CN107227736A - High-pressure rotary-spray stirs drilling rod, device and the construction method of bearing pile - Google Patents
High-pressure rotary-spray stirs drilling rod, device and the construction method of bearing pile Download PDFInfo
- Publication number
- CN107227736A CN107227736A CN201710624170.0A CN201710624170A CN107227736A CN 107227736 A CN107227736 A CN 107227736A CN 201710624170 A CN201710624170 A CN 201710624170A CN 107227736 A CN107227736 A CN 107227736A
- Authority
- CN
- China
- Prior art keywords
- drilling rod
- pile
- spray
- pressure rotary
- scraping blade
- 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.)
- Pending
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
- E02D5/46—Concrete or concrete-like piles cast in position ; Apparatus for making same making in situ by forcing bonding agents into gravel fillings or the soil
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/60—Drill bits characterised by conduits or nozzles for drilling fluids
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/22—Rods or pipes with helical structure
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/02—Drilling rigs characterized by means for land transport with their own drive, e.g. skid mounting or wheel mounting
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0038—Production methods using an auger, i.e. continuous flight type
Abstract
Present invention is disclosed drilling rod, device and the construction method that a kind of high-pressure rotary-spray stirs bearing pile, two nozzles are configured in the drill bit segment of drilling rod, water under high pressure and water under high pressure mud are sprayed respectively, set helical blade to stir the soil body and cement mortar above nozzle, set scraping blade to strike off Pile side soil body on helical blade top.
Description
Technical field
The invention belongs to piling Technology field, and in particular to a kind of construction equipment of high-pressure rotary-spray stirring bearing pile and
Construction method.
Background technology
For soil thickness larger area, generally use the form of pile foundation reliably to pass the load of upper building
It is delivered in supporting course.Pile foundation mainly has two kinds of forms：Prefabricated pile and bored concrete pile.Prefabricated pile is prefabricated in the factory completion, is transported to
Scene, designed elevation is sunk to by the way of hammering or static pressure；Bored concrete pile first pore-forming in soil layer using bored concrete pile machine, after put
Enter steel reinforcement cage, then penetration concrete.Two kinds of pile-type are compared, prefabricated pile than bored concrete pile low cost, construction speed faster, using wide
It is general, but bearing capacity of single pile is limited, is not suitable for high-rise and high-rise building；Bored concrete pile can make various diameters according to requirement of engineering
With the bored concrete pile of depth, bearing capacity of single pile is larger, but the waste rubbish that construction operation is produced is more, and field operation condition is poor.
Therefore, higher real estates projects are required generally for duration and cost, it is preferential to be used as pile foundation from prefabricated pile.
Prefabricated pile is generally sunk into designed elevation using two methods：Static pressure method and hammering method.
For sandy soils thickness large area, because layer of sand side friction is larger, hammering and Static pressure pile driver pile driving pressure are limited,
It is difficult to prefabricated pile sinking to designed elevation.There is problems with conventional treatment measure：One, for sandy soil, spiral draws hole power traction
Easy collapse hole behind complete hole, needs repeatedly to draw hole in layer of sand thicker region；Two, by concentration of slurry, machine during Construction of High Pressure Jet Grouting Pile
Tool power and soil layer situation etc. are influenceed, and stake footpath is changed greatly, and bearing capacity can not ensure.
The content of the invention
It is an object of the invention to solve the deficiency of existing prefabricated pile piling technique.
For achieving the above object, the present invention provides the drilling rod that a kind of high-pressure rotary-spray stirs bearing pile, including under
Helical blade is set above the drill bit segment at end, drill bit segment configuration first jet and second nozzle, drill bit segment, helical blade top is set
Put scraping blade, at least two and be distributed around the drilling rod longitudinal axis into axial symmetry.
As the further improvement of an embodiment of the present invention, scraping blade is two groups, and in the vertical direction is spaced apart, each
Scraping blade group includes at least two scraping blades.
As the further improvement of an embodiment of the present invention, scraping blade radical length is identical with helical blade.
As the further improvement of an embodiment of the present invention, scraping blade axial length is that the axial direction of two helical blades is long
Degree.
As the further improvement of an embodiment of the present invention, first jet is located at lower section and for spraying high pressure cement
Slurry.
As the further improvement of an embodiment of the present invention, second nozzle is above and for spraying water under high pressure.
To achieve the above object, an embodiment of the present invention provides a kind of high-pressure rotary-spray agitating device, including rig, frame
And above-mentioned drill bit.
