CN2215589Y - Diameter changeable agitation drill - Google Patents
Diameter changeable agitation drill Download PDFInfo
- Publication number
- CN2215589Y CN2215589Y CN 94213047 CN94213047U CN2215589Y CN 2215589 Y CN2215589 Y CN 2215589Y CN 94213047 CN94213047 CN 94213047 CN 94213047 U CN94213047 U CN 94213047U CN 2215589 Y CN2215589 Y CN 2215589Y
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- CN
- China
- Prior art keywords
- curing compound
- drilling rod
- drill
- spout
- drilling
- 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 drill for diameter changeable agitating piles. A drill rod is provided with a plurality of groups of hardener nozzles along the axial line from top to bottom. Each group of nozzles are correspondingly provided with a group of agitating vanes. The working radii of the vanes descend from top to bottom along the axial line of the drill rod. The drill can make the pile diameters of an agitating pile descend with depth according to the based lower stress distribution rule. Thus, the drill can reduce the dosage of the hardener under the precondition of ensuring the identical quality of the foundation stabilization, or enhance the replacement rate of the foundation stabilization with the hardener in the identical dosage. The utility model can be applied to manufacture of various diameter changeable agitating piles conveying the hardener in the fluid form or the fluidized form.
Description
The utility model relates in the ground processing makes the used equipment of agitation pile with deep mixing method.
Known agitation pile is to utilize the deep mixer tool to drive stirring drill tool, in the ground depths weak soil and curing compound (slurries or powder) are forced to stir, thereby in foundation soil, form the radius revolving body that by curing compound and weak soil mix identical with the drilling rod stirring vane radius of clean-up.Because produce a series of physics-chemical reactions between curing compound and the weak soil, this revolving body is hardened becomes to have globality, the agitation pile of water stability and certain intensity.Because present known agitation pile drilling tool only has one group of stirring vane, therefore, formed agitation pile is an isometrical cylinder.This isometrical stake has identical replacement ratio for the soil layer of different depth under the basis.Owing to successively decrease with the degree of depth according to certain rules in the basis distribution of stress down, therefore, it is irrational adopting identical replacement ratio in whole depth boundses.Reasonable method is according to stress distribution law under the basis, is successively decreased with the degree of depth in the stake footpath of agitation pile.Can under the prerequisite that guarantees identical ground stabilization effect, reduce the consumption of curing compound like this; Perhaps, under identical hardener dose, improve the effect of ground stabilization.
The purpose of this utility model is that a kind of novel agitation pile drilling tool will be provided.This drilling tool combines with existing agitation pile rig, can make the reducing agitation pile that successively decreases in the stake footpath from top to bottom.
The purpose of this utility model is achieved in that at its axis of drilling rod upper edge array curing compound spout is set from top to bottom, every group of spout place relative set stirring vane, and each is organized the radius of clean-up of blade and successively decreases from top to bottom along drill rod axis; Each is organized spout and is connected with the curing compound input unit by the separate pipeline of drilling rod inside respectively.
The transmission device that the utility model adopted is identical with existing agitation pile rig, and the form of structure of the stirring vane that is adopted is identical with existing agitation pile drilling rod.
The course of work of the present utility model is as follows: this drilling tool is installed on the rig, has connected transmission device and curing compound transfer pipeline.Start rig, the drilling rod lower end pierces soil layer.Connect the curing compound transfer pipeline that each group links to each other with spout in turn, curing compound enters drilling rod by input unit, and then enters in the soil layer by pipeline and spout, and under the stirring vane effect with drilling rod weak soil on every side mix mutually.Because the radius of clean-up of the pairing stirring vane of each group spout from bottom to top increases gradually, so the shape of formed stirring pile body is a revolving body that radius successively decreases from top to bottom in the soil layer.As required, can make the variation of respectively organizing the stirring vane radius of clean-up meet the basis rule of stress distribution down, like this, can in soil layer under the basis, form the stake footpath and press the reducing agitation pile that stress distribution law changes.
