CN109372421A - More Power compound drilling tools, preparation method and type stake - Google Patents
More Power compound drilling tools, preparation method and type stake Download PDFInfo
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- CN109372421A CN109372421A CN201811186080.9A CN201811186080A CN109372421A CN 109372421 A CN109372421 A CN 109372421A CN 201811186080 A CN201811186080 A CN 201811186080A CN 109372421 A CN109372421 A CN 109372421A
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- drilling tool
- power
- drilling
- compound
- power head
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Classifications
-
- 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
- E21B3/00—Rotary drilling
- E21B3/02—Surface drives for rotary drilling
-
- 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
-
- 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
Abstract
The present invention relates to technical field of civil engineering, more particularly, to a kind of more Power compound drilling tools, preparation method and type stake.More Power compound drilling tools include the lower power drilling tool, middle power drilling tool and upper power drilling tool being sequentially coaxially nested；The lower power drilling tool, middle power drilling tool and upper power drilling tool are respectively equipped with a power mechanism, and the power mechanism can be operated alone its correspondence drilling tool and be rotated.When more Power compound drilling tools are constructed, each drilling tool is converted into the driving method of active by traditional linked manner, can disposably complete pore-forming and concrete pressure fills pile, high degree of automation realizes the raising of work efficiency；The variable diameter of pile body, reasonable engineering method, so that bearing capacity of single pile is further to be improved, to reduce costs；The above composite factor shortens the duration.
Description
Technical field
The present invention relates to technical field of civil engineering, more particularly, to a kind of more Power compound drilling tools, preparation method and type
Stake.
Background technique
In the tide of reform and opening-up, construction industry has rapid development, and design, the construction of foundation are wanted in architectural engineering
Ask higher and higher, concrete stake and reinforced concrete pile basis and composite foundation are in skyscraper, bridge, harbour, railway, highway, airport, water
It is used widely in the engineerings such as sharp hydroelectric facility, in order to make concrete stake and reinforced concrete pile meet bending resistance, anti-shearing, raising bearing capacity
Constantly the shape of concrete stake and reinforced concrete pile is improved with design requirements, people such as antidetonations, is wanted to further satisfaction design
It asks, save material dosage, improves construction quality and shortens construction speed.With traditional pile-type that existing equipment and technique are built,
Its in length and breadth section be usually it is not long with stake and change cylinder or square column type stake, bearing capacity mainly by stake side frictional resistance and
The end resistance composition at stake end.Existing equipment function is more single, and automation degree of equipment is low, is unable to adaptation to local conditions Ground Treatment
Soil causes certain cost waste, affects bearing capacity of single pile and play effect.
The extruding and removing soil combination drill tool technology reference that this patent is related to: utility model patent: 201820124401.1, invention name
Claim: a kind of extruding and removing soil combination drill tool and CFG extruding and removing soil stake.(patent of invention is in the substantive examination stage)
The information disclosed in the background technology section is intended only to deepen understanding of the general background technology to the present invention, and
It is not construed as recognizing or implying in any form that the information constitutes the prior art known to those skilled in the art.
Summary of the invention
The purpose of the present invention is to provide a kind of more Power compound drilling tools, preparation method and type stakes, to solve the prior art
Present in the automatic degree of equipment it is low, engineering method is single, and pile-type is single, and bad adaptability and the not high technology of bearing capacity of single pile are asked
Topic.
To achieve the goals above, the invention adopts the following technical scheme:
In a first aspect, the present invention provides a kind of more Power compound drilling tools comprising: the lower power drill being sequentially coaxially nested
Tool, middle power drilling tool and upper power drilling tool；It is dynamic that the lower power drilling tool, middle power drilling tool and upper power drilling tool are respectively equipped with one
Force mechanisms, the power mechanism can be operated alone its correspondence drilling tool and be rotated.
As a kind of further technical solution, the lower power drilling tool includes: lower power head and outer sleeve drilling tool；It is described
Lower power head is set to the upper end of the outer sleeve drilling tool, for driving the outer sleeve drilling tool to carry out spinning movement.
As a kind of further technical solution, the lower power drilling tool further include: lower casting slot；The lower casting slot is set
It is placed in the upper end of the lower power head.
As a kind of further technical solution, the middle power drilling tool include: middle power head, intermediate sleeve drilling tool and in
Lifting device；The middle power head is set to the upper end of the intermediate sleeve drilling tool, for drive the intermediate sleeve drilling tool into
Row spinning movement；The middle lifting device is set to the lower end of the middle power head, for driving the lower power drilling tool to carry out
Lifting action.
As a kind of further technical solution, the middle power drilling tool further include: middle casting slot and middle limiting device, institute
State the upper end that middle casting slot is set to the middle power head；The middle limiting device is set to the lower end of the middle power head.
As a kind of further technical solution, the upper power drilling tool includes: upper power head, center drilling tool and upper promotion
Device；The upper power head is set to the upper end of the center drilling tool, for driving the center drilling tool to carry out spinning movement；Institute
The lower end that lifting device is set to the upper power head is stated, for driving the middle power drilling tool to carry out lifting action.
As a kind of further technical solution, the upper power drilling tool further include: position limit device；The upper limit dress
Install the lower end for being placed in the upper power head.
As a kind of further technical solution, further includes: pressurizing device, the pressurizing device are set to the upper power
Any one among drilling tool and the middle power drilling tool.
Second aspect, the present invention also provides a kind of type stakes according to more Power compound drilling tool preparations comprising: main body
Pile body；
At least two back taper stepped ramp type bodies are provided on the main body pile body；
The inverted cone disk inclined-plane extended line of the back taper stepped ramp type body and the included angle of the main body pile body central axis
Range are as follows: 5 °~90 °.
The third aspect, the present invention provide again it is a kind of according to more Power compound drilling tools in the method for preparative stake, packet
Include: the demand according to stratum to engineering method, the upper power drilling tool, middle power drilling tool and lower power drilling tool are successively drilled into respectively successively
Projected depth, so as to form multiple back taper stepped ramp type drillings；Start concrete pump, starts pressure concrete injecting, successively mentioned in pressure concrete injecting
Go up power drilling tool, middle power drilling tool and lower power drilling tool, Synchronous lifting after each power drilling tool bottom end is successively concordant, until mentioning
To aperture absolute altitude, while concrete also presses and fills pile to designed elevation, realizes that disposable completion pore-forming and concrete pressure fill pile.
By adopting the above technical scheme, the invention has the following beneficial effects:
The present invention provides a kind of more Power compound drilling tools, which includes lower power drilling tool, middle power drilling tool and upper dynamic
Power drilling tool, lower power drilling tool, middle power drilling tool and upper power drilling tool are respectively equipped with a power mechanism, more Power compound drilling tools
When being constructed, each drilling tool is converted into the driving method of active by traditional linked manner, can disposably complete pore-forming and concrete
Pressure fills pile, and high degree of automation realizes the raising of work efficiency, and the raising of bearing capacity of single pile is reduced costs simultaneously, shortened
Duration；It is adaptable, it is conducive to promote and applies.
The present invention provides a kind of type stakes prepared according to more Power compound drilling tools, and bearing capacity not only includes traditional pile body
Pile side friction and stake end bottom bearing, and the back taper disk inclined-plane of back taper stepped ramp type body can be vertical vertically downwards part
Power be decomposed into the tangential force and normal force of the conical surface, soil around pile forms passive compression chord state and squeezed state, increases stake
All frictional resistances improve the bearing capacity of single pile, can reduce settling amount.This superficial part inversed taper platform part bearing capacity Ke Yong Tai Shaji
(Terzaghi) shallow water oil field formula calculates.It is superimposed the combination construction that is nested by the combination drill tool, can disposably be completed
Pore-forming and concrete pressure fill pile, realize the raising of work efficiency, and bearing capacity of single pile further improves, and reduces costs simultaneously, contract
The short duration.
The present invention provides a kind of preparation methods according to more Power compound drilling tools, and this method is according to stratum to the need of engineering method
It asks, upper power drilling tool, middle power drilling tool and lower power drilling tool are successively drilled into respective projected depth successively, multiple so as to be formed
The drilling of back taper stepped ramp type；Start concrete pump, start pressure concrete injecting, successively promotes upper power drilling tool, middle power drill successively in pressure concrete injecting
Tool and lower power drilling tool, Synchronous lifting after each power drilling tool bottom end is successively concordant, until mentioning aperture absolute altitude, while concrete also presses filling
Pile realizes that disposable completion pore-forming and concrete pressure fill pile, to form the type with above structure and function to designed elevation
Stake.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of more Power compound drilling tool original states provided in an embodiment of the present invention；
Fig. 2 is the structural schematic diagram that more Power compound drilling tools provided in an embodiment of the present invention creep into state；
Fig. 3 is the structural schematic diagram of upper power drilling tool provided in an embodiment of the present invention；
Fig. 4 is the positive structure schematic of upper power head provided in an embodiment of the present invention；
Fig. 5 is the structural schematic diagram of middle power drilling tool provided in an embodiment of the present invention；
Fig. 6 is the positive structure schematic of middle power head provided in an embodiment of the present invention；
Fig. 7 is the structural schematic diagram of middle casting slot provided in an embodiment of the present invention；
Fig. 8 is the structural schematic diagram of lower power drilling tool provided in an embodiment of the present invention；
Fig. 9 is the positive structure schematic of lower power head provided in an embodiment of the present invention；
Figure 10 to Figure 14 is the construction procedure schematic diagram of drilling tool provided in an embodiment of the present invention；
Figure 15 to Figure 24 is different types of pile-type schematic diagram provided in an embodiment of the present invention.
Icon: the upper power drilling tool of 1-；Power drilling tool in 2-；Power drilling tool under 3-；4- type stake；5- concrete pump；The upper power of 11-
Head；The center 12- drilling tool；The upper lifting device of 13-；14- position limit device；15- pressurizing device；Power head in 21-；22- intermediate sleeve
Cylinder drilling tool；Lifting device in 23-；Limiting device in 24-；Casting slot in 26-；Power head under 31-；32- outer sleeve drilling tool；36-
Lower casting slot；41- main body pile body；42- back taper stepped ramp type body.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood as the case may be
Concrete meaning in the present invention.
Below in conjunction with attached drawing, detailed description of the preferred embodiments.It should be understood that this place is retouched
The specific embodiment stated is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
Embodiment one
Shown in Fig. 1 to Fig. 9, the present embodiment provides a kind of more Power compound drilling tools comprising: what is be sequentially coaxially nested is lower dynamic
Power drilling tool 3, middle power drilling tool 2 and upper power drilling tool 1 (ecto-entad, which is sequentially overlapped, to be nested)；The lower power drilling tool 3, middle power
Drilling tool 2 and upper power drilling tool 1 are respectively equipped with a power mechanism, and the power mechanism can be operated alone it and correspond to drilling tool progress
Rotation.As it can be seen that each drilling tool is converted into the driving method of active by passively linked manner, high degree of automation is adaptable,
Conducive to promoting and apply.
Preferably, the lower power drilling tool 3 includes: lower power head 31 and outer sleeve drilling tool 32；The lower power head 31 is set
It is placed in the upper end of the outer sleeve drilling tool 32, for driving the outer sleeve drilling tool 32 to carry out spinning movement.
Further, the lower power drilling tool 3 further include: lower casting slot 36；The lower casting slot 36 be set to it is described under
The upper end of power head 31.
Preferably, the concrete form of the lower power head 31 is not limited to, can is fluid pressure drive device, it can also be with
For Vidacare corp.For the structure of lower power head 31, the shell of the lower power head 31 can be hollow cylindrical, in
Portion has the casting space communicated with lower casting slot 36.Specifically, the lower casting slot 36 includes a casting case and the row of being set to
Native case side and what is be inclined to set lead soil box.The bottom of casting case can pass through the shell and outer sleeve drilling tool 32 of lower power head 31
It is connected, i.e. the part rotation casting of middle sleeve drilling tool 22 is led through 32 inside of outer sleeve drilling tool, lower power head 31, lower casting slot 36
Out.Outer sleeve drilling tool 32 revolves casting and is immediately discharged to aperture.
For outer sleeve drilling tool 32, third helical blade, the third helical-blade are provided on outer sleeve drilling tool 32
Piece is axially set on the outer wall of the outer sleeve drilling tool 32 along the outer sleeve drilling tool 32.The size of outer sleeve drilling tool 32 and
Concrete shape can flexible setting according to actual needs.
Preferably, the middle power drilling tool 2 includes: middle power head 21, intermediate sleeve drilling tool 22 and middle lifting device 23；Institute
The upper end that middle power head 21 is set to the intermediate sleeve drilling tool 22 is stated, for driving the intermediate sleeve drilling tool 22 to be rotated
Movement；The middle lifting device 23 is set to the lower end of the middle power head 21, for driving the lower power drilling tool 3 to be risen
Drop movement.
For middle power head 21, structure can refer to the description of above-mentioned lower power head 31.
It, can be there are many mode for middle lifting device 23.
Such as: lifting device 23 includes: hoist engine in this, which is set to the lower end of the middle power head 21, should
The traction rope of hoist engine is connected with lower power drilling tool 3 (preferably descending power head 31).
Another example is: lifting device 23 includes: telescoping cylinder (oil cylinder) in this, telescoping cylinder is set under the middle power head 21
End, the telescopic rod of the telescoping cylinder are connected with lower power drilling tool 3 (preferably descending power head 31).
For intermediate sleeve drilling tool 22, which is provided with the second helical blade, second spiral shell
Vane piece is axially set on the outer wall of the first sleeve drilling tool along the first sleeve drilling tool.
Preferably, the middle power drilling tool 2 further include: middle casting slot 26 and middle limiting device 24, the middle casting slot 26
It is set to the upper end of the middle power head 21；The middle limiting device 24 is set to the lower end of the middle power head 21.
For middle casting slot 26, casting slot 26 includes a casting case and is set to casting case side and is in incline in this
What is be tiltedly arranged leads soil box.The bottom of casting case can be connected by the shell of middle power head 21 with intermediate sleeve drilling tool 22, i.e., in
The part rotation casting of heart drilling tool 12 is exported through 22 inside of intermediate sleeve drilling tool, lower power head 21, middle casting slot 26.
It, can be there are many mode for middle limiting device 24.Such as: limiting device 24 can be rigid connection in this
Bar, the length of the rigid connecting rod is according to practical flexible setting.It may be telescopic connection rod, length is any according to requiring
It adjusts.
It is formed it is worth noting that middle power drilling tool 2 can be nested according to design requirement by multiple superpositions.Middle power drilling tool 2
When being nested by multiple superpositions, in addition to sleeve diameter and length are different, structure is all the same.
Preferably, the upper power drilling tool 1 includes: upper power head 11, center drilling tool 12 and upper lifting device 13；On described
Power head 11 is set to the upper end of the center drilling tool 12, for driving the center drilling tool 12 to carry out spinning movement；On described
Lifting device 13 is set to the lower end of the upper power head 11, for driving the middle power drilling tool 2 to carry out lifting action.
For upper power head 11, structure, form and its power head 21,31 are substantially similar outer, in addition add slip casting
(bend pipe one end communicates (concrete) union elbow with center drilling tool core pipe, the other end and concrete conveyance high-pressure hose phase
Connect), power top head is additionally provided with suspension centre, is connect with drilling machine master winch by wirerope, no casting slot setting.
It, can be there are many mode for upper lifting device 13.
Such as: lifting device 13 includes: hoist engine on this, which is set to the lower end of the upper power head 11, should
The traction rope of hoist engine is connected with middle power drilling tool 2 (power head 21 in preferably).
Another example is: lifting device 13 includes: telescoping cylinder (oil cylinder) on this, telescoping cylinder is set under the upper power head 11
End, the telescopic rod of the telescoping cylinder are connected with middle power drilling tool 2 (power head 21 in preferably).
Further, the upper power drilling tool 1 further include: position limit device 14；The position limit device 14 is set to institute
State the lower end of power head 11.
It, can be there are many mode for position limit device 14.Such as: the position limit device 14 can be rigid connection
Bar.The length of the rigid connecting rod is according to practical flexible setting.It may be telescopic connection rod, length is any according to requiring
It adjusts.
In addition, the present embodiment further include: pressurizing device 15, the pressurizing device 15 are set to 1 He of upper power drilling tool
Any one among the middle power drilling tool 2.
Certainly, for pressurizing device 15, can be self-possessed according to power mechanism, geological conditions and design requirement are flexibly set
It sets, it is preferred that the pressurizing device 15 can be hoist engine, and hoist engine is set on drilling machine platform, and the traction rope of hoist engine is logical
Cross times among a directive wheel and the upper power drilling tool 1 (upper power head 11) and the middle power drilling tool 2 (middle power head 21)
One of anticipating connection.Pressurizing device 15 or hydraulic cylinder, cylinder tube are fixedly installed on boring tower suitable position, oil cylinder piston
Bar top with it is any one among the upper power drilling tool 1 (upper power head 11) and the middle power drilling tool 2 (middle power head 21)
Person's connection.
Embodiment two
Shown in Figure 10 to Figure 14, the present embodiment two provides a kind of Power compound drilling tools more according to embodiment one again to make
The method of standby type stake 4 comprising: the demand according to stratum to engineering method, the upper power drilling tool 1, middle power drilling tool 2 and lower power
Drilling tool 3 is successively drilled into respective projected depth successively；Start concrete pump 5, start pressure concrete injecting, upper power drill is successively promoted in pressure concrete injecting
Tool 1, middle power drilling tool 2 and lower power drilling tool 3, until successively concordant rear Synchronous lifting goes out aperture absolute altitude for each power drilling tool bottom end,
Concrete, which is also pressed, simultaneously fills pile to designed elevation.
In the treatments of soft foundation such as building structure or railway, highway, need to carry out the foundation soil of disposal field soil from shallow to deep
According to mean shear wave velocity value changing rule can generally be divided into Soft site soil (soil layer average clearance method≤140m/s), in
Soft Site Soil (140m/s < soil layer average clearance method≤250m/s), native (the 250m/s < soil layer average shear wave of Moderate stiff soil sites
Speed≤500m/s), hard ground it is native (500m/s < soil layer shear wave velocity).
For diameter-variable pile:
Such as: it is Moderate stiff soil sites soil (or the overwhelming majority is Moderate stiff soil sites soil) for stratum in the processing long range of stake, adopts
With casting engineering method, casting pore-forming is successively crept by center drilling tool 12-intermediate sleeve, 22-outer sleeve of drilling tool drilling tool 32 respectively.Into
One step, this kind of 15 pressure point of process flow pressurizing device is set on power head 11 most preferably.
Such as: for stratum in the processing long range of stake be it is weak, in soft Site Soil (or the overwhelming majority it is weak, in soft field
Ground soil), using soil compaction engineering method, soil compaction is successively crept by center drilling tool 12-intermediate sleeve, 22-outer sleeve of drilling tool drilling tool 32 respectively
Pore-forming.Further, this kind of 15 pressure point of process flow pressurizing device is set on power head 11 most preferably.The first variable diameter of stake top
Casting mode (mainly seeing intermediate sleeve drilling tool 22 to the compacted degree of hole wall soil) also can be used in pile body pore-forming engineering method.
Such as: handling stratum top in the long range of stake is soft Site Soil in weakness-, and lower part is Moderate stiff soil sites soil, using crowded
Engineering method is had both in casting, and by intermediate sleeve drilling tool 22, (drilling tool 12 drill bit in center stretches out 22 bottom end of intermediate sleeve drilling tool at this time, when drilling
For reversion, spin-ended casting is prevented, only play as the positioning of intermediate sleeve drilling tool 22, break ground and creep into function)-outer sleeve drilling tool 32 is successively
Soft Site Soil drilling soil compaction pore-forming (or 22 bottom end of intermediate sleeve drilling tool slightly penetrates soil compaction area) in weakness-respectively, stops boring, so
It is rotated forward afterwards by center drilling tool 12, continues drilling rotation casting into stake holes, reach projected depth in Moderate stiff soil sites soil.Further,
Stake top the first variable diameter pile body pore-forming engineering method also can be used casting mode and (mainly see intermediate sleeve drilling tool 22 to the compacted journey of stake holes wall soil
Degree).This kind of 15 pressure point of process flow pressurizing device is set on middle power head 21.
For screw thread diameter-variable pile:
Such as: in the processing long range of stake stratum be it is weak, in soft Site Soil (or the overwhelming majority it is weak, in soft place
Soil), using screw thread soil compaction engineering method, successively it is respectively adopted together by center drilling tool 12-intermediate sleeve, 22-outer sleeve of drilling tool drilling tool 32
Step technology creeps into soil compaction into screw thread stake holes.Further, this kind of 15 pressure point of process flow pressurizing device is set to power head
On 11.Stake top the first variable diameter pile body pore-forming engineering method also can be used casting mode, formed equal diameter stake holes (stake top stress is concentrated,
Increase stake top cross section forced area).
Such as: stratum top is soft Site Soil in weakness-in the processing long range of stake, and lower part is that Moderate stiff soil sites are native, in use
Portion's screw thread soil compaction lower part casting, crowded row have both engineering method, and by intermediate sleeve drilling tool 22, (drilling tool 12 drill bit in center stretches out intermediate sleeve at this time
Cylinder drilling tool 22 bottom end is reversion when drilling, prevents spin-ended casting, only play as the positioning of intermediate sleeve drilling tool 22, break ground and creep into function
Can)-outer sleeve drilling tool 32 be successively respectively adopted simultaneous techniques drilling soil compaction at screw thread stake holes, 22 bottom end of intermediate sleeve drilling tool is not
Stop after soft Site Soil in penetrating or slightly penetrating, main story, drilling rotation casting are continued at stake holes, in firmly by center drilling tool 12 at this time
Reach projected depth in Site Soil.Further, casting mode also can be used in the first variable diameter of stake top pile body pore-forming engineering method, formed etc.
Diameter stake holes (stake top stress is concentrated, and stake top cross section forced area is increased).This kind of 15 pressure point of process flow pressurizing device is set
It is placed on power head 21.
Embodiment three
Shown in Figure 15 to Figure 24, the present embodiment also provides a kind of type stake 4 according to more Power compound drilling tool preparations,
It include: main body pile body 41；At least two back taper stepped ramp type bodies 42 are provided on the main body pile body 41；The back taper stepped ramp type body
The included angle range of place inclined-plane extended line and 41 central axis of main body pile body at 42 variable diameter are as follows: 5 °~90 °.Example
Such as: being located at pile body superficial part at the variable diameter of the back taper stepped ramp type body 42, the place at the variable diameter of the back taper stepped ramp type body 42 is oblique
The included angle value range of face extended line and 41 central axis of main body pile body is preferably 30 °~45 °.Another example is: the back taper
It is located at pile body deep, place inclined-plane extended line and institute at the variable diameter of the back taper stepped ramp type body 42 at the variable diameter of stepped ramp type body 42
The included angle range for stating 41 central axis of main body pile body is 5 °~90 °, (such as: 30 °, 45 °, 60 °, 75 °).
In addition, for main body pile body 41, it can also be there are many form.
For example, non-threaded type diameter-variable pile: there are two back taper stepped ramp type body 42, the back tapers for setting on the main body pile body 41
The angle 5 °~900 of place inclined-plane extended line and 41 central axis of main body pile body at the variable diameter of stepped ramp type body 42.
In another example screw-type diameter-variable pile: there are two back taper stepped ramp type bodies 42 for setting on the main body pile body 41, from top to bottom
It is divided into the first pile body, the second pile body and third pile body, wherein at least one has among the first pile body, the second pile body and third pile body
There is helicitic texture.Place inclined-plane extended line and 41 central axis of main body pile body at the variable diameter of the back taper stepped ramp type body 42
Angle 5 °~900.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of more Power compound drilling tools characterized by comprising lower power drilling tool, the middle power drilling tool being sequentially coaxially nested
With upper power drilling tool；The lower power drilling tool, middle power drilling tool and upper power drilling tool are respectively equipped with a power mechanism, described dynamic
Force mechanisms can be operated alone its correspondence drilling tool and be rotated.
2. more Power compound drilling tools according to claim 1, which is characterized in that the lower power drilling tool includes: lower power
Head and outer sleeve drilling tool；The lower power head is set to the upper end of the outer sleeve drilling tool, for driving the outer sleeve drilling tool
Carry out spinning movement.
3. more Power compound drilling tools according to claim 2, which is characterized in that the lower power drilling tool further include: lower row
Soil box；The lower casting slot is set to the upper end of the lower power head.
4. more Power compound drilling tools according to claim 1, which is characterized in that the middle power drilling tool includes: middle power
Head, intermediate sleeve drilling tool and middle lifting device；The middle power head is set to the upper end of the intermediate sleeve drilling tool, for driving
The intermediate sleeve drilling tool carries out spinning movement；The middle lifting device is set to the lower end of the middle power head, for driving
The lower power drilling tool carries out lifting action.
5. more Power compound drilling tools according to claim 4, which is characterized in that the middle power drilling tool further include: middle row
Soil box and middle limiting device, the middle casting slot are set to the upper end of the middle power head；The middle limiting device is set to institute
State the lower end of middle power head.
6. more Power compound drilling tools according to claim 1, which is characterized in that the upper power drilling tool includes: upper power
Head, center drilling tool and upper lifting device；The upper power head is set to the upper end of the center drilling tool, for driving the center
Drilling tool carries out spinning movement；The upper lifting device is set to the lower end of the upper power head, for driving the middle power drill
Tool carries out lifting action.
7. more Power compound drilling tools according to claim 6, which is characterized in that the upper power drilling tool further include: the upper limit
Position device；The position limit device is set to the lower end of the upper power head.
8. more Power compound drilling tools described in any one of -7 according to claim 1, which is characterized in that further include: pressurizing device,
The pressurizing device is set to any one among the upper power drilling tool and the middle power drilling tool.
9. a kind of type stake of more Power compound drilling tool preparations described in any one of -8 according to claim 1, which is characterized in that packet
It includes: main body pile body；
At least two back taper stepped ramp type bodies are provided on the main body pile body；
The inverted cone disk inclined-plane extended line of the back taper stepped ramp type body and the included angle range of the main body pile body central axis
Are as follows: 5 °~90 °.
10. a kind of more Power compound drilling tools described in any one of -8 according to claim 1 are with the method for preparative stake, feature
It is, comprising:
Demand according to stratum to engineering method, the upper power drilling tool, middle power drilling tool and lower power drilling tool are successively drilled into respectively successively
From projected depth, so as to form multiple back taper stepped ramp type drillings；Start concrete pump, starts pressure concrete injecting, successively in pressure concrete injecting
Power drilling tool, middle power drilling tool and lower power drilling tool in promotion, Synchronous lifting after each power drilling tool bottom end is successively concordant, until
Aperture absolute altitude is mentioned, while concrete also presses and fills pile to designed elevation, realizes that disposable completion pore-forming and concrete pressure fill pile.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811186080.9A CN109372421A (en) | 2018-10-11 | 2018-10-11 | More Power compound drilling tools, preparation method and type stake |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811186080.9A CN109372421A (en) | 2018-10-11 | 2018-10-11 | More Power compound drilling tools, preparation method and type stake |
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| CN109372421A true CN109372421A (en) | 2019-02-22 |
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| CN201811186080.9A Pending CN109372421A (en) | 2018-10-11 | 2018-10-11 | More Power compound drilling tools, preparation method and type stake |
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Application publication date: 20190222 Assignee: Hebei cone base civil engineering Co., Ltd. Assignor: Li Guangxin Contract record no.: 2019990000261 Denomination of invention: Multi-power compound drilling tool, production method thereof and pile License type: Exclusive License Record date: 20190801 |