CN106192996A - The construction method of a kind of T-shaped stake and the T-shaped drilling tool of T-shaped cast pile driving construction - Google Patents
The construction method of a kind of T-shaped stake and the T-shaped drilling tool of T-shaped cast pile driving construction Download PDFInfo
- Publication number
- CN106192996A CN106192996A CN201610736147.6A CN201610736147A CN106192996A CN 106192996 A CN106192996 A CN 106192996A CN 201610736147 A CN201610736147 A CN 201610736147A CN 106192996 A CN106192996 A CN 106192996A
- Authority
- CN
- China
- Prior art keywords
- shaped
- drilling tool
- extruding
- augers
- stake
- 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.)
- Granted
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 157
- 238000010276 construction Methods 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 claims abstract description 33
- 239000004567 concrete Substances 0.000 claims description 19
- 238000009413 insulation Methods 0.000 claims description 8
- 230000010412 perfusion Effects 0.000 claims description 8
- 239000011148 porous material Substances 0.000 claims description 3
- 239000002689 soil Substances 0.000 abstract description 20
- 230000008901 benefit Effects 0.000 abstract description 6
- 238000011065 in-situ storage Methods 0.000 abstract description 3
- 230000000284 resting effect Effects 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 description 10
- 238000005266 casting Methods 0.000 description 10
- 239000010959 steel Substances 0.000 description 10
- 239000000463 material Substances 0.000 description 8
- 230000015572 biosynthetic process Effects 0.000 description 5
- 230000001143 conditioned effect Effects 0.000 description 5
- 241001074085 Scophthalmus aquosus Species 0.000 description 4
- 208000031481 Pathologic Constriction Diseases 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 3
- 239000004568 cement Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 230000008602 contraction Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000012407 engineering method Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 238000009415 formwork Methods 0.000 description 3
- 210000001215 vagina Anatomy 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 239000011150 reinforced concrete Substances 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000003643 water by type Substances 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 238000009439 industrial construction Methods 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000009436 residential construction Methods 0.000 description 1
- -1 rubble Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000007569 slipcasting Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
The present invention relates to building foundation process field, spy relates to construction method and the T-shaped drilling tool of T-shaped cast pile driving construction of a kind of T-shaped stake.The present invention uses the slewing drilling machine of high pulling torque, installs construction machinery through in place, centering, leveling common process；Augers is used to form heavy in section pile cover hole；After forming heavy in section pile cover hole, augers is in situ and resting state, and drilling rod continues to rotate, and advances downwardly extruding and expanding drilling tool and forms the drilling rod hole of small bore pile body；Rotary drilling operation, makes screw thread cutter head protruding outside to drill bit, and screwer capitiform becomes with direction, negative angle point of contact, rolls out a side screw thread in the stake rod aperture of small bore pile body；The remaining soil of compacted screw thread T-shaped drilling tool and pile cover is rotated and upgraded to steps such as ground.Methods and apparatus of the present invention can improve the bearing capacity of pile foundation, and has laborsaving, and the used time is few, the advantage that efficiency is high.
Description
Technical field
The present invention relates to building foundation process field, spy relates to the construction method of a kind of T-shaped stake and T-shaped cast stake is executed
The T-shaped drilling tool of work.
Background technology
The development maked rapid progress along with National Industrial and residential construction area, for building basis requirement the most increasingly
Height, the most wide variety of all kinds of pile foundations.Typically all adopt on the basis of the buildings such as skyscraper, bridge and industrial premises
With conventional boring cast-in-place concrete pile.
In the engineerings such as foundation stabilization, foundation ditch retaining wall, reservoir leakage stoppage, usually use the CIP engineering method of casting reinforced concrete stake
With PIP engineering method.But it is the most defective.Chinese invention patent " bore slurry pressuring pile-forming application number 86100705 applying date:
1986.01.25 " (at the expiration) disclose a kind of new method irrigating reinforced concrete pile, overcome between PIP engineering method pile body and the soil body
The shortcoming in gap: " be bored into desired depth.By being located at the nozzle of drill bit to the whitewashing of hole inner high voltage, extremely slurry while carrying brill
Till liquid reaches the position not having collapse hole dangerous；In hole, place steel reinforcement cage after trip-out, throw full pellet, and put at least one directly
High-pressure slip-casting sebific duct at the bottom of through hole, with high pressure from making second pulp feeding at the bottom of hole, until serosity reaches aperture ".
Chinese invention patent " construction method of a kind of bored concrete pile, application number: 96119602.5 applyings date: 1996-09-
01, " disclose a kind of Screw Pile technical scheme improving bearing capacity: " 1. make preexisting hole with boring machine, 2. use and carry full spiral shell
The long screw auger drilling to completion of stricture of vagina, pumps out concrete or mortar by bottom drilling rod, Ti Zuan limit, rotation limit, limit perfusion coagulation
Soil or mortar filling stake holes, until ground, form pile body, 3. by the vibrator vibration being placed in its top, steel reinforcement cage are sunk to element mixed
Solidifying soil pile body makes Screw Pile, going down process controls decrease speed and the rotary speed of screw thread, reversely rotates and promote spiral shell
Stricture of vagina bore, the lifting speed of its rotary speed should as lower brill, keep synchronize and coupling, its advantage is: the bored concrete pile of making by
It is threaded in pile body, makes the bearing capacity ratio common filling pile of stake significantly improve.”
