CN215486020U - Tunnel drilling slip casting structure - Google Patents
Tunnel drilling slip casting structure Download PDFInfo
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- CN215486020U CN215486020U CN202121959011.4U CN202121959011U CN215486020U CN 215486020 U CN215486020 U CN 215486020U CN 202121959011 U CN202121959011 U CN 202121959011U CN 215486020 U CN215486020 U CN 215486020U
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- grouting
- pipe
- outer pipe
- sleeve valve
- guide ring
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Abstract
The application discloses a tunnel drilling grouting structure, which comprises a grouting outer pipe, wherein the grouting outer pipe is provided with a grout discharging hole, and a sleeve valve sleeve is sleeved at the grout discharging hole of the grouting outer pipe; the grouting outer pipe is provided with guide rings on the upper side and the lower side of the sleeve valve sleeve, and one side of each guide ring, facing the sleeve valve sleeve, is provided with a flow guide surface which is obliquely arranged; the guide ring is rotatably arranged on the grouting outer pipe; an annular groove is formed in the grouting outer pipe, and the guide ring is provided with a sliding block horizontal to the annular groove; a grouting core pipe penetrates through the grouting outer pipe, the grouting core pipe is provided with a grouting hole, and sealing rings are arranged on the upper side and the lower side of the grouting hole of the grouting core pipe; the sealing ring is detachably connected with the grouting core pipe. The utility model provides a sleeve valve pipe sets up the guide ring on the slip casting outer tube, and the guide ring guides the thick liquid that erupts, and the direction towards opposite direction is concentrated and is spouted to this improves sleeve valve pipe slip casting effect.
Description
Technical Field
The application relates to the field of tunnel construction, in particular to a tunnel drilling and grouting structure.
Background
In tunnel construction, a sleeve valve pipe grouting method is generally adopted to reinforce the tunnel.
At present, a sleeve valve pipe mainly comprises a grouting outer pipe extending into a grouting drill hole and a grouting core pipe penetrating through the grouting outer pipe, wherein a grouting hole is formed in the pipe wall of the lower part of the grouting core pipe, and sealing rings are arranged on the upper side and the lower side of the grouting hole of the grouting core pipe; the wall of the grouting outer pipe is provided with a grout outlet, and the grout outlet is sleeved with an elastic sleeve valve sleeve.
When the sleeve valve pipe is used for grouting, grout is injected through the grouting core pipe, the sleeve valve sleeve is opened from the inside to the outside by the grout for grouting, and after grouting is stopped, the sleeve valve sleeve covers the grout discharging hole to prevent the grout from flowing backwards.
The technical scheme has the following defects that during grouting, slurry is blocked by the sleeve valve sleeves to be influenced, and the grouting direction is simply sprayed upwards or downwards to influence the grouting filling effect.
SUMMERY OF THE UTILITY MODEL
In order to improve sleeve valve pipe slip casting effect, this application provides a tunnel drilling slip casting structure.
The application provides a tunnel drilling slip casting structure adopts following technical scheme:
a tunnel drilling grouting structure comprises a grouting outer pipe, wherein the grouting outer pipe is provided with a grout discharging hole, and a sleeve valve sleeve is sleeved at the grout discharging hole of the grouting outer pipe; the grouting outer pipe is provided with guide rings on the upper side and the lower side of the sleeve valve sleeve, and one side of each guide ring, facing the sleeve valve sleeve, is provided with a flow guide surface which is obliquely arranged.
By adopting the technical scheme, when grouting is carried out through the sleeve valve pipe, grout is injected into the grouting outer pipe, then the sleeve valve sleeves are squeezed open, the grout is sprayed out from the end parts of the sleeve valve sleeves in an inclined upward or inclined downward manner under the restraint of the sleeve valve sleeves, and then the grout is intensively sprayed in opposite directions under the guide of the guide rings on the two sides, so that the grouting effect of the sleeve valve pipe is improved.
Optionally, the guide ring is rotatably mounted on the grouting outer pipe.
Through adopting above-mentioned technical scheme, under the impact of thick liquid, it is automatic to order about the guide ring, makes the thick liquid be annular slip casting at last, and sleeve valve pipe slip casting is more even.
