread of inner hole on the right side of valve body (5) with valve body (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821627184.4U CN208918557U (en) | 2018-10-08 | 2018-10-08 | A kind of grouting device of high pressure, big flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821627184.4U CN208918557U (en) | 2018-10-08 | 2018-10-08 | A kind of grouting device of high pressure, big flow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208918557U true CN208918557U (en) | 2019-05-31 |
Family
ID=66708478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821627184.4U Active CN208918557U (en) | 2018-10-08 | 2018-10-08 | A kind of grouting device of high pressure, big flow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208918557U (en) |
-
2018
- 2018-10-08 CN CN201821627184.4U patent/CN208918557U/en active Active
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