CN1475634A - Slip casting striring bottom expanding drill rod central pumping concrete piling method and its device - Google Patents
Slip casting striring bottom expanding drill rod central pumping concrete piling method and its device Download PDFInfo
- Publication number
- CN1475634A CN1475634A CNA031337287A CN03133728A CN1475634A CN 1475634 A CN1475634 A CN 1475634A CN A031337287 A CNA031337287 A CN A031337287A CN 03133728 A CN03133728 A CN 03133728A CN 1475634 A CN1475634 A CN 1475634A
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- drill bit
- grouting
- fluid pressure
- pressure line
- slip casting
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Abstract
A method for forming a pile includes drilling a hole to predefined depth, pouring slurry whole stirring to enlarge the pile pedestal, and pouring concrete to form a pile. Its apparatus is composed of power head, hydraulic rotary jointer for pouring slurry, spiral drilling rod, and stirring drill bit for enlarge pedestal. Its advantage is high load-bearing power of pile (increased by 2-4 times).
Description
Technical field: the present invention relates to a kind of job practices and device thereof of building pile foundation, be specially slip casting and stir expansion subdrilling bar center pump-injecting concrete piling method and device thereof.
Background technology: the job practices of building pile foundation generally is to adopt the method for superfluidity concrete and perfusion pile thereof at present, this method is to adopt superfluidity concrete long-spiral drilling machine and drilling tool that the superfluidity concrete for preparing is pressed in the hole by drilling tool, form concrete dado, the superfluidity concrete is irritated extremely a little more than position that the hole danger of collapsing is arranged or full hole, propose drilling rod then, reinforcing cage is pressed in the concrete to the design elevation pile.This job practices has can be with stake native compacted compacting of week, and the superfluidity concrete can ooze to stake Zhou Tukuo, and the improvement soil layer property stop advantages such as broken pile, but its pile body is a uniform section, and the bearing capacity of stake end is poor.
Summary of the invention: the objective of the invention is to propose a kind of slip casting and stir expansion subdrilling bar center pump-injecting concrete piling method and device thereof, overcome the method for existing superfluidity concrete and perfusion pile thereof, pile body is a uniform section, the shortcoming of bearing capacity of pile tip difference.
Major technique content of the present invention: when spiral drilling machine gets into predetermined projected depth, carry out slip casting by grouting pipeline, fluid pressure line and stir the expansion end, with the stake end enlarge reach design section after, by concrete pipeline, unit head, auger stem, drill bit pump-injecting concrete pile.
The equipment of realizing this method is that expansion subdrilling bar center pump-injecting concrete pile making device is stirred in slip casting.This device is by unit head, injection slurry pushes back adapter, auger stem, bottom-grouting-enlarged stirring drill bit constitutes, injection slurry pushes back the hollow output shaft upper end that adapter is installed in unit head, the hollow output shaft lower end is connected with auger stem by flange, the auger stem lower end is connected with bottom-grouting-enlarged stirring drill bit, injection slurry pushes back adapter and is provided with grouting pipeline, fluid pressure line and concrete pipeline, grouting pipeline, fluid pressure line is communicated with grouting pipeline and fluid pressure line in the hollow output shaft wall of unit head respectively, grouting pipeline in the hollow output shaft wall and fluid pressure line by flange overhanging and with the grouting pipeline that is laid on the auger stem outer wall, fluid pressure line is communicated with, its lower end respectively with bottom-grouting-enlarged stirring drill bit on grouting pipeline, fluid pressure line is communicated with, bottom-grouting-enlarged stirring drill bit is by flange, drill bit stamen pipe, oil cylinder, the movable shear bar that expands, knife rest, convertible apex point, the slip casting nozzle is formed, drill bit stamen pipe is connected with drilling rod by flange, drill bit stamen pipe both sides are connected with oil cylinder one end by fixed support, the oil cylinder other end flexibly connects by bearing pin and the movable shear bar that expands, drill bit stamen pipe two bottom sides is welded with knife rest, movable expansion shear bar flexibly connects by bearing pin in the middle of being positioned at knife rest, the knife rest bottom outside is provided with the slip casting nozzle, and drill bit stamen pipe bottom is convertible apex point.