As the further improvement of an embodiment of the present invention, rig includes the power set that power is 90kw.
As the further improvement of an embodiment of the present invention, bracket height is 20-30 meters.
To achieve the above object, an embodiment of the present invention provides the construction method that a kind of high-pressure rotary-spray stirs bearing pile,
Including step：Rig is positioned；Rod boring, the drilling rod are as it was previously stated, wherein, first jet and second nozzle spray high pressure cement
Slurry and water, the helical blade stirrer soil body and cement grout, the scraping blade strike off the stake survey soil body, are stirred with forming high-pressure rotary-spray
Mix stake；Rig is shifted；With static pressure or hammering method by prefabricated sunk pile to high pressure rotary-spraying mixing pile.
Compared with prior art, the present invention is provided drilling rod, rig and construction method, it can be ensured that cement fills with soil stirring
Point, soil cement expanded diameter it is reliable, bearing pile bearing power increase.
Brief description of the drawings
Fig. 1 is the sectional view that high-pressure rotary-spray stirs bearing pile；
Fig. 2 is the structural representation of the embodiment of drilling rod one of the present invention；
Fig. 3 is the sectional view of the embodiment of drilling rod one of the present invention；
Fig. 4 is the structural representation of high-pressure rotary-spray agitating device；
Fig. 5 is the flow chart of high-pressure rotary-spray stirring carrying pile construction method of the present invention.
Embodiment
Below with reference to embodiment shown in the drawings, the present invention will be described in detail.But these embodiments are simultaneously
The present invention is not limited, structure that one of ordinary skill in the art is made according to these embodiments, method or functionally
Conversion is all contained in protection scope of the present invention.
With reference to Fig. 1, high-pressure rotary-spray stirring bearing pile includes high-pressure rotary-spray mixing pile 10 and prefabricated pile 20, high-pressure rotary-spray stirring
Stake 10 is located at outside, stake footpath about 20cm of its footpath than prefabricated pile 20.
With reference to Fig. 2 and Fig. 3, the present invention provides the drilling rod 30 that a kind of high-pressure rotary-spray stirs bearing pile, and the diameter of drilling rod 30 is about
20cm。
The lower end 100cm scopes of drilling rod 30 are drill bit segment, and drill bit segment possesses the function of drilling and jet cement slurries and water.Bore
Head section has two nozzles 31,33, is alloy material.Wherein, the nozzle 31 close to chisel edge is used to spray high pressure cement
Slurry, the nozzle 33 above it is used to spray water under high pressure.Drill bit segment is by nozzle 31,33 injection waters, gas and cement slurry, to cut
Cut, cleave the soil body, and form high-pressure rotary-spray mixing pile 10.
3~4m scopes set helical blade 35 above drill bit segment, coil some circles of drilling rod 30.The external diameter of helical blade 35 about 60
~80cm, is used at least big 20cm of the diameter of prefabricated pile 20 of arrying main body.The external diameter determines high-pressure rotary-spray mixing pile 10
Stake footpath.
The winding section of helical blade 35 sets some scraping blades 37.
Preferably, scraping blade 37 is two groups, and in the vertical direction is spaced, and every group includes three scraping blades 37.37 points of scraping blade
Group setting can maintain angle of drill bit, effectively prevent drill bit from creeping into hour offset.With group scraping blade 37 around the longitudinal axis Y-Y axial symmetry point of drilling rod 30
Cloth.Each thickness of scraping blade 37 is 10~20mm, and axial length is the axial length of two helical blades 35.The radial direction of scraping blade 37 is long
Degree is identical with helical blade 35.
Water under high pressure mud is sprayed in drill bit and during water, the stirring soil body of helical blade 35 and cement grout, scraping blade 37 is by stake side
The soil body strikes off.High-pressure rotary-spray, auger and stake side strike off three and are combined, it can be ensured that cement stirs abundant, soil cement with soil
Expanded diameter is reliable.
Prefabricated pile 20 is after the pile of high-pressure rotary-spray mixing pile 10 is finished immediately using hammering or static pressure method construction prefabricated pile.
After treating the curing period of high-pressure rotary-spray mixing pile 10 and soil body stand-down, high-pressure rotary-spray stirring bearing pile reaches force request, and it holds
Power is carried than independent static pressed pile or water under high pressure soil mixing pile high capacity.