Curing compound spout quantity of the present utility model reaches the axial spacing of respectively organizing between the stirring vane, can be according to concrete construction requirement and process conditions and appointed condition setting.
The pipeline that the utility model drilling rod inside links to each other with each spout can be a block form, also can be coaxial sleeve.
The radius of clean-up of respectively organizing stirring vane of the present utility model can require to determine according to the ground Treatment Design.
The curing compound of the utility model indication can be the cement class, also can be all kinds of deep layers stirring curing compound that lime class or other available fluid form or fluidization form are carried.
Because the utility model can form the reducing stake in soil layer under the basis, stress distribution law adapts in its footpath and the soil layer.So, to compare with the isometrical stake of satisfying identical ground stabilization requirement, the required curing dose of the utility model is less than isometrical stake, thereby can reduce engineering cost.On the other hand, if adopt the curing compound of equivalent, then the utility model can obtain than the better ground stabilization effect of isometrical stake.
Specific constructive form of the present utility model and working condition are provided by following examples and accompanying drawing.
Fig. 1 is the structural representation according to the variable-diameter cement-soil stirring piles drilling tool that the utility model proposes.
1 is shaft coupling among Fig. 1, is used for connecting transfer torque with the main frame power transmission shaft.The 2nd, connecting flange is used for connecting of drilling rod and mainframe, makes drilling rod do axially-movable with main frame.3 and 7 is sizing devices (curing compound input unit) into, and this device is supported on the drilling rod 11 with bearing 10, and drilling rod can be done relative gyration with it.5 and 9 is the slurry-feeding holes on the drilling rod.6 and 8 is inlet pipes, is used for linking to each other with the slush pump delivery outlet.The 12nd, core pipe, the 13rd, the ring section passage that forms by drilling rod 11 inwalls and core pipe 12 outer walls.14 is stirring vane, and 15 is last mouth spray, and 16 is dividing plate, and 17 are following stirring vane, 18 times mouth sprays.
With the apparatus and process condition, present embodiment adopts two-stage whitewashing structure according to actual needs.First order whitewashing structure is by advancing sizing device 3, inlet pipe 6, slurry-feeding hole 5, mouth spray 18 formations under core pipe 12 and following drilling rod 19 reach.Whitewashing structure in the second level is by advancing sizing device 7, and inlet pipe 8, slurry-feeding hole 9, ring section passage 13, drilling rod 11 reach goes up mouth spray 15 formations.The first order and second level whitewashing structure separate with dividing plate 16.
During the utility model work, earlier connecting flange 2 is connected with main frame, this moment, shaft coupling 1 just linked to each other with host output shaft.With pipeline inlet pipe mouth 6,8 is linked to each other with pump.Start main frame, and make drilling rod, after mouth spray 18 enters soil layer instantly, connect first order whitewashing system to underground feeding.Slurries entered into sizing device 3 by 6 and entered in the drilling rod by the hole on the drilling rod wall 5 this moment, reaching down through core pipe 12 then, drilling rod 19 arrives mouth spray 18 down, and outwards ejection, warp stirring vane effect down mixes with soil, forms the cement-soil revolving body that radius equals blade 17 radius of clean-up.
After drilling tool is fed to mouth spray 15 and enters soil layer, connect second level whitewashing system.Slurries enter into sizing device 7 by 8, enter drilling rod inside by hole 9 again, and mouth spray 15 is gone up in 13 arrival through the circular passage then, and outwards ejection.Because the radius of clean-up of last stirring vane 14 is greater than following stirring vane 17.So,, formed the cement-soil revolving body of an external diameter then on the top of first order agitation pile greater than first order stake external diameter along with the downward feeding of drilling rod.After drilling rod is fed into desired depth, promptly under the basis, form the big reducing cement mixing pile in stake footpath, little top, stake footpath, a bottom in the soil layer.
Because curing compound transfer pipelines at different levels and spout in the utility model are separate, thus jet agitation systems at different levels are not disturbed when work mutually, thus can guarantee the hardener dose and the proportioning of pile bodies at different levels.