The such as CFG stake additionally having been widely used (refers to the compound institute of the compositions such as sand, rubble, cement, flyash or slag
The pile body formed)) in the application process processing composite foundation, often completing and after arriving the age of concrete, need to enter
Row excavation pile crown, section cumbersome process such as stake, formwork supporting plate, install additional " pile cover " in position, stake top, and master operation can not use again machinery
Equalization, cause engineering long in time limit, efficiency is low, cost is high, weak effect.
Chinese invention patent " the process application number of nail-shaped pile pile: 200310106224.2 applyings date: 2003-11-
07, Southeast China University " disclose the process of a kind of nail-shaped pile pile, it is that one is applicable to deep soft soil foundation and processes technique side
Method, its operating procedure is as follows: arranges the steel pile casting (2) that upper shed is big, under shed is little, is positioned at by the little opening of steel pile casting (2)
Ground；Immersed tube (1) is inserted steel pile casting, at the upper shed of steel pile casting, with latch (3) laterally inserted immersed tube, makes the two of latch
End is stuck at the upper shed of steel pile casting, presses under immersed tube with immersed tube machinery, steel pile casting is first pressed onto the predetermined degree of depth；Extract slotting
Pin, then proceedes to down press immersed tube, makes immersed tube be pressed onto the design stake degree of depth；Upwards extract immersed tube, in pipe, backfill plain concrete simultaneously
Or the material such as CFG, then by companding footpath under immersed tube；Immersed tube is lifted up, at steel pile casting, extracting together with steel pile casting, and irrigates mixed
The materials such as solidifying soil or CFG, material is thus formed plain concrete pile or the CFG stake of band cap.
But this method construction equipment requires that horsepower is too big, and energy consumption is too high, is unfavorable for using.
Summary of the invention
For the deficiencies in the prior art, the invention provides construction method and the T-shaped cast pile driving construction of a kind of T-shaped cast stake
T-shaped drilling tool, in formation of pile, make the soil body of a side periphery be extruded and fill close, the disposable one-tenth of T-shaped pile body can be formed
Stake, can improve the bearing capacity of pile foundation, and have laborsaving, and the used time is few, the advantage that efficiency is high.
The technical scheme is that the construction method of a kind of T-shaped cast stake, first get out T-shaped stake holes, then to T-shaped
Concrete perfusion in stake holes, forms the T-shaped stake of band cap, it is characterised in that: the slewing drilling machine of boring is with augers and squeezed
Drilling tool, during drilling rod is descending, augers is the most descending after getting out pile cover hole, and extruding and expanding drilling tool continues to get out downwards a bar, bores
Carrying to returning after at the bottom of stake, augers and extruding and expanding drilling tool return the hollow conveying pipeline perfusion cast in stake holes continuously carrying drilling rod in whole process
Material, until to the T-shaped cast stake of the stake holes degree of lip-rounding, augers is stepped down before the cast mouth of pipe arrives.
The construction method of T-shaped cast stake as above, it is characterised in that: during drilling rod returns and carries, in extruding and expanding drilling tool
Screw thread cutter head stretch out, extruding and expanding drilling tool rotate go up during the bar portion of T-shaped stake formed thread groove, irrigate subsequently waters
Material feeding forms the screw thread of T-shaped cast stake.
The work progress of the present invention, including the slewing drilling machine of employing high pulling torque, through in place, centering, leveling common process pair
Construction machinery is installed；Augers is used to form heavy in section pile cover hole；After forming heavy in section pile cover hole, augers
Being in original position and resting state, drilling rod continues to rotate, and advances downwardly extruding and expanding drilling tool and forms the drilling rod hole of small bore pile body；Abrasion drill
Entering operation, make screw thread cutter head protruding outside to drill bit, screwer capitiform becomes with direction, negative angle point of contact, at the stake bar of small bore pile body
A side screw thread is rolled out on hole；By compacted screw thread T-shaped drilling tool (being made up of augers and extruding and expanding drilling tool) and the remaining soil of pile cover
Rotate and upgrade to steps such as ground.Use the auger boring method of the present invention, than the pressure side down of the process of nail-shaped pile pile
Method is laborsaving, and the used time is few, and efficiency is high.In formation of pile, the soil body of a side periphery is made to obtain filling close, and the spiral shell outside pile body
Stricture of vagina can be greatly improved foundation bearing capacity, it is also possible to forms the disposable pile of T-shaped pile body, can effectively solve a top to mattress layer
The puncture problem formed, can improve the bearing capacity of pile foundation.
T-shaped stake prepared by the inventive method, described stake shank diameter scope is 200～800mm, a diameter of bar of pile cover
1.5～2.5 times of diameter；The height of pile cover is 1.2～2.5 times of a shank diameter.
According to compacted screw thread T-shaped stake as above, it is characterised in that: described pile cover, the material of stake bar be concrete,
Conditioned soil or containing the one in the low-intensity compound of firming agent, or its several combination.