Optionally, an annular groove is formed in the outer grouting pipe, and the guide ring is provided with a sliding block horizontal to the annular groove.
Through adopting above-mentioned technical scheme, slider and ring channel cooperation make the guide ring rotate for the slip casting outer tube.
Optionally, the wall of the arc-shaped groove far away from the sleeve valve sleeve is provided with a wave surface.
Through adopting above-mentioned technical scheme, set up the annular groove and keep away from one side of sleeve valve cover to the wave face, when making sleeve valve pipe slip casting, under the fluctuation from top to bottom of guide ring, increase the slip casting scope, and then improve the slip casting effect.
Optionally, the guide surface of the guide ring is fixedly connected with guide vanes which are obliquely arranged.
By adopting the technical scheme, the slurry impacts the flow deflector, and the flow deflector transmits impact force to the guide ring, so that the guide ring is driven to rotate around the sleeve valve pipe.
Optionally, a grouting core pipe penetrates through the grouting outer pipe, the grouting core pipe is provided with a grouting hole, and sealing rings are arranged on the upper side and the lower side of the grouting hole of the grouting core pipe.
By adopting the technical scheme, the sealing rings are abutted against the inner wall of the grouting outer pipe, so that the upper sealing ring and the lower sealing ring are relatively in a sealing state, and a foundation is provided for sectional grouting.
Optionally, the sealing ring is detachably connected with the grouting core pipe.
Through adopting above-mentioned technical scheme, the sealing washer rubs with slip casting outer tube inner wall always in using, and the periodic maintenance changes the sealing washer, can effectively ensure and seal the effect.
Optionally, a conical end cap is mounted at the bottom of the grouting outer pipe.
Through adopting above-mentioned technical scheme, the convenient slip casting outer tube of toper end cap stretches into in the drilling.
In summary, the present application includes at least one of the following beneficial technical effects:
1. according to the sleeve valve pipe, the guide ring is arranged on the grouting outer pipe, and guides the sprayed grout to be sprayed in a centralized manner in opposite directions, so that the grouting effect of the sleeve valve pipe is improved;
2. install on the slip casting outer tube through rotating the guide ring, under the impact of thick liquid, it is automatic to order about the guide ring, makes the thick liquid be annular slip casting at last, and sleeve valve pipe slip casting is more even.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present application.
Fig. 2 is a schematic structural diagram of a guide ring in the embodiment of the present application.
Description of reference numerals:
1. grouting an outer pipe; 11. a tapered end cap; 12. an annular groove; 2. grouting a core pipe; 21. grouting holes; 3. sleeve valve housings; 4. a seal ring; 5. a guide ring; 51. and a flow deflector.
Detailed Description
The present application is described in further detail below with reference to the attached drawings.
The embodiment of the application discloses tunnel drilling slip casting structure. Referring to fig. 1, tunnel drilling slip casting structure includes vertical slip casting outer tube 1 of arranging and wears to establish slip casting core pipe 2 in slip casting outer tube 1, and open setting in slip casting outer tube 1 and slip casting core pipe 2 top, the bottom seals the setting, and wherein the bottom of slip casting outer tube 1 has set firmly toper end cap 11 to slip casting outer tube 1 stretches into in the drilling.
The body of slip casting outer tube 1 is equipped with row thick liquid hole on the equipartition, and slip casting outer tube 1 overlaps in row thick liquid hole department and is equipped with elastic sleeve valve barrel 3, blocks up row thick liquid hole through sleeve valve barrel 3. The lower pipe wall of the grouting core pipe 2 is provided with a grouting hole 21, the upper side and the lower side of the grouting hole 21 of the grouting core pipe 2 are provided with sealing rings 4, and the sealing rings 4 are abutted against the inner wall of the grouting outer pipe 1, so that the upper sealing ring 4 and the lower sealing ring 4 are relatively in a sealing state, and a foundation is provided for sectional grouting. The sealing ring 4 and the grouting core pipe 2 are detachably connected, and the connection mode can be selected to be threaded connection.