Technique effect of the present invention is, the building pile foundation that adopts slip casting stirring expansion subdrilling bar center pump-injecting concrete piling method and device thereof to finish, the pile body bottom can be enlarged, the 2-4 that its bearing capacity of pile tip is improved be original uniform section stake end doubly, has the saving constructional materials, reduce advantages such as construction cost, having overcome existing superfluidity concrete and perfusion piling method thereof and having adopted superfluidity concrete long-spiral drilling machine and drilling tool job practices pile body is prismatic shortcoming.
Description of drawings:
Fig. 1 stirs the structural representation that expands subdrilling bar center pump-injecting concrete pile making device for slip casting of the present invention.
Specific implementation method:
Accompanying drawings realizes the structure of the inventive method equipment therefor.By unit head 2, injection slurry pushes back adapter 1, auger stem 3, bottom-grouting-enlarged stirring drill bit 4 constitutes, injection slurry pushes back the hollow output shaft upper end that adapter is installed in unit head, the hollow output shaft lower end is connected with auger stem by flange 17, the auger stem lower end is connected with bottom-grouting-enlarged stirring drill bit 4, injection slurry pushes back the adapter upper end and is provided with concrete pipeline 5, grouting pipeline 6, fluid pressure line 7, grouting pipeline 6, fluid pressure line 7 respectively with the hollow output shaft wall of unit head in grouting pipeline 15, fluid pressure line 16 is communicated with, grouting pipeline in the hollow output shaft wall, fluid pressure line by flange 17 overhanging and with the grouting pipeline 18 that is laid on the auger stem outer wall, fluid pressure line 19 is communicated with, grouting pipeline 18 on the auger stem outer wall, fluid pressure line 19 lower ends respectively with bottom-grouting-enlarged stirring drill bit on grouting pipeline 20, fluid pressure line 21 connects, bottom-grouting-enlarged stirring drill bit is by flange 8, drill bit stamen pipe 9, oil cylinder 10, the movable shear bar 11 that expands, knife rest 13, convertible apex point 14, slip casting nozzle 12 is formed, drill bit stamen pipe is connected with drilling rod by flange 8, drill bit stamen pipe both sides are connected with an end of oil cylinder 10 by fixed support, the other end of oil cylinder 10 flexibly connects by bearing pin and the movable shear bar that expands, drill bit stamen pipe two bottom sides is welded with knife rest, movable expansion shear bar flexibly connects by bearing pin in the middle of being positioned at knife rest, the knife rest bottom outside is provided with slip casting nozzle 12, and drill bit stamen pipe bottom is provided with convertible apex point 14.
The using method of this device of accompanying drawings, this device and the supporting use of spiral drilling machine, when rig gets into predetermined projected depth, cement paste, hydraulic oil pushes back grouting pipeline in the adapter by injection slurry respectively, fluid pressure line, grouting pipeline in the unit head hollow output shaft wall, fluid pressure line, grouting pipeline on the auger stem outer wall, fluid pressure line, cement paste and hydraulic oil are sent into slip casting nozzle and oil cylinder respectively, slip casting nozzle whitewashing when cement paste reaches certain pressure, cylinder action when hydraulic oil reaches certain pressure, the outside stretching, extension of shear bar is expanded in the promotion activity and the expansion end is stirred in rotation realization slip casting, the pile body bottom is enlarged, and concrete injects pile by concrete pipeline 5.
Claims (2)
1, slip casting is stirred and is expanded subdrilling bar center pump-injecting concrete piling method, when it is characterized in that spiral drilling machine gets into predetermined projected depth, carry out slip casting by grouting pipeline, fluid pressure line and stir the expansion end, after making an end reach design expansion section, by concrete pipeline, unit head, auger stem, drill bit pump-injecting concrete pile.
