CN108755729A - A kind of CFG pile foundations pile cover and pile body integrative construction device and method - Google Patents
A kind of CFG pile foundations pile cover and pile body integrative construction device and method Download PDFInfo
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- CN108755729A CN108755729A CN201810946185.3A CN201810946185A CN108755729A CN 108755729 A CN108755729 A CN 108755729A CN 201810946185 A CN201810946185 A CN 201810946185A CN 108755729 A CN108755729 A CN 108755729A
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- 238000010276 construction Methods 0.000 title claims abstract description 98
- 238000000034 method Methods 0.000 title claims abstract description 45
- 238000005553 drilling Methods 0.000 claims abstract description 319
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- 230000008569 process Effects 0.000 claims abstract description 29
- 230000001360 synchronised effect Effects 0.000 claims abstract description 27
- 241001074085 Scophthalmus aquosus Species 0.000 claims abstract description 18
- 238000009434 installation Methods 0.000 claims abstract description 15
- 230000007246 mechanism Effects 0.000 claims description 27
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
-
- 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 OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/42—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits
- E21B10/43—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits characterised by the arrangement of teeth or other cutting elements
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/44—Bits with helical conveying portion, e.g. screw type bits; Augers with leading portion or with detachable parts
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/04—Directional drilling
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Abstract
The invention discloses a kind of CFG pile foundations pile covers and pile body integrative construction device and method, the device includes the long spire stake machine constructed to constructed CFG and the pile cover constructing device on long spire stake machine, and pile cover constructing device includes pile cover drill bit and the drill bit leading truck that is oriented to pile cover drill bit；The method comprising the steps of：One, drilling machine is in place；Two, pile cover constructing device and power transmission parts installation；Three, pile cover forming hole is crept into；Four, pile body forming hole is crept into；Five, it carries brill and pile concrete synchronizes pouring construction；Six, brill and pile cover concrete synchronous pouring construction are carried.Reasonable design of the present invention, easy to operate and using effect are good, pile cover constructing device is formed by adding pile cover drill bit and drill bit leading truck on long spire stake machine, the rotation of pile cover constructing device is driven to complete pile cover forming hole drilling using long spire stake driver drilling rod, without adding power-equipment, pile cover and pile body integrated construction process can be realized.
Description
Technical field
The invention belongs to piling Technology fields, more particularly, to a kind of CFG pile foundations pile cover and pile body integrated construction
Device and method.
Background technology
CFG are also referred to as cement fly ash gravel pile, are mixed and stirred and are slurried by rubble, aggregate chips, sand, flyash mixed cement plus water
The variable intensity stake with some strength made of various forming machinery is used in combination in liquid.CFG are a kind of Low Intensity Concrete Piles,
The bearing capacity collective effect of inter-pile soil can be made full use of, and can be transmitted in load to deep foundation base, is had preferable technical
Energy and economic effect.Long spire stake machine is also referred to as long-spiral drilling machine, which includes hydraulic moving mechanism pile frame and drilling system two parts.
Wherein, pile frame generally uses hydraulic walking chassis, and high degree of automation, can voluntarily walk and 360 degree are turned round, and be equipped with four liquid
The complete machine stability of pressure supporting leg and a walking oil cylinder to assist walking and turn round while when increasing construction, can complete machine turned
Fortune.The column of pile frame is folding box column.Drilling system includes power head and drilling tool, the output shaft and spiral of power head
Drilling tool is hollow type, and stake machine uses long spire pore-forming, can be pumped by carrying out concrete (or mud) in drilling rod and complete CFG
Construction, can one machine of Completion of Drilling Hole once complete, it can also be used to dry method pore-forming, slip casting displacement change drilling tool after can also take deep layer
A variety of engineering methods such as stirring are constructed.Currently, when carrying out CFG pile driving constructions using long-spiral drilling machine, after pile body molding, then stake is carried out
Cap is constructed, and is needed to carry out soil around pile excavation, cut pile crown, the processes such as pile cover construct, is backfilling and compacted in stake week, more with process,
The shortcomings of construction time is long, cost is higher.
Invention content
In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is that providing a kind of CFG pile foundations
Pile cover and pile body integrative construction device, reasonable in design, easy to operate and using effect is good, by long spire stake machine
On add pile cover drill bit and drill bit leading truck composition pile cover constructing device, using long spire stake driver drilling rod drive pile cover constructing device
Pile cover forming hole drilling is completed in rotation, without adding power-equipment, can realize pile cover and pile body integrated construction process.
In order to solve the above technical problems, the technical solution adopted by the present invention is：A kind of CFG pile foundations pile cover is integrated with pile body
Constructing device, it is characterised in that：It include the long spire stake machine constructed to constructed CFG and on the long spire stake machine
Pile cover constructing device, the pile cover constructing device include to constructed CFG of pile cover carry out drilling construction pile cover drill bit
With the drill bit leading truck being oriented to pile cover drill bit, the drill bit leading truck is mounted on pile cover drill bit, the pile cover drill bit
In to laying, the drill bit leading truck is in horizontal layout vertically；Constructed CFG includes pile body and being coaxially laid in pile body top
Pile cover, the pile body and pile cover is connected as one and the cross section of the two is circle, the pile cover and pile body are in vertical
To laying；The diameter of pile body all same from the bottom to top；
The spiral that the pile cover drill bit includes drilling pipe and is along the circumferential direction from top to bottom laid on drilling pipe lower outside wall
Drill, the drilling pipe are that coaxial package synchronizes rotation on the drilling rod of long spire stake machine and by drilling rod drive from the bottom to top
Cylindrical steel sleeve is provided on the drilling rod and drilling pipe is pushed to synchronize the rotation forces mechanism rotated, the rotation forces
Mechanism is not more than the height of drilling pipe with the vertical spacing of drilling rod bottom end；
The drill bit leading truck include coaxial package in drilling pipe retaining collar and retaining collar is installed on long spire
Lantern ring fixing piece on the pile frame of stake machine, the retaining collar and the lantern ring fixing piece are in horizontal layout, and the lantern ring is solid
The one end for determining part is connect with retaining collar and its other end is connect with the pile frame.
A kind of above-mentioned CFG pile foundations pile cover and pile body integrative construction device, it is characterized in that：The diameter of the pile cover by down toward
Upper all same, the diameter of pile body are less than the diameter of pile cover；The spiral drill is screw blade and its outer diameter is homogeneous from the bottom to top
Together, the outer diameter of the screw blade and the diameter of pile cover are identical, the width of screw blade all same from the bottom to top.
A kind of above-mentioned CFG pile foundations pile cover and pile body integrative construction device, it is characterized in that：The diameter of the pile cover by down toward
Upper gradually to increase, the base diameter of the pile cover is identical as the diameter of pile body；The spiral drill is screw blade and its outer diameter
Gradually increase from the bottom to top, the bottom outer diameter of the screw blade is identical as the diameter of pile body, the width of the screw blade by
Under supreme gradual increase.
A kind of above-mentioned CFG pile foundations pile cover and pile body integrative construction device, it is characterized in that：The drill bit leading truck is can edge
The pile frame is vertically moved up and down and pile cover drill bit is driven to synchronize the mobile leading truck moved up and down, the fixation
Lantern ring is set in the upper outside of pile cover drill bit, and the auger cutter spacing is below retaining collar；The upper outside of the drilling pipe
The lantern ring locating part limited to retaining collar is provided on wall, the lantern ring locating part includes upper limit part and is located at described
Lower limit part immediately below upper limit part, the upper limit part and the lower limit part are in horizontal layout and the two is both secured to
On the upper outside wall of drilling pipe；The retaining collar is the cylinder being installed between the upper limit part and the lower limit part
Lantern ring.
A kind of above-mentioned CFG pile foundations pile cover and pile body integrative construction device, it is characterized in that：The long spire stake machine includes institute
Pile frame and drilling system are stated, the pile frame includes column and column is driven to carry out mobile mobile mechanism；The drilling system packet
The power head for including drilling tool and being driven to the drilling tool is provided on the column and is led for what power head moved up and down
Rail；
The lantern ring fixing piece include be installed on the guide rail and can along the clamping part that the guide rail moves up and down,
The retaining collar and clamping part are attached fixation by connector, and the clamping part and the connector are laid in same water
In plane.
A kind of above-mentioned CFG pile foundations pile cover and pile body integrative construction device, it is characterized in that：The drilling rod include core bar and by
Under the supreme screw thread blade being laid on the outside of the core bar, the core bar be cylindrical bar, the spiral drill be screw thread drill,
The screw thread blade is identical with the hand of spiral of spiral drill；
The top of the drilling pipe is along the circumferential direction laid with multiple power transmission parts, and the rotation forces mechanism includes multiple
Be laid on the screw thread blade and to the rotation forces part that power transmission parts are pushed, each power transmission parts by
One rotation forces part is pushed, and each rotation forces part is respectively positioned on rear side of pushed power transmission parts.
A kind of above-mentioned CFG pile foundations pile cover and pile body integrative construction device, it is characterized in that：Multiple power transmission parts are equal
It is laid in same level；Each power transmission parts include a vertical block for being fixed on drilling pipe top outer and
Horizontal pin shaft on vertical block is provided with the through-hole inserted for horizontal pin shaft on the vertical block；Multiple water
The structure snd size all same of flat-sale axis, multiple horizontal pin shafts along the circumferential direction lay and center axis with drilling pipe
Central axis intersects；Each the level interval between the horizontal pin shaft inner end and drilling pipe central axis is all higher thanWherein d is
The outer diameter of the core bar.
Meanwhile a kind of the present invention also provides method and steps simple, reasonable design and easy construction, the construction period is short, makes
With the good CFG pile foundations pile cover of effect and pile body integral construction method, which is characterized in that this approach includes the following steps：
Step 1: drilling machine is in place：Long spire stake machine is moved to constructed CFG of construction area, and drilling rod is made to be located at
Right over constructed CFG of stake position；
Step 2: pile cover constructing device and power transmission parts installation：In step 1 on mobile long spire stake machine in place
The pile cover constructing device is installed, while multiple power transmission parts being installed at the top of the drilling pipe, and drilling rod is vertical
It is moved downward to each rotation forces part to be respectively positioned on rear side of pushed power transmission parts, drilling rod is applied with the pile cover at this time
Tooling sets composition pile cover drilling and forming hole device；
Step 3: pile cover forming hole is crept into：It is from top to bottom crept into, is obtained using the device of pile cover drilling and forming hole described in step 2
Obtain the pile cover forming hole of construction molding；
The pile cover drilling and forming hole device from top to bottom in drilling process, is crept into from top to bottom using drilling rod；The drilling rod
From top to bottom in drilling process, crept into from top to bottom by rotation forces mechanism urges drilling pipe synchronization；
Step 4: pile body forming hole is crept into：Multiple power transmission parts in step 2 are removed, and using drilling rod after
It is continuous to creep into from top to bottom, obtain the pile body forming hole of construction molding；
Step 5: carrying brill and pile concrete synchronization pouring construction：Be lifted up drilling rod, until drilling rod bottom and pile cover at
Type hole bottom flush；During being lifted up, synchronized from the bottom to top to pile body forming hole using grouting equipment and by drilling rod
Interior concrete perfusion completes the filling concrete work progress of pile body；
It is connected by grouting pipe between the grouting equipment and drilling rod upper end；
Step 6: carrying brill and pile cover concrete synchronous pouring construction：It is lifted up drilling rod, until drilling rod is from pile cover forming hole
Interior proposition；During being lifted up, filled into pile cover forming hole using the grouting equipment and by the way that drilling rod is synchronous from the bottom to top
Concrete is noted, the filling concrete work progress of pile cover is completed.
The above method, it is characterized in that：Multiple power transmission parts are laid in same level in step 2；Each
The power transmission parts include a vertical block for being fixed on drilling pipe top outer and the level on vertical block
Axis pin is provided with the through-hole inserted for horizontal pin shaft on the vertical block；The structure snd size of multiple horizontal pin shafts are homogeneous
Together, multiple horizontal pin shafts are along the circumferential direction laid and center axis intersects with the central axis of drilling pipe；It is each described
Level interval between horizontal pin shaft inner end and drilling pipe central axis is all higher thanWherein d is the outer diameter of the core bar；
Drilling rod bottom and drilling pipe bottom flush in the pile cover drilling and forming hole device；
In step 2 when multiple power transmission parts are installed at the top of the drilling pipe, on each vertical block
Horizontal pin shaft is inserted, and inserted horizontal pin shaft is made to be located on front side of a rotation forces part；
When removing multiple power transmission parts in step 4, by multiple horizontal pin shafts from vertical block
It extracts；
Before carrying out carrying brill and pile cover concrete synchronous pouring construction in step 6, by the pile cover constructing device by down toward
On proposed out of pile cover forming hole；Or carried out in step 6 during carrying brill and pile cover concrete synchronous pouring construction, by institute
State that pile cover constructing device is synchronous with drilling rod to be promoted from the bottom to top.
The above method, it is characterized in that：It is lifted up before drilling rod in step 5, first passing through the grouting equipment will be in drilling rod
Fill concrete；
When being lifted up drilling rod in step 5, it is 2m/min~3m/min that drilling rod, which is at the uniform velocity lifted up, and promotes speed；
When being lifted up drilling rod in step 6, drilling rod is at the uniform velocity lifted up and promotes promotion speed of the speed less than drilling rod in step 5
Degree；
After long spire stake machine is moved to constructed CFG of construction area in step 1, it is lifted up drilling rod, and make brill
Vertical spacing between bar bottom and ground is more than the height of drilling pipe；
It is symmetrical arranged on the outside of retaining collar described in the pile cover constructing device there are two lifting lug, is opened in the middle part of the lifting lug
Equipped with the lifting hole(eyelet) passed through for lifting rope, lifting rope bottom banding fixed is on lifting lug；
It is after the pile cover constructing device is installed on long spire stake machine in step 2, the top of two lifting ropes is solid
It is scheduled on the power head of long spire stake machine, so that the pile cover constructing device is passed through two lifting ropes and be lifted below power head；
In step 3 before pile cover forming hole drilling, by pile cover constructing device decentralization synchronous with drilling rod, until drilling pipe
Bottom is supported on ground；
It is by when multiple power transmission parts are removed in step 2 in step 4, the top of two lifting ropes is driven
It is separated on power head, to disconnect the connection between the pile cover constructing device and power head；
It is lifted up before drilling rod in step 6, the top of two lifting ropes is each attached on power head, then by institute
State that pile cover constructing device is synchronous with drilling rod to be promoted from the bottom to top.
Compared with the prior art, the present invention has the following advantages：
1, used pile cover constructing device simple structure and reasonable design and installation and easy to use, input cost
It is relatively low.
2, used pile cover constructing device is rotated and is moved up and down by the drive of existing long spire stake machine, without increasing
If power-equipment, can effectively save equipment input cost, and synchronouss with drilling rod can carry out, it is ensured that the synchronism of drilling process with
Pile quality can be effectively ensured in stability.
3, small to the change of existing long spire stake machine, only pile cover constructing device need to be installed on long spire stake machine can obtain
CFG pile covers and pile body integrative construction device increase pile cover drill bit and are oriented to by carrying out easy transformation to long-spiral drilling machine
Device (i.e. drill bit leading truck), without in addition increasing power, you can the integrated construction of satietin concrete pile follower and pile body.
4, construction method is simple, highly practical, pile cover construction without soil around pile digging up and filling in process, pile cover and pile body once at
Type, pile crown cleaning are simple and fast；Also, operability is strong, and pile cover part is crept into design position, removal pile cover drill bit and drilling machine
Between axis pin after carry out lower part pile body drilling, filling concrete is excavated using pump pressure pipe laying method one-pass molding, no soil around pile side
Process is backfilled, clears up the loose concrete of pile crown before cushion construction.
5, environmental protection effect is good, and no soil around pile side excavates and is backfilling and compacted process, cleaning pile crown concrete and a section pile crown
It compares, reduces concrete waste；Meanwhile scrap build is easy, and is had and is reduced the Environmental Effects such as soil erosion, energy saving consumption
Benefit.
6, cost can be reduced conscientiously and shortened the construction period, simplify CFG pile driving construction processes, become pile cover and pile body separately construct into
One-pass molding improves construction efficiency；No soil around pile excavates and is backfilling and compacted process, and pile crown clears up loose concrete and relatively cuts pile crown
Saving expense is substantially reduced, and the energy effectively save duration, hence it is evident that reduces cost；Meanwhile work progress is safe and reliable, construction quality
Controllably, and pile cover and pile body one-pass molding, it is ensured that the concrete quality of connection between pile cover and pile body.The present invention can not only
One-pass molding suitable for CFG elements round concrete pile follower and pile body can be suggested being changed to for rectangular plain concrete pile cover
It is used after round pile cover.Can also be used for reducing CFG pile driving constructions, in order to more preferably increase the connection between pile cover and pile body, also at
Boring mud is removed after stake in time, and reinforcing bar is inserted into pile center.Thus, there is extensive popularizing application prospect, economic benefit and society
Meeting benefit is apparent.
In conclusion reasonable design of the present invention, easy to operate and using effect are good, by adding stake on long spire stake machine
Cap drill bit and drill bit leading truck form pile cover constructing device, drive the rotation of pile cover constructing device to complete using long spire stake driver drilling rod
Pile cover forming hole is crept into, and without adding power-equipment, can realize pile cover and pile body integrated construction process.
Below by drawings and examples, technical scheme of the present invention will be described in further detail.
Description of the drawings
Fig. 1 is the use state reference chart of CFG pile foundations pile cover of the present invention and pile body integrative construction device.
Fig. 2 is the structural schematic diagram of pile cover constructing device of the present invention.
Fig. 3 is the structural schematic diagram of pile cover drill bit of the present invention.
Fig. 4 is the planar structure schematic diagram of drill bit leading truck of the present invention.
Fig. 5 is the schematic view of facade structure of drill bit leading truck of the present invention.
Fig. 6 is that the present invention carries out CFG pile foundations pile cover and construction method flow diagram when pile body integrated construction.
Fig. 7 is the Construction State schematic diagram when present invention carries out pile body forming hole drilling.
Fig. 8 is the Construction State schematic diagram when present invention carries out pile cover forming hole drilling.
Fig. 9 is the Construction State schematic diagram when present invention carries out pile concrete pouring construction.
Figure 10 is the Construction State schematic diagram when present invention carries out the construction of pile cover filling concrete.
Figure 11 is the use state reference chart of power transmission parts of the present invention and rotation forces part.
Reference sign:
1-drill bit leading truck；2-pile cover drill bits；3-clamp part；
4-retaining collars；5-card holding troughs；6-drilling pipes；
7-spiral drills；8-soil outlets；9-the first connecting plate；
10-the second connecting plate；11-vertical blocks；12-horizontal pin shafts；
13-lifting lugs；14-lifting hole(eyelet)s；15-long spire stake machines；
15-1-drilling rod；15-2-column；15-3-power head；
16-pile bodies；17-pile covers；18-spacing rings；
19-power transmission parts；20-rotation forces parts；21-pile cover forming holes；
22-pile body forming holes；23-lifting ropes.
Specific implementation mode
A kind of CFG pile foundations pile cover as shown in Figure 1 and pile body integrative construction device, including constructed CFG is carried out
The long spire stake machine 15 and the pile cover constructing device on long spire stake machine 15 of construction；In conjunction with Fig. 2, the pile cover construction dress
Set the drill bit including carrying out the pile cover drill bit 2 of drilling construction to constructed CFG of pile cover 17 and being oriented to pile cover drill bit 2
Leading truck 1, the drill bit leading truck 1 are mounted on pile cover drill bit 2, and the pile cover drill bit 2 is in vertically to laying, and the drill bit is led
It is in horizontal layout to frame 1；As shown in Figure 10, include pile body 16 and be coaxially laid in the pile cover on 16 top of pile body for constructed CFG
17, the pile body 16 and pile cover 17 is connected as one and the cross section of the two is circle, the pile cover 17 and pile body 16 are in
Vertically to laying；The diameter of the pile body 16 all same from the bottom to top；
As shown in figure 3, the pile cover drill bit 2 includes drilling pipe 6 and is along the circumferential direction from top to bottom laid in outside 6 lower part of drilling pipe
Spiral drill 7 on side wall, the drilling pipe 6 are coaxial package from the bottom to top on the drilling rod 15-1 of long spire stake machine 15 and by boring
Bar 15-1 drives the cylindrical steel sleeve for synchronizing rotation, is provided on the drilling rod 15-1 and pushes drilling pipe 6 to synchronize to be turned
Dynamic rotation forces mechanism, the rotation forces mechanism are not more than the height of drilling pipe 6 with the vertical spacing of the bottom ends drilling rod 15-1；
As shown in Figure 4, Figure 5, the drill bit leading truck 1 include coaxial package in drilling pipe 6 retaining collar 4 and will fix
Lantern ring 4 is installed on the lantern ring fixing piece on the pile frame of long spire stake machine 15, and the retaining collar 4 and the lantern ring fixing piece are in
One end of horizontal layout, the lantern ring fixing piece is connect with retaining collar 4 and its other end is connect with the pile frame.
In actual use, drilling pipe 6 is oriented to by retaining collar 4, it is ensured that pile cover forming hole 21 crept into
Cheng Zhong, drilling pipe 6 (i.e. pile cover drill bit 2) will not move radially, and on the one hand ensure that the hole level of pile cover forming hole 21 is true, another
Aspect can effectively ensure that the drilling process of pile cover forming hole 21 can easy, lasting, effectively progress.
In the present embodiment, screw thread leaf that the drilling rod 15-1 includes core bar and is laid in from the bottom to top on the outside of the core bar
Piece, the core bar are cylindrical bar, and the spiral drill 7 is screw thread drill, the screw thread side of the screw thread blade and spiral drill 7
To identical.
The screw thread blade and spiral drill 7 are single thread.Thus, the structure of the pile cover drill bit 2 is simple and processes
It is simple for production.
In the present embodiment, the internal diameter of the drilling pipe 6 is more than the outer diameter of the screw thread blade.
In the present embodiment, the height of the retaining collar 4 is 0.8L~1L, and wherein L is the screw pitch of the screw thread blade.It is real
Border in use, be clearance fit between the retaining collar 4 and drilling pipe 6, by internal diameter to retaining collar 4 and height respectively into
Row limits, and so that retaining collar 4 is carried out guiding role to drilling pipe 6 and fully, effectively plays, while reaching through 4 energy of retaining collar
Effective protection is carried out to drilling pipe 6, increases the intensity of drilling pipe 6, thereby further ensures that drilling effect.
The drilling pipe 6 is connected to by the lantern ring fixing piece on the pile frame, using the pile frame as drill bit leading truck 1
The impetus of guiding without adding any fixation means, saving of work and time again at the construction field (site), and is fixedly connected easy, reliable.
Meanwhile drilling pipe 6 is further limited by the lantern ring fixing piece.
In the present embodiment, all same, the diameter of pile body 16 are less than the straight of pile cover 17 to the diameter of the pile cover 17 from the bottom to top
Diameter；The spiral drill 7 is screw blade and its outer diameter all same from the bottom to top, outer diameter and the pile cover 17 of the screw blade
Diameter is identical, the width of screw blade all same from the bottom to top.
When practice of construction, the diameter of the pile cover 17 can also gradually increase from the bottom to top, and the bottom of the pile cover 17 is straight
Diameter is identical as the diameter of pile body 16；The spiral drill 7 is screw blade and its outer diameter gradually increases from the bottom to top, the spiral
The bottom outer diameter of blade is identical as the diameter of pile body 16, and the width of the screw blade gradually increases from the bottom to top.At this point, described
Pile cover drill bit 2 is expansion bit.Thus, the occupation mode of the pile cover drill bit 2 is very flexible.
In the present embodiment, the drill bit leading truck 1 is that can vertically be moved up and down along the pile frame and pile cover is driven to bore
First 2 synchronize the mobile leading truck moved up and down.
In this way, the drill bit leading truck 1 does not have an impact the drilling process of pile cover drill bit 2 and drilling rod 15-1.One side
Face, the drill bit leading truck 1 will not have any impact to the axial rotation of drilling rod 15-1 and moving up and down, the pile cover construction
Though device is mounted on long spire stake machine 15, any influence will not be brought to the normal construction process of long spire stake machine 15, it is long
Screw pile machine 15 is constructed according to conventional construction method.On the other hand, the drill bit leading truck 1 can be with pile cover drill bit
2 synchronize and move up and down, and can ensure that the drill bit leading truck 1 can carry out pile cover drill bit 2 (i.e. drilling pipe 6) in any case
Guiding and effective protection, and drill bit leading truck 1 is moved up and down along the pile frame, is set in this way without adding additional movement
It is standby, it can effectively reduce cost, saving of work and time.
In the present embodiment, the retaining collar 4 is set in the upper outside of pile cover drill bit 2, and the spiral drill 7 is located at solid
Determine 4 lower section of lantern ring；The lantern ring locating part limited to retaining collar 4 is provided on the upper outside wall of the drilling pipe 6, it is described
Lantern ring locating part includes upper limit part and the lower limit part immediately below the upper limit part, the upper limit part and it is described under
Locating part is in horizontal layout and the two is both secured on the upper outside wall of drilling pipe 6；The retaining collar 4 is described to be installed in
Cylindrical lantern ring between upper limit part and the lower limit part.
In the present embodiment, the upper limit part and the lower limit part are spacing ring 18.
When actual processing, the upper limit part and the lower limit part can also use other types of position-limit mechanism.
According to general knowledge known in this field, the long spire stake machine 15 includes the pile frame and drilling system, the pile frame packet
It includes column 15-2 and column 15-2 is driven to carry out mobile mobile mechanism；The drilling system include drilling tool and to the drilling tool into
The power head 15-3 of row driving, is provided with the guide rail moved up and down for power head 15-3 on the column.
The guide rail is mounted on column 15-2, and the mobile mechanism is mounted on the bottoms column 15-2, the power head 15-
3, which are laid in hoisting structure, is fixed on column 15-2, and power head 15-3 can be moved up and down along the guide rail.The power
Head 15-3 be that driving drilling rod 15-1 rotate and the rotation driving that drilling rod can be driven to move up and down and lifting device.
In the present embodiment, the lantern ring fixing piece includes being installed on the guide rail and capable of carrying out moving down along the guide rail
Dynamic clamping part 3, the retaining collar 4 and clamping part 3 are attached fixation, the clamping part 3 and the company by connector
Fitting is laid in same level.
The lantern ring fixing piece can be directly installed on the guide rail by clamping part 3, and being mounted directly easy, connection can
Lean on, when design processing, the structure for clamping part 3 need to be only determined according to the structure of the guide rail, and according to the guide rail with
The outer diameter of spacing and the drilling pipe 6 between drilling rod 15-1 is determined the length of the connector.In this way, to long spiral shell
The included guide rail of pile rotating machine 15 is efficiently used, and the drill bit leading truck 1 is moved up and down using the guide rail, letter
It is single practical.
In the present embodiment, it is arranged for the rotation forces mechanism urges by impeller in the drilling pipe 6.
In actual use, the rotation forces mechanism may be direct support top or the pushing mechanism that is installed in drilling pipe 6.
It is easy to push, it can also be provided with the support top mechanism for rotation forces mechanism support top in the drilling pipe 6 or supply the rotation
Turn the clamping part of pushing mechanism clamping.
As shown in Figure 1, shown in Figure 11, the top of the drilling pipe 6 is along the circumferential direction laid with multiple power transmission parts 19, the rotation
Turn pushing mechanism include it is multiple be laid on the screw thread blade and to the rotation forces part 20 that power transmission parts 19 are pushed,
Each power transmission parts 19 are pushed by a rotation forces part 20, each 20 equal position of the rotation forces part
In 19 rear side of power transmission parts pushed.In actual use, the rotation forces part 20 be from the front to the back propulsion power biography
Send the impeller of part 19.Thus, multiple power transmission parts 19 form described by impeller.
As shown in Figure 2 and Figure 3, each power transmission parts 19 are fixed on the vertical of 6 top outer of drilling pipe including one
Block 11 and the horizontal pin shaft 12 on vertical block 11 are provided on the vertical block 11 and to be inserted for horizontal pin shaft 12
Through-hole；The structure snd size all same of multiple horizontal pin shafts 12, multiple horizontal pin shafts 12 along the circumferential direction lay and
Center axis intersects with the central axis of drilling pipe 6；Between 6 central axis of each 12 inner end of the horizontal pin shaft and drilling pipe
Level interval is all higher thanWherein d is the outer diameter of the core bar.
The power transmission parts 19 are identical with the quantity of rotation forces part 20 and the installation position of the two corresponds.It is practical
, can according to specific needs when processing, quantity and installation position to power transmission parts 19 and rotation forces part 20 carry out phase respectively
It should adjust.
The horizontal pin shaft 12 is removable connector.In the present embodiment, the outer end of the horizontal pin shaft 12 is inserted into perpendicular
To on block 11, the inner end of each horizontal pin shaft 12 is installed on 20 front side of rotation forces part pushed to it.
In actual use, the inner end of the horizontal pin shaft 12 can also be inserted into the rotation forces part 20 pushed to it
It is interior, the jack inserted for horizontal pin shaft 12 is provided in the rotation forces part 20.In this way, the drilling rod 15-1 passes through with drilling pipe 6
Multiple rotation forces parts 20 and multiple power transmission parts 19 are fastenedly connected and are integrated.
In actual use, when needing the rotation forces mechanism to be in promotion state, detachably connected by described
Fitting makes drilling rod 15-1 be connect with pile cover drill bit 2, and drilling pipe 6 is installed on the outsides drilling rod 15-1 or drilling pipe 6 and drilling rod at this time
15-1, which is fastenedly connected, to be integrated.When disconnecting the connection between drilling rod 15-1 and pile cover drill bit 2, described be detachably connected need to be only removed
Part.
Since horizontal pin shaft 12 of the power transmission parts 19 by vertical block 11 and on vertical block 11 forms, thus
Power transmission parts 19 are a dismountable transmission parts, and by horizontal pin shaft 12 after being extracted in vertical block 11, then power transmits
Part 19 just no longer plays power transmission effect, and practical operation is easy, and occupation mode is flexible.
In the present embodiment, the rotation forces part 20 is the fixed block being weldingly fixed on the screw thread blade.
Also, the fixed block is cylindrical bloom.In actual use, the fixed block may be other shapes of piece
Body, such as cube block.
In the present embodiment, the vertical block 11 is fixed on the upper limit part, and multiple vertical blocks 11 are along institute
The edge line for stating upper limit part is laid.
Thus, it is practical fixed easy, and vertical block 11 will not cause the drilling process of drilling rod 15-1 and drilling pipe 6 to appoint
What is influenced, while will not be had any impact to the guiding role of drill bit leading truck 1.
In the present embodiment, multiple power transmission parts 19 are laid in same level.
In the present embodiment, the quantity of the power transmission parts 19 and rotation forces part 20 is two, two rotations
Impeller 20 is each attached in the screw thread blade on a blade, and the 20 fixed blade of institute of the rotation forces part is fixed leaf
Piece, one of them described rotation forces part 20 is located at the top of the fixed blade and another described rotation forces part 20 is located at
The bottom of the fixed blade, after inserting horizontal pin shaft 12 on two vertical blocks 11 in this way, two levels
Axis pin 12 is inserted to the screw thread blade, and two horizontal pin shafts 12 are located at the fixed blade or more two
Side, horizontal pin shaft 12 described in two such, which to power transmission parts 19 push, makes pile cover drill bit 2 be synchronized with drilling rod 15-1
While rotation, two horizontal pin shafts 12 form the axial limiting mechanism that axial limiting is carried out to drilling rod 15-1, in this way
Can pile cover drill bit 2 and drilling rod 15-1 is easy, be quickly assembled into one, while can ensure that pile cover drill bit 2 is persistently drilled down into, really
Drilling process is protected effectively, reliably to carry out.
Meanwhile two horizontal pin shafts 12 are applied in combination with vertical block 11, are also formed and carry out axis to drill bit leading truck 1
It to the axial limiting mechanism of limit, prevents drill bit leading truck 1 from moving up and down during the work time, plays the role of fixed；Also,
By two horizontal pin shafts 12 can also make drill bit leading truck 1 and pile cover drill bit 2 synchronize move up and down.
In the present embodiment, the bottom flush of 6 bottom of the drilling pipe and drilling rod 15-1.
Pile cover forming hole 21 is carried out in drilling process, pile cover drill bit 2 is synchronous with drilling rod 15-1 from top to bottom to be crept into,
Rate of penetration can effectively be increased, while can effectively increase the stationarity of drilling.
When actual processing, according to the height of drilling pipe 6, installation position of the rotation forces part 20 on drilling rod 15-1 is carried out true
It is fixed so that pile cover constructing device described in step 2 is after installation is complete, the bottom flush of 6 bottom of drilling pipe and drilling rod 15-1.
In the present embodiment, the height of the spiral drill 7 is identical as the height of pile cover 17.
In the present embodiment, the clamping part 3 is symmetrically installed on the guide rail including two and in same level
Claw, the claw in horizontal layout and its front side be provided with the card holding trough 5 being installed on the guide rail, the claw rear end
It is fixed on the connector.
In the present embodiment, the clamping part 3 is circular ring shape and a diameter of Φ 100mm, the internal diameter of the retaining collar 4 are
Φ 450mm and its outer diameter are Φ 560mm.
In actual use, the retaining collar 4 is installed on 6 top of drilling pipe, and the drill bit leading truck 1 can not only carry out up and down
It is mobile, while drill bit leading truck 1 can also horizontally rotate around the guide rail, practical operation is very easy, using flexible, positioning
Simplicity can meet the drilling demand of piles with different position stake holes.
In actual use, the rapidoprint of drilling pipe 6 and spiral drill 7 is Q235 in the pile cover drill bit 2, this rigid material
Material can make with the increase of the thickness of material its yield value reduce, due to carbon containing moderate, comprehensive performance is preferable, intensity,
The performances such as plasticity and welding can preferably be coordinated when in use, and purposes is most extensive.
When actual processing, the internal diameter of the drilling pipe 6 carries out really according to the outer diameter (i.e. the outer diameter of screw thread blade) of drilling rod 15-1
Fixed, the internal diameter of drilling pipe 6 is more than the outer diameter of drilling rod 15-1；The diameter of the spiral drill 7 according to the aperture of pile cover forming hole 21 into
Row determines that the diameter of the spiral drill 7 is consistent with the aperture of pile cover forming hole 21；Outer diameter (the i.e. screw thread of the drilling rod 15-1
The outer diameter of blade) it is determined according to the diameter of pile body forming hole 22, (i.e. screw thread blade is outer for the outer diameter of the drilling rod 15-1
Diameter) it is consistent with the diameter of pile body forming hole 22.
In the present embodiment, the height of the drilling pipe 6 is 2000mm, and the height of drill bit leading truck 1 (i.e. retaining collar 4) is
235mm。
When actual processing, the height of drilling pipe 6 and drill bit leading truck 1 (i.e. retaining collar 4) can be carried out according to specific needs
Corresponding adjustment.Big 20mm~the 50mm of outer diameter (i.e. the outer diameter of screw thread blade) of the internal diameter of the drilling pipe 6 than drilling rod 15-1.
In the present embodiment, the outer diameter (i.e. the outer diameter of screw thread blade) of a diameter of Φ 200mm of the core bar, drilling rod 15-1 are
The outer diameter of Φ 400mm, the drilling pipe 6 are Φ 445mm and its wall thickness is 5mm~10mm, a diameter of Φ 800mm of spiral drill 7.
It, can according to specific needs, to outer diameter (the i.e. screw thread blade of the diameter of the core bar, drilling rod 15-1 when actual processing
Outer diameter), the outer diameter of drilling pipe 6 and wall thickness and the diameter of spiral drill 7 adjust accordingly respectively.
In the present embodiment, a diameter of Φ 30mm of the horizontal pin shaft 12.
When actual processing, the diameter of horizontal pin shaft 12 can be adjusted accordingly according to specific needs.
In the present embodiment, the blade of the spiral drill 7 is process by the steel plate that thickness is 15mm, and vertical block 11 is
Thickness is the steel plate of 30mm., can according to specific needs when actual processing, the blade thickness to spiral drill 7 and vertical block 11
Thickness adjust accordingly respectively.
In the present embodiment, the left and right sides of the retaining collar 4 is symmetrically laid with lifting lug 13, and the middle part of the lifting lug 13 is opened
Equipped with the lifting hole(eyelet) 14 passed through for lifting rope.
To further determine that connection reliability, it is ensured that the pile cover constructing device and drilling rod 15-1 can Synchronous lifting or under
Drop, in actual use, the lifting device (i.e. power head 15-3) of the lifting lug 13 and drilling rod 15-1 are (i.e. described to hang by steel wire rope
Rope) connection, it is cooperated by vertical block 11, horizontal pin shaft 12 and lifting lug 13, had both limited drill bit leading truck 1 in drilling rod
Relative movement in 15-1 axial directions, while drill bit leading truck 1 can also be driven to move up and down by power head 15-3, and phase
Pile cover drill bit 2 should be driven to synchronize to move up and down.Thus, pile cover drill bit 2 and drill bit leading truck 1 move up and down process and upper
Lower moving direction is controlled by power head 15-3, realizes simplicity, and without adding additional driving equipment, action can
It leans on.
In the present embodiment, the connector includes the first connecting plate 9 and connects with the second of 9 perpendicular laying of the first connecting plate
Fishplate bar 10, the clamping part 3 are fastenedly connected with the first connecting plate 9, the second connecting plate 10 and the perpendicular laying of retaining collar 4 and its
It in horizontal layout, is fastenedly connected by the second connecting plate 10 between the first connecting plate 9 and retaining collar 4, the clamping part 3 and
It is fastenedly connected by the first connecting plate 9 between two connecting plates 10, clamps part 3 and be bolted on the first connecting plate 9.
In actual use, first connecting plate 9 is fixedly connected with the second connecting plate 10 by reinforcing plate.
In the present embodiment, the middle part of the drilling pipe 6 offers soil outlet 8, and the soil outlet 8 is located at 7 top of spiral drill.
Also, the soil outlet 8 is between retaining collar 4 and spiral drill 7.
In the present embodiment, the quantity of the soil outlet 8 is two, and two soil outlets 8 include being laid in 6 middle part of drilling pipe
The height of the preceding soil outlet of front side and the rear soil outlet on rear side of 6 middle part of drilling pipe, the preceding soil outlet is rear unearthed higher than described
The height of mouth, i.e., the described preceding soil outlet and the asymmetric laying of the rear soil outlet, in order to being unearthed for 2 front and rear sides of pile cover drill bit
Situation is independent of each other.
In actual use, the preceding soil outlet and it is described after soil outlet be square orifice and the two size it is identical.This reality
It applies in example, the height of the soil outlet 8 is 250mm and its width is 200mm, can according to specific needs, to going out when actual processing
The shape and size of native mouth 8 adjust accordingly.
A kind of CFG pile foundations pile cover as shown in FIG. 6 and pile body integral construction method, include the following steps：
Step 1: drilling machine is in place：Long spire stake machine 15 is moved to constructed CFG of construction area, and makes drilling rod 15-
1 right over constructed CFG of stake position；
Step 2: pile cover constructing device and power transmission parts installation：The mobile long spire stake machine 15 in place in step 1
The upper installation pile cover constructing device, while multiple power transmission parts 19 are installed at the top of the drilling pipe 6, and by drilling rod
15-1 is moved to each rotation forces part 20 and is respectively positioned on pushed 19 rear side of power transmission parts straight down, at this time drilling rod
15-1 forms pile cover drilling and forming hole device with the pile cover constructing device；
Step 3: pile cover forming hole is crept into：It is from top to bottom crept into, is obtained using the device of pile cover drilling and forming hole described in step 2
The pile cover forming hole 21 for obtaining construction molding, refers to Fig. 7；
The pile cover drilling and forming hole device from top to bottom in drilling process, is crept into from top to bottom using drilling rod 15-1；It is described
Drilling rod 15-1 in drilling process, is crept into from top to bottom by the rotation forces mechanism urges drilling pipe 6 synchronization from top to bottom；
Step 4: pile body forming hole is crept into：Multiple power transmission parts 19 in step 2 are removed, and use drilling rod
15-1 continuation is crept into from top to bottom, is obtained the pile body forming hole 22 of construction molding, is referred to Fig. 8；
Step 5: carrying brill and pile concrete synchronization pouring construction：It is lifted up drilling rod 15-1, until the bottoms drilling rod 15-1
With 21 bottom flush of pile cover forming hole；It is using grouting equipment and same from the bottom to top by drilling rod 15-1 during being lifted up
The concrete perfusion into pile body forming hole 22 is walked, the filling concrete work progress of pile body 16 is completed, refers to Fig. 9；
It is connected by grouting pipe between the grouting equipment and the upper ends drilling rod 15-1；
Step 6: carrying brill and pile cover concrete synchronous pouring construction：It is lifted up drilling rod 15-1, until drilling rod 15-1 is from stake
It is proposed in cap forming hole 21；During being lifted up, using the grouting equipment and by drilling rod 15-1 from the bottom to top synchronize to
Concrete perfusion in pile cover forming hole 21 completes the filling concrete work progress of pile cover 17, refers to Figure 10.Wait for step 5 and step
In rapid six after institute's concrete perfusion final set, the CFG stakes of construction molding are obtained, Figure 10 is referred to.
In the present embodiment, in step 2 when multiple power transmission parts 19 are installed at the top of the drilling pipe 6, each
Horizontal pin shaft 12 is inserted on the vertical block 11, and makes inserted horizontal pin shaft 12 before a rotation forces part 20
Side；
When removing multiple power transmission parts 19 in step 4, by multiple horizontal pin shafts 12 from vertical gear
It is extracted on block 11；
Before carrying out carrying brill and pile cover concrete synchronous pouring construction in step 6, by the pile cover constructing device by down toward
On propose out of pile cover forming hole 21；Or carried out in step 6 during carrying brill and pile cover concrete synchronous pouring construction, it will
The pile cover constructing device is synchronous with drilling rod 15-1 to be promoted from the bottom to top.
It is lifted up in the present embodiment, in step 5 before drilling rod 15-1, first passes through the grouting equipment by drilling rod 15-1
Inside fill concrete.
When being lifted up drilling rod 15-1 in step 5, drilling rod 15-1 is at the uniform velocity lifted up and promoted speed be 2m/min~
3m/min；When being lifted up drilling rod 15-1 in step 6, drilling rod 15-1 is at the uniform velocity lifted up and promotes speed less than step 5
The promotion speed of middle drilling rod 15-1.
After long spire stake machine 15 is moved to constructed CFG of construction area in step 1, it is lifted up drilling rod 15-1,
And make the vertical spacing between the bottoms drilling rod 15-1 and ground more than the height of drilling pipe 6.
Lifting lug 13 there are two being symmetrical arranged in the present embodiment, on the outside of retaining collar 4 described in the pile cover constructing device, institute
The middle part for stating lifting lug 13 offers the lifting hole(eyelet) 14 passed through for lifting rope 23, and 23 bottom banding fixed of the lifting rope is on lifting lug 13；
After installing the pile cover constructing device on long spire stake machine 15 in step 2, by the top of two lifting ropes 23
It is each attached on the power head 15-3 of long spire stake machine 15, so that the pile cover constructing device is passed through two lifting ropes 23 and be lifted on
Below power head 15-3；
In step 3 before pile cover forming hole drilling, by pile cover constructing device decentralization synchronous with drilling rod 15-1, until
6 bottom of drilling pipe is supported on ground.
By when multiple power transmission parts 19 are removed in step 2 in step 4, by the top of two lifting ropes 23
It is separated from power head 15-3, to disconnect the connection between the pile cover constructing device and power head 15-3；
It is lifted up in step 6 before drilling rod 15-1, the top of two lifting ropes 23 is each attached to power head 15-3
On, then promoted from the bottom to top by the pile cover constructing device is synchronous with drilling rod 15-1.
As shown in the above, the present invention is transformed conventional use of long spire stake machine 15, specifically according to pile cover
The size of forming hole 21, and outer diameter in conjunction with drilling rod 15-1 and the spacing between drilling rod 15-1 and the guide rail, to the stake
Pile cover drill bit 2 and drill bit leading truck 1 in cap constructing device are processed.The pile cover constructing device machined is pacified again
On long spire stake machine 15, when actual installation, it will be first lifted up on drilling rod 15-1 until the bottoms drilling rod 15-1 to ground
Vertical distance is more than the height of drilling pipe 6, then using hanging device by the pile cover constructing device lift to drilling rod 15-1 just under
Side, and drill bit leading truck 1 is installed on by clamping part 3 on the guide rail (also referred to as sliding rail, the i.e. round steel pipe of pile frame both sides), and
It is matched with power transmission parts 19 by rotation forces part 20 and pile cover drill bit is temporarily installed on drilling rod 15-1, while by hanging
Drill bit leading truck 1 is connect by rope with power head 15-3.
It, can be same while long spire stake machine 15 is crept into after being inserted into horizontal pin 12 in vertical block 11 when practice of construction
Step drives pile cover drill bit 2 from top to bottom to be crept into；After the bottom designed elevation for being drilled into pile cover 17, horizontal pin 12 is extracted,
Long spire stake machine 15 continues to creep into the bottom designed elevation of pile body 16；Later, control long spire stake machine 15 (i.e. drilling rod 15-1)
It reversely rotates, and drilling rod 15-1 is at the uniform velocity lifted up, drilling rod 15-1 synchronizes concrete perfusion extremely during being at the uniform velocity lifted up
The bottom designed elevation of pile cover 17；Then, since stake diameter increases, slow down the promotion speed of drilling rod 15-1, by drilling rod 15-1 and institute
It states pile cover constructing device and synchronizes and at the uniform velocity promoted upwards, complete pile cover and pile body one-off construction process；Finally, it removes and bores in time
Slag, cleaning equipment.
For simple installation, when being installed to the pile cover constructing device, it will first clamp part 3 and dismantled from the connector
Get off, then the guide rail is sling and be aligned by part 3 is clamped using hanging device (such as hoist engine), is clamped until part 3 will be clamped
On the guide rail, the installation process for clamping part 3 is completed.Later, it will be removed and blocked using hanging apparatus (such as truck crane or digging machine)
The pile cover constructing device of piece installing 3 is lifted to drilling rod 15-1, and the underface for making drilling pipe 6 be located at drilling rod 15-1；Then,
Drilling rod 15-1 is transferred or is promoted the pile cover constructing device for clamping part 3 is removed straight up, and drilling pipe 6 is made to be sleeved on brill
On bar 15-1, while the connector in the pile cover constructing device being fastenedly connected with advance mounted clamping part 3, it is complete
At the installation process of the pile cover constructing device.
It is simple installation, the semicircular rings make-up that the retaining collar 4 can also symmetrically be laid by two in the present embodiment
It forms.When actual installation, two semicircular rings are sleeved on 6 top of drilling pipe and just form retaining collar 4 after being fastenedly connected.
For the ease of pile cover drill bit 2 smoothly promoted and rotation, on pylon sliding rail (the i.e. described guide rail) with the fixing sleeve
Equal coating butter on the inner wall of ring 4, timely coating in work progress.
In order to avoid horizontal pin shaft 12 is fallen or is lost, horizontal pin shaft 12 is connected to the (tool of pile cover drill bit 2 with seizing wire
Body is drilling pipe 6) on, and can ensure that horizontal pin shaft 12 is easy to loading and unloading.In the present embodiment, the horizontal pin shaft 12 uses No. 45 steel.
Before progress drilling machine is in place in step 1, city's roads first are carried out to constructed CFG of stake position.It adopts the stake position of measurement
It is made marks with timber, bamboo chip stake or point lime.After drilling machine is in place, the vertical of adjustment drilling rod 15-1 is corrected in drilling machine bilateral sash weight ball
Degree makes the scale of controlling depth, including the control of 17 bottom of pile cover to accurately control constructed CFG of depth on pile frame
System mark.
When carrying out pile cover constructing device and power transmission parts installation in the present embodiment, in step 2, horizontal pin shaft is not inserted
12。
When pile cover forming hole is crept into step 3, when 6 bottom of drilling pipe contacts ground, after inserting horizontal pin shaft 12, start
Power head 15-3, long spire stake machine 15 is positive slowly to rotate and drives the 2 rotary drilling casting of pile cover drill bit, reduces drilling rod 15-1 and shakes
It is dynamic, prevent inclined hole.
When the bottom designed elevation to be drilled for proceeding to pile cover 17, power head 15-3 is closed, extracts horizontal pin shaft 12；And then
Power head 15-3 continues to creep into casting to the bottom designed elevation designed elevation of pile body 16.In drilling process, determined according to test pile
Current value determine holding force value, when drilling process shakes excessive, drilling depth should be slowed down.
The concrete being perfused in step 5 neutralization procedure six uses blending station central mix, concrete delivery truck to be transported to
Construction site, haulage vehicle configure at a distance from blending station with pile foundation construction progress according to building site.Per the tray concrete mixing time,
Not less than 120s；The slump is controlled in 16s~20s.
When carrying out filling concrete in step 5 neutralization procedure six, mixed and stirred using the interior pump pressure method perfusion of pipe (the i.e. described core bar)
Expect (i.e. concrete), when drilling rod core pipe (the i.e. described core bar) is 2m/ full of promotion drilling rod 15-1, promotion speed is started when mixing and stirring material
Min~3m/min forbids first to be promoted stock after drilling rod 15-1.Promotion drilling rod 15-1 promotes the bottom designed elevation close to pile cover 17
When, slow down promotion speed, carries out pile cover filling concrete.
After the completion of construction, the construction location that long spire stake machine 15 is displaced to next pile is constructed, due to live people
The influence of member, pipeline and upper pile casting check stake position before lower pile construction.
Boring mud is cleared up：After the concrete initial set of pile body 16, boring mud causes broken pile, situ configuration one when clearing up
Boring mud cleaning is transported to spoil ground in time and stacked by digging machine and 1~2 muck haulage vehicle.
Pile cover is cleared up to be handled with stake week：After the concrete of the pile body 16 reaches 28d ages, manual cleaning pile cover top surface pine
It dissipates soil etc. to clean out, is cleaned out the loose concrete in stake top face using electric hammer.With Miniature digging machine to construction site into table
Smooth, digging machine crawler belt is walked along pile center, forbids to touch pile body when smooth.After levelling of the land using small-sized tamping machine to soil around pile into
Row compacting is smooth.
It when temperature reaches the condition of winter construction, should be handled by winter construction, take measures to avoid concrete before initial set
Freezed, boring mud should stay part boring mud to be covered in pile foundation top surface and carry out covering and heat insulating when clearing up.
When practice of construction, when the drilling rod 15-1 is drilled into the bottom designed elevation or supporting course of pile body 16, start to drilling rod
Core pipe (the i.e. described core bar) interior pump concrete, drilling rod core pipe (the i.e. described core bar) interior air are discharged from air bleeding valve, drilling rod core pipe
And delivery pipe full of concrete and it is continuous after, carry brills (promoting drilling rod 15-1) in time, guarantee concrete fills under a certain pressure
Form stake.To avoid pile body from forming cavity due to drilling rod core inner air tube can not be discharged, whether running check air bleeding valve when construction
It blocks, if occurring to block to take timely measure is cleaned.Thus, the upper ends the drilling rod 15-1 are equipped with exhaust pipe, the row
Air bleeding valve is housed on tracheae.
The above is only presently preferred embodiments of the present invention, is not imposed any restrictions to the present invention, every according to the present invention
Technical spirit changes any simple modification, change and equivalent structure made by above example, still falls within skill of the present invention
In the protection domain of art scheme.
Claims (10)
1. a kind of CFG pile foundations pile cover and pile body integrative construction device, it is characterised in that：Including being applied to constructed CFG
The long spire stake machine (15) of work and the pile cover constructing device on long spire stake machine (15), the pile cover constructing device include
The drill bit that is carried out by the pile cover drill bit (2) of drilling construction and is oriented to pile cover drill bit (2) for constructed CFG of pile cover (17)
Leading truck (1), the drill bit leading truck (1) are mounted on pile cover drill bit (2), and the pile cover drill bit (2) is in vertically to laying, institute
It is in horizontal layout to state drill bit leading truck (1)；Constructed CFG includes pile body (16) and the coaxial stake for being laid in pile body (16) top
Cap (17), the pile body (16) and pile cover (17) is connected as one and the cross section of the two is circle, the pile cover (17) and
Pile body (16) is in vertically to laying；The diameter of the pile body (16) all same from the bottom to top；
The pile cover drill bit (2) includes drilling pipe (6) and is along the circumferential direction from top to bottom laid on drilling pipe (6) lower outside wall
Spiral drill (7), the drilling pipe (6) are coaxial package from the bottom to top on the drilling rod (15-1) of long spire stake machine (15) and by boring
Bar (15-1) drives the cylindrical steel sleeve for synchronizing rotation, is provided on the drilling rod (15-1) and pushes drilling pipe (6) synchronous
The rotation forces mechanism rotated, the rotation forces mechanism and the vertical spacing of the bottom end drilling rod (15-1) are not more than drilling pipe
(6) height；
The drill bit leading truck (1) include coaxial package in drilling pipe (6) retaining collar (4) and retaining collar (4) are installed
Lantern ring fixing piece on the pile frame of long spire stake machine (15), the retaining collar (4) and the lantern ring fixing piece are in level
It lays, one end of the lantern ring fixing piece is connect with retaining collar (4) and its other end is connect with the pile frame.
2. a kind of CFG pile foundations pile cover described in accordance with the claim 1 and pile body integrative construction device, it is characterised in that：It is described
All same, the diameter of pile body (16) are less than the diameter of pile cover (17) to the diameter of pile cover (17) from the bottom to top；The spiral drill (7)
For screw blade and its outer diameter all same from the bottom to top, the outer diameter of the screw blade is identical as the diameter of pile cover (17), described
The width of screw blade all same from the bottom to top.
3. a kind of CFG pile foundations pile cover described in accordance with the claim 1 and pile body integrative construction device, it is characterised in that：It is described
The diameter of pile cover (17) gradually increases from the bottom to top, and the base diameter of the pile cover (17) is identical as the diameter of pile body (16)；Institute
It is that screw blade and its outer diameter gradually increase from the bottom to top to state spiral drill (7), the bottom outer diameter and pile body of the screw blade
(16) diameter is identical, and the width of the screw blade gradually increases from the bottom to top.
4. according to a kind of CFG pile foundations pile cover as claimed in claim 1,2 or 3 and pile body integrative construction device, it is characterised in that：
The drill bit leading truck (1) is that can vertically be moved up and down along the pile frame and drive pile cover drill bit (2) is synchronous to carry out up and down
Mobile mobile leading truck, the retaining collar (4) are set in the upper outside of pile cover drill bit (2), the spiral drill (7)
Below retaining collar (4)；It is provided with the set limited to retaining collar (4) on the upper outside wall of the drilling pipe (6)
Ring locating part, the lantern ring locating part include upper limit part and the lower limit part immediately below the upper limit part, it is described on
Locating part and the lower limit part are both secured in horizontal layout and the two on the upper outside wall of drilling pipe (6)；The fixation
Lantern ring (4) is the cylindrical lantern ring being installed between the upper limit part and the lower limit part.
5. a kind of CFG pile foundations pile cover and pile body integrative construction device according to claim 4, it is characterised in that：It is described
Long spire stake machine (15) includes the pile frame and drilling system, the pile frame include column (15-2) and drive column (15-2) into
The mobile mobile mechanism of row；The drilling system includes drilling tool and the power head driven to the drilling tool (15-3), described
The guide rail moved up and down for power head (15-3) is provided on column；
The lantern ring fixing piece include be installed on the guide rail and can along the clamping part (3) that the guide rail moves up and down,
The retaining collar (4) and clamping part (3) are attached fixation, the clamping part (3) and the connector cloth by connector
In same level.
6. according to a kind of CFG pile foundations pile cover as claimed in claim 1,2 or 3 and pile body integrative construction device, it is characterised in that：
The screw thread blade that the drilling rod (15-1) includes core bar and is laid in from the bottom to top on the outside of the core bar, the core bar are cylinder
Bar, the spiral drill (7) are screw thread drill, and the screw thread blade is identical with the hand of spiral of spiral drill (7)；
The top of the drilling pipe (6) is along the circumferential direction laid with multiple power transmission parts (19), and the rotation forces mechanism includes
It is multiple to be laid on the screw thread blade and to the rotation forces part (20) that power transmission parts (19) are pushed, it is each described dynamic
Power transmission parts (19) are pushed by a rotation forces part (20), and each rotation forces part (20) is respectively positioned on institute
On rear side of the power transmission parts (19) of promotion.
7. a kind of CFG pile foundations pile cover and pile body integrative construction device according to claim 6, it is characterised in that：It is multiple
The power transmission parts (19) are laid in same level；Each power transmission parts (19) are fixed on including one
The vertical block (11) of drilling pipe (6) top outer and the horizontal pin shaft (12) on vertical block (11), the vertical gear
The through-hole inserted for horizontal pin shaft (12) is provided on block (11)；The structure snd size all same of multiple horizontal pin shafts (12),
Multiple horizontal pin shafts (12) are along the circumferential direction laid and center axis intersects with the central axis of drilling pipe (6)；Each
Level interval between horizontal pin shaft (12) inner end and drilling pipe (6) central axis is all higher thanWherein d is the core bar
Outer diameter.
8. a kind of method carrying out CFG pile foundations pile cover and pile body integrated construction using device as claimed in claim 6, feature
It is, this approach includes the following steps：
Step 1: drilling machine is in place：Long spire stake machine (15) is moved to constructed CFG of construction area, and makes drilling rod (15-
1) it is located at right over constructed CFG of stake position；
Step 2: pile cover constructing device and power transmission parts installation：In step 1 on mobile long spire stake machine (15) in place
The pile cover constructing device is installed, while multiple power transmission parts (19) being installed at the top of the drilling pipe (6), and will be bored
Bar (15-1) is moved to each rotation forces part (20) and is respectively positioned on rear side of pushed power transmission parts (19) straight down,
Drilling rod (15-1) forms pile cover drilling and forming hole device with the pile cover constructing device at this time；
Step 3: pile cover forming hole is crept into：It is from top to bottom crept into, is applied using the device of pile cover drilling and forming hole described in step 2
The molding pile cover forming hole (21) of work；
The pile cover drilling and forming hole device from top to bottom in drilling process, is crept into from top to bottom using drilling rod (15-1)；The brill
Bar (15-1) in drilling process, is crept into from top to bottom by the rotation forces mechanism urges drilling pipe (6) synchronization from top to bottom；
Step 4: pile body forming hole is crept into：Multiple power transmission parts (19) in step 2 are removed, and use drilling rod
(15-1) continuation is crept into from top to bottom, obtains the pile body forming hole (22) of construction molding；
Step 5: carrying brill and pile concrete synchronization pouring construction：It is lifted up drilling rod (15-1), until the bottom drilling rod (15-1)
With pile cover forming hole (21) bottom flush；During being lifted up, using grouting equipment and by drilling rod (15-1) by down toward
Upper synchronization completes the filling concrete work progress of pile body (16) to pile body forming hole (22) interior concrete perfusion；
It is connect by grouting pipe between the grouting equipment and the upper end drilling rod (15-1)；
Step 6: carrying brill and pile cover concrete synchronous pouring construction：It is lifted up drilling rod (15-1), until drilling rod (15-1) is from stake
It is proposed in cap forming hole (21)；It is using the grouting equipment and same from the bottom to top by drilling rod (15-1) during being lifted up
It walks to pile cover forming hole (21) interior concrete perfusion, completes the filling concrete work progress of pile cover (17).
9. according to the method for claim 8, it is characterised in that：Multiple power transmission parts (19) are laid in step 2
In in same level；Each power transmission parts (19) include a vertical gear for being fixed on drilling pipe (6) top outer
Block (11) and the horizontal pin shaft (12) on the vertical block (11) are provided with for horizontal pin shaft on the vertical block (11)
(12) through-hole inserted；The structure snd size all same of multiple horizontal pin shafts (12), multiple horizontal pin shaft (12) edges
Circumferencial direction is laid and center axis intersects with the central axis of drilling pipe (6)；Each horizontal pin shaft (12) inner end with
Level interval between drilling pipe (6) central axis is all higher thanWherein d is the outer diameter of the core bar；
The drilling rod bottom (15-1) and drilling pipe (6) bottom flush in the pile cover drilling and forming hole device；
In step 2 when multiple power transmission parts (19) are installed at the top of the drilling pipe (6), in each vertical gear
Horizontal pin shaft (12) is inserted on block (11), and makes inserted horizontal pin shaft (12) before a rotation forces part (20)
Side；
When removing multiple power transmission parts (19) in step 4, by multiple horizontal pin shafts (12) from vertical gear
Block is extracted on (11)；
Before carrying out carrying brill and pile cover concrete synchronous pouring construction in step 6, by the pile cover constructing device from the bottom to top from
It is proposed in pile cover forming hole (21)；Or carried out in step 6 during carrying brill and pile cover concrete synchronous pouring construction, by institute
State that pile cover constructing device is synchronous with drilling rod (15-1) to be promoted from the bottom to top.
10. according to the method for claim 8, it is characterised in that：It is lifted up in step 5 before drilling rod (15-1), first leads to
Concrete will be filled in drilling rod (15-1) by crossing the grouting equipment；
When being lifted up drilling rod (15-1) in step 5, drilling rod (15-1) is at the uniform velocity lifted up and promoted speed be 2m/min~
3m/min；When being lifted up drilling rod (15-1) in step 6, drilling rod (15-1) is at the uniform velocity lifted up and promotes speed less than step
The promotion speed of drilling rod (15-1) in rapid five；
After long spire stake machine (15) is moved to constructed CFG of construction area in step 1, it is lifted up drilling rod (15-1),
And make height of vertical spacing of the drilling rod (15-1) between bottom and ground more than drilling pipe (6)；
Lifting lug (13) there are two being symmetrical arranged on the outside of retaining collar (4) described in the pile cover constructing device, the lifting lug (13)
Middle part offer the lifting hole(eyelet) (14) passed through for lifting rope (23), lifting rope (23) the bottom banding fixed is on lifting lug (13)；
After installing the pile cover constructing device on long spire stake machine (15) in step 2, by the top of two lifting ropes (23)
It is each attached on the power head (15-3) of long spire stake machine (15), the pile cover constructing device is made to pass through two lifting ropes (23)
It is lifted below power head (15-3)；
In step 3 before pile cover forming hole drilling, by pile cover constructing device decentralization synchronous with drilling rod (15-1), until boring
Cylinder (6) bottom is supported on ground；
By when multiple power transmission parts (19) are removed in step 2 in step 4, by the top of two lifting ropes (23)
It is separated from power head (15-3), to disconnect the connection between the pile cover constructing device and power head (15-3)；
It is lifted up in step 6 before drilling rod (15-1), the top of two lifting ropes (23) is each attached to power head (15-
3) it on, then is promoted from the bottom to top by the pile cover constructing device is synchronous with drilling rod (15-1).
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| CN201810946185.3A CN108755729B (en) | 2018-08-20 | 2018-08-20 | CFG pile foundation pile cap and pile body integrated construction device and method |
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|---|---|---|---|
| CN201810946185.3A CN108755729B (en) | 2018-08-20 | 2018-08-20 | CFG pile foundation pile cap and pile body integrated construction device and method |
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| CN108755729B CN108755729B (en) | 2023-07-04 |
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| CN110939395A (en) * | 2019-12-19 | 2020-03-31 | 中化地质矿山总局河北地质勘查院 | Construction equipment and method for variable-diameter plain concrete pile |
| CN111042738A (en) * | 2019-12-25 | 2020-04-21 | 长安大学 | Rotary cutting and expanding support disc pile machine and construction method of cutting and expanding support disc pile |
| CN112796312A (en) * | 2020-12-31 | 2021-05-14 | 郑州大学建设工程质量研究检测有限公司 | Spiral drilling pouring pile forming structure for CFG pile |
| CN114908741A (en) * | 2022-05-13 | 2022-08-16 | 中铁第五勘察设计院集团有限公司 | Construction device and slope soft soil foundation treatment method |
| CN116971719A (en) * | 2023-07-31 | 2023-10-31 | 海南卓典高科技开发有限公司 | Gate-type pile machine and cast-in-place pile construction method |
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Address after: 215151 No. 10, Datong Road, high tech Zone, Suzhou, Jiangsu Patentee after: China Railway Construction Urban Construction Transportation Development Co.,Ltd. Country or region after: China Address before: Engineering technology management center of the first Engineering Co., Ltd. of China Railway 20th bureau group, No.10 Datong Road, high tech Zone, Suzhou City, Jiangsu Province Patentee before: NO.1 ENGINEERING CORPORATION LIMITED OF CR20G Country or region before: China |