A kind of T-shaped drilling tool of T-shaped cast pile driving construction, including drilling rod and drill bit, perfusion pore logical in having in the middle of drilling rod,
It is characterized in that: drill bit includes augers mechanism and extruding and expanding drilling tool mechanism, augers mechanism is enclosed within drilling rod, drilling rod termination
Connect extruding and expanding drilling tool mechanism；
Wherein augers mechanism includes the first augers, internal key, helical blade, positioning joint and limit switch；
Extruding and expanding drilling tool mechanism include extruding and expanding drilling tool body, lifting telescopic, expansion joint, Ji Luo mechanism, torsion pass win in succession, the
Two augers, squeezed gauge paste block and the end, spudded in head；
The pipe that the first described augers is logical in being, central hollow section arranges drilling rod, outside the first augers
Arranging helical blade, helical blade is welded on the first augers；First augers interior welds is provided with internal key, top
It is provided with the limit switch no less than 2, positioning joint is set at bar first half；Described extruding and expanding drilling tool body is arranged on spacing
Below joint, extruding and expanding drilling tool body is logical in being, extruding and expanding drilling tool body upper part and drilling rod are by lifting telescopic, expansion joint axle
Being socketed to flexible keyed, extruding and expanding drilling tool body lower part is won in succession with torsion pass and is bolted to connection；Described extruding and expanding drilling tool mechanism
At least including a Chu Ji spiral shell mechanism, Ji Luo mechanism is arranged on extruding and expanding drilling tool body, and Ji Luo mechanism includes that screw thread cutter head, wedge shape are led
Plate, bearing pin, screw thread cutter head is fixed on extruding and expanding drilling tool body by bearing pin, and wedge slide is arranged on inside screw thread cutter head, squeezed
Gauge paste block is arranged on the extexine of extruding and expanding drilling tool body；Wedge slide is arranged on lifting telescopic.
T-shaped drilling tool according to T-shaped as above cast pile driving construction, it is characterised in that: described extruding and expanding drilling tool body
Also including external key, when boring under drilling rod, internal key and external key are in bond styles.
According to T-shaped as above cast pile driving construction T-shaped drilling tool, it is characterised in that: described lifting telescopic and
Expansion joint uses polygon key or spline mode to be axially movable connection, and lifting telescopic is fixing with drilling rod to be connected, and stretches
Win in succession with torsion pass fixing connection in the lower end of reducer coupling head.
T-shaped drilling tool according to T-shaped as above cast pile driving construction, it is characterised in that: described expansion joint afterbody
Win in succession be connected with extruding and expanding drilling tool body by wedge slide, bearing pin, torsion pass.
T-shaped drilling tool according to T-shaped as above cast pile driving construction, it is characterised in that: described extruding and expanding drilling tool mechanism
Including heat insulation short tube, between heat insulation short tube is arranged on the second augers and torsion pass is won in succession.
Advantages of the present invention and good effect:
1, reduce cost: due to the T-shaped structure of the pile body of disposable pile, decrease pile crown excavation, cut stake, formwork supporting plate etc.
Cumbersome process, improves the work efficiency of engineering, reduces construction cost.
2, more laborsaving than the pressure method down of the process of nail-shaped pile pile, and the used time is few, and efficiency is high.
3, in formation of pile, make the soil body of a side periphery obtain filling close, and the screw thread outside pile body can be greatly improved ground
Base bearing capacity, it is also possible to form the disposable pile of T-shaped pile body, can effectively solve the puncture that mattress layer forms by a top and ask
Topic, can improve the bearing capacity of pile foundation.
4, form gas-permeable channels, release steam and aqueous vapor between adjacent gauge paster, slow down into brill resistance.
Accompanying drawing explanation
Fig. 1 is: compacted screw thread T-shaped stake threaded pile body structure schematic diagram；
Fig. 2 is: compacted screw thread T-shaped stake threadless pile body structure schematic diagram；
Fig. 3 is: the structure chart of extruding and expanding drilling tool when being drilled down into；
Fig. 4 is: promote the structure chart of extruding and expanding drilling tool when creeping into；
Fig. 5 is: for drilling tool structure top view；
Fig. 6 is: the screw thread cutter head profile (Fig. 3 A-A is to structural representation) when contraction state；
Fig. 7 is: the screw thread cutter head profile (Fig. 4 B-B is to structural representation) when stretching out state；
Fig. 8 is: screwer header structure axonometric chart；
Fig. 9 is: the rig in pile-formation process flow process is in place, centering, leveling；
Figure 10 is: creep into clockwise downwards, and augers separates；
Figure 11 is: continue the most squeezed creeping into whole hole；
Figure 12 is: slightly stop, and promotes, and screwer head process goes out, and creeps into clockwise while squeezed, rolled thread；Synchronization is watered
Build concrete；
Figure 13 is: continues to lift up and creeps into until entering in augers, common rotation and lifting, uninterruptedly waters continuously simultaneously
Build concrete；
Figure 14 is: pile, telephone-moving.
Description of reference numerals: T-shaped stake 1A, pile cover 2A, stake bar 3A, pile body screw thread 4A, drilling rod the 1, first augers 2, interior
Key 3, helical blade 4, limit switch 5, positioning joint 6, external key 7, extruding and expanding drilling tool body 8, lifting telescopic 9, expansion joint 10,
Screw thread cutter head 11, wedge slide 12, bearing pin 13, torsion pass win in succession the 14, second augers 15, the end spud in 16, bearing pin 17, heat insulation
Short tube 18, squeezed gauge paste block 19.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
As it is shown in figure 1, the compacted screw thread T-shaped stake of the one of the present invention includes T-shaped stake 1A, pile cover 2A, stake bar 3A, pile body screw thread
4A, T-shaped stake 1A include pile cover 2A and stake bar 3A.Wherein pile cover 2A is arranged on above a bar 3A, and pile cover 2A diameter is big, stake bar 3A
Diameter is little, make T-shaped stake 1A be the big lower diameter of a kind of upper diameter little cylindrical masses stake, in the symmetry of its pile body structure
Heart section shape is "T"-shaped.As it is shown in figure 1, the outside non-threaded of the pile cover 2A of the present invention, the outside of its bar 3A arranges pile body
Screw thread 4A.The pile cover 2A of the present invention, stake bar 3A all can complete disposable pile.
As the another kind of embodiment of the present invention, the outside of its bar 3A also can be without non-threaded, as shown in Figure 2.
In the present invention, stake bar 3A diameter range is generally 200～800mm, the 1.5 of a diameter of the bar 3A diameter of pile cover 2A
～2.5 times；The height of pile cover 2A is 1.2～2.5 times of a bar 3A diameter.
In the present invention, pile cover 2A, the material of stake bar 3A are concrete, conditioned soil or the low-intensity compound containing firming agent
In one, or its several combination.Concrete can use the concrete of different brackets label；Conditioned soil is different firming agent
The conditioned soil of volume, as used cement or the conditioned soil of lime intermingled quantity.
As shown in Figure 3 and Figure 4, the compacted screw thread T-shaped drilling tool that the present invention uses, in the middle of drilling rod 1 and drill bit, drilling rod 1
Perfusion pore logical in having, drill bit includes augers mechanism and extruding and expanding drilling tool mechanism, and augers mechanism is enclosed within drilling rod 1,
Drilling rod 1 termination connects extruding and expanding drilling tool mechanism.
As shown in Figure 3 and Figure 4, the augers mechanism of the present invention include the first augers 2, internal key 3, helical blade 4,
Positioning joint 6, limit switch 5；Extruding and expanding drilling tool mechanism includes that lifting telescopic 9, expansion joint 10, screw thread cutter head 11, wedge shape are led
Spud in 16 composition in win in succession the 14, second augers 15, the end of plate 12, bearing pin 13, torsion pass.
As shown in Figure 3 and Figure 4, the augers mechanism concrete structure of the present invention is: the pipe that the first augers 2 is logical in being
Son, central hollow section arranges drilling rod 1, and the first augers 2 is outside arranges helical blade 4, and helical blade 4 is welded on the first spiral shell
On rotary drill head 2.First augers 2 interior welds is provided with internal key 3, and top is provided with the limit switch 5 no less than 2,
Drilling rod 1 first half arranges positioning joint 6.It is that the first augers 2 that drilling rod 1 is logical in passing through, at positioning joint at drilling process
Under the effect of the spacing and limit switch 5 of 6, axial limiting is also fixed, as shown in Figure 3.On internal key 3 and extruding and expanding drilling tool body 8
External key 7, is in bond styles, and drilling rod 1 drives the first augers 2 to be rotated clockwise, and to the projected depth of pile cover, is formed
After the pile cover 2A of compacted screw thread T-shaped stake, temporarily cease revolution, operate limit switch 5, make the first augers 2 and extruding and expanding drilling tool
Body 8 axial separation.
As shown in Figure 3 and Figure 4, the extruding and expanding drilling tool mechanism concrete structure of the present invention is: extruding and expanding drilling tool mechanism forefront is crowded
Expanding drilling tool body 8, extruding and expanding drilling tool body 8 is arranged on below positioning joint 6.Extruding and expanding drilling tool body 8 is logical in being, extruding and expanding drilling tool is originally
Body 8 top and drilling rod 1 are socketed by lifting telescopic 9, expansion joint 10 axial stretching keyed, extruding and expanding drilling tool body 8 bottom with
Torsion pass is won in succession and 14 is bolted to connection.Torsion pass win in succession 14 lower end be fixedly welded with the second augers 15 and heat insulation short tube
18, the second augers 15 and torsion pass are won in succession and are provided with cone between 14 excessively, are provided with outside the cylinder of the second augers 15
With the helical blade of the circle such as extruding and expanding drilling tool body 8 external diameter, the bottom of the second augers 15 is provided with the end and spuds in 16, passes through bearing pin
17 hingedly connected.
As shown in Figure 4, in the extruding and expanding drilling tool body 8 of the present invention, it is provided with lifting telescopic 9, expansion joint 10, its lifting
Telescopic 9 and expansion joint 10 use polygon key or spline mode to be axially movable connection, and lifting telescopic 9 is provided with
Wedge slide 12.Lifting telescopic 9 and drilling rod 1 is fixing to be connected, and wins in succession with torsion pass and 14 fix and be connected in the lower end of expansion joint 10.Squeeze
Expanding gauge paste block 19 and be arranged on the extexine of extruding and expanding drilling tool body 8, the squeezed gauge paste block 19 of axial strip is to the second spiral
The soil that drill bit 15 has bored is pushed hole wall to and is compacted, and forms gas-permeable channels, release steam and water between adjacent squeezed gauge paste block 19
Gas, slows down into brill resistance, as shown in Figure 6.