Referring to fig. 1 and 2, guide rings 5 are arranged on the upper side and the lower side of the sleeve valve sleeve 3 on the pipe body of the grouting outer pipe 1, the guide rings 5 extend towards one side of the sleeve valve sleeve 3 in an inclined manner to form a guide wall, and the inner side of the guide wall is a guide surface; the diversion surface is half-coated on the end part of the sleeve valve sleeve 3, and a gap is reserved between the diversion surface and the end part of the sleeve valve sleeve 3 along the radial direction of the sleeve valve pipe.
When grouting is carried out through the sleeve valve pipe, grout is injected into the grouting core pipe 2, enters the grouting outer pipe 1 from the grouting hole 21 of the grouting core pipe 2, then the sleeve valve sleeves 3 are extruded, the grout is sprayed out from the end parts of the sleeve valve sleeves 3 in an inclined upward or inclined downward manner under the constraint of the sleeve valve sleeves 3, and then the grout is intensively sprayed in opposite directions under the guide of the guide rings 5 at the two sides, so that the grouting effect of the sleeve valve pipe is improved.
Further, a guide ring 5 is rotatably arranged on the grouting outer pipe 1, and a guide surface of the guide ring 5 is fixedly connected with a guide vane 51 which is obliquely arranged; therefore, under the impact of the grout, the guide ring 5 is driven to be automatic, so that the grout is finally injected annularly, and the sleeve valve pipes are injected more uniformly.
Specifically, annular grooves 12 are formed in the upper side and the lower side of the sleeve valve sleeve 3 on the grouting outer pipe 1, and a slide block matched with the annular grooves 12 is fixedly connected to the inner ring of the guide ring 5, so that the guide ring 5 rotates relative to the grouting outer pipe 1. The side of the annular groove 12 far away from the sleeve valve sleeve 3 is a wavy surface, so that when the sleeve valve pipe is grouted, the grouting range is enlarged under the vertical fluctuation of the guide ring 5, and the grouting effect is further improved.
The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the appended claims.
Claims (8)
1. The utility model provides a tunnel drilling slip casting structure which characterized in that: the grouting device comprises a grouting outer pipe (1), wherein the grouting outer pipe (1) is provided with a grout discharging hole, and a sleeve valve sleeve (3) is sleeved at the grout discharging hole of the grouting outer pipe (1); the grouting outer pipe (1) is provided with guide rings (5) on the upper side and the lower side of the sleeve valve sleeves (3), and one side, facing the sleeve valve sleeves (3), of each guide ring (5) is provided with a flow guide surface which is obliquely arranged.
2. The tunnel boring grouting structure of claim 1, wherein: the guide ring (5) is rotatably arranged on the grouting outer pipe (1).
3. The tunnel boring grouting structure of claim 2, wherein: an annular groove (12) is formed in the grouting outer pipe (1), and the guide ring (5) is provided with a sliding block horizontal to the annular groove (12).
4. The tunnel boring grouting structure of claim 3, wherein: the groove wall of the annular groove (12) far away from the sleeve valve sleeve (3) is a wavy surface.
5. The tunnel boring grouting structure of claim 2, wherein: the guide surface of the guide ring (5) is fixedly connected with guide vanes (51) which are obliquely arranged.
6. The tunnel boring grouting structure of claim 1, wherein: the grouting outer tube (1) is internally provided with a grouting core tube (2) in a penetrating mode, the grouting core tube (2) is provided with a grouting hole (21), and sealing rings (4) are arranged on the upper side and the lower side of the grouting hole (21) of the grouting core tube (2).
7. The tunnel boring grouting structure of claim 6, wherein: the sealing ring (4) is detachably connected with the grouting core pipe (2).
8. The tunnel boring grouting structure of claim 1, wherein: and a conical end cap (11) is installed at the bottom of the grouting outer pipe (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121959011.4U CN215486020U (en) | 2021-08-19 | 2021-08-19 | Tunnel drilling slip casting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121959011.4U CN215486020U (en) | 2021-08-19 | 2021-08-19 | Tunnel drilling slip casting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215486020U true CN215486020U (en) | 2022-01-11 |
Family
ID=79763411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121959011.4U Active CN215486020U (en) | 2021-08-19 | 2021-08-19 | Tunnel drilling slip casting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215486020U (en) |
-
2021
- 2021-08-19 CN CN202121959011.4U patent/CN215486020U/en active Active
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