CN2360585Y - Hole sealing appts. for level high pressure spirally spraying pile - Google Patents
Hole sealing appts. for level high pressure spirally spraying pile Download PDFInfo
- Publication number
- CN2360585Y CN2360585Y CN 97249976 CN97249976U CN2360585Y CN 2360585 Y CN2360585 Y CN 2360585Y CN 97249976 CN97249976 CN 97249976 CN 97249976 U CN97249976 U CN 97249976U CN 2360585 Y CN2360585 Y CN 2360585Y
- Authority
- CN
- China
- Prior art keywords
- slurry
- high pressure
- level high
- stopper
- hole sealing
- 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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Images
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- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The utility model relates to a hole sealing device for level high pressure spirally spraying pegs, and belongs to the field of underground engineering. The principle indicated in the figure is that an inner body (5) of a slurry stopper is provided with a group of V-shaped sealing rings (8) for sealing a drill rod, and a radial gap is kept between the inner body (5) of the slurry stopper and an outer casing (4) of the slurry stopper to compensate for eccentricity of the drill rod; during course of rotary spray, a ball valve (14) is opened, displaced bodies flow out along a slurry backward grout pipe (13); after the rotary spray is completed, a plate valve (3) is closed to prevent that formed peg bodies outward flow; the slurry backward grout pipe (13) can also be used for supplying slurry to the insides of the gaps of the peg bodies.
Description
The utility model belongs to underground construction engineering field.
At present, the vertical rotary spray technique of high pressure has obtained extensive use in ground stabilization sealing constructions such as colliery shaft building, city subterranean railway, highrise building ground pit curtain.In the underground construction of some specific conditions, owing to be subjected to the restriction of ground condition, high-pressure rotary-spray can only carry out under the underground water level state.This technology is domestic still to be in conceptual phase, and the horizontal jet grouting stake can pile and a key factor of pile quality quality seal in the aperture.
The purpose of this utility model is exactly to design a kind of port seal that is used for horizontal high-pressure rotary jet grouting pile.
The purpose of this utility model is achieved in that this device has a horizontal channel so that drilling rod passes through, the one end is provided with a coupling flange and is connected with the wall for grouting that needs the soil mass consolidation front end to build in advance, and the sealing device that other end setting can be adjusted offset prevents that slurries from rushing down leakage along drilling-rod external wall.The middle part, horizontal channel is provided with a pulp-expelling valve and a plate valve.The useless slurry that pulp-expelling valve is used for the churning process is produced is discharged, and the adjustment by the plasma discharge pipeline discrepancy in elevation that is attached thereto, guarantees horizontal jet grouting stake pile pressure.After churning is finished, when extracting drilling rod, close plate valve and prevent to form the outer of pile body and rush down.
The utility model has solved horizontal jet grouting stake pile quality problem, reinforces the condition of having created for the horizontal jet grouting stake is applied to the unallowed underground horizontal foundation of ground condition early.
The concrete structure of utility model is provided by following embodiment and accompanying drawing thereof.
Accompanying drawing is according to a kind of sectional drawing that is used for the port seal of horizontal high-pressure rotary jet grouting pile that the utility model proposes.
Below in conjunction with details and the working condition of accompanying drawing detailed description according to the concrete device that the utility model proposes.
Flange (1) gives and being embedded in the wall for grouting, and an end of guiding tube (2) buries bolt (15) and links to each other with flange (1) by giving, and is sealed by an O RunddichtringO (16) between the two.The other end of guiding tube (2) is angled to be stretched in the plate valve (3).The right-hand member of plate valve (3) is grout stopping device shell (4), and the endoporus of grout stopping device shell (4) is all concentric with the endoporus of guiding tube (2).One group of V-shaped seal ring (8) is housed on the grout stopping device endosome (5) is used for sealing drilling rod, prevent that slurries from revealing along drilling rod.V-shaped seal ring (8) can be adjusted by adjusting ring (6) with the elasticity of drilling rod.Grout stopping device endosome (5) nut (7) that is locked is pressed in the grout stopping device shell (4), adopt O RunddichtringO (9) to seal between grout stopping device endosome (5) and the grout stopping device shell (4), design has directly gap mutually to be used to compensate the off-centre of drilling rod between grout stopping device endosome (5) and the grout stopping device shell (4).
In the horizontal jet grouting process, the flashboard (10) in the plate valve (3) is in open mode, and ball valve (14) also is in open mode, and the useless slurry that is displaced by churning high pressure slurries flows out along returning grout pipe (13).After whole horizontal jet grouting stake was finished, when withdrawing from drilling rod, rotary handle (11) was closed plate valve (3), prevented that established pile body slurries from leaking outside.After pile body solidifies certain hour,, can open ball valve (14) and pass through back grout pipe (13) additional slurries in the pile body space for guaranteeing pile quality.
Claims (1)
- A kind of port seal that is used for horizontal high-pressure rotary jet grouting pile, its technical characterictic is: this device has a horizontal channel, horizontal channel one end is provided with a coupling flange and is connected with the wall for grouting that needs the soil mass consolidation front end to build in advance, other end setting can be adjusted the sealing device of offset, and the middle part, horizontal channel is provided with a pulp-expelling valve and a plate valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97249976 CN2360585Y (en) | 1997-11-26 | 1997-11-26 | Hole sealing appts. for level high pressure spirally spraying pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97249976 CN2360585Y (en) | 1997-11-26 | 1997-11-26 | Hole sealing appts. for level high pressure spirally spraying pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2360585Y true CN2360585Y (en) | 2000-01-26 |
Family
ID=33956729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97249976 Expired - Fee Related CN2360585Y (en) | 1997-11-26 | 1997-11-26 | Hole sealing appts. for level high pressure spirally spraying pile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2360585Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101672393A (en) * | 2008-09-11 | 2010-03-17 | 卡特彼勒公司 | Sealing structure and sealing method thereof |
| CN101519879B (en) * | 2008-02-27 | 2011-01-26 | 黄秋生 | Draining and air guide sleeve used for rushing and ejecting entad pile-sinking method |
| CN103132534A (en) * | 2011-11-23 | 2013-06-05 | 上海申通地铁集团有限公司 | Underground construction method of freezing pipe in confined water stratum |
-
1997
- 1997-11-26 CN CN 97249976 patent/CN2360585Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101519879B (en) * | 2008-02-27 | 2011-01-26 | 黄秋生 | Draining and air guide sleeve used for rushing and ejecting entad pile-sinking method |
| CN101672393A (en) * | 2008-09-11 | 2010-03-17 | 卡特彼勒公司 | Sealing structure and sealing method thereof |
| CN101672393B (en) * | 2008-09-11 | 2013-06-05 | 卡特彼勒公司 | Sealing structure and sealing method thereof |
| CN103132534A (en) * | 2011-11-23 | 2013-06-05 | 上海申通地铁集团有限公司 | Underground construction method of freezing pipe in confined water stratum |
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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 |