2, the equipment that method is used described in the claim 1 is that expansion subdrilling bar center pump-injecting concrete pile making device is stirred in slip casting, it is characterized in that by unit head, injection slurry pushes back adapter, auger stem, bottom-grouting-enlarged stirring drill bit constitutes, injection slurry pushes back the hollow output shaft upper end that adapter is installed in unit head, the hollow output shaft lower end is connected with auger stem by flange, the auger stem lower end is connected with bottom-grouting-enlarged stirring drill bit, injection slurry pushes back adapter and is provided with grouting pipeline, fluid pressure line and concrete pipeline, grouting pipeline, fluid pressure line respectively with the hollow output shaft wall of unit head in grouting pipeline and hydraulic communication, grouting pipeline in the hollow output shaft wall and fluid pressure line by flange overhanging and be laid on grouting pipeline on the auger stem outer wall, fluid pressure line is communicated with, grouting pipeline, the fluid pressure line lower end respectively with bottom-grouting-enlarged stirring drill bit on grouting pipeline, fluid pressure line is communicated with, bottom-grouting-enlarged stirring drill bit is by flange, drill bit stamen pipe, oil cylinder, the movable shear bar that expands, knife rest, convertible apex point, the slip casting nozzle is formed, drill bit stamen pipe is connected with drilling rod by flange, drill bit stamen pipe both sides are connected with oil cylinder one end by fixed support, the oil cylinder other end flexibly connects by bearing pin and the movable shear bar that expands, drill bit stamen pipe two bottom sides is welded with knife rest, movable expansion shear bar flexibly connects by bearing pin in the middle of being positioned at knife rest, the knife rest bottom outside is provided with the slip casting nozzle, and drill bit stamen pipe bottom is convertible apex point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031337287A CN1475634A (en) | 2003-07-13 | 2003-07-13 | Slip casting striring bottom expanding drill rod central pumping concrete piling method and its device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031337287A CN1475634A (en) | 2003-07-13 | 2003-07-13 | Slip casting striring bottom expanding drill rod central pumping concrete piling method and its device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1475634A true CN1475634A (en) | 2004-02-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA031337287A Pending CN1475634A (en) | 2003-07-13 | 2003-07-13 | Slip casting striring bottom expanding drill rod central pumping concrete piling method and its device |
Country Status (1)
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| CN (1) | CN1475634A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101319499B (en) * | 2007-06-07 | 2012-03-28 | 刘润郊 | Pile forming method and device for screwed pedestal pile with large flow concrete filled by hole drilling pump |
| CN102677666A (en) * | 2012-05-03 | 2012-09-19 | 山东鸿泰建设集团有限公司 | Concrete piling process and drilling machine special for same |
| CN103032030A (en) * | 2013-01-15 | 2013-04-10 | 江苏汤辰机械装备制造有限公司 | Drill bit of pile machine |
| CN103821137A (en) * | 2014-03-27 | 2014-05-28 | 江西中恒岩土工程技术有限公司 | Construction method and device for long auger drilling, rock embedding, bottom expanding and press-casting pile |
| CN105951751A (en) * | 2016-05-09 | 2016-09-21 | 江苏鸿基节能新技术股份有限公司 | Triplet vertical component construction device, combination body and method |
-
2003
- 2003-07-13 CN CNA031337287A patent/CN1475634A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101319499B (en) * | 2007-06-07 | 2012-03-28 | 刘润郊 | Pile forming method and device for screwed pedestal pile with large flow concrete filled by hole drilling pump |
| CN102677666A (en) * | 2012-05-03 | 2012-09-19 | 山东鸿泰建设集团有限公司 | Concrete piling process and drilling machine special for same |
| CN102677666B (en) * | 2012-05-03 | 2014-11-26 | 山东鸿泰建设集团有限公司 | Concrete piling process and drilling machine special for same |
| CN103032030A (en) * | 2013-01-15 | 2013-04-10 | 江苏汤辰机械装备制造有限公司 | Drill bit of pile machine |
| CN103821137A (en) * | 2014-03-27 | 2014-05-28 | 江西中恒岩土工程技术有限公司 | Construction method and device for long auger drilling, rock embedding, bottom expanding and press-casting pile |
| CN103821137B (en) * | 2014-03-27 | 2016-03-23 | 江西中恒地下空间科技有限公司 | The construction method of guncreting pile at the bottom of the embedding rock of a kind of long auger, expansion |
| CN105951751A (en) * | 2016-05-09 | 2016-09-21 | 江苏鸿基节能新技术股份有限公司 | Triplet vertical component construction device, combination body and method |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |