CN206015668U - A kind of T-shaped pours into a mould the T-shaped drilling tool of pile driving construction - Google Patents
A kind of T-shaped pours into a mould the T-shaped drilling tool of pile driving construction Download PDFInfo
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- CN206015668U CN206015668U CN201620954216.6U CN201620954216U CN206015668U CN 206015668 U CN206015668 U CN 206015668U CN 201620954216 U CN201620954216 U CN 201620954216U CN 206015668 U CN206015668 U CN 206015668U
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Abstract
This utility model is related to building foundation process field, and spy is related to the T-shaped drilling tool that a kind of T-shaped pours into a mould pile driving construction.Device of the present utility model includes drilling rod and drill bit, and the perfusion pore led in having in the middle of drilling rod, drill bit include that augers mechanism and extruding and expanding drilling tool mechanism, augers mechanism are enclosed within drilling rod, drilling rod termination connection 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 includes that extruding and expanding drilling tool body, lifting telescopic, expansion joint, Ji Luo mechanisms, torsion pass are won in succession, the second augers, squeezed gauge paste block and bottom are spudded in head.Device of the present utility model can improve the bearing capacity of pile foundation, and have laborsaving, and the used time is few, the advantage of efficiency high.
Description
Technical field
This utility model is related to building foundation process field, and spy is related to a kind of T-shaped of T-shaped cast pile driving construction and bores
Tool.
Background technology
With the development that National Industrial and residential construction area make rapid progress, for building basis requirement also increasingly
Height, especially 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 drilling cast-in-place concrete pile.
In the engineerings such as foundation stabilization, foundation ditch retaining wall, reservoir leakage stoppage, usually using the CIP engineering methods of casting reinforced concrete stake
With PIP engineering methods.But it is both defective.Chinese invention patent " 86100705 applying date of bore slurry pressuring pile-forming application number：
1986.01.25 " (at the expiration) discloses a kind of new method of perfusion reinforced concrete pile, overcomes between PIP engineering methods pile body and the soil body
The shortcoming in gap：Desired depth is bored into ".Whitewashed to hole inner high voltage by being located at the nozzle of drill bit while brill is carried, to slurry
Till liquid reaches the position dangerous without collapse hole；Steel reinforcement cage is placed in hole after trip-out, full pellet is thrown, and is put at least one directly
The high-pressure slip-casting sebific duct at through hole bottom, makees second pulp feeding with high pressure from bottom hole, until serosity reaches aperture ".
Chinese invention patent " a kind of construction method of bored concrete pile, application number：96119602.5 the applying date：1996-09-
01, " disclose a kind of Screw Pile technical scheme for improving bearing capacity：" preexisting hole is made with boring machine 1., 2. using with full spiral shell
The long screw auger drilling to completion of stricture of vagina, concrete or mortar are pumped out by drilling rod bottom, the Ti Zuan sides perfusion coagulation in rotation
Soil or mortar filling stake holes are until steel reinforcement cage is 3. sunk to element by the vibrator vibration being placed at the top of which mixed by ground, formation pile body
Screw Pile is made in solidifying soil pile body, the decrease speed and rotary speed of screw thread is controlled in going down process, is reversely rotated and is lifted spiral shell
Stricture of vagina is bored, and the lifting speed of its rotary speed as lower brill should keep synchronous and mate, and its advantage is：The bored concrete pile of making by
It is threaded in pile body, significantly improves the bearing capacity ratio common filling pile of stake.”
In addition the CFG stakes having been widely used (refer to the compound institute of the compositions such as sand, rubble, cement, flyash or slag
The pile body of formation)) in the application process for processing composite foundation, often need to enter after completing and arriving in the age of concrete
Row excavates pile crown, cuts the cumbersome process such as stake, formwork supporting plate, installs additional " pile cover " at stake top position, and master operation can not adopt machinery again
It is turned into industry, causes low the long in time limit of engineering, efficiency, high cost, effect poor.
Chinese invention patent " the process application number of nail-shaped pile pile：200310106224.2 the applying date：2003-11-
07, Southeast China University " a kind of process of nail-shaped pile pile is disclosed, it is that one kind is applied to deep soft soil foundation handling process side
Method, its operating procedure are as follows：The steel pile casting (2) that upper shed is big, under shed is little is set, the little opening of steel pile casting (2) is located at
Ground；Immersed tube (1) is inserted steel pile casting, at the upper shed of steel pile casting, with the laterally inserted immersed tube of latch (3), the two of latch is made
End is stuck at the upper shed of steel pile casting, pushes immersed tube with immersed tube machinery, steel pile casting is first pressed onto predetermined depth；Extract slotting
Pin, then proceedes to push immersed tube, makes immersed tube be pressed onto design stake depth；Immersed tube is extracted upwards, while backfilling plain concrete in pipe
Or the material such as CFG, then immersed tube is pushed expanding；Immersed tube is lifted up at steel pile casting, is extracted together with steel pile casting, and is irrigated mixed
The material such as solidifying soil or CFG, material is thus formed the plain concrete pile with cap or CFG stakes.
But this method construction equipment requires that horsepower is too big, and energy consumption is too high, is unfavorable for adopting.
Content of the invention
For the deficiencies in the prior art, this utility model provides the T-shaped drilling tool that a kind of T-shaped pours into a mould pile driving construction, into
During stake, it is extruded the soil body of a side periphery and fills close, the disposable pile of T-shaped pile body can be formed, pile foundation can be improved
Bearing capacity, and have laborsaving, the used time is few, the advantage of efficiency high.
The technical solution of the utility model is：A kind of T-shaped pours into a mould the construction method of stake, first gets out T-shaped stake holes, then to
Concrete perfusion in T-shaped stake holes, forms the T-shaped stake with cap, it is characterised in that：The slewing drilling machine of drilling with augers and is squeezed
Expanding drilling tool, during drilling rod is descending, augers gets out no longer descending behind pile cover hole, and extruding and expanding drilling tool continues to get out downwards a bar,
Return after getting into a bottom and carry, augers and extruding and expanding drilling tool return and carry the hollow conveying pipeline of drilling rod in whole process and continuously irrigate into stake holes and pour
Material feeding, until arriving the T-shaped cast stake of the stake holes degree of lip-rounding, augers is stepped down before the cast mouth of pipe is reached.
T-shaped as above pours into a mould the construction method of stake, it is characterised in that：During drilling rod is returned and carried, in extruding and expanding drilling tool
Screw thread cutter head stretch out, the bar portion in T-shaped stake during extruding and expanding drilling tool rotates forms thread groove, and subsequently perfusion is poured
Material feeding forms the screw thread that T-shaped pours into a mould stake.
Work progress of the present utility model, including the slewing drilling machine using high pulling torque, through in place, centering, leveling routine work
Skill is installed to construction machinery；Heavy in section pile cover hole is formed using augers；After forming heavy in section pile cover hole, spiral
Drill bit continues rotation in situ and resting state, drilling rod, advances downwardly the drilling rod hole that extruding and expanding drilling tool forms small bore pile body；Return
Turn drilling operation, make screw thread cutter head protruding outside to drill bit, screwer capitiform into negative angle point of contact direction, in small bore pile body
A side screw thread is rolled out in stake rod aperture；By compacted screw thread T-shaped drilling tool (being made up of augers and extruding and expanding drilling tool) and pile cover
Remaining soil is rotated and upgraded to steps such as ground.Using auger boring method of the present utility model, than the process of nail-shaped pile pile
To push method laborsaving, and the used time is few, efficiency high.In formation of pile, the soil body of a side periphery is made to obtain filling close, and stake
The screw thread of external side can greatly improve foundation bearing capacity, can also form the disposable pile of T-shaped pile body, can effectively solving stake top
The puncture problem formed by mattress layer is held, the bearing capacity of pile foundation can be improved.
T-shaped stake prepared by this utility model method, described stake shank diameter scope is 200～800mm, pile cover a diameter of
1.5～2.5 times of stake shank 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,
One kind in conditioned soil or the low-intensity compound containing firming agent, or its several combination.
A kind of T-shaped pours into a mould the T-shaped drilling tool of pile driving construction, including drilling rod and drill bit, logical perfusion pore in having in the middle of drilling rod,
It is characterized in that：Drill bit includes that augers mechanism and extruding and expanding drilling tool mechanism, augers mechanism are enclosed within drilling rod, drilling rod termination
Connection 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 mechanisms, torsion pass win in succession, the
Spud in head for two augers, squeezed gauge paste block and bottom；
The pipe that the first described augers leads in being, central hollow section arranges drilling rod, outside the first augers
Helical blade is set, and helical blade is welded on the first augers；First augers interior welds are provided with internal key, top
The limit switch no less than 2 is provided with, positioning joint is set in bar first half；Described extruding and expanding drilling tool body is arranged on spacing
Below joint, extruding and expanding drilling tool body leads in being, extruding and expanding drilling tool body upper part is with drilling rod by lifting telescopic, expansion joint axle
It is 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 include that a Chu Ji spiral shells mechanism, Ji Luo mechanisms are arranged on extruding and expanding drilling tool body, Ji Luo mechanisms include screw thread cutter head, wedge shape
Guide plate, bearing pin, screw thread cutter head are fixed on extruding and expanding drilling tool body by bearing pin, and wedge slide is arranged on the inside of screw thread cutter head, are squeezed
Expand the extexine that gauge paste block is arranged on extruding and expanding drilling tool body；Wedge slide is arranged on lifting telescopic.
According to the T-shaped drilling tool that T-shaped as above pours into a mould pile driving construction, it is characterised in that：Described extruding and expanding drilling tool body
Also include external key, internal key is in bond styles with external key when boring under drilling rod.
According to the T-shaped drilling tool that T-shaped as above pours into a mould pile driving construction, it is characterised in that：Described lifting telescopic and
Expansion joint is axially movable connection using polygon key or spline mode, and lifting telescopic is fixedly connected with drilling rod, is stretched
Win in succession with torsion pass and be fixedly connected in the lower end of reducer coupling head.
According to the T-shaped drilling tool that T-shaped as above pours into a mould pile driving construction, it is characterised in that：Described expansion joint afterbody
Won in succession by wedge slide, bearing pin, torsion pass and be connected with extruding and expanding drilling tool body.
According to the T-shaped drilling tool that T-shaped as above pours into a mould pile driving construction, it is characterised in that：Described extruding and expanding drilling tool mechanism
Including heat-insulated short tube, between heat-insulated short tube is arranged on the second augers and torsion pass is won in succession.
Advantage of the present utility model and good effect：
1st, reduces cost：Due to the T-shaped structure of the pile body of disposable pile, reduce pile crown and excavate, cut stake, formwork supporting plate etc.
Cumbersome process, improves the work efficiency of engineering, reduces construction cost.
2nd, than nail-shaped pile pile process to push method laborsaving, and the used time is few, efficiency high.
3rd, in formation of pile, the soil body of a side periphery is made to obtain filling close, and the screw thread on the outside of pile body can greatly improve ground
Base bearing capacity, can also form the disposable pile of T-shaped pile body, can effectively solving stake top end the puncture that mattress layer is formed is asked
Topic, can improve the bearing capacity of pile foundation.
4th, gas-permeable channels, release steam and aqueous vapor is formed between adjacent gauge paster, slow down into brill resistance.
Description of the drawings
Fig. 1 is：The threaded pile body structure schematic diagram of compacted screw thread T-shaped stake；
Fig. 2 is：The threadless pile body structure schematic diagram of compacted screw thread T-shaped stake；
Fig. 3 is：The structure chart of extruding and expanding drilling tool when being drilled down into；
Fig. 4 is：The structure chart of extruding and expanding drilling tool when lifting drilling；
Fig. 5 is：For drilling tool structure top view；
Fig. 6 is：Profile of the screw thread cutter head in contraction state (Fig. 3 A-A are to structural representation)；
Fig. 7 is：Profile (Fig. 4 B-B direction structural representation) of the screw thread cutter head when state is stretched out；
Fig. 8 is：Screw thread cutter head structure axonometric chart；
Fig. 9 is：Rig in pile-formation process flow process is in place, centering, leveling；
Figure 10 is：Creep into clockwise downwards, augers is separated；
Figure 11 is：Continue squeezed clockwise downwards drilling to whole hole；
Figure 12 is:Slightly stop, lifted, screwer head process goes out, crept into while squeezed clockwise, rolled thread；Synchronously pour
Build concrete；
Figure 13 is：Drilling is continued to lift up until entering in augers, is rotated jointly and is lifted, while continuously uninterruptedly pouring
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 1, the 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 the 14, second augers 15, bottom of winning in succession spuds in a 16, bearing pin 17, heat-insulated
Short tube 18, squeezed gauge paste block 19.
Specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in figure 1, a kind of compacted screw thread T-shaped stake of the present utility model 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 diameters are big, stake
Bar 3A diameters are little, and it is a kind of little cylindrical masses stake of the big lower diameter of upper diameter to make T-shaped stake 1A, its pile body structure symmetrical
Centre section is shaped as "T"-shaped.As shown in figure 1, the outside non-threaded of pile cover 2A of the present utility model, sets on the outside of its bar 3A
Put pile body screw thread 4A.Pile cover 2A of the present utility model, stake bar 3A can complete disposable pile.
Used as another kind of embodiment of the present utility model, the outside of its bar 3A also can be without non-threaded, as shown in Figure 2.
In this utility model, stake bar 3A diameter ranges are generally 200～800mm, a diameter of bar 3A diameter of pile cover 2A
1.5～2.5 times；The height of pile cover 2A is 1.2～2.5 times of a bar 3A diameter.
In this utility model, pile cover 2A, the material of stake bar 3A are mixed for concrete, conditioned soil or the low-intensity containing firming agent
Close the one kind in material, or its several combination.Concrete can adopt the concrete of different brackets label；Conditioned soil is different solid
The conditioned soil of agent volume, such as using 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 this utility model is adopted, including drilling rod 1 and drill bit, drilling rod 1
The perfusion pore that centre leads in having, drill bit include that augers mechanism and extruding and expanding drilling tool mechanism, augers mechanism are enclosed within drilling rod 1
On, 1 termination of drilling rod connection extruding and expanding drilling tool mechanism.
As shown in Figure 3 and Figure 4, augers mechanism of the present utility model includes the first augers 2, internal key 3, spiral
Blade 4, positioning joint 6, limit switch 5；Extruding and expanding drilling tool mechanism include lift telescopic 9, expansion joint 10, screw thread cutter head 11,
Wedge slide 12, bearing pin 13, torsion pass the 14, second augers 15, bottom of winning in succession spuds in 16 compositions.
As shown in Figure 3 and Figure 4, augers mechanism of the present utility model concrete structure is：First augers 2 leads in being
Pipe, central hollow section arranges drilling rod 1, arranges helical blade 4 outside the first augers 2, and helical blade 4 is welded on the
On one augers 2.First augers, 2 interior welds are provided with internal key 3, and top is provided with the limit switch no less than 2
5, in 1 first half of drilling rod, positioning joint 6 is set.It is that the first augers 2 that drilling rod 1 leads in passing through, spacing in drilling process
In the presence of the spacing and limit switch 5 of joint 6, axial limiting is simultaneously fixed, as shown in Figure 3.Internal key 3 and extruding and expanding drilling tool body 8
On external key 7, in bond styles, drilling rod 1 drives the first augers 2 to be rotated clockwise, to the projected depth of pile cover,
After forming the pile cover 2A of compacted screw thread T-shaped stake, temporarily cease revolution, operate limit switch 5, make the first augers 2 with squeezed
8 axial separation of drill body.
As shown in Figure 3 and Figure 4, extruding and expanding drilling tool mechanism of the present utility model concrete structure is：Extruding and expanding drilling tool mechanism forefront
For extruding and 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 leads in being, squeezed brill
8 top of tool body is socketed by lifting telescopic 9,10 axial stretching keyed of expansion joint with drilling rod 1, under extruding and expanding drilling tool body 8
Portion and torsion pass are won in succession and 14 are bolted to connection.Win in succession 14 lower end of torsion pass is fixedly welded with the second augers 15 and heat-insulated
Short tube 18, the second augers 15 and torsion pass are won in succession, on the outside of the cylinder of the second augers 15
It is provided with the helical blade with the circle such as 8 external diameter of extruding and expanding drilling tool body, the bottom of the second augers 15 is provided with bottom and spuds in 16, passes through
17 hingedly connected of bearing pin.
As shown in figure 4, lifting telescopic 9, expansion joint 10 in extruding and expanding drilling tool body of the present utility model 8, is provided with, its
Lifting telescopic 9 and expansion joint 10 are axially movable connection using polygon key or spline mode, and lifting telescopic 9 sets
It is equipped with wedge slide 12.Lifting telescopic 9 is fixedly connected with drilling rod 1, and the lower end of expansion joint 10 and torsion pass 14 fixations of winning in succession connect
Connect.Squeezed gauge paste block 19 is arranged on the extexine of extruding and expanding drilling tool body 8, the squeezed gauge paste block 19 pairs second of axial strip
The soil that augers 15 has been bored is pushed hole wall to and is compacted, and forms gas-permeable channels between adjacent squeezed gauge paste block 19, discharges steam
And aqueous vapor, slow down into brill resistance, as shown in Figure 6.
As shown in Figure 4, Figure 5, Figure 6 and Figure 7, expansion joint of the present utility model 10 is arranged on the outside of lifting telescopic 9, is passed
Torsion is won in succession and 14 is fixedly connected with lifting telescopic 9, and torsion pass is won in succession connection lifting telescopic 9 on rear side of 14, arranges in lifting telescopic 9
Screw thread cutter head 11,10 afterbody of expansion joint are won in succession by wedge slide 12, bearing pin 13, torsion pass and 14 are connected with extruding and expanding drilling tool body 8,
Described extruding and expanding drilling tool mechanism at least includes that a Chu Ji spiral shells mechanism, Ji Luo mechanisms are arranged on extruding and expanding drilling tool body 8, Ji Luo mechanisms
Including 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, wedge
Shape guide plate 12 is arranged on the inside of screw thread cutter head 11.When being drilled down into, the lifting telescopic 9 of drilling tool and expansion joint 10 are in receipts
Contracting state, is displaced downwardly to the extreme lower position of wedge shape radial direction with the wedge slide 12 of the lifting linkage of telescopic 9, and now screw thread cutter head 11 is equal
It is in contraction state (see Fig. 6).
Lifted 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 has larger frictional resistance and produces axial displacement on the outside of the stake holes because of 8 external diameter of extruding and expanding drilling tool body and after compacted, band
Wedge slide 12 on dynamic lifting telescopic 9, and in the case where wedge slide 12 is acted on, promote screw thread cutter head 11 to rotate around bearing pin 13,
Screw thread cutter head 11 is made to the protruding outside of drilling tool, the swing bar cam structure on approximate engineering mechanics, prominent screw thread cutter head
Formed with negative angle point of contact direction, a side screw thread can be rolled out well.
As shown in figure 4, extruding and expanding drilling tool mechanism of the present utility model includes that heat-insulated short tube 18, heat-insulated short tube 18 are arranged on second
Augers 15 and torsion pass are won in succession between 14.
As shown in figure 4, extruding and expanding drilling tool mechanism of the present utility model also includes that bottom spuds in 16, bottom spuds in 16 by bearing pin
17 and second augers 15.
The all right handed methods of drill bit in compacted screw thread T-shaped stake formation of pile of the present utility model,
Also it is applied to all counterclockwise rotates of drill bit.
The construction method of compacted screw thread T-shaped stake of the present utility model is：
1) using the slewing drilling machine of high pulling torque, construction machinery is installed through common process such as in place, centering, leveling
(Fig. 9)；
2) stop collar 3 in compacted screw thread T-shaped drilling tool will be mutually stuck to drilling rod 1 and the first augers 2, revolves drilling rod 1
Turn to drive the first augers 2 to rotate, rotation in the direction of the clock is drilled down into, and during drilling, dregs is along the first augers 2
Helical blade exclude 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 institutes
Show), now the bearing torque extensible member and 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 departing from axially and radially
Constraint and restriction, in situ and resting state, the extruding and expanding drilling tool mechanism of compacted screw thread T-shaped drilling tool continue clockwise to
Lower drilling, during pore-forming by compacted screw thread T-shaped drilling tool constantly drilling and extruding and expanding drilling tool mechanism pressing body make
With under, make the soil body of a side periphery obtain filling close, until stake projected depth, forms the open-hole (Figure 11) of stake bar 3A；
4) slightly stop to immediately enter lifting and rotary drilling operation clockwise in a moment, now the telescoping connection of extruding and expanding drilling tool mechanism
6 produce axial displacement because having larger frictional resistance on the outside of extruding and expanding drilling tool external diameter and the stake holes after compacted, by lifting
Move on wedge slide 10 on 5 drive telescopic 8 of set, and in the case where wedge slide 10 is acted 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 negative angle point of contact direction, can roll out a side screw thread well, as shown in Figure 12 and Figure 13.
While lifting is entered with rotary drilling clockwise, casting concrete or cementing material, are allowed to fast in time
The speed compacted open-hole of filling and thread-rolling screw space and pile.
5) when entrance is lifted with when at rotary drilling clockwise to pile cover 2A, stop collar 3 is made by drilling rod 1 and the first auger
2 mutually stuck, and then dextrorotation rotatory force is gone to augers rotation 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) concrete of continuous placing fills the empty space of heavy in section row of piles in time and 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 enter next pile driving construction.
The pile body screw thread 4A of compacted screw thread T-shaped stake only in drilling process is lifted using rolling realizing, the screw thread of pile body
And pitch fully can be ensured.But screw thread lead is because being affected by formation factor, the equal of pitch should not be deliberately pursued
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 compacted screw thread T-shaped stake of the present utility model be usually pore-forming starting stage just with creep into row expanding reach
Construction, it is adaptable to can be cast-in-situ bored pile, cement mixing method, compaction thread, long spiral CFG pile etc..
The beneficial effect of this utility model T-shaped pile construction method and its drilling tool is：
Improve bearing capacity：Mainly by compacted screw thread T-shaped drilling tool constantly drilling and extruding and expanding drilling tool pressing body make
With under, the soil body of a side periphery is made to obtain filling close, and the screw thread on the outside of pile body can greatly improve foundation bearing capacity, can also be formed
The disposable pile of T pile bodies, can effectively solving stake top end puncture problem that mattress layer is formed, the carrying of pile foundation can be improved
Power.
Environmental benefit：As the stake of compacted screw thread T-shaped is mainly by the compacted of stake holes, the soil body of stake holes is by compacted all to stake
(side), green, environmental protection construction, eliminates the mud contamination hang-up in conventional pile foundation construction, meets the environmental conservation political affairs of country
Plan.
Labor-saving high-efficiency, reduces cost：Due to the T-shaped structure of the pile body of disposable pile, reduce pile crown excavate, 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 particularly with complex ground treatment field is the extensive market demand.
Claims (5)
1. a kind of T-shaped pours into a mould the T-shaped drilling tool of pile driving construction, including the perfusion that drilling rod (1) and drill bit, drilling rod (1) centre lead in having
Pore, it is characterised in that：Drill bit includes that augers mechanism and extruding and expanding drilling tool mechanism, augers mechanism are enclosed within drilling rod (1),
Drilling rod (1) termination connection 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 and expanding drilling tool 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 is won in succession (14), the second augers
(15), spud in head (16) squeezed gauge paste block (19) and bottom；The pipe that described the first augers (2) leads in being, middle empty
Center portion sets up separately puts drilling rod (1), arranges helical blade (4) outside the first augers (2), and helical blade (4) is welded on the first spiral shell
In rotary drill (2)；First augers (2) interior welds are provided with internal key (3), and what top was provided with no less than 2 spacing opens
Close (5), positioning joint (6) is set in drilling rod (1) first half；Described extruding and expanding drilling tool body (8) is arranged under positioning joint (6)
Square, extruding and expanding drilling tool body (8) leads in being, extruding and expanding drilling tool body (8) top is with drilling rod (1) by lifting telescopic (9), stretching
Joint (10) axial stretching keyed is socketed, extruding and expanding drilling tool body (8) bottom and torsion pass win in succession (14) be bolted to connection；Institute
The extruding and expanding drilling tool mechanism for stating at least includes squeezing spiral shell device at one, 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) pass through bearing pin
(13) it is fixed on extruding and expanding drilling tool body (8), wedge slide (12) is arranged on the inside of squeezed cutter head (11), squeezed gauge paste block
(19) extexine of extruding and expanding drilling tool body is arranged on；Wedge slide (12) is arranged in lifting telescopic (9).
2. T-shaped according to claim 1 pours into a mould the T-shaped drilling tool of pile driving construction, it is characterised in that：Described extruding and expanding drilling tool sheet
Body (8) also includes external key (7), and when boring under drilling rod (1), internal key (3) is in bond styles with external key (7).
3. T-shaped according to claim 1 pours into a mould the T-shaped drilling tool of pile driving construction, it is characterised in that：Described lifting is stretched
Set (9) and expansion joint (10) are axially movable connection, lifting telescopic (9) and brill using polygon key or spline mode
Bar (1) is fixedly connected, the lower end of expansion joint (10) win in succession with torsion pass (14) be fixedly connected.
4. T-shaped according to claim 1 pours into a mould the T-shaped drilling tool of 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).
5. T-shaped according to claim 1 pours into a mould the T-shaped drilling tool of pile driving construction, it is characterised in that：Described extruding and expanding drilling tool machine
Structure includes heat-insulated short tube (18), and heat-insulated short tube (18) are 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 |
|---|---|---|---|
| CN201620954216.6U CN206015668U (en) | 2016-08-26 | 2016-08-26 | A kind of T-shaped pours into a mould the T-shaped drilling tool of pile driving construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620954216.6U CN206015668U (en) | 2016-08-26 | 2016-08-26 | A kind of T-shaped pours into a mould the T-shaped drilling tool of pile driving construction |
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| Publication Number | Publication Date |
|---|---|
| CN206015668U true CN206015668U (en) | 2017-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106192996A (en) * | 2016-08-26 | 2016-12-07 | 武汉谦诚桩工科技股份有限公司 | The construction method of a kind of T-shaped stake and the T-shaped drilling tool of T-shaped cast pile driving construction |
| 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 |
| CN117021373A (en) * | 2023-09-28 | 2023-11-10 | 山东鲁国智能工程有限公司 | Portable drilling device |
-
2016
- 2016-08-26 CN CN201620954216.6U patent/CN206015668U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106192996A (en) * | 2016-08-26 | 2016-12-07 | 武汉谦诚桩工科技股份有限公司 | The construction method of a kind of T-shaped stake and the T-shaped drilling tool of T-shaped cast pile driving construction |
| 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 |
| CN117021373A (en) * | 2023-09-28 | 2023-11-10 | 山东鲁国智能工程有限公司 | Portable drilling device |
| CN117021373B (en) * | 2023-09-28 | 2023-12-05 | 山东鲁国智能工程有限公司 | Portable drilling device |
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