CN104763328B - A kind of hydraulic pressure reaming circulation drilling machine and its reaming pile constructing process - Google Patents
A kind of hydraulic pressure reaming circulation drilling machine and its reaming pile constructing process Download PDFInfo
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- CN104763328B CN104763328B CN201510155922.4A CN201510155922A CN104763328B CN 104763328 B CN104763328 B CN 104763328B CN 201510155922 A CN201510155922 A CN 201510155922A CN 104763328 B CN104763328 B CN 104763328B
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- reaming
- drilling rod
- mast
- hydraulic pressure
- hydraulic
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- 238000005553 drilling Methods 0.000 title claims abstract description 112
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000004140 cleaning Methods 0.000 claims abstract description 24
- 238000010276 construction Methods 0.000 claims abstract description 20
- 230000005540 biological transmission Effects 0.000 claims abstract description 10
- 230000001808 coupling Effects 0.000 claims abstract description 10
- 238000010168 coupling process Methods 0.000 claims abstract description 10
- 238000005859 coupling reaction Methods 0.000 claims abstract description 10
- 230000000694 effects Effects 0.000 claims abstract description 7
- 239000002965 rope Substances 0.000 claims description 14
- 239000002002 slurry Substances 0.000 claims description 12
- 239000000446 fuel Substances 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 230000002787 reinforcement Effects 0.000 claims description 5
- 241001074085 Scophthalmus aquosus Species 0.000 claims description 3
- 230000035515 penetration Effects 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 description 6
- 230000000875 corresponding Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000003014 reinforcing Effects 0.000 description 2
- CWFOCCVIPCEQCK-UHFFFAOYSA-N Chlorfenapyr Chemical compound BrC1=C(C(F)(F)F)N(COCC)C(C=2C=CC(Cl)=CC=2)=C1C#N CWFOCCVIPCEQCK-UHFFFAOYSA-N 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 229910052570 clay Inorganic materials 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000003068 static Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 230000001360 synchronised Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/28—Enlarging drilled holes, e.g. by counterboring
-
- 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
- E02D5/38—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds
- E02D5/44—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds with enlarged footing or enlargements at the bottom of the pile
-
- 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
- E02D5/48—Piles varying in construction along their length, i.e. along the body between head and shoe, e.g. made of different materials along their length
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
- E21B10/32—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with expansible cutting tools
- E21B10/322—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with expansible cutting tools cutter shifted by fluid pressure
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
- E21B17/046—Couplings; joints between rod or the like and bit or between rod and rod or the like with ribs, pins, or jaws, and complementary grooves or the like, e.g. bayonet catches
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/02—Drilling rigs characterized by means for land transport with their own drive, e.g. skid mounting or wheel mounting
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0061—Production methods for working underwater
- E02D2250/0076—Drilling
Abstract
A kind of hydraulic pressure reaming circulation drilling machine, including stake owner body and the mast on stake owner's body and mast supporting mechanism, it is characterised in that：Tap is installed in the upper end of mast, be fixedly connected with tap bottom to carry out the hydraulic means of hydraulic coupling transmission with tap, be fixedly connected with the bottom of hydraulic means to carry out the drilling rod of hydraulic coupling transmission with hydraulic means, the unit head for driving drilling rod to rotate is installed in the bottom of mast, being provided with the bottom of drilling rod carries out the reaming bit of hydraulic pressure reaming under hydraulic means effect.The invention also discloses a kind of reaming pile constructing process of hydraulic pressure reaming circulation drilling machine.It is an advantage of the current invention that：1st, drilling, reaming, borehole cleaning one are realized, and efficiency of construction is high；2nd, by adopting hydraulically powered reaming bit, reaming effect is stable, reliable, efficiency high；3rd, mud circulation borehole cleaning can be carried out during reaming, and reaming quality is good；4th, reaming ability is strong, and maximum diameter of enlarged bore is up to more than 2m.
Description
Technical field
The present invention relates to a kind of piling machine, especially relates to a kind of hydraulic pressure reaming circulation drilling machine and its reaming pile driving construction work
Skill.
Background technology
In high-rise and high-rise building process of construction, it is required for being driven piles, in prior art, has various different structures
Piling machine, the such as Chinese utility model patent of Patent No. ZL 99237847.8 (Authorization Notice No. is 2375670 Y of CN)
Disclosed《Multifunctional pile driver》, the multifunctional pile driver is by upper and lower chassis, pylon, strut, drilling rod, drilling tool, lifting gear
And bracing frame is constituted, the multifunctional pile driver is easy to use and cost is relatively low.And for example Patent No. ZL201120217172.6 (is awarded
Power notification number be 202131986 U of CN) Chinese utility model patent disclosed in《Piling machine》, the piling machine includes a machine
Main body, main body are provided with mast and mast supporting mechanism, are provided with abrasive-disk faucet in the sidepiece of mast, below abrasive-disk faucet with
Drilling rod is connected, and when the piling machine works, drilling rod rotates and starts piling, starts slush pump, using reverse circulation system by mud
Outside is discharged into by the tap above abrasive-disk faucet with small stone.And for example Patent No. ZL 201120319000.X (is awarded
Power notification number be 202214727 U of CN) Chinese utility model patent disclosed in《Piling machine》, the piling machine include chassis,
Car body of getting on the bus is arranged on the top on chassis, is provided with turntable on car body of getting on the bus, and the lower end of arm support is hinged on turntable, and pile frame is vertical
Arrange, pile frame top is connected with arm support upper end, pile frame includes guide rail, guide rail is arranged on the support body of pile frame along the bearing of trend of pile frame
On, pile hammer can be moved up and down along guide rail.Several piling machines disclosed above carry out reaming all without hole expansion function to pile foundation
When, in addition it is also necessary in addition reaming is carried out using reaming rig, operation is more bothered.
