CN207498944U - The guard aperture casing of ultra-deep jet groutinl guide hole - Google Patents
The guard aperture casing of ultra-deep jet groutinl guide hole Download PDFInfo
- Publication number
- CN207498944U CN207498944U CN201721444243.XU CN201721444243U CN207498944U CN 207498944 U CN207498944 U CN 207498944U CN 201721444243 U CN201721444243 U CN 201721444243U CN 207498944 U CN207498944 U CN 207498944U
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- Prior art keywords
- guard aperture
- guide hole
- casing
- ultra
- pipe shaft
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- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The utility model is related to a kind of guard aperture casings of ultra-deep jet groutinl guide hole, including pipe shaft, tube coupling, the pipe shaft is the circular straighttube of both ends open, one end of circular straighttube is fixedly connected with tube coupling, is fitting to connection between two guard aperture casings by the straight tube outer diameter of pipe shaft of a guard aperture casing with the internal diameter of the tube coupling on another pipe shaft.Due to the guide hole guard aperture casing, the full depth setting in guide hole hole, avoids the undergauge of ultra-deep guide hole, caves in and casing and shotcrete pipe is made to be buried the accident generation of locking；The guide hole guard aperture shell material is hard PVC tubing simultaneously, with during jet groutinl fragmentation can be cut by high pressure slurries, casing need not be removed, it can realize the uninterrupted construction of continuous whitewashing, construction efficiency can not only be improved in this way, construction personnel's labor intensity is low, and the guard aperture shell material of fragmentation is on construction quality also without influence.
Description
Technical field
The utility model is related to a kind of slip casting guide holes for foundation basic construction, spray and note more particularly to a kind of ultra-deep
The guard aperture casing of guide hole is starched, belongs to the guard aperture technical field of slip casting guide hole.
Background technology
Jet grouting is to handle mud, silt clay, common when pile foundations and foundation stabilization of cohesive soil to apply
Work method.When constructing using jet grouting, a guide hole is drilled on ground first with engineering driller, then in guide hole
Guard aperture casing is put into, after the porous shotcrete pipe with special nozzle is inserted into design treatment depth in guard aperture casing, passes through peace
Mounted in the special nozzle of drill bit bottom sides, with high-voltage generators such as high-pressure pumps, with the pressure of 40Mpa or so by hardened material
And air is ejected from nozzle, and on one side above carries porous shotcrete pipe, since high pressure jet stream has powerful cutting power,
Therefore the slurries of injection can cut the periphery soil body, and the soil body is under the effects that impact force, centrifugal force and gravity of injection stream, with slurries
It is stirred, and is regularly rearranged in certain puddled soil ratio and quality size, after grout cures, just formed in soil
Variously-shaped reinforcing body.
Existing guard aperture casing is all using whole steel-tube construction, therefore when jet grouting is constructed, porous shotcrete pipe
Above put forward process and must use intermittent mode, i.e., first guard aperture casing is carried to porous shotcrete pipe nozzle top certain distance, then
Shotcrete construction is carried out, when porous shotcrete pipe nozzle location is close to guard aperture sleeve bottom, needs to stop shotcrete construction, reintroduce whole
A antipriming pipe, then on pull out guard aperture casing and shed above ground portion, again by the antipriming pipe with special nozzle in guard aperture casing
After being inserted into last time processing depth, continue to construct, so repeat to construction to complete.Not only construction efficiency is relatively low in this way, Er Qieru
When fruit guard aperture casing promotes excessive from nozzle distance, guide hole undergauge can be caused, caved in, buried antipriming pipe；If guard aperture casing
When promoting too small from nozzle distance, then antipriming pipe dismounting number can be caused excessive, influence construction efficiency；And in construction interval
When, it due to the difference of geological environment, acts that pull out antipriming pipe, casing time variant, also easily generates construction quality problem or even set
Pipe and shotcrete pipe are buried locking.
Chinese patent 201220202115.5 discloses a kind of opposite opened guard aperture casing, as a result of split steel half
Connection bolt between two semicanals is dismantled and can half-and-half dismantle guard aperture casing by pipe structure, can not extract porous shotcrete pipe
In the case of removal guard aperture casing, and porous shotcrete pipe can also be above carried using side, the mode for removing guard aperture casing is promoted on side, real
Guard aperture pipe is removed when property is continuously whitewashed at this stage simultaneously.But it under the complex geological condition unstable compared with hole walls such as thick sand beds, changes
When connecing shotcrete pipe still construction quality and progress are seriously affected often there is a situation where casing and shotcrete pipe are buried locking.Simultaneously
The auxiliary equipment needed with opposite opened set pipe construction is complicated, construction personnel's heavy workload, and labor intensity is higher.
Invention content
Defect present in for the above-mentioned prior art is super the technical problem to be solved by the utility model is to provide one kind
The guard aperture casing of deep jet groutinl guide hole, under the complex geological condition unstable compared with hole walls such as thick sand beds, ultra-deep jet groutinl
In construction, can protect guide hole not undergauge, do not cave in, and improve construction efficiency, without remove guard aperture casing.
In order to solve the above-mentioned technical problem, the technical solution adopted in the utility model is：A kind of ultra-deep jet groutinl guide hole
Guard aperture casing, including pipe shaft, tube coupling, the pipe shaft is the circular straighttube of both ends open, and one end of circular straighttube, which is fixed, to be connected
Tube coupling is connected to, passes through the tube coupling on the straight tube outer diameter and another pipe shaft of the pipe shaft of a guard aperture casing between two guard aperture casings
Internal diameter be fitting to connection.
Further, it is affixed with gluing or screw thread between the straight tube outer diameter of the pipe shaft and the internal diameter of tube coupling.
Further, the guard aperture shell material is hard PVC tubing, can be cut when being placed in jet groutinl by high pressure slurries broken
In the entire guide hole changed.
The beneficial effects of the utility model are：
The guard aperture casing of a kind of ultra-deep jet groutinl guide hole provided by the utility model, due to the guide hole guard aperture casing
Full depth setting, avoids the undergauge of ultra-deep guide hole, caves in and casing and shotcrete pipe is made to be buried the accident of locking in guide hole hole
Occur；The guide hole guard aperture shell material is hard PVC tubing simultaneously, can cut fragmentation by high pressure slurries with during jet groutinl,
Casing need not be removed, the uninterrupted construction of continuous whitewashing can be realized, construction efficiency, construction personnel's labor intensity can not only be improved in this way
Low, the guard aperture shell material of fragmentation is on construction quality also without influence.
Description of the drawings
Fig. 1 is the single-unit structural upright schematic diagram of the guard aperture casing of the ultra-deep jet groutinl guide hole of the utility model；
Fig. 2 is the single-unit structure sectional view of the guard aperture casing of the ultra-deep jet groutinl guide hole of the utility model；
Fig. 3 is the sectional view of the more piece socket of the guard aperture casing of ultra-deep jet groutinl guide hole.
Specific embodiment
The embodiment of the utility model is described in further detail below in conjunction with description of the drawings, but the present embodiment and is not had to
In limitation the utility model, every similar structure using the utility model and its similar variation should all be included in the utility model
Protection domain.
As shown in Figure 1 to Figure 3, the guard aperture casing of the ultra-deep jet groutinl guide hole of the utility model, including pipe shaft 1, tube coupling
2.Pipe shaft 1 is the circular straighttube of both ends open, and one end of circular straighttube is fixedly connected with tube coupling 2.Lead between two guard aperture casings
The internal diameter head and the tail of 1 outer diameter of pipe shaft and the tube coupling 2 on another pipe shaft 1 for crossing a guard aperture casing are fitting to connection.
The internal diameter head and the tail of 1 outer diameter of pipe shaft and larger-diameter tube coupling 2 are fitting to connection affixed using gluing or screw thread.
Guide hole guard aperture shell material is hard PVC tubing, the full depth setting in guide hole hole, can be by high pressure in jet groutinl
Slurries cut fragmentation.It avoids the undergauge of ultra-deep guide hole, cave in and casing and shotcrete pipe is made to be buried the accident generation of locking；Simultaneously
Guide hole guard aperture shell material is hard PVC tubing, fragmentation can be cut by high pressure slurries with during jet groutinl, without removing casing, energy
It realizes the uninterrupted construction of continuous whitewashing, construction efficiency can not only be improved in this way, reduce construction personnel's labor intensity, the guard aperture of fragmentation
Shell material is on construction quality also without influence.
The utility model embodiment with the hard PVC guard aperture casing for the required length being fitting to connection from beginning to end in use, by being put
Enter in the guide hole being drilled with, you can come into effect spray operation.When implementing spray operation, spray pressure should be greater than 10Mpa, lead
Hole guard aperture casing can be cut fragmentation by high pressure slurries, and normal spray operation removes guard aperture casing without independent.
The utility model can be solved under the complex geological condition unstable compared with hole walls such as thick sand beds, and ultra-deep jet groutinl is applied
In work, can protect guide hole not undergauge, do not cave in, and improve construction efficiency, without remove guard aperture casing the technical issues of.
Claims (3)
1. a kind of guard aperture casing of ultra-deep jet groutinl guide hole, including pipe shaft（1）, tube coupling（2）, it is characterised in that：The pipe
Body（1）For the circular straighttube of both ends open, one end of circular straighttube is fixedly connected with tube coupling（2）, lead between two guard aperture casings
Cross the pipe shaft of a guard aperture casing（1）Straight tube outer diameter and another pipe shaft（1）On tube coupling（2）Internal diameter be fitting to connection.
2. the guard aperture casing of ultra-deep jet groutinl guide hole according to claim 1, it is characterised in that：The pipe shaft（1）
Straight tube outer diameter and tube coupling（2）Internal diameter between with gluing or screw thread it is affixed.
3. the guard aperture casing of ultra-deep jet groutinl guide hole according to claim 1 or 2, it is characterised in that：The guard aperture set
Tube material is hard PVC tubing, can be cut when being placed in jet groutinl by high pressure slurries in the entire guide hole of fragmentation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721444243.XU CN207498944U (en) | 2017-11-02 | 2017-11-02 | The guard aperture casing of ultra-deep jet groutinl guide hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721444243.XU CN207498944U (en) | 2017-11-02 | 2017-11-02 | The guard aperture casing of ultra-deep jet groutinl guide hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207498944U true CN207498944U (en) | 2018-06-15 |
Family
ID=62502574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721444243.XU Active CN207498944U (en) | 2017-11-02 | 2017-11-02 | The guard aperture casing of ultra-deep jet groutinl guide hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207498944U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114086545A (en) * | 2021-11-29 | 2022-02-25 | 上海隧道工程有限公司 | Ultra-deep MJS construction method |
-
2017
- 2017-11-02 CN CN201721444243.XU patent/CN207498944U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114086545A (en) * | 2021-11-29 | 2022-02-25 | 上海隧道工程有限公司 | Ultra-deep MJS construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wang Zhongbing Inventor after: Cao Feng Inventor after: Chen Tao Inventor before: Wang Zhongbing Inventor before: Cao Feng Inventor before: Chen Tao |
|
| CB03 | Change of inventor or designer information |