Claims (3)
1, reducing agitation pile drilling tool, include drilling rod, the transmission hookup, the curing compound input unit, curing compound spout and stirring vane, it is characterized in that: be provided with array curing compound spout from top to bottom at its axis of drilling rod upper edge, every group of corresponding stirring vane that is provided with in spout place, each is organized the radius of clean-up of blade and successively decreases from top to bottom along drill rod axis; Each is organized spout and is connected with the curing compound input unit by the separate pipeline of drilling rod inside respectively.
2, according to the described reducing agitation pile of claim 1 drilling tool, it is characterized in that: the curing compound conveyance conduit of drilling rod inside can be arranged side by side, also can be coaxial sleeve.
3, according to claim 1 or 2 described reducing agitation pile drilling tools, it is characterized in that: the used curing compound of this drilling tool can be the cement class, also can be all kinds of deep layers stirring curing compound that lime class or other available fluid form or fluidization form are carried.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94213047 CN2215589Y (en) | 1994-05-24 | 1994-05-24 | Diameter changeable agitation drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94213047 CN2215589Y (en) | 1994-05-24 | 1994-05-24 | Diameter changeable agitation drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2215589Y true CN2215589Y (en) | 1995-12-20 |
Family
ID=33829708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94213047 Expired - Fee Related CN2215589Y (en) | 1994-05-24 | 1994-05-24 | Diameter changeable agitation drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2215589Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100336982C (en) * | 2004-12-23 | 2007-09-12 | 东南大学 | Nail type cement soil stirring pile operation method |
| CN100363562C (en) * | 2005-12-22 | 2008-01-23 | 上海交通大学 | Preventing plate with spreading and deep layer rotating spraying mixture head with diffusion preventing plate and guniting mouth |
| CN100385077C (en) * | 2005-11-17 | 2008-04-30 | 上海交通大学 | Deep stirring pile stirring head with fixed blade |
| CN101649612B (en) * | 2008-08-14 | 2011-12-21 | 上海强劲地基工程股份有限公司 | Method for forming variable-diameter cement-soil stirring piles |
| CN104674798A (en) * | 2013-11-27 | 2015-06-03 | 上海城地建设股份有限公司 | Construction method for non-replacement and up-and-down convertible spouting five-shaft cement mixing pile |
-
1994
- 1994-05-24 CN CN 94213047 patent/CN2215589Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100336982C (en) * | 2004-12-23 | 2007-09-12 | 东南大学 | Nail type cement soil stirring pile operation method |
| CN100385077C (en) * | 2005-11-17 | 2008-04-30 | 上海交通大学 | Deep stirring pile stirring head with fixed blade |
| CN100363562C (en) * | 2005-12-22 | 2008-01-23 | 上海交通大学 | Preventing plate with spreading and deep layer rotating spraying mixture head with diffusion preventing plate and guniting mouth |
| CN101649612B (en) * | 2008-08-14 | 2011-12-21 | 上海强劲地基工程股份有限公司 | Method for forming variable-diameter cement-soil stirring piles |
| CN104674798A (en) * | 2013-11-27 | 2015-06-03 | 上海城地建设股份有限公司 | Construction method for non-replacement and up-and-down convertible spouting five-shaft cement mixing pile |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: PATENTEE ADDRESS; FROM: 301, BUILDING 3, KONGPUWENHUI HOUSING ESTATE, JIANG DISTRICT(NORTH), NINGBO CITY, ZHEJIANG PROVINCE TO: 101, BUILDING 8, KONGPUWENHUI HOUSING ESTATE, JIANG DISTRICT(NORTH), NINGBO CITY, ZHEJIANG PROVINCE |
|
| CP03 | Change of name, title or address |
Address after: Zhejiang province Ningbo City, Jiangbei District Pu Wenhui Village 8 101 hole Patentee after: Shen Xuezhi Address before: Zhejiang province Ningbo City, Jiangbei District Pu Wenhui village 3 301 hole Patentee before: Shen Xuezhi |
|
| 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 |