With reference to Fig. 4, drilling rod 30 is used for high-pressure rotary-spray agitating device.The device include rig 40, frame 50, hoist engine 60,
High pressure cement stock pump 70, high-pressure hydraulic pump 80 and the drilling rod 30 of cement mortar storage barrel 90. are connected to rig 40.Wherein, hoist engine 60 is used
Lifted in driving rig 40, connected between high pressure cement stock pump 70 and rig 40 by pulp-inlet pipe 71, high pressure is pumped into drilling rod 30
Cement mortar, is connected between high-pressure hydraulic pump 80 and rig 40 by water inlet pipe 81, and water under high pressure is pumped into drilling rod 30.
It is preferred that, frame 50 is 20-30 meters high, and being arranged such can make drilling rod 30 longer than stock size, for high pressure rotation
Without spreading during spray spiral agitator, or at most need an extension bar.
The power of the power set of rig 40 is 90kw, for driving drilling rod.
With reference to Fig. 5, during bore forming, construction site is first flattened, rig is then positioned, rig, which is crept into, to be formed high-pressure rotary-spray and stir
Rig after stake is mixed to shift.
Again by static pressure (or hammering) position of p ile machine, by prefabricated sunk pile, stake machine is shifted after pile, high-pressure rotary-spray stirring carrying
Stake pile is completed.
It should be understood that, although the present specification is described in terms of embodiments, but not each embodiment only includes one
Individual independent technical scheme, this narrating mode of specification is only that for clarity, those skilled in the art will should say
Bright book is as an entirety, and the technical scheme in each embodiment may also be suitably combined to form those skilled in the art can
With the other embodiment of understanding.
Those listed above is a series of to be described in detail only for feasibility embodiment of the invention specifically
Bright, they simultaneously are not used to limit the scope of the invention, all equivalent implementations made without departing from skill spirit of the present invention
Or change should be included in the scope of the protection.
Claims (10)
1. a kind of high-pressure rotary-spray stirs the drilling rod of bearing pile, it is characterised in that including the drill bit segment positioned at lower end, the drill bit segment
Configure winding above first jet and second nozzle, the drill bit segment and helical blade is set, the winding section of the helical blade is set
Scraping blade is put, scraping blade is at least two and is distributed around the drilling rod longitudinal axis into axial symmetry.
2. drilling rod according to claim 1, it is characterised in that the scraping blade is two groups, and in the vertical direction is spaced apart,
Each group of scraping blade includes at least two scraping blades.
3. drilling rod according to claim 1, it is characterised in that the scraping blade radical length is identical with helical blade.
4. drilling rod according to claim 1, it is characterised in that the scraping blade axial length is the axial direction of two helical blades
Length.
5. drilling rod according to claim 1, it is characterised in that the first jet is located at below second nozzle and for spraying
Penetrate water under high pressure mud.
6. drilling rod according to claim 1, it is characterised in that the second nozzle is located above first jet and for spraying
Penetrate water under high pressure.
7. a kind of high-pressure rotary-spray agitating device, including rig and frame, it is characterised in that the rig is appointed with claim 1-6
Drilling rod connection described in one.
8. high-pressure rotary-spray agitating device according to claim 7, it is characterised in that the rig includes being used to drive drilling rod
Power set, the power set power be 90 kilowatts.
9. high-pressure rotary-spray agitating device according to claim 7, it is characterised in that the bracket height is 20-30 meters.
10. a kind of high-pressure rotary-spray stirs the construction method of bearing pile, it is characterised in that comprise the following steps：
Rig is positioned,
Rod boring, the drilling rod includes the drill bit segment positioned at lower end, the drill bit segment configuration first jet and second nozzle, institute
State and helical blade is set above drill bit segment, the helical blade winding section sets scraping blade, scraping blade is at least two and vertical around drilling rod
Axle is distributed into axial symmetry, wherein, first jet injection water under high pressure mud, second nozzle injection water, the helical blade stirrer soil
Body and cement grout, the scraping blade strike off the stake survey soil body, to form high-pressure rotary-spray mixing pile,
Rig is shifted,
With static pressure or hammering method by prefabricated sunk pile to high pressure rotary-spraying mixing pile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710624170.0A CN107227736A (en) | 2017-07-27 | 2017-07-27 | High-pressure rotary-spray stirs drilling rod, device and the construction method of bearing pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710624170.0A CN107227736A (en) | 2017-07-27 | 2017-07-27 | High-pressure rotary-spray stirs drilling rod, device and the construction method of bearing pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107227736A true CN107227736A (en) | 2017-10-03 |
Family
ID=59956620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710624170.0A Pending CN107227736A (en) | 2017-07-27 | 2017-07-27 | High-pressure rotary-spray stirs drilling rod, device and the construction method of bearing pile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107227736A (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201212147Y (en) * | 2008-06-23 | 2009-03-25 | 何世鸣 | Combination drill tool for long screwy jet grouting and stirring pile |
| US20090274522A1 (en) * | 2007-01-08 | 2009-11-05 | Lei Yuhua | Piling machine with high-pressure jet spiral bit and its piling method |
| CN201649093U (en) * | 2009-07-23 | 2010-11-24 | 北京中岩大地工程技术有限公司 | Long spiral dual-pipe high-pressure stirring-spraying pile construction device |
| CN101962949A (en) * | 2009-07-23 | 2011-02-02 | 北京中岩大地工程技术有限公司 | Long spiral double-pipe high-pressure stir-jet grouting pile construction method and device |
| CN201826303U (en) * | 2010-07-06 | 2011-05-11 | 袁小忠 | Long-spiral high/low-pressure multi-pipe self-drilling type mixing jet grouting pile forming device |
| CN202090837U (en) * | 2011-04-13 | 2011-12-28 | 广东省基础工程公司 | Reinforced type stirring pile drill head with function of cutting a geomaterial |
| CN102777135A (en) * | 2012-08-02 | 2012-11-14 | 李英成 | Expanding drill and pile forming method |
| CN203160230U (en) * | 2013-01-04 | 2013-08-28 | 杭州南联土木工程科技有限公司 | Pile planting machine capable of strongly drilling and stirring rigid bodies in soil |
| CN204311440U (en) * | 2014-11-21 | 2015-05-06 | 苏州建鑫建设集团有限公司 | Two high pressure multipurpose rotary churning pile device |
| CN204780921U (en) * | 2015-07-16 | 2015-11-18 | 中天建设集团有限公司 | Long -pending clear hole of soil device of tubular pile |
| CN205955651U (en) * | 2016-08-30 | 2017-02-15 | 山西八建集团有限公司 | Long spiral pile driver mud scrapping device of CFG stake |
| CN207260138U (en) * | 2017-07-27 | 2018-04-20 | 江苏建院营造股份有限公司 | High-pressure rotary-spray stirs the drilling rod of bearing pile and has its device |
-
2017
- 2017-07-27 CN CN201710624170.0A patent/CN107227736A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090274522A1 (en) * | 2007-01-08 | 2009-11-05 | Lei Yuhua | Piling machine with high-pressure jet spiral bit and its piling method |
| CN201212147Y (en) * | 2008-06-23 | 2009-03-25 | 何世鸣 | Combination drill tool for long screwy jet grouting and stirring pile |
| CN201649093U (en) * | 2009-07-23 | 2010-11-24 | 北京中岩大地工程技术有限公司 | Long spiral dual-pipe high-pressure stirring-spraying pile construction device |
| CN101962949A (en) * | 2009-07-23 | 2011-02-02 | 北京中岩大地工程技术有限公司 | Long spiral double-pipe high-pressure stir-jet grouting pile construction method and device |
| CN201826303U (en) * | 2010-07-06 | 2011-05-11 | 袁小忠 | Long-spiral high/low-pressure multi-pipe self-drilling type mixing jet grouting pile forming device |
| CN202090837U (en) * | 2011-04-13 | 2011-12-28 | 广东省基础工程公司 | Reinforced type stirring pile drill head with function of cutting a geomaterial |
| CN102777135A (en) * | 2012-08-02 | 2012-11-14 | 李英成 | Expanding drill and pile forming method |
| CN203160230U (en) * | 2013-01-04 | 2013-08-28 | 杭州南联土木工程科技有限公司 | Pile planting machine capable of strongly drilling and stirring rigid bodies in soil |
| CN204311440U (en) * | 2014-11-21 | 2015-05-06 | 苏州建鑫建设集团有限公司 | Two high pressure multipurpose rotary churning pile device |
| CN204780921U (en) * | 2015-07-16 | 2015-11-18 | 中天建设集团有限公司 | Long -pending clear hole of soil device of tubular pile |
| CN205955651U (en) * | 2016-08-30 | 2017-02-15 | 山西八建集团有限公司 | Long spiral pile driver mud scrapping device of CFG stake |
| CN207260138U (en) * | 2017-07-27 | 2018-04-20 | 江苏建院营造股份有限公司 | High-pressure rotary-spray stirs the drilling rod of bearing pile and has its device |
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