CN201080793Y - Long spiral mud jacking bore rod - Google Patents
Long spiral mud jacking bore rod Download PDFInfo
- Publication number
- CN201080793Y CN201080793Y CNU2007200919350U CN200720091935U CN201080793Y CN 201080793 Y CN201080793 Y CN 201080793Y CN U2007200919350 U CNU2007200919350 U CN U2007200919350U CN 200720091935 U CN200720091935 U CN 200720091935U CN 201080793 Y CN201080793 Y CN 201080793Y
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- CN
- China
- Prior art keywords
- long spiral
- grouting
- grouting pipe
- long
- slip casting
- 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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Abstract
The utility model discloses a novel long spiral pressure-grouting drill rod, which comprises a long spiral drill rod body 1, and a long spiral drill pit 4, protective plates 6 and reinforced plates 7 are evenly welded on radial circumference of the long spiral drill rod body 1 and the long spiral drill pit 4 so as to form a grouting pipe protection slot, according to the diameter variety of the drill rod, 1-3 grouting pipe protection slots can be evenly arranged on the circumference, the grouting pipe protection slots are filled with grouting pipes and nozzles. When the grouting pipes 2 and the long spiral pressure-grouting drill rod can be drilled to the design elevation synchronously by the utility model, first pressure grouting is performed and then concrete is filled, so as to improve bearing force of end-pile and reduce engineering cost.
Description
Technical field:
The utility model relates to the long screw drill rod technical field that the concrete pile driving construction is used in the building machinery, especially a kind of novel long spiral press slurry drilling rod.
Background technology:
Stake normally is installed on the long-spiral drilling machine and holes with long spiral (CFG) drilling rod for long spiral (CFG) concrete when building operations at present, when creeping into to design elevation, long screw drill rod limit perfusion concrete is moved back on the limit, and the sinking reinforcing cage makes bearing capacity of pile tip lower then.Therefore, must improve bearing capacity by density or the length that increases stake, construction cost is higher.
The utility model content:
In order to solve the problem of above-mentioned existence, the purpose of this utility model provides a kind of novel long spiral press slurry drilling rod, in the time of Grouting Pipe and long spiral press can being starched drilling rod and creep into to design elevation synchronously, carries out earlier pouring into concrete again behind the mud jacking, effectively improve bearing capacity of pile tip, reduce construction costs.
Technical solution adopted in the utility model is: described a kind of novel long spiral press slurry drilling rod, comprise the long screw auger body of rod, long spiral drilling head, evenly be welded with backplate and stiffener towards periphery at the described long screw auger body of rod and long spiral drilling head footpath, constitute slip casting thus and manage and protect groove, manage and protect in its slip casting Grouting Pipe is housed in the groove.
Be welded with shower nozzle in described Grouting Pipe near the first end of long screw auger.
Described Grouting Pipe fixes on slip casting by the partial points solid welding and manages and protects in the groove.
Can manage and protect groove in even 1～3 slip casting that distributes of its circumference according to drilling rod bar footpath difference.
The utility model has the advantages that: the utility model combines long spiral (CFG) bored pile and pile base grouting technology, and the two is combined as a whole.Long spiral is in boring procedure, subsidiary Grouting Pipe enters in the stratum of being crept into together, when reaching design elevation, stop to creep into, carry out slip casing by pressure (cement paste or chemical treatment slurries), behind the mud jacking again the limit move back long screw drill rod limit perfusion concrete, physical or chemical treatment is carried out on stake end stratum, the stake end power of carrying is improved greatly, needn't improve bearing capacity of pile tip by density or the length that increases stake again, thereby reduce construction costs.
Description of drawings:
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the A-A cutaway view Amplified image of Fig. 1.
The specific embodiment:
As shown in Fig. 1,2, the utility model mainly partly is made up of the long screw auger body of rod 1, long spiral drilling head 4 and Grouting Pipe 2 etc.The long screw auger body of rod 1 is connected with long spiral drilling head 4 by several bolts 3, evenly be welded with backplate 6 and stiffener 7 towards periphery at the long screw auger body of rod 1 and long spiral drilling head 4 footpaths, constitute slip casting thus and manage and protect groove, can manage and protect groove in even 1～3 slip casting that distributes of its circumference according to drilling rod bar footpath difference, slip casting is managed and protected groove and is run through whole long spiral press slurry drilling rod.The slip casting that each Grouting Pipe 2 penetrates separately from the drilling rod top is managed and protected in the groove, be fixed in slip casting by local spot welding and manage and protect in the groove.Each Grouting Pipe 2 all is welded with shower nozzle 5 near long spiral drilling head 4 one ends extrudes slurries to guarantee that Grouting Pipe 2 is not stopped up by earth smoothly in Grouting Pipe 2.During use, the utility model is installed on the long-spiral drilling machine, long screw drill rod is connected with the concrete pump truck, and the other end of Grouting Pipe 2 is connected with grouting equipment.Creep into according to construction requirement, Grouting Pipe 2 and shower nozzle 5 enter the stratum synchronously in company with the long screw auger body of rod 1 and long spiral drilling head 4 when creeping into, and stop to creep into when reaching design elevation when creeping into, and carry out slip casing by pressure by Grouting Pipe 2 and shower nozzle 5 this moment.After slip casting finished, the concrete pump truck was pressed into concrete, simultaneously the utility model was slowly extracted, then by former technology sinking reinforcing cage.After finishing this position construction, rig is moved to next position, carry out next working cycles.
Claims (4)
1. a novel long spiral press is starched drilling rod, comprise the long screw auger body of rod (1), long spiral drilling head (4), it is characterized in that: evenly be welded with backplate (6) and stiffener (7) towards periphery at the described long screw auger body of rod (1) and long spiral drilling head (4) footpath, constitute slip casting thus and manage and protect groove, manage and protect in its slip casting Grouting Pipe (2) is housed in the groove.
2. novel long spiral press slurry drilling rod according to claim 1 is characterized in that: be welded with shower nozzle (5) in described Grouting Pipe (2) near long spiral drilling head (4) one ends.
3. novel long spiral press slurry drilling rod according to claim 1, it is characterized in that: described Grouting Pipe (2) fixes on slip casting by the partial points solid welding and manages and protects in the groove.
4. novel long spiral press slurry drilling rod according to claim 1 is characterized in that: can manage and protect groove in even 1～3 slip casting that distributes of its circumference according to drilling rod bar footpath difference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200919350U CN201080793Y (en) | 2007-09-21 | 2007-09-21 | Long spiral mud jacking bore rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200919350U CN201080793Y (en) | 2007-09-21 | 2007-09-21 | Long spiral mud jacking bore rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201080793Y true CN201080793Y (en) | 2008-07-02 |
Family
ID=39614467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200919350U Expired - Fee Related CN201080793Y (en) | 2007-09-21 | 2007-09-21 | Long spiral mud jacking bore rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201080793Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106948768A (en) * | 2017-04-05 | 2017-07-14 | 张腊琴 | A kind of auger stem and steel pipe pile construction method |
-
2007
- 2007-09-21 CN CNU2007200919350U patent/CN201080793Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106948768A (en) * | 2017-04-05 | 2017-07-14 | 张腊琴 | A kind of auger stem and steel pipe pile construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080702 Termination date: 20110921 |