As shown in Figure 4, Figure 5, Figure 6 and Figure 7, the expansion joint 10 of the present invention is arranged on outside lifting telescopic 9, and torsion pass is even
Pulling 14 fixing with lifting telescopic 9 to be connected, torsion pass is won in succession and is connected lifting telescopic 9 on rear side of 14, is threaded in lifting telescopic 9
Cutter head 11, expansion joint 10 afterbody is won in succession by wedge slide 12, bearing pin 13, torsion pass and 14 is connected with extruding and expanding drilling tool body 8, described
Extruding and expanding drilling tool mechanism at least include a Chu Ji spiral shell mechanism, Ji Luo mechanism is arranged on extruding and expanding drilling tool body 8, and Ji Luo mechanism includes
Screw thread cutter head 11, wedge slide 12, bearing pin 13, screw thread cutter head 11 is fixed on extruding and expanding drilling tool body 8 by bearing pin 13, and wedge shape is led
Plate 12 is arranged on inside screw thread cutter head 11.When being drilled down into, lifting telescopic 9 and the expansion joint 10 of drilling tool are in contraction-like
State, is displaced downwardly to wedge shape extreme lower position radially with the wedge slide 12 of lifting telescopic 9 linkage, and now screw thread cutter head 11 is in
Contraction state (see Fig. 6).
Promoting and rotary drilling operation clockwise when entering, now the segment of drillpipe at extruding and expanding drilling tool center is in expansion joint 10
Position produces axial displacement because having bigger frictional resistance outside extruding and expanding drilling tool body 8 external diameter and the stake holes after compacted, band
Wedge slide 12 on dynamic lifting telescopic 9, and under wedge slide 12 acts on, promote screw thread cutter head 11 to rotate around bearing pin 13,
Make protruding outside to drilling tool of screw thread cutter head 11, the swing bar cam structure on approximate engineering mechanics, prominent screw thread cutter head
Formed with direction, negative angle point of contact, a side screw thread can be rolled out well.
As shown in Figure 4, the extruding and expanding drilling tool mechanism of the present invention includes that heat insulation short tube 18, heat insulation short tube 18 are arranged on the second spiral
Drill bit 15 and torsion pass are won in succession between 14.
As shown in Figure 4, the extruding and expanding drilling tool mechanism of the present invention also includes that the end spuds in 16, the end spud in 16 by bearing pin 17 with
Second augers 15.
The all right handed methods of drill bit in the compacted screw thread T-shaped stake formation of pile of the present invention, also fit
The counter clockwise direction all for drill bit rotates.
The construction method of the compacted screw thread T-shaped stake of the present invention is:
1) use the slewing drilling machine of high pulling torque, through the common process such as in place, centering, leveling, construction machinery is installed
(Fig. 9)；
2) stop collar 3 in compacted screw thread T-shaped drilling tool is by the most stuck to drilling rod 1 and the first augers 2, makes drilling rod 1 revolve
Turning to drive the first augers 2 to rotate, and rotates in the direction of the clock and is drilled down into, and when creeping into, dregs is along the first augers 2
Helical blade get rid of aperture, to the heavy in section projected depth of pile body, form the pile cover 2A of compacted screw thread T-shaped stake (such as Figure 10 institute
Show), now bearing torque extensible member and the screw thread cutter head of extruding and expanding drilling tool is in contraction state.
3), after releasing stop collar 3, drilling rod 1 continues to turn clockwise, then the first augers 2 is because of departing from axially and radially
Constraint and restriction, be in situ and resting state, the extruding and expanding drilling tool mechanism of compacted screw thread T-shaped drilling tool continue clockwise to
Under creep into, during pore-forming by compacted screw thread T-shaped drilling tool constantly drilling and extruding and expanding drilling tool mechanism pressing body make
Under with, make the soil body of a side periphery obtain filling close, until stake projected depth, form the open-hole (Figure 11) of stake bar 3A；
4) slightly stop to immediately enter lifting and rotary drilling operation clockwise, the now telescoping connection of extruding and expanding drilling tool mechanism in a moment
6 produce axial displacement, by lifting because having bigger frictional resistance outside extruding and expanding drilling tool external diameter and the stake holes after compacted
Move on wedge slide 10 on set 5 drive telescopic 8, and under wedge slide 10 acts on, promote screw thread cutter head 9 to revolve around bearing pin 11
Turn, make screw thread cutter head 9 and screw thread cutter head 20 protruding outside to drill bit, the swing bar cam structure on approximate engineering mechanics,
Prominent screw thread cutter head 20 is formed with direction, negative angle point of contact, can roll out a side screw thread well, as shown in Figure 12 and Figure 13.
Promote and while rotary drilling clockwise entering, casting concrete or cementing material in time, be allowed to fast
Speed fills compacted open-hole and thread-rolling screw space and pile.
5), time at entrance lifting with rotary drilling clockwise to pile cover 2A, make stop collar 3 by drilling rod 1 and the first auger
2 the most stuck, and then dextrorotation rotatory force is gone to augers and rotates and Synchronous lifting (Figure 14) by extruding and expanding drilling tool again,
The remaining soil of pile cover is rotated and upgraded discharge ground.
6) space that the concrete of continuous placing filling heavy in section row of piles in time is empty forms pile cover 2A, stake bar to ground
3A and pile body screw thread 4A.Can be auxiliary in vibrating head vibration compacting, pile, mobile drill enters next pile driving construction.
The pile body screw thread 4A of compacted screw thread T-shaped stake only utilizes rolling to realize in promoting drilling process, the screw thread of pile body
And pitch all can be ensured fully.But screw thread lead is because being affected by formation factor, should not deliberately pursue the equal of pitch
Even and concordance, only need to be maintained in certain scope (diameter of 0.8～1.5 times of minor diameter pile body).
The technique of the compacted screw thread T-shaped stake of the present invention is usually in starting stage of pore-forming just with creeping into executing of row expanding reach
Work, it is adaptable to can be cast-in-situ bored pile, cement mixing method, compaction thread, long spiral CFG pile etc..
T-shaped pile construction method of the present invention and drilling tool thereof provide the benefit that:
Improve bearing capacity: mainly make by compacted screw thread T-shaped drilling tool constantly drilling with at the pressing body of extruding and expanding drilling tool
Under with, make the soil body of a side periphery obtain filling close, and the screw thread outside pile body can be greatly improved foundation bearing capacity, it is also possible to formed
The disposable pile of T pile body, can effectively solve the puncture problem that mattress layer is formed by a top, can improve the carrying of pile foundation
Power.
Environmental benefit: mainly compacted by stake holes due to compacted screw thread T-shaped stake, the soil body of stake holes by compacted to stake week
(side), green, environmental protection construction, eliminate the mud contamination hang-up in conventional pile foundation construction, meet the environmental conservation political affairs of country
Plan.
Labor-saving high-efficiency, reduce cost: due to the T-shaped structure of the pile body of disposable pile, decrease pile crown excavation, cut stake,
The cumbersome process such as formwork supporting plate, improve the work efficiency of engineering, reduce construction cost.
Have wide range of applications: have for the market demand widely particularly with complex ground treatment field.
Claims (7)
1. a construction method for T-shaped cast stake, first gets out T-shaped stake holes, then at concrete perfusion in T-shaped stake holes, is formed
T-shaped stake with cap, it is characterised in that: the slewing drilling machine of boring is with augers and extruding and expanding drilling tool, during drilling rod is descending, spiral shell
Rotary drill head is the most descending after getting out pile cover hole, and extruding and expanding drilling tool continues to get out downwards a bar, at the bottom of getting into after return and carry, augers and
Extruding and expanding drilling tool returns the hollow conveying pipeline perfusion castable in stake holes continuously carrying drilling rod in whole process, until T-shaped to the stake holes degree of lip-rounding
Cast stake, augers is stepped down before the cast mouth of pipe arrives.
The construction method of T-shaped the most according to claim 1 cast stake, it is characterised in that: during drilling rod returns and carries, squeezed
Screw thread cutter head in drilling tool stretches out, and forms thread groove in the bar portion of T-shaped stake, fill subsequently during extruding and expanding drilling tool rotates
The castable of note forms the screw thread of T-shaped cast stake.
3. a T-shaped drilling tool for T-shaped cast pile driving construction, including perfusion logical in having in the middle of drilling rod (1) and drill bit, drilling rod (1)
Pore, it is characterised in that: drill bit includes augers mechanism and extruding and expanding drilling tool mechanism, and augers mechanism is enclosed within drilling rod (1),
Drilling rod (1) termination connects extruding and expanding drilling tool mechanism；Wherein augers mechanism includes the first augers (2), internal key (3), spiral
Blade (4), positioning joint (6) and limit switch (5)；Extruding-enlarging aiguille mechanism includes extruding and expanding drilling tool body (8), lifting telescopic
(9), expansion joint (10), squeezed cutter head (11), wedge slide (12), bearing pin (13), torsion pass are won in succession (14), the second augers
(15), spud in head (16) squeezed gauge paste block (19) and the end；The pipe that described the first augers (2) is logical in being, middle empty
Heart part arranges drilling rod (1), and the first augers (2) is outside arranges helical blade (4), and helical blade (4) is welded on the first spiral shell
On rotary drill head (2)；First augers (2) interior welds is provided with internal key (3), and what top was provided with no less than 2 spacing opens
Close (5), positioning joint (6) is set at drilling rod (1) first half；Described extruding and expanding drilling tool body (8) is arranged under positioning joint (6)
Side, extruding and expanding drilling tool body (8) is logical in being, extruding and expanding drilling tool body (8) top and drilling rod (1) are by lifting telescopic (9), stretching
Joint (10) axial stretching keyed be socketed, extruding and expanding drilling tool body (8) bottom win in succession with torsion pass (14) be bolted to connection；Institute
The extruding-enlarging aiguille mechanism stated at least includes squeezing at one spiral shell device, squeezes spiral shell device and is arranged on extruding and expanding drilling tool body (8), squeezes spiral shell device
Including squeezed gauge paste block (19), squeezed cutter head (11), wedge slide (12), bearing pin (13), squeezed cutter head (11) passes through bearing pin
(13) being fixed on extruding and expanding drilling tool body (8), wedge slide (12) is arranged on squeezed cutter head (11) inner side, squeezed gauge paste block
(19) be arranged on extruding and expanding drilling tool body extexine；Wedge slide (12) is arranged in lifting telescopic (9).
The T-shaped drilling tool of T-shaped the most according to claim 3 cast pile driving construction, it is characterised in that: described extruding and expanding drilling tool is originally
Body (8) also includes external key (7), and when boring under drilling rod (1), internal key (3) and external key (7) are in bond styles.
The T-shaped drilling tool of T-shaped the most according to claim 3 cast pile driving construction, it is characterised in that: described lifting telescopic
And expansion joint (10) uses polygon key or spline mode to be axially movable connection, lifting telescopic (9) and drilling rod (9)
(1) fixing connection, winning in succession with torsion pass in the lower end of expansion joint (10), (14) are fixing to be connected.
The T-shaped drilling tool of T-shaped the most according to claim 3 cast pile driving construction, it is characterised in that: described expansion joint
(10) afterbody by wedge slide (12), bearing pin (13), torsion pass win in succession (14) be connected with extruding and expanding drilling tool body (8).
The T-shaped drilling tool of T-shaped the most according to claim 3 cast pile driving construction, it is characterised in that: described extruding-enlarging aiguille machine
Structure includes heat insulation short tube (18), and heat insulation short tube (18) is arranged on the second augers (15) and torsion pass is won in succession between (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610736147.6A CN106192996B (en) | 2016-08-26 | 2016-08-26 | A kind of T shape drilling tools of construction method and T shapes the cast pile driving construction of T shapes stake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610736147.6A CN106192996B (en) | 2016-08-26 | 2016-08-26 | A kind of T shape drilling tools of construction method and T shapes the cast pile driving construction of T shapes stake |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106192996A true CN106192996A (en) | 2016-12-07 |
| CN106192996B CN106192996B (en) | 2018-06-26 |
Family
ID=57526854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610736147.6A Active CN106192996B (en) | 2016-08-26 | 2016-08-26 | A kind of T shape drilling tools of construction method and T shapes the cast pile driving construction of T shapes stake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106192996B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106761415A (en) * | 2017-01-23 | 2017-05-31 | 中电建建筑集团有限公司 | The constructing device and its construction method of a kind of profound cast-in-situ bored pile |
| CN108086910A (en) * | 2018-01-18 | 2018-05-29 | 北京地矿工程建设有限责任公司 | Long spire extruded and extended pile drilling machine boring method and long spire extruded and extended pile drilling machine |
| CN108755729A (en) * | 2018-08-20 | 2018-11-06 | 中铁二十局集团第工程有限公司 | A kind of CFG pile foundations pile cover and pile body integrative construction device and method |
| CN108797578A (en) * | 2018-07-12 | 2018-11-13 | 上海市城市建设设计研究总院（集团）有限公司 | Crushed stone grouting pile and its construction method with classification enlarged footing |
| CN115198770A (en) * | 2022-07-25 | 2022-10-18 | 浙江易通特种基础工程股份有限公司 | Positioning pile casing device and static drilling rooted pile construction method using same |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0010037A1 (en) * | 1978-09-27 | 1980-04-16 | Jean-Marie Labrue | Hollow auger for drilling when forming concrete piles |
| CN1542234A (en) * | 2003-11-07 | 2004-11-03 | 东南大学 | Pile forming technology for nail-shaped pile |
| CN102162248A (en) * | 2011-04-26 | 2011-08-24 | 武汉高铁桩工科技有限公司 | Method for forming variable-cross-section compaction thread pile and compaction drilling tool |
| CN104762962A (en) * | 2015-04-08 | 2015-07-08 | 武汉高铁桩工科技有限公司 | Variable cross-section extrusion-expansion screw pile drilling tool |
| CN204571847U (en) * | 2014-12-31 | 2015-08-19 | 武汉高铁桩工科技有限公司 | The squeezed screw thread drilling tool of a kind of reducing |
| CN105888576A (en) * | 2016-06-12 | 2016-08-24 | 江苏昌鑫基础工程有限公司 | Drilling assembly for integrated construction of long spiral bored perfusion pile top and cap |
| CN206015668U (en) * | 2016-08-26 | 2017-03-15 | 武汉谦诚桩工科技股份有限公司 | A kind of T-shaped pours into a mould the T-shaped drilling tool of pile driving construction |
-
2016
- 2016-08-26 CN CN201610736147.6A patent/CN106192996B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0010037A1 (en) * | 1978-09-27 | 1980-04-16 | Jean-Marie Labrue | Hollow auger for drilling when forming concrete piles |
| CN1542234A (en) * | 2003-11-07 | 2004-11-03 | 东南大学 | Pile forming technology for nail-shaped pile |
| CN102162248A (en) * | 2011-04-26 | 2011-08-24 | 武汉高铁桩工科技有限公司 | Method for forming variable-cross-section compaction thread pile and compaction drilling tool |
| CN204571847U (en) * | 2014-12-31 | 2015-08-19 | 武汉高铁桩工科技有限公司 | The squeezed screw thread drilling tool of a kind of reducing |
| CN104762962A (en) * | 2015-04-08 | 2015-07-08 | 武汉高铁桩工科技有限公司 | Variable cross-section extrusion-expansion screw pile drilling tool |
| CN105888576A (en) * | 2016-06-12 | 2016-08-24 | 江苏昌鑫基础工程有限公司 | Drilling assembly for integrated construction of long spiral bored perfusion pile top and cap |
| CN206015668U (en) * | 2016-08-26 | 2017-03-15 | 武汉谦诚桩工科技股份有限公司 | A kind of T-shaped pours into a mould the T-shaped drilling tool of pile driving construction |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106761415A (en) * | 2017-01-23 | 2017-05-31 | 中电建建筑集团有限公司 | The constructing device and its construction method of a kind of profound cast-in-situ bored pile |
| CN106761415B (en) * | 2017-01-23 | 2019-04-26 | 中电建建筑集团有限公司 | A kind of constructing device and its construction method of profound cast-in-situ bored pile |
| CN108086910A (en) * | 2018-01-18 | 2018-05-29 | 北京地矿工程建设有限责任公司 | Long spire extruded and extended pile drilling machine boring method and long spire extruded and extended pile drilling machine |
| CN108797578A (en) * | 2018-07-12 | 2018-11-13 | 上海市城市建设设计研究总院（集团）有限公司 | Crushed stone grouting pile and its construction method with classification enlarged footing |
| CN108755729A (en) * | 2018-08-20 | 2018-11-06 | 中铁二十局集团第工程有限公司 | A kind of CFG pile foundations pile cover and pile body integrative construction device and method |
| CN108755729B (en) * | 2018-08-20 | 2023-07-04 | 中铁二十局集团第一工程有限公司 | CFG pile foundation pile cap and pile body integrated construction device and method |
| CN115198770A (en) * | 2022-07-25 | 2022-10-18 | 浙江易通特种基础工程股份有限公司 | Positioning pile casing device and static drilling rooted pile construction method using same |
| CN115198770B (en) * | 2022-07-25 | 2024-05-28 | 浙江易通特种基础工程股份有限公司 | Positioning pile casing device and static drilling root pile planting construction method using same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106192996B (en) | 2018-06-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103556625B (en) | Complex squeezed pile forming construction method and complex squeezed pile forming device | |
| CN106192996B (en) | A kind of T shape drilling tools of construction method and T shapes the cast pile driving construction of T shapes stake | |
| CN100570122C (en) | Bidirectional helix extruding-enlarging pile construction method and bidirectional helix closed extruding-enlarging aiguille | |
| CN103806840B (en) | One-way spiral half soil compaction drill bit and one-way spiral half Squeezing Soil Pile construction technology | |
| CN201024899Y (en) | Two-directional spiral sealing extrusion and expansion aiguille | |
| CN206015668U (en) | A kind of T-shaped pours into a mould the T-shaped drilling tool of pile driving construction | |
| CN207296871U (en) | The structure-improved of full-sleeve twist bit | |
| CN206784372U (en) | Injection forming club-footed pile | |
| CN104389516A (en) | Squeezing enlarging cast-in-situ bored pile hole forming method | |
| CN201650119U (en) | Soil squeezing amount-adjustable bidirectional spiral squeezing and expanding bit | |
| CN102312427A (en) | Half soil squeezing screw expansion pile forming method | |
| CN103556628A (en) | Spiral conical soil compaction pile construction method | |
| CN113846632A (en) | Soil-squeezing pile construction method for reinforcing part of bearing layer | |
| CN203769662U (en) | One-way spiral semi-soil-squeezing drill bit | |
| CN106049462A (en) | Displacement pile and construction method and drilling tool thereof | |
| CN115125938B (en) | Composite pile construction method for built-in prefabricated pipe pile | |
| CN109098655B (en) | Multi-power composite drilling tool, preparation method and pile | |
| CN216920297U (en) | Construction device for long spiral drilling and pressure pouring concrete pile | |
| CN208089226U (en) | A kind of extruding and removing soil combination drill tool and CFG extruding and removing soil stakes | |
| CN101245597A (en) | Breast wall type cast-in-situ bored pile construction method and pile machine | |
| CN210737525U (en) | Powder-spraying spiral soil-squeezing pile-forming drilling tool device | |
| CN206246052U (en) | Soil compaction rotary-jetting bottom-expanding pile shaped device | |
| CN201679450U (en) | Bidirectional spiral extruding reaming drill with soil guiding grooves | |
| CN213625558U (en) | Spiral cone soil-squeezing pressure-filling pile with screw teeth and drill bit device for pile forming | |
| CN212801508U (en) | Grouting spiral steel pile for foundation stabilization |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A construction method of T-shaped pile and T-shaped drilling tool for T-shaped cast-in-place pile construction Effective date of registration: 20210302 Granted publication date: 20180626 Pledgee: Guanggu Branch of Wuhan Rural Commercial Bank Co.,Ltd. Pledgor: WUHAN QIANCHENG PILE WORK TECHNOLOGY Co.,Ltd. Registration number: Y2021420000008 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220120 Granted publication date: 20180626 Pledgee: Guanggu Branch of Wuhan Rural Commercial Bank Co.,Ltd. Pledgor: WUHAN QIANCHENG PILE WORK TECHNOLOGY CO.,LTD. Registration number: Y2021420000008 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A construction method of T-shaped pile and T-shaped drilling tool for T-shaped cast-in-place pile construction Effective date of registration: 20220125 Granted publication date: 20180626 Pledgee: Guanggu Branch of Wuhan Rural Commercial Bank Co.,Ltd. Pledgor: WUHAN QIANCHENG PILE WORK TECHNOLOGY CO.,LTD. Registration number: Y2022420000033 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230202 Granted publication date: 20180626 Pledgee: Guanggu Branch of Wuhan Rural Commercial Bank Co.,Ltd. Pledgor: WUHAN QIANCHENG PILE WORK TECHNOLOGY CO.,LTD. Registration number: Y2022420000033 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A construction method of T-shaped pile and T-shaped drilling tool for T-shaped cast pile construction Effective date of registration: 20230206 Granted publication date: 20180626 Pledgee: Guanggu Branch of Wuhan Rural Commercial Bank Co.,Ltd. Pledgor: WUHAN QIANCHENG PILE WORK TECHNOLOGY CO.,LTD. Registration number: Y2023420000019 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20180626 Pledgee: Guanggu Branch of Wuhan Rural Commercial Bank Co.,Ltd. Pledgor: WUHAN QIANCHENG PILE WORK TECHNOLOGY CO.,LTD. Registration number: Y2023420000019 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |