CN110374500A - A kind of drilling pile construction method in groups - Google Patents
A kind of drilling pile construction method in groups Download PDFInfo
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- CN110374500A CN110374500A CN201910638955.2A CN201910638955A CN110374500A CN 110374500 A CN110374500 A CN 110374500A CN 201910638955 A CN201910638955 A CN 201910638955A CN 110374500 A CN110374500 A CN 110374500A
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- drilling rod
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- 238000005553 drilling Methods 0.000 title claims abstract description 374
- 238000010276 construction Methods 0.000 title claims abstract description 57
- 238000003756 stirring Methods 0.000 claims abstract description 45
- 238000000429 assembly Methods 0.000 claims abstract description 31
- 230000000712 assembly Effects 0.000 claims abstract description 31
- 238000005520 cutting process Methods 0.000 claims abstract description 27
- 238000003032 molecular docking Methods 0.000 claims abstract description 6
- 230000007246 mechanism Effects 0.000 claims description 41
- 239000002689 soil Substances 0.000 claims description 23
- 239000002002 slurry Substances 0.000 claims description 19
- 239000004568 cement Substances 0.000 claims description 15
- 238000009434 installation Methods 0.000 claims description 15
- 238000007569 slipcasting Methods 0.000 claims description 14
- 238000002513 implantation Methods 0.000 claims description 8
- 238000005266 casting Methods 0.000 claims description 6
- 238000013461 design Methods 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 claims description 5
- 230000001737 promoting effect Effects 0.000 claims description 5
- 238000000605 extraction Methods 0.000 claims description 4
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000002893 slag Substances 0.000 claims description 3
- 238000007711 solidification Methods 0.000 claims description 3
- 230000008023 solidification Effects 0.000 claims description 3
- 238000012360 testing method Methods 0.000 claims description 3
- 230000008859 change Effects 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 239000004744 fabric Substances 0.000 claims 1
- 238000000034 method Methods 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 7
- 241001074085 Scophthalmus aquosus Species 0.000 description 4
- 238000011161 development Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000011065 in-situ storage Methods 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 238000005056 compaction Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000009740 moulding (composite fabrication) Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
-
- 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/22—Rods or pipes with helical structure
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/08—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods
- E21B19/084—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods with flexible drawing means, e.g. cables
-
- 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
- E21B3/00—Rotary drilling
- E21B3/02—Surface drives for rotary drilling
-
- 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
- E21B44/00—Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
-
- 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
- E21B7/02—Drilling rigs characterised by means for land transport with their own drive, e.g. skid mounting or wheel mounting
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
A kind of drilling pile construction method in groups, comprising the following steps: 1) prepare before construction；2) two groups of power head assemblies are installed；3) first group of power head assembly and its drilling rod, auger stem and drilling tool drilling cutting；4) second group of power head assembly and its drilling rod, auger stem and drilling tool drilling cutting；5) second group of power head assembly and its more piece drilling rod, auger stem and drilling tool whitewashing and stirring operation；6) drilling rod, drilling tool lifting disassembly；7) prefabricated pile is implanted into.The present invention can make be installed on the column long guideway of stride pile frame two groups of power head assemblies successively drilling, stirring and ream operation, improve the surface finish of hole wall, reach the Dock With Precision Position between the drilling rod that two groups of power head assemblies are fixedly mounted with by the traversing fine tuning of stride pile frame, it avoids between drilling rod, drilling rod and frequently docking and dismantling between drilling tool, reduce operator's operation intensity, drilling pile operating efficiency is improved, is effectively ensured and plants pile driving construction quality, equipment purchase cost is greatly lowered.
Description
Technical field
The drilling pile in groups that the present invention relates to a kind of by the way that prefabricated pile to be implanted into stratum after drilling pore-forming, slip casting and stirring
Construction method.
Background technique
During the continuous development of urban construction, land resource is fewer and fewer, and building construction develops to high level, therefore,
Requirement of the executive information systems to bearing capacity of pile foundation is higher and higher, also increasingly to the anti-settling deformation requirements of building
Height, buildings or structures require resistance to plucking and horizontal force resistant higher and higher.In order to meet bearing capacity and control deformation requirements, existing skill
Art often uses profound pile foundation, and paddle type mill or static pressure type tube pile construction tend not to meet the performances such as resistance to plucking and horizontal force resistant
It is required that many high-rise, super high-rise buildings and roadbed etc. have the basis of dynamic load requirement to use cast-in-situ bored pile (flush type) substantially,
But cast-in-situ bored pile cost height, unstable quality, single pile construction time are long, and mud emission pollutes environment, does not meet environmentally friendly reason
It reads.
As country carries forward vigorously building industrialization and green construction, construction enterprises are put forward higher requirements.It is all kinds of new
Build commercial building, civil buildings, industrial premises will gradually use assembled architecture, improve assembled building ratio progress.
Therefore, the quiet brill of a kind of integrated drilling, deep-layer stirring, expansion head and prefabricated various pile foundation technologies is taken root in pile construction technology and is obtained rapidly
It promotes and development, the construction technology has the characteristics of prefabricated piling batch production, energy conservation and environmental protection and materials saving, under certain condition
Alternative cast-in-situ bored pile has the function of the non-Squeezing Soil Pile for passing through all kinds of rock-soil layers, major diameter and high-bearing capacity, mud is greatly reduced
Discharge amount is starched, it is water-saving, save land, protect environment；Single pile construction efficiency improves 4-5 times；Save social resources；The carrying of folk prescription concrete
Power improves 2~3 times, saves raw material, and resource is fully utilized.Quiet brill is taken root in pile construction technology and is drawn in pile foundation construction field
The neck new direction of green construction effectively solves Pile Driving Noise, pile hammer air pollution brought by construction of prefabricated piles and beats
Environmental nuisance caused by stake soil compaction influences；On the other hand, the construction of the cast-in-situ bored pile of urban area large bearing capacity can be replaced
Technique overcomes the mass defects such as undergauge, pile silted caused by gathering around hole often occurs in bored concrete pile and bottom hole sediment is excessive；Factory is pre-
Piling processed, quality is guaranteed, has prevented live waste of material；Good to rock-soil layer adaptability simultaneously, soil compaction effect influences small, mud
Discharge amount is greatly reduced, and solves the problems, such as that plasma discharge land used in city city is difficult, Economization on land.Be conducive to the application hair of prefabricated pile
Exhibition, complies with green pile foundation technology development, and further expansion prefabricated pile uses field.Therefore, quiet brill take root in a technology from technology and
Economic angle all has significant benefit, meets sustainable development idea, and promotion prospect is good.
General in the prior art to be installed on pile frame vertical post using uniaxial agitation driller, drilling rod and drilling tool are to incision earth boring auger
Hole, on one side drill, while fill the water or infuse bentonite mixed liquor, while arc retaining wall block can be modified preboring hole body on drilling rod
And retaining wall, until drilling rod reaches the supporting course near sites of design requirement.During the entire process of drilling and forming hole, due to being limited by
The bearing capacity of the stem height of mating pile frame, the structural shape of column guide rail and pile frame, cannot achieve drilling rod and the length of the bit
It is primary to complete to connect and be installed on pile frame vertical post, therefore, with the increase of drilling depth, only constantly added by operator
The length of stacks, and the adjunction of drilling rod generally requires tool joint dismounting hinge pin, power head is promoted, upper and lower drilling rod (drilling tool) is de-
Open, giant rinse up and down drilling rod (drilling tool) tongue joint, by crane hanging component drilling rod, lifting drilling rod under end connector with
Kelly bar is directed at the step such as locking with end connector on lifting drilling rod under tool joint of burying alignment locking, power head downlink, power head
Suddenly, drilling rod connecting growth process needs to spend the more construction time, influences the efficiency of entire drilling pore-forming；Reaching drilling depth
Afterwards, cement slurry is injected at stake end by drilling rod and drill bit inner cavity pipeline, is stirred repeatedly up and down to keep stake end cement slurry
Uniformly；When whole drilling rods and drill bit are lifted unearthed, equally, operator can only by manipulation hoist engine promoted power head according to
Pin shaft, the adjacent two sections drilling rod of completion or drilling tool are de- at the secondary tongue joint for lifting each section drilling rod, extracting upper and lower drilling rod (drilling tool)
It is extracted after opening.The step is repeated, the extraction of all drilling rods or drilling tool is carried out.Therefore, it is lower brill and pull out bore two stages be both needed to
It wants operator that the more time is spent to carry out stacks and tear drilling rod open, seriously affects and plant pile driving construction efficiency；Further, since pre-
Progress slip casting, stirring construction have certain time schedule requirement in drilled as holes, and excessive frequent drilling rod, drilling tool linker will shadows
The plant quality of pile of prefabricated pile is rung, and then reduces the technical performance of embedded pile.Therefore, it is necessary to develop a kind of can effectively improve to plant stake effect
Rate reduces the adjunction in work progress between drilling rod, between drilling rod and drilling tool and the plant pile driving construction equipment of demounting procedure.
Summary of the invention
It is a primary object of the present invention to overcome existing pile-grafting machine there are the shortcomings that, provide a kind of traversing by stride pile frame
Fine tuning reaches the Dock With Precision Position between the drilling rod that two groups of power head assembly lower ends being installed on the column guide rail of pile frame are fixedly mounted with, real
Existing two groups of power head assemblies drilling pile construction method in groups that successively drilling, slip casting, stirring and prefabricated pile are implanted into, avoids drilling rod
Between, frequently docking and dismantling between drilling rod and drilling tool, reduce the operation intensity of operator, improve the operation of drilling pile
Efficiency is further ensured that and plants pile driving construction quality, equipment purchase cost is greatly lowered.
To achieve the above objectives, solution of the present invention is:
A kind of drilling pile construction method in groups, comprising the following steps: 1) prepare before construction, a) clear up construction site, keep road
Face is smooth, no low latitude high-tension bus-bar, it is ensured that construction area safety；B) two directions in length and breadth are adjusted and determined using theodolite, are made
For the benchmark of the pile frame chassis walking displacement of stride pile frame；C) stride pile frame assembles, using wherein equipment by the two of walking mechanism
A transverse direction stride and two longitudinal strides are before the lifting along the horizontal and vertical direction that theodolite determines is arranged in and plants stake station respectively
Side, lifting body are set to the lower section on pile frame chassis, its front and back jacking cylinder and the upper end of left and right jacking cylinder are fixedly mounted with respectively
Below the front and rear part on pile frame chassis and below left and right part, the lower end of front and back jacking cylinder and left and right jacking cylinder is installed in respectively
The lateral stride of two of walking mechanism and two longitudinal strides, complete the installation on pile frame chassis；It is installed in the front on pile frame chassis
There are column, top pulleys frame and two hounds made of the column cylinder docking of two pairs of guide rails as more piece；Stride pile frame
Column is located at the front on pile frame chassis；Two hounds are symmetrically arranged in the left and right sides of column, and one end is respectively articulated with
On the support at the one section column cylinder back side of the centre of column, after the other end is respectively hinged at the left back and the right side on pile frame chassis
On the support of side；Two pairs of guide rails of column cylinder arrange its left and right sides along column cylinder vertical direction with V-type symmetric mode, mutually
Long guideway and right side long guideway on the left of a pair are formed in the left and right sides of column respectively after being connected；Top pulleys frame is installed in vertical
One section column cylinder upper end of top end, front end are equipped with two pulley blocks of V-type symmetrical arrangement；2) two groups are installed
The wirerope drawn on two groups of hoisting mechanisms on the pile frame chassis of stride pile frame a) is each passed through stride stake by power head assembly
The lifting tackle that every group of power head assembly is bypassed after two pulley blocks of the top pulleys frame of frame, it is total to connect appropriate two groups of power heads
At；B) two groups of power head assemblies are passed through into two pairs of long guideways that the back side guide block in its rack is placed in the column of stride pile frame respectively
On, two groups of hoisting mechanisms on the pile frame chassis of stride pile frame are manipulated respectively by two groups of power head assemblies along the two pairs long of column
Guide rail is promoted to different height, wherein being fixedly mounted with more piece tool after the hollow output shaft lower end installation terminal pad of first group of power head assembly
There are a drilling rod of stirring blade and cambered surface protecting block, auger stem and drilling tool with helical blade, in second group of power head assembly
The drilling rod that more piece has stirring blade and cambered surface protecting block is fixedly mounted with after the lower end installation terminal pad of empty output shaft；C) at two pairs of column
Bearing support is installed respectively below long guideway, each bearing support is installed in two pairs long respectively each by a pair of of guide plate of its rear end
On guide rail；D) manipulation column walking mechanism is finely adjusted along the transverse direction displacement for planting stake station, is guaranteed long on the left of one pair of them
The rotation center alignment of the first group of power head assembly and its drilling rod, auger stem and drilling tool installed on guide rail is planted in stake station
The heart；E) cable of two groups of power head assemblies and grouting pipeline are connect with steerable system and backstage pulp feeding system processed respectively,
In, Grouting Pipe is connected by the swivel joint of hollow output shaft upper end and the grouting pipeline of its inner cavity, idle running test is carried out,
Ensure compliance with construction requirement；3) first group of power head assembly and its drilling rod, auger stem and drilling tool drilling cutting, manipulation and control system
The vertical machine of system, first group of power head assembly of starting rotates in the forward direction, and the hoisting mechanism of manipulation stride pile frame keeps the power head total
At a pair of of left side long guideway downlink along column, to drive drilling rod of the more piece with stirring blade and cambered surface protecting block, with spiral shell
The auger stem and drilling tool of vane piece rotate in the forward direction and are drilled down into cutting soil layer, complete drilling depth L1.The lowermost drilling tool
The cutting wing carry out drilling, the helical blade of auger stem is convenient for casting and stirring, and the stirring blade being arranged on drilling-rod external wall is just
In being sufficiently stirred for soil, the cambered surface protecting block of drilling-rod external wall setting squeezes protection pore-forming, advantageously forms smooth close hole wall；
The bearing support being installed on a pair of of left side long guideway of column lower end carries out guide support to drilling tool, auger stem and drilling rod, has
Effect guarantees drilling precision and hole quality.After more piece drilling rod, auger stem and drilling tool fully enter stratum completion drilling operation
Vertical machine is closed, so that the power head assembly is shut down, operator enters to plant will topmost basset at stake station
The female connector junction for the section drilling rod being connect at the male connector of one section drilling rod and the output end terminal pad of hollow output shaft
Locking pin shaft removes, and promotes first group of power head assembly along a pair of of left side long guideway of column and completely disengages with the section drilling rod, grasps
The walking mechanism of vertical pile frame is walked the distance that a segment length is H to the left along planting stake station transverse direction；4) second group of power head is total
At and its drilling rod, auger stem and drilling tool drilling cutting, reach and plant in second group of power head assembly and its more piece drilling rod being fixedly mounted with
When stake station, a pair of of right side long guideway along column puts down second group of power head assembly, the more piece drilling rod for being fixedly mounted with its lower end
The male connector of a section drilling rod on stratum is exposed in the female connector alignment of middle one section drilling rod of bottom, is locked after being inserted in place with pin shaft.
The vertical machine of management system, second group of power head assembly of starting rotates in the forward direction, and the hoisting mechanism for manipulating pile frame releases steel
Cord makes the power head assembly along a pair of of right side long guideway downlink of column, so that more piece be driven to have stirring blade and cambered surface
The drilling rod of protecting block, the auger stem with helical blade and drilling tool rotate in the forward direction and continue to be drilled down into cutting soil layer, complete to bore
Depth L2 is dug, in this way, drilling total depth reaches L1+L2.The cutting wing of the lowermost drilling tool carries out drilling, the spiral of auger stem
Blade is convenient for casting and stirring, and the stirring blade being arranged on drilling-rod external wall is sufficiently stirred convenient for soil, drilling-rod external wall setting
Cambered surface protecting block squeezes protection pore-forming, advantageously forms smooth close hole wall.It is installed in a pair of of right side long guideway of column lower end
On bearing support to drilling tool, auger stem and drilling rod carry out guide support, drilling precision and hole quality is effectively ensured.Manipulation the
Two groups of power head assemblies and its drilling rod, auger stem and the drilling tool that are fixedly mounted with continue drilling along a pair of of right side long guideway of column and cut
It cuts, until reaching the soil bearing stratum depth of design requirement；5) second group of power head assembly and its more piece drilling rod, auger stem and
Operation is whitewashed and stirred to drilling tool, and the hoisting mechanism of manipulation stride pile frame releases wirerope, and a pair of of right side length along column is led
Rail promotes second group of power head assembly and its more piece drilling rod, auger stem and drilling tool, while manipulating the system that backstage is equipped with and being for slurry
System injects solidification cement slurry to the inner cavity of hollow output shaft, more piece drilling rod, auger stem and drilling tool by grouting pipeline, finally
Rotation slip casting is carried out to pore-forming by the injected hole that drilling tool lower end is arranged, thus promoting more piece drilling rod, auger stem and drilling tool
Make to solidify in the process and be sufficiently stirred in cement slurry injection pore-forming with original place soil, reaches that hole body is uniform up and down, drilling generation at this time
Hole slag is also carried over outside pore-forming, is effectively ensured and is planted stake holes weight；6) more piece drilling rod, auger stem and drilling tool lifting and disassembly,
A) a pair of of right side long guideway uplink of second group of power head assembly along column is manipulated, goes upward to guide rail to second group of power head assembly
Defined position when, remove the female connector of section drilling rod and its lower more piece drilling rod connected of the connection of second group of power head assembly lower end
The locking pin shaft of middle one section drilling rod hero joint of the top hangs the more piece drilling rod all extracted using crane, will
The lock of the female connector of one section drilling rod of least significant end and the section drilling rod hero joint to basset in the more piece drilling rod of the extraction
Rationed marketing axis removes, and crane for hoisting to stacking area is utilized after separating more piece drilling rod；B) second group of power head assembly is manipulated along vertical
A pair of of right side long guideway downlink of column, the section drilling rod that the female connector alignment insertion of a section drilling rod that its lower end connects is basseted
Male connector after locked with pin shaft；It manipulates hoisting mechanism and releases second group of power head assembly of rope hoisting, remained in ground
In layer when more piece drilling rod, auger stem and drilling tool lifting to ground, whole drilling rods, auger stem and drilling tool are removed, removes second
Organize power head assembly lower end terminal pad and the male joint of one section drilling rod of the top in the more piece drilling rod connecting below
Lock pin shaft, after separating more piece drilling rod with second group of power head assembly, the handling more piece drilling rod, the spiral shell that will remove using crane
Rotary drill bar and drilling tool are to stacking area；7) prefabricated pile is implanted into, and pile follower cap, benefit a) are installed at the terminal pad of second group of power head assembly
The prefabricated pile being implanted into will be needed to hang in crane to plant in stake holes, which sinks to entering by self weight plants in stake holes；B) it grasps
Vertical second group of power head assembly makes pile follower cap with second group of power head along a pair of of right side long guideway downlink of the column of stride pile frame
Assembly downlink rear enclosure is loaded on precast pile head；B) hoisting mechanism for continuing manipulation stride pile frame, makes second group of power head assembly
And its pile follower cap downlink of connection, the prefabricated pile are pressed into Completion of Drilling Hole by the weight of its self weight and second group of power head assembly
It is inside finally reached designed elevation, by forming prefabricated pile with stake end and pile peripheral earth after solidifying cement slurry hardening in stake end and stake week
The plant pile body basis of one.
Preferably, in step 3), the vertical machine in two groups of power head assemblies is all made of 8 pole variable-frequency motors and external change
The revolving speed of hollow output shaft, more piece drilling rod, auger stem and drilling tool and the nothing of torque may be implemented in the starting control mode of frequency device
Grade regulation.
Preferably, in step 5), second group of power head assembly and its more piece drilling rod being fixedly mounted with, auger stem and drilling tool side
The rotation speed for promoting side grouting stirring can be controlled to adjust by external frequency converter, be required in the unit time with meeting
Solidify the technical requirements of cement slurry injection and mixing speed.
Preferably, in step 7), in step 7), the bushing being arranged in the guide through hole of bearing support, internal diameter and plant
The gap for entering prefabricated pile outer diameter is 4.00~6.00mm, guarantees that guiding is good when prefabricated pile implantation pore-forming.
Detailed description of the invention
To the present invention, drilling pile construction method is further described in groups with reference to the accompanying drawings and examples:
Fig. 1 is the structural schematic diagram of drilling pile system in groups in the present invention；
Fig. 2 is the left view of power head assembly in Fig. 1, drilling rod, auger stem and tool part；
Fig. 3 is sectional view along A-A in Fig. 1；
Fig. 4 is the top view of Fig. 1；
Fig. 5 be in the present invention in groups in drilling pile system drilling rod structural scheme of mechanism；
Fig. 6 is the top view of Fig. 5；
Fig. 7 is that two groups of power head assemblies install schematic diagram in place in the present invention；
Fig. 8 is that first group of power head assembly and its drilling rod, stirring drilling rod and drilling tool are drilled down into cutting operation signal in the present invention
Figure；
Fig. 9 is that second group of power head assembly completes drilling rod after the walking of pile frame transverse direction, stirring drilling rod connects work with drilling tool in the present invention
Industry schematic diagram；
Figure 10 be second group of power head assembly and its drilling rod in the present invention, stirring drilling rod and drilling tool be drilled down into cutting, slip casting and
Stir operation schematic diagram.
Specific embodiment
As shown in figures 1 to 6, a kind of drilling pile system that drills in groups, including two groups of power head assemblies 1,1 ', more pieces have
Stirring blade 31 and the drilling rod of cambered surface protecting block 32 3, the auger stem 7 with helical blade 71, the drilling tool 4 with the cutting wing 42,
Two bearing supports, stride pile frame 5 and the manipulation system including drilling machine steerable system, pile frame steerable system and slip casting steerable system
System, every group of power head assembly 1 include lifting tackle 11, the rack 12 with back side guide block 121, vertical machine and reduction gearbox 122
And grouting pipeline, reduction gearbox 122 have hollow output shaft 124；Cambered surface protecting block 32 includes arc panel 321, plate 322 and socket
323；Stride pile frame 5 include the main frame 51 at least two groups hoisting mechanism, have front and back jacking cylinder 561,561 ' and
The lifting body 56 of left and right jacking cylinder 562,562 ' and there are two lateral strides 551,551 ' and two longitudinal direction strides 552,
552 ' walking mechanism 55 is had column 52, top made of the docking of column cylinder 521 of two pairs of guide rails 522,522 ' by more piece
Portion's pulley yoke 53 and two hounds 54,54 '；Servo-actuated retaining frame 8 includes the retaining frame body 82 with pilot hole 821, is located at retaining frame body
The retaining frame guide block 81 and neck bush 83 of rear end；After bearing support 6 includes the frame body 62 with guide through hole 621, is located at frame body
A pair of of guide plate 61 and bushing 63 in portion；Wherein:
The column 52 of the stride pile frame 5 is located at the front of main frame 51；Described two hounds 54,54 ' are arranged symmetrically
In the left and right sides of column 52, one end is respectively hinged at the branch that 521 back side of a section column cylinder of upper end is leaned in column 52
On seat, the other end is respectively hinged on the left back of main frame 51 and the support of right back；The two of the column cylinder 521
Its left and right sides is arranged along column cylinder vertical direction with V-type symmetric mode to guide rail 522,522 ', is existed respectively after interconnection
The left and right sides of column 52 forms two pairs of long guideways；The top pulleys frame 53 is installed in a section column cylinder on 52 top of column
521 upper ends, front end are equipped with two pulley blocks 531,531 ' of V-type symmetrical arrangement；The lifting body 56 is arranged
In the lower section on pile frame chassis 51, its front and back jacking cylinder 561,561 ' and the upper end of left and right jacking cylinder 562,562 ' is solid respectively
Below front and rear part loaded on pile frame chassis 51 and below left and right part, front and back jacking cylinder 561,561 ' and left and right jacking cylinder 562,
562 ' lower end is installed in the two lateral strides 551,551 ' and two longitudinal strides 552,552 ' of walking mechanism 55 respectively.
Two groups of power head assemblies 1,1 ' are respectively placed in the stake by the back side guide block 121 in its rack 12 respectively
On two pairs of long guideways of the column 52 of frame 5, the left and right of the hollow output shaft 224 of their reduction gearbox 122 in 52 cross section of column
Center between direction is away from for H；The wirerope drawn on two groups of hoisting mechanisms of the main frame 51 is each passed through stride stake
Two pulley blocks 531,531 ' of the top pulleys frame 53 of frame 5 bypass the lifting tackle 11 of every group of power head assembly 1,1 ' afterwards, with
Make every group of power head assembly 1,1 ' that promotion and downward movement can be carried out respectively on two pairs of long guideways of column 52.
The hollow output shaft 124 of the reduction gearbox 122 of two groups of power head assemblies 1,1 ' is slowed down respectively with passing perpendicularly through
The cabinet mode of case 12 is installed, their upper end is connect with grouting pipeline after being fixedly mounted with swivel joint；Wherein, one group of power head is total
More piece drilling rod 3, auger stem 7 and drilling tool 4 are successively fixedly mounted with after lower end installation terminal pad at 1 hollow output shaft 224, another group
More piece drilling rod 3 is fixedly mounted with after the lower end installation terminal pad of the hollow output shaft 224 of power head assembly 1 '；Every group of power head assembly
1 vertical machine is all made of the starting control mode of 8 pole variable-frequency motors and external frequency converter, realizes to hollow output shaft 124
The adjusting control for exporting revolving speed and output torque, reaches the stepless of more piece drilling rod 3, the revolving speed of auger stem 7 and drilling tool 4 and torque
Regulation.The starting control mode guarantees motor high speed or low speed long-time stable and obtains effectively by using 8 pole variable-frequency motors
Heat dissipation, meets the drilling job requirements of low-speed big.External frequency converter can realize soft starter for motor, avoid going out when electric motor starting
Existing high current realizes motor high-precision revolving speed in larger scope and the control of torque stepless changing, adapts to Different Strata structure, multiple
The variation on miscellaneous stratum, be effectively ensured drilling, stirring and plant pile driving construction process it is smooth, further increase drilling operating efficiency.
There are three the cambered surface protecting blocks 32 of the drilling rod 3, is set to above the outer wall of drilling rod body 30 in a manner of radial symmetric, institute
Stirring blade 31 is stated to be set on the outer wall of drilling rod body 30 in a manner of being located at 32 lower section of retaining wall circle；Each cambered surface protecting block 32 it is interior
Wall is equipped with socket 323, and each plate 322 is set to the outer wall of the drilling rod body 30 of the drilling rod 3, each cambered surface with radial symmetric
Protecting block 32 is locked on socket 323 by its plate 322 with pin shaft respectively.In this way, in two groups of power head assemblies, drilling rod, stirring
It mixes drilling rod and drilling tool is drilled down into and is promoted in whipping process, which can carry out extruding and retaining wall to pore-forming inner wall,
Smooth close hole body inner wall is formed, convenient for guaranteeing to plant pile driving construction quality.If the cambered surface abrasion of cambered surface protecting block is more than defined
Dimension limit, it is convenient to be replaced by dismantling pin shaft, the maintenance cost using unit is effectively reduced, improves drilling machine
Construction efficiency.
The guide through hole 621 of the bearing support 6 is located at the front end of frame body 62, in install bushing 63, the bushing 63 by
Two symmetrical semi-circular shapes or three symmetrical arc neck bush compositions；It is more than when occurring bushing bore wear in use process
After defined dimension limit, each arc neck bush is dismantled with can be convenient, construction is effectively reduced in the arc neck bush more renewed
Cost.Two bearing supports 6 are installed on two pairs of long guideways of column 52 by its guide plate 61 respectively.
More piece drilling rod 3,7 and of auger stem of the lower end connection of one group of power head assembly 1 in two groups of power head assemblies
Drilling tool 4 and the more piece drilling rod 3 of another group of power head assembly 1 connection are each passed through the front end guide through hole 621 of each bearing support 5
63 inner wall of bushing of interior setting carries out drilling cutting to stratum.The stirring blade 31 of the more piece drilling rod 3 and the cutting wing of drilling tool 4
The bushing 63 being arranged in the guide through hole 62 of the front end pilot hole 821 and bearing support 6 of 42 maximum rotating diameters and servo-actuated retaining frame 8
Fit clearance between internal diameter is 8.00~12.00mm.In this way, in two groups of power head assemblies and its more piece drilling rod, auger stem
With when drilling tool downlink drilling due to obtaining the dual guiding and bearing of servo-actuated retaining frame 8 and bearing support 6, it is ensured that its drilling, slip casting and
Stirring is stablized, to improve the construction quality of drilling pile.
The drilling machine steerable system of the steerable system is to two groups of power head assemblies 1,1 ', more piece drilling rod 3,7 and of auger stem
Manipulation and control, at least two groups hoisting mechanism, lifting body of the pile frame steerable system to stride pile frame 6 are made in the operation of drilling tool 4
56 and operation/movement of walking mechanism 55 make manipulation and control, the slip casting steerable system makees the operation of pulp feeding system processed from the background
Manipulation and control；The steerable system shows and controls to operating parameter, technical parameter and the construction parameter in drilling pile construction,
And realize the storage and printout of associated construction parameter.The steerable system is shown by console using intelligent control technology and is bored
Hole machine practice of construction data and grouting system operating condition, and can be by drilling, the data record of slip casting process, preservation, printing
Data form and graph curve, it is possible to provide analysis foundation of the user as entire drilling pile work progress.The steerable system
Display parameters include: the revolving speed of vertical machine, operating temperature and direction of rotation in power head assembly, and drilling tool/drilling rod revolving speed turns
To and torque, drilling (stirring) depth, stride pile frame hydraulic system working pressure, flow and hydraulic oil oil temperature, stride pile frame incline
Gradient and pile frame pulling capacity, slip casting pump pressure, instantaneous cement slurry volume, total slurry amount, practical total slurry amount and the total note of pulp feeding system processed
Water, pile frame chassis longitudinal direction/transverse shifting speed, and plant pile absolute altitude etc. after stake.
In conjunction with shown in Fig. 1-10, construction method provided by the invention, comprising the following steps:
Step 1: preparing before construction
A) construction site is cleared up, evenness of road surface, no low latitude high-tension bus-bar are kept, it is ensured that construction area safety；
B) two directions in length and breadth are adjusted and determined using theodolite, the base of the walking displacement of pile frame chassis 51 as stride pile frame 5
It is quasi-；
C) stride pile frame 5 assembles, using wherein equipment by two of walking mechanism 55 lateral strides 551,551 ' and two longitudinal directions
Along the horizontal and vertical direction that theodolite determines, lifting is arranged in front of plant stake station stride 552,552 ' respectively, lifting body 56
It is set to the lower section on pile frame chassis 51, its front and back jacking cylinder 561,561 ' and the upper end of left and right jacking cylinder 562,562 ' are divided
It is not installed in below the front and rear part on pile frame chassis 51 and below left and right part, front and back jacking cylinder 561,561 ' and left and right jacking cylinder
562,562 ' lower end is installed in the two lateral strides 551,551 ' and two longitudinal strides 552 of walking mechanism 55 respectively,
552 ', complete the installation on pile frame chassis 51；Front installation on pile frame chassis 51 has two pairs of guide rails 522,522 ' by more piece
Column 52, top pulleys frame 53 and two hounds 54,54 ' made of column cylinder 521 docks；The column 52 of stride pile frame 5
Positioned at the front on pile frame chassis 51；Two hounds 54,54 ' are symmetrically arranged in the left and right sides of column 52, and one end is divided equally
It is not hinged in column 52 on the support at 521 back side of a section column cylinder of upper end, the other end is respectively hinged at pile frame bottom
On the left back of disk 51 and the support of right back；Two pairs of guide rails 522,522 ' of column cylinder 521 are with V-type symmetric mode along column
Vertical direction arranges its left and right sides, forms long guideway and the right side on the left of a pair in the left and right sides of column 52 respectively after interconnection
Side long guideway；Top pulleys frame 53 is installed in 521 upper end of a section column cylinder on 52 top of column, and front end is equipped with V-type
Two pulley blocks 531,531 ' of symmetrical arrangement.
Step 2: two groups of power head assemblies 1,1 ' of installation
A) wirerope drawn on two groups of hoisting mechanisms on the pile frame chassis 51 of stride pile frame 5 is each passed through stride pile frame 5
Top pulleys frame 53 two pulley blocks 531,531 ' afterwards bypass every group of power head assembly 1,1 ' lifting tackle 11, connect it is appropriate
When two groups of power head assemblies 1,1 '；
Two groups of power head assemblies 1,1 ' b) are placed in by the back side guide block 121 in its rack 12 to the column of stride pile frame 5 respectively
On 52 two long guideways, two groups of hoisting mechanisms on the pile frame chassis 51 of stride pile frame 5 are manipulated respectively by two groups of power head assemblies
1,1 ' is promoted to different height along two pairs of long guideways of column 52, wherein the hollow output shaft 224 of first group of power head assembly 1
More piece is fixedly mounted with stirring blade 31 and the drilling rod of cambered surface protecting block 32 3, the spiral shell with helical blade 71 after lower end installation terminal pad
Rotary drill bar 7 and drilling tool 4 are fixedly mounted with more piece and have after 224 lower end of the hollow output shaft installation terminal pad of second group of power head assembly 1 '
Stirring blade 31 and the drilling rod of cambered surface protecting block 32 3；
C) bearing support is installed respectively below two pairs of long guideways of column 52, each bearing support 6 each by its rear end a pair
Guide plate 64 is installed in respectively on two pairs of long guideways；
D) manipulation 52 walking mechanism of column is finely adjusted along the transverse direction displacement for planting stake station, guarantees that a pair of of left side of column is long
Stake station is planted in the rotation center alignment of the first group of power head assembly 1 and its drilling rod 3, auger stem 7 and drilling tool 4 installed on guide rail
Center；
E) cable of two groups of power head assemblies 1,1 ' and grouting pipeline are connected with steerable system and backstage pulp feeding system processed respectively
It connects, wherein Grouting Pipe is connected by the swivel joint of 124 upper end of hollow output shaft and the grouting pipeline of its inner cavity, is carried out unloaded
Operation test ensures compliance with construction requirement.
Step 3: first group of power head assembly 1 and its drilling rod 3, auger stem 7 and the drilling cutting of drilling tool 4
The vertical machine of management system, first group of power head assembly 1 of starting rotates in the forward direction, and manipulates the hoisting mechanism of pile frame 5
Make a pair of of left side long guideway downlink of the power head assembly along column 52, to drive more piece that there is stirring blade 31 and retaining wall circle
32 drilling rod 3, the auger stem 7 with helical blade 71 and drilling tool 4 rotate in the forward direction and are drilled down into cutting soil layer, complete drilling
Depth L1.The cutting wing of the lowermost drilling tool 4 carries out drilling, and the helical blade 71 of auger stem 7 is convenient for casting and stirring, drilling rod
The stirring blade 31 being arranged on 3 outer walls is sufficiently stirred convenient for soil, the retaining wall circle 32 of drilling rod 3 outer wall setting squeeze protection at
Hole advantageously forms smooth close hole wall；The bearing support 6 on a pair of of left side long guideway of 52 lower end of column is installed in drilling tool
4, auger stem 7 and drilling rod 3 carry out guide support, and drilling precision and hole quality is effectively ensured.In more piece drilling rod 3, auger
Bar 7 and drilling tool 4 fully enter after drilling operation is completed on stratum and close vertical machine, and the power head assembly is made to shut down, and operate
Personnel, which enter, to plant the output end of the male connector of the section drilling rod 3 topmost to basset and hollow output shaft 124 at stake station
The locking pin shaft of the female connector junction of the section drilling rod 3 connected at terminal pad removes, along a pair of of left side long guideway of column 52
It promotes first group of power head assembly 1 to completely disengage with the section drilling rod 3, manipulates the walking mechanism of pile frame 5 along plant stake station transverse direction side
To the distance that a segment length is H of walking to the left；Vertical machine in two groups of power head assemblies 1,1 ' be all made of 8 pole variable-frequency motors and
Turning for hollow output shaft 124, more piece drilling rod 3, auger stem 7 and drilling tool 4 may be implemented in the starting control mode of external frequency converter
Speed is stepless regulated with torque.
Step 4: second group of power head assembly 1 ' and its drilling rod 3, auger stem 7 and the drilling cutting of drilling tool 4
When second group of power head assembly 1 ' and its more piece drilling rod 3 being fixedly mounted with reach and plant stake station, along a pair of of right side of column 52
Long guideway puts down second group of power head assembly 1 ', makes the female of one section drilling rod 3 of bottom in the more piece drilling rod for being fixedly mounted with its lower end
The male connector of a section drilling rod 3 on stratum is exposed in connector alignment, is locked after being inserted in place with pin shaft.Management system, starting the
The vertical machine of two groups of power head assemblies 1 ' rotates in the forward direction, and the hoisting mechanism of manipulation pile frame 5, which releases wirerope, keeps the power head total
At a pair of of right side long guideway downlink along column 5, thus drive more piece have stirring blade 31 and retaining wall circle 32 drilling rod 3,
Auger stem 7 with helical blade 71 and the drilling tool 4 with the expansion wing 41 rotate in the forward direction and continue to be drilled down into cutting soil layer, complete
At drilling depth L2, in this way, drilling total depth reaches L1+L2.The cutting wing of the lowermost drilling tool 4 carries out drilling, auger stem 7
Helical blade 71 be convenient for casting and stirring, the stirring blade 31 being arranged on 3 outer wall of drilling rod being sufficiently stirred convenient for soil, drilling rod
The retaining wall circle 32 of 3 outer walls setting) protection pore-forming is squeezed, advantageously form smooth close hole wall.It is installed in 52 lower end of column
Bearing support 6 on a pair of of right side long guideway carries out guide support to drilling tool 4, auger stem 7 and drilling rod 3, and drilling essence is effectively ensured
Degree and hole quality.Second group of power head assembly 1 ' and its drilling rod 3 being fixedly mounted with, auger stem 7 and drilling tool 4 are manipulated along column 52
A pair of of right side long guideway continues drilling cutting, until reaching the soil bearing stratum depth of design requirement.
Step 5: second group of power head assembly 1 ' and its more piece drilling rod 3, auger stem 7 and drilling tool 4 are stirred and whitewash
Operation
The hoisting mechanism for manipulating stride pile frame 5 releases wirerope, and a pair of of right side long guideway along column 52 promotes second group of power
Head assembly 1 ' and its more piece drilling rod 3, auger stem 7 and drilling tool 4, while the pulp feeding system processed that backstage is equipped with is manipulated, pass through slip casting
Pipeline injects solidification cement slurry to the inner cavity of hollow output shaft 124, more piece drilling rod 3, auger stem 7 and drilling tool 4, finally by drilling tool
The injected hole of 4 lower ends setting carries out rotation slip casting to pore-forming, thus promoting more piece drilling rod 3,4 mistake of auger stem 7 and drilling tool
Make to solidify in journey and be sufficiently stirred in cement slurry injection pore-forming with original place soil, reaches the hole that hole body is uniform up and down, and drilling generates at this time
Slag is also carried over outside pore-forming, is effectively ensured and is planted stake holes weight.Second group of power head assembly 1 ' and its more piece drilling rod 3, auger
Bar 7 and drilling tool 4 rotation speed of grouting stirring when being promoted can be controlled to adjust by external frequency converter, to meet unit
What is required in time solidifies the technical requirements of cement slurry injection and mixing speed.
Step 6, more piece drilling rod 3, auger stem 7 and drilling tool lifting and disassembly
A) a pair of of right side long guideway uplink of second group of power head assembly 1 ' along column 52 is manipulated, to second group of power head assembly 1 '
When going upward to the defined position of guide rail, under the female connector of a section drilling rod 3 and its that remove the connection of second group of 1 ' lower end of power head assembly
The locking pin shaft of the male joint of one section drilling rod of the top 3, is hung using crane and has all been pulled out in the more piece drilling rod 3 of connection
More piece drilling rod 3 out bores the female connector of one section drilling rod 3 of least significant end in the more piece drilling rod 3 of the extraction with the section to basset
The locking pin shaft of the male joint of bar 3 removes, and crane for hoisting to stacking area is utilized after separating more piece drilling rod 3；
B) a pair of of right side long guideway downlink of second group of power head assembly 1 ' along column 52, the section that its lower end is connected are manipulated
It is locked after the male connector for the section drilling rod 3 that the alignment insertion of the female connector of drilling rod 3 is basseted with pin shaft；It manipulates hoisting mechanism and releases steel
Cord promotes second group of power head assembly 1 ', is remained in more piece drilling rod 3 in stratum, auger stem 7 and drilling tool 4 and is promoted to ground
When face, remove whole drilling rods 3, auger stem 7 and drilling tool 4, remove second group of power head assembly, 1 ' lower end terminal pad with below
The locking pin shaft of the male joint of one section drilling rod 3 of the top, makes more piece drilling rod 3 and second group in the more piece drilling rod 3 of connection
After power head assembly 1 ' separates, using crane by the handling more piece drilling rod 3, auger stem 7 and the drilling tool 4 that remove to stacking area.
Step 7, prefabricated pile implantation
A) pile follower cap is installed in lower end at the terminal pad of second group of power head assembly 1 ', will need to be implanted into using crane prefabricated
Stake, which is hung in, plants in stake holes, which sinks to entering by self weight plants in stake holes；It is arranged in the guide through hole 621 of bearing support 6
The gap of bushing 63, internal diameter and implantation prefabricated pile outer diameter is 4.00~6.00mm, guarantees to be oriented to when prefabricated pile implantation pore-forming good
It is good, meet the required precision of implantation pile；
B) second group of power head assembly 1 ' is manipulated along a pair of of right side long guideway downlink of the column 52 of stride pile frame 5, makes pile follower cap
With second group of 1 ' downlink rear enclosure of power head assembly loaded on precast pile head；
C) hoisting mechanism for continuing manipulation stride pile frame 5, makes the pile follower cap downlink of second group of power head assembly and its connection, should
Prefabricated pile is pressed into Completion of Drilling Hole by the weight of its self weight and second group of power head assembly 1 ' and is finally reached designed elevation, leads to
It crosses stake end and so that prefabricated pile and stake end and pile peripheral earth is formed integrated plant pile body basis after solidifying cement slurry hardening stake week.
Drilling pile construction method makes to be installed on the column guide rail of stride pile frame the present invention by steerable system in groups
Successively drilling, slip casting, stirring and prefabricated pile are implanted into operation to two groups of power head assemblies, and stride pile frame is using theodolite as benchmark along plant
The stake traversing fine tuning of station, guarantee the female connector of drilling rod that is fixedly mounted with of second group of power head assembly lower end with by first group of power head assembly
The drilling that lower end is fixedly mounted with enters the locking of the Dock With Precision Position between the male connector to basset on the drilling rod on stratum, realizes drilling mistake
It only needs adjunction of drilling rod to be just able to satisfy the construction requirement of drilling depth in journey, avoids between drilling rod, between drilling rod and drilling tool
Frequently docking, and also need to only dismantle successively drilling rod male and female when promoting whole drilling rods and drilling tool to ground after completing drilling operation and connect
Head reduces the operation intensity of operator, effectively improves drilling pile operating efficiency.In addition, being respectively arranged in first and second
The perpendicularity deviation value of the drilling hole body monitored at any time is transmitted to behaviour by the inclination sensor of the rack side of group power head assembly
It on the control panel of vertical system, rectifies a deviation convenient for operator, guarantees that the verticality of drilling pore-forming meets design requirement.And
During planting stake, on the one hand by changing bearing support upper bushing internal diameter, guarantee that guiding is good when prefabricated pile implantation pore-forming, separately
On the one hand pass through the inclination sensor of the rack side installation of second group of power head assembly, it is ensured that the prefabricated pile of implantation enters preboring
Verticality in the hole of hole reaches design requirement, and precisely plant stake positioning to depth dimensions of the embedded pile in prebored hole to reach
To designed elevation requirement, to be further ensured that the construction quality of drilling pile, the equipment purchase cost of unit in charge of construction is reduced.
Claims (4)
1. a kind of drilling pile construction method in groups, comprising the following steps:
1) prepare before construction
A) construction site is cleared up, evenness of road surface, no low latitude high-tension bus-bar are kept, it is ensured that construction area safety；
B) two directions in length and breadth are adjusted and determined using theodolite, and the pile frame chassis (51) as stride pile frame (5), which is walked, to be shifted
Benchmark；
C) stride pile frame (5) assembles, using wherein equipment by two of walking mechanism (55) lateral strides (551,551 ') and two
Along the horizontal and vertical direction that theodolite determines, lifting is arranged in front of plant stake station a longitudinal direction stride (552,552 ') respectively, top
Rise the lower section that mechanism (56) are set to pile frame chassis (51), its front and back jacking cylinder (561,561 ') and left and right jacking cylinder
The upper end of (562,562 ') is installed in respectively below the front and rear part on pile frame chassis (51) and below left and right part, front and back jacking cylinder
(561,561 ') and the lower end of left and right jacking cylinder (562,562 ') are installed in two lateral strides of walking mechanism (55) respectively
(551,551 ') and two longitudinal strides (552,552 '), complete the installation of pile frame chassis (51)；Before pile frame chassis (51)
Portion's installation has column (52), top pulleys made of column cylinder (521) docking of two pairs of guide rails (522,522 ') by more piece
Frame (53) and two hounds (54,54 ')；The column (52) of stride pile frame (5) is located at the front on pile frame chassis (51)；Two
Hound (54,54 ') is symmetrically arranged in the left and right sides of column (52), and one end is respectively hinged in column (52) by upper end
Section column cylinder (521) back side support on, the other end be respectively hinged at pile frame chassis (51) left back and it is right after
On the support of side；Two pairs of guide rails (522,522 ') of column cylinder (521) are with V-type symmetric mode along column cylinder vertical direction cloth
Its left and right sides is set, long guideway and right side length on the left of a pair is formed in the left and right sides of column (52) respectively after interconnection and leads
Rail；Top pulleys frame (53) is installed in section column cylinder (521) upper end on column (52) top, and front end is equipped with V-type
Two pulley blocks (531,531 ') of symmetrical arrangement；
2) two groups of power head assemblies (1,1 ') are installed
A) wirerope drawn on two groups of hoisting mechanisms on the pile frame chassis (51) of stride pile frame (5) is each passed through stride stake
Two pulley blocks (531,531 ') of the top pulleys frame (53) of frame (5) are sliding around the promotion of every group of power head assembly (1,1 ') afterwards
It takes turns (11), connects appropriate two groups of power head assemblies (1,1 ')；
B) two groups of power head assemblies (1,1 ') are placed in stride pile frame by the back side guide block (121) in its rack (12) respectively
(5) on two pairs of long guideways of column (52), two groups of hoisting mechanisms difference on the pile frame chassis (51) of stride pile frame (5) is manipulated
Two groups of power head assemblies (1,1 ') are promoted to different height along two pairs of long guideways of column (52), wherein first group of power head
More piece is fixedly mounted with stirring blade (31) and cambered surface protecting block after hollow output shaft (224) the lower end installation terminal pad of assembly (1)
(32) drilling rod (3), auger stem (7) and drilling tool (4) with helical blade (71), in second group of power head assembly (1 ')
The drilling rod (3) that more piece has stirring blade (31) and cambered surface protecting block (32) is fixedly mounted with after empty output shaft (224) lower end installation terminal pad；
C) bearing support is installed respectively below two pairs of long guideways of column (52), each bearing support (6) is each by its rear end
A pair of of guide plate (64) is installed in respectively on two pairs of long guideways；
D) manipulation column (52) walking mechanism is finely adjusted along the transverse direction displacement for planting stake station, guarantees a pair of of left side of column
The rotation center pair of the first group of power head assembly (1) and its drilling rod (3), auger stem (7) and drilling tool (4) installed on long guideway
Standard plants the center of stake station；
E) by the cable of two groups of power head assemblies (1,1 ') and grouting pipeline respectively with steerable system and backstage pulp feeding system processed
Connection, wherein Grouting Pipe is connected by the swivel joint of hollow output shaft (124) upper end and the grouting pipeline of its inner cavity, is carried out
Idle running test, ensures compliance with construction requirement；
3) first group of power head assembly (1) and its drilling rod (3), auger stem (7) and drilling tool (4) drilling cutting
The vertical machine of management system, first group of power head assembly (1) of starting rotates in the forward direction, manipulation stride pile frame (5)
Hoisting mechanism makes a pair of of left side long guideway downlink of the power head assembly along column (52), so that more piece be driven to have stirring blade
(31) it is rotated in the forward direction simultaneously with the drilling rod (3) of cambered surface protecting block (32), the auger stem (7) with helical blade (71) and drilling tool (4)
It is drilled down into cutting soil layer, completes drilling depth L1；
The cutting wing of the lowermost drilling tool (4) carries out drilling, and the helical blade (71) of auger stem (7) is convenient for casting and stirring,
The stirring blade (31) being arranged on drilling rod (3) outer wall is sufficiently stirred convenient for soil, the cambered surface protecting block of drilling rod (3) outer wall setting
(32) protection pore-forming is squeezed, smooth close hole wall is advantageously formed；It is installed in a pair of of left side long guideway of column (52) lower end
On bearing support (6) to drilling tool (4), auger stem (7) and drilling rod (3) carry out guide support, be effectively ensured drilling precision and at
Hole quality；
It is fully entered after drilling operation is completed on stratum in more piece drilling rod (3), auger stem (7) and drilling tool (4) and closes vertical machine,
The power head assembly is set to shut down, operator, which enters, to plant the section drilling rod (3) topmost to basset at stake station
The locking of the female connector junction for the section drilling rod (3) being connect at male connector and the output end terminal pad of hollow output shaft (124)
Pin shaft removes, and it is completely de- to promote first group of power head assembly (1) and the section drilling rod (3) along a pair of of left side long guideway of column (52)
From, manipulate pile frame (5) walking mechanism along plant stake station transverse direction walk to the left a segment length be H distance；
4) second group of power head assembly (1 ') and its drilling rod (3), auger stem (7) and drilling tool (4) drilling cutting
When second group of power head assembly (1 ') and its more piece drilling rod (3) being fixedly mounted with reach and plant stake station, along the one of column (52)
Second group of power head assembly (1 ') is put down to right side long guideway, one section drilling rod of bottom in the more piece drilling rod for being fixedly mounted with its lower end
(3) the male connector of a section drilling rod (3) on stratum is exposed in female connector alignment, is locked after being inserted in place with pin shaft；
The vertical machine of management system, second group of power head assembly (1 ') of starting rotates in the forward direction, and manipulates the elevator of pile frame (5)
Mechanism, which releases wirerope, makes second group of power head assembly continue a pair of of right side long guideway downlink along column (5), to drive
Drilling rod (3) of the more piece with stirring blade (31) and cambered surface protecting block (32), auger stem (7) and band with helical blade (71)
The drilling tool (4) for expanding the wing (41) rotates in the forward direction and continues to be drilled down into cutting soil layer, completes drilling depth L2, in this way, drilling is total
Depth reaches L1+L2；
The cutting wing of the lowermost drilling tool (4) carries out drilling, and the helical blade (71) of auger stem (7) is convenient for casting and stirring,
The stirring blade (31) being arranged on drilling rod (3) outer wall is sufficiently stirred convenient for soil, the cambered surface protecting block of drilling rod (3) outer wall setting
(32) protection pore-forming is squeezed, smooth close hole wall is advantageously formed；
The bearing support (6) being installed on a pair of of right side long guideway of column (52) lower end is to drilling tool (4), auger stem (7) and bores
Bar (3) carries out guide support, and drilling precision and hole quality is effectively ensured；
It manipulates second group of power head assembly (1 ') and its drilling rod (3), auger stem (7) and the drilling tool (4) that are fixedly mounted with is along column (52)
A pair of of right side long guideway continue drilling cutting, until reaching the soil bearing stratum depth of design requirement；
5) second group of power head assembly (1 ') and its more piece drilling rod (3), auger stem (7) and drilling tool (4) are whitewashed and are stirred
Operation
The hoisting mechanism for manipulating stride pile frame (5) releases wirerope, and a pair of of right side long guideway along column (52) promotes second group
Power head assembly (1 ') and its more piece drilling rod (3), auger stem (7) and drilling tool (4), while manipulating the system that backstage is equipped with and being for slurry
System is injected admittedly by grouting pipeline to the inner cavity of hollow output shaft (124), more piece drilling rod (3), auger stem (7) and drilling tool (4)
Change cement slurry, rotation slip casting finally is carried out to pore-forming by the injected hole that drilling tool (4) lower end is arranged, thus promoting more piece drilling rod
(3), make to be sufficiently stirred in solidification cement slurry injection pore-forming with original place soil during auger stem (7) and drilling tool (4), reach hole body
Up and down uniformly, the hole slag that drilling generates at this time is also carried over outside pore-forming, is effectively ensured and is planted stake holes weight；
6) more piece drilling rod (3), auger stem (7) and drilling tool lifting and disassembly
A) a pair of of right side long guideway uplink of second group of power head assembly (1 ') along column (52) is manipulated, it is total to second group of power head
When going upward to the defined position of guide rail at (1 '), the section drilling rod (3) for removing the connection of second group of power head assembly (1 ') lower end is female
The locking pin shaft of the male joint of one section drilling rod (3) of the top, utilizes lifting in connector and its lower more piece drilling rod (3) connected
Machine hangs the more piece drilling rod (3) all extracted, by female the connecing of one section drilling rod (3) of least significant end in the more piece drilling rod (3) of the extraction
The locking pin shaft of head and the male joint of the section drilling rod (3) to basset removes, and utilizes after separating more piece drilling rod (3)
Heavy-duty machine is hoisted to stacking area；
B) a pair of of right side long guideway downlink of second group of power head assembly (1 ') along column (52) is manipulated, its lower end is connected
It is locked after the male connector for the section drilling rod (3) that the female connector alignment insertion of one section drilling rod (3) is basseted with pin shaft；Manipulate hoist engine
Structure releases second group of power head assembly (1 ') of rope hoisting, is remained in more piece drilling rod (3) in stratum, auger stem (7)
When being promoted to ground with drilling tool (4), whole drilling rods (3), auger stem (7) and drilling tool (4) are removed, it is total to remove second group of power head
At (1 ') lower end terminal pad and the male joint of one section drilling rod (3) of the top in the more piece drilling rod (3) connecting below
Lock pin shaft, after separating more piece drilling rod (3) with second group of power head assembly (1 '), the handling more piece that will remove using crane
Drilling rod (3), auger stem (7) and drilling tool (4) are to stacking area；
7) prefabricated pile is implanted into
A) pile follower cap is installed at the terminal pad of second group of power head assembly (1 '), the prefabricated pile for needs being implanted into using crane
It hangs in and plants in stake holes, which sinks to entering by self weight plants in stake holes；
B) hoisting mechanism for manipulating stride pile frame (5) releases wirerope, makes second group of power head assembly (1 ') along stride pile frame
(5) a pair of of right side long guideway downlink of column (52), pile follower cap is set in prefabricated with second group of power head assembly (1 ') downlink
On pile head；
C) continue hoisting mechanism and release wirerope, make the pile follower cap downlink of second group of power head assembly (1 ') and its connection, this is pre-
Stake processed is pressed into Completion of Drilling Hole by the weight of its self weight and second group of power head assembly (1 ') and is finally reached designed elevation, leads to
It crosses stake end and so that prefabricated pile and stake end and pile peripheral earth is formed integrated plant pile body basis after solidifying cement slurry hardening stake week.
2. construction method according to claim 1, which is characterized in that in step 3), two groups of power head assemblies (1,1 ')
In vertical machine be all made of the starting control mode of 8 pole variable-frequency motors and external frequency converter, hollow output shaft may be implemented
(124), more piece drilling rod (3), the revolving speed of auger stem (7) and drilling tool (4) and torque is stepless regulated.
3. construction method according to claim 1, which is characterized in that in step 5), second group of power head assembly (1 ')
And its rotation speed for more piece drilling rod (3), auger stem (7) and drilling tool (4) side the Bian Tisheng grouting stirring being fixedly mounted with can pass through
External frequency converter adjusts control, meets the technical requirements for solidifying cement slurry injection and mixing speed in the unit time.
4. construction method according to claim 1, which is characterized in that in step 7), the guide through hole of bearing support (6)
(621) gap of the bushing (63) being arranged in, internal diameter and implantation prefabricated pile outer diameter is 4.00~6.00mm, guarantees that prefabricated pile is planted
Guiding is good when entering pore-forming.
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| CN201910638955.2A CN110374500B (en) | 2019-07-16 | 2019-07-16 | Grouped drilling and pile planting construction method |
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|---|---|---|---|
| CN201910638955.2A CN110374500B (en) | 2019-07-16 | 2019-07-16 | Grouped drilling and pile planting construction method |
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| CN115839216A (en) * | 2023-02-28 | 2023-03-24 | 福建厦兴重工机械有限公司 | Multifunctional composite pile machine |
| CN115928700A (en) * | 2023-01-06 | 2023-04-07 | 福建厦兴重工机械有限公司 | Full-hydraulic walking type hole-leading gravel filling pile machine |
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