In addition, with the development of China's modernization construction, the high level in engineering construction is more and more with high-rise building, right
The requirement of the bearing capacity of pile foundation and construction technology also more and more higher.Single pile can be increased substantially to pile foundation enforcement reaming construction to hold
Power is carried, construction costs is saved, therefore pile foundation construction field occurs in that various pile foundation counter-boring techniques and corresponding equipment.Existing
Some pile foundation counter-boring techniques can be divided into rammer expansion, explosive expansion, manually digging hole base expanding and base expanding and reaming bit base expanding and base expanding etc. according to reaming principle.This
Reaming bit reaming mode relatively other reaming mode applied ranges in a little base-enlarging methods, reaming better quality, more advanced, accordingly
Ground, reaming bit reaming mainly have following three kinds of modes at present：Squeezed, bore and expand, rotary digging reaming (hydraulic pressure).
Squeezed technology is put into squeeze equipment, opens squeezed arm using hydraulic cylinder after the completion of conventional drilling, shape in hole
Become to expand branch, to plate-like is formed, then must rotate to an angle and squeezed again, so in the once squeezed arm of squeezed rear withdrawal
Plate-like enlarged cavity is formed after repeatedly.Unidirectional squeezed three troubles to recent years of squeezed mode both arms from the beginning are two-way squeezed
Bored concrete pile.Expansion technology is bored using improving on the drill bit of conventional reverse circulation slewing drilling machine so as to hole expansion function.Existing
It is all mechanical unfolding mode that some brills expands technology reaming bit, and common unfolding mode has bottom hole to press off to open two kinds with reversion
Mode.Bottom hole press off mode be reaming bit behind lower section to bottom hole, pressed using drilling tool own wt and top, by reamer
Head is pressed off, and carries out reaming in bottom hole.Reversion unfolding mode is that reaming bit blade when rotating forward draws in, passes through machinery side during reversion
Formula blade is opened, and can carry out reaming in specified hole depth.Rotary digging counter-boring techniques are represented as AM engineering method (rotary digging bottom-enlarging filling pile),
The technology results from Japan, after the completion of conventional straight hole pore-forming, using the AM engineering method Spiral digging machine equipped with reaming bit, uses hydraulic pressure control
Mode processed is opened reaming bit when specified hole depth is in rotation and realizes rotary digging reaming.Above-mentioned various counter-boring techniques reaming ability,
Certain defect is individually present in the stability and reliability of reaming and efficiency of construction.
In sum, need to be further improved the technique of existing rig and reaming pile driving construction.
Content of the invention
First technical problem to be solved by this invention is for above-mentioned state of the art, provides a kind of ream operation
Stable, reliable, the high and measured hydraulic pressure reaming circulation drilling machine of reaming matter of efficiency of construction.
The present invention solves the technical scheme adopted by above-mentioned first technical problem：The hydraulic pressure reaming circulation drilling machine, bag
Include owner's body and the mast on stake owner's body and mast supporting mechanism, it is characterised in that：Upper end in the mast
Portion is provided with the tap that the relative mast of energy is moved up and down, and being fixedly connected with the tap bottom can carry out liquid with tap
The hydraulic means of pressure transmission, be fixedly connected with the bottom of hydraulic means to carry out the brill of hydraulic coupling transmission with hydraulic means
Bar, is provided with the unit head that can be moved up and down and for driving drilling rod to rotate relative to mast, in institute in the bottom of the mast
The bottom for stating drilling rod is provided with the reaming bit that can carry out hydraulic pressure reaming under hydraulic means effect.
Preferably, described tap includes the mounting bracket on mast and the shell being fixed in mounting bracket,
The inside of the shell be provided with can opposite shell rotation rotary body, have on the side wall of shell fuel feed hole, oil outlet and
Mud hand-hole, is provided with oil inlet passage, oil discharge passage and slurry channel in the inside of the rotary body, described oil inlet passage with
Described fuel feed hole is connected, and described oil discharge passage is connected with described oil outlet, described slurry channel with described
Mud hand-hole is connected, the hydraulic means have the inside of stretching into the rotary body and with the oil inlet passage, fuel-displaced logical
The hydraulic tube that road is connected, the slurry channel is by the passage inside hydraulic means and the drilling rod intracavity inter-connection.Using
After above-mentioned attachment structure, the rotation physical efficiency opposite shell rotation of tap, and in rotary body rotary course, tap is except energy
Realize outside the function of mud input drilling rod, moreover it is possible to being delivered to hydraulic coupling in the hydraulic means below tap and and then passing
It is delivered to drilling rod.
Described reaming bit can have various structures, it is preferable that described reaming bit includes guide cylinder, stretches
Cylinder, upper connecting base, lower connecting base, reamer arm and apex point, the upper connecting base be fixed on the telescoping cylinder top and while with
Upper guide cylinder is mutually fixed, and the expansion link lower end of the telescoping cylinder is fixedly connected with described lower connecting base, and described reamer arm is extremely
Rare two, every reamer arm includes be hinged upper reamer arm and UR arm, the upper end of the upper reamer arm with described
Upper connecting base is hