CN202280426U - Water-air-injected drill of two-way cement-soil mixing pile machine - Google Patents
Water-air-injected drill of two-way cement-soil mixing pile machine Download PDFInfo
- Publication number
- CN202280426U CN202280426U CN2011204442417U CN201120444241U CN202280426U CN 202280426 U CN202280426 U CN 202280426U CN 2011204442417 U CN2011204442417 U CN 2011204442417U CN 201120444241 U CN201120444241 U CN 201120444241U CN 202280426 U CN202280426 U CN 202280426U
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- drill
- core pipe
- drill bit
- interior
- core tube
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- Expired - Fee Related
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- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Earth Drilling (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The utility model provides a water-air-injected drill of a two-way cement-soil mixing pile machine. The water-air-injected drill comprises an inner drill and an outer drill which are arranged on the lower ends of an inner drill rod and an outer drill rod, wherein the outer drill comprises an outer drill core tube, at least an upper layer and a lower layer of mixing blades are arranged on the outer drill core tube, the upper end of the outer drill core tube is connected with the outer drill rod, the inner drill comprises an inner drill core tube, the upper end of the inner drill core tube is connected with the inner drill rod, at least an upper layer and a lower layer of blades are arranged on the inner drill core tube, a sealing device is arranged between the lower end of the outer drill core tube and the inner drill core tube, a water-air-injected nozzle is arranged on the outer drill core tube above the lower layer of the mixing blades of the outer drill, and an exit for injecting cement slurry is arranged on the inner drill core tube above the lower layer of the mixing blades of the inner drill. When cement powder is used for piling, the crust layer of the earth surface has low water content, so that the problem of piling quality can be solved by water injection; when cement slurry is adopted for piling, the deeper part of the pile is short of air curing, so that the problem of deep piling quality can be solved by air injection; and the water-air-injected drill can ensure the grown pile quality of the whole pile of the two-way cement-soil mixing pile, thus the construction efficiency can be greatly improved.
Description
Technical field
The utility model relates to a kind of subgrade treatment facility, particularly a kind of water filling pneumatic drill head of cement-soil bidirectional stirring pile machine.
Background technology
China is coastal, the river basin often distributes soft foundation, and under dynamic actions such as load, circulation, vehicle, foundation settlement is the principal mode of foundation failure, often causes the quality problems of speedway, railway, airport, harbour.Using maximum methods in the whole bag of tricks of soft soil foundation is to select composite foundation for use.The bi-directional cement soil mixing pile form of being selected for use in the processing soft soil will improve the intensity of composite foundation greatly.But when adopting bi-directional cement soil mixing pile, have following defective, when adopting cement flour, because there is crust layer on the face of land, water content is low, and is bad at this section pile-forming effect; When adopting cement paste, because the deep cement paste lacks air care, pile quality is affected; The angle that inside and outside stirring vane and horizontal direction are provided with is improper, makes that pressure ash or grouting result are bad, and pile quality is exerted an influence, and the load to the stake machine produces unnecessary increase simultaneously; Because the nozzle location of spraying cement powder or cement paste is provided with improperly, be prone to produce the plugging phenomenon in addition.
Summary of the invention
The technical problem that the utility model will solve is the deficiency to prior art, is to adopt cement flour or cement paste can both guarantee that stake grows up to quality of pile and alleviates the water filling pneumatic drill head of the cement-soil bidirectional stirring pile machine that construction machinery loads no matter proposed a kind of entirely.
The technical problem that the utility model will solve realizes through following technical scheme; A kind of water filling pneumatic drill head of cement-soil bidirectional stirring pile machine comprises the inside and outside drill bit that is contained in inside and outside drilling rod lower end, is characterized in: outer drill bit comprises the outer core pipe that bores; Bore outside and be provided with two-layer stirring vane up and down on the core pipe at least; Outer upper end of boring the core pipe is connected with outer drilling rod, bores the core pipe in interior drill bit comprises, the upper end of interior brill core pipe is connected with interior drilling rod; On interior brill core pipe, be provided with two-layer blade up and down at least; Be provided with sealing device between the lower end of outer brill core pipe and the interior brill core pipe, the water filling gas jets is equipped with at the outer brill core pipe place of drill bit lower floor stirring vane top outside, and the outlet of spraying cement powder slurry is arranged on the interior brill core pipe of interior drill bit lower leave top.
The technical problem that the utility model will solve can also further realize through following technical scheme; The upper strata stirring vane of outer drill bit is that level is to the firming blade that is provided with; Stirring vane below the stirring vane of outer drill bit upper strata is cut native blade for just changeing, and just changeing the cutting angle degree of cutting native blade is 8 ~ 15 °; Blade on the interior drill bit all is set to counter-rotating and cuts native blade, and the cutting angle degree that native blade is cut in counter-rotating is 8 ~ 15 °.
The drill bit of the utility model is the bi-directional cement soil mixing pile machine drill bit, at spraying cement powder or water spray during mud, utilizes between the inside and outside drilling rod space to spray water through the water filling gas jets or jet; The stirring blade of outer rod bit is set to level and presses ash or mud jacking, when adopting the cement flour pile, because the crust layer water content on the face of land is low, solves top pile quality problem through water filling; When adopting the cement paste pile,, solve deep pile quality problem through gas injection because the deep of stake lacks air care; Can guarantee that through said method the full stake of bi-directional cement soil mixing pile grows up to quality of pile; Be difficult for plugging simultaneously, increase the cement flour of ejection or the stirring number of times of cement paste, make efficiency of construction and pile quality further improve.
Description of drawings
Fig. 1 is the structure diagram of the utility model drill bit.
The specific embodiment
A kind of water filling pneumatic drill head of cement-soil bidirectional stirring pile machine; Comprise the inside and outside drill bit that is contained in inside and outside drilling rod lower end; Outer drill bit comprises the outer core pipe 4 that bores, and bores outside and is provided with two-layer stirring vane up and down on the core pipe 4 at least, and the upper end of boring core pipe 4 outward is connected with outer drilling rod 1; In comprising, bores on interior drill bit core pipe 8; In bore core pipe 8 the upper end be connected with interior drilling rod 2, two-layer blade about on interior brill core pipe 8, being provided with at least bores outward between lower end and the interior brill core pipe 8 of core pipe 4 and is provided with sealing device 7; Water filling gas jets 5 is equipped with at outer brill core pipe 4 places of drill bit lower floor stirring vane 6 tops outside, and the outlet 9 of spraying cement powder slurry is arranged on the interior brill core pipe 8 of interior drill bit lower leave 10 tops.
The upper strata stirring vane 3 of outer drill bit is the firming blade of level to setting, and the stirring vane of outer drill bit upper strata stirring vane below 3 cut native blade for just changeing, and just changeing the cutting angle degree of cutting native blade is 8 ~ 15 °; Blade on the interior drill bit all is set to counter-rotating and cuts native blade, and the cutting angle degree that native blade is cut in counter-rotating is 8 ~ 15 °.
Claims (2)
1. the water filling pneumatic drill head of a cement-soil bidirectional stirring pile machine comprises the inside and outside drill bit that is contained in inside and outside drilling rod lower end, it is characterized in that: outer drill bit comprises the outer core pipe that bores; Bore outside and be provided with two-layer stirring vane up and down on the core pipe at least; Outer upper end of boring the core pipe is connected with outer drilling rod, bores the core pipe in interior drill bit comprises, the upper end of interior brill core pipe is connected with interior drilling rod; On interior brill core pipe, be provided with two-layer blade up and down at least; Be provided with sealing device between the lower end of outer brill core pipe and the interior brill core pipe, the water filling gas jets is equipped with at the outer brill core pipe place of drill bit lower floor stirring vane top outside, and the outlet of spraying cement powder slurry is arranged on the interior brill core pipe of interior drill bit lower leave top.
2. the water filling pneumatic drill head of cement-soil bidirectional stirring pile machine according to claim 1; It is characterized in that: the upper strata stirring vane of outer drill bit is that level is to the firming blade that is provided with; Stirring vane below the stirring vane of outer drill bit upper strata is cut native blade for just changeing, and just changeing the cutting angle degree of cutting native blade is 8 ~ 15 °; Blade on the interior drill bit all is set to counter-rotating and cuts native blade, and the cutting angle degree that native blade is cut in counter-rotating is 8 ~ 15 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204442417U CN202280426U (en) | 2011-11-11 | 2011-11-11 | Water-air-injected drill of two-way cement-soil mixing pile machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204442417U CN202280426U (en) | 2011-11-11 | 2011-11-11 | Water-air-injected drill of two-way cement-soil mixing pile machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202280426U true CN202280426U (en) | 2012-06-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204442417U Expired - Fee Related CN202280426U (en) | 2011-11-11 | 2011-11-11 | Water-air-injected drill of two-way cement-soil mixing pile machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202280426U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105019459A (en) * | 2015-07-27 | 2015-11-04 | 周兆弟 | Drill rod feeding device of cement mixing pile driver |
| CN106703705A (en) * | 2016-12-09 | 2017-05-24 | 山东省建筑科学研究院 | Combined type drill applicable to high-spray stirring cement pile |
| CN109930596A (en) * | 2019-04-09 | 2019-06-25 | 沙焕焕 | A kind of construction method of cement earth pile |
| CN111577144A (en) * | 2020-05-09 | 2020-08-25 | 河海大学 | Bidirectional stirring pile stirring head with mud jacking function |
| WO2022057437A1 (en) * | 2020-09-15 | 2022-03-24 | 上海强劲地基工程股份有限公司 | Stirring pile construction apparatus provided with stirring cage |
| CN115488144A (en) * | 2022-09-23 | 2022-12-20 | 同济大学 | In-situ repair device and equipment for double-pipe double-channel liquid adding, powder spraying and stirring |
-
2011
- 2011-11-11 CN CN2011204442417U patent/CN202280426U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105019459A (en) * | 2015-07-27 | 2015-11-04 | 周兆弟 | Drill rod feeding device of cement mixing pile driver |
| CN106703705A (en) * | 2016-12-09 | 2017-05-24 | 山东省建筑科学研究院 | Combined type drill applicable to high-spray stirring cement pile |
| CN109930596A (en) * | 2019-04-09 | 2019-06-25 | 沙焕焕 | A kind of construction method of cement earth pile |
| CN111577144A (en) * | 2020-05-09 | 2020-08-25 | 河海大学 | Bidirectional stirring pile stirring head with mud jacking function |
| WO2022057437A1 (en) * | 2020-09-15 | 2022-03-24 | 上海强劲地基工程股份有限公司 | Stirring pile construction apparatus provided with stirring cage |
| CN115488144A (en) * | 2022-09-23 | 2022-12-20 | 同济大学 | In-situ repair device and equipment for double-pipe double-channel liquid adding, powder spraying and stirring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120620 Termination date: 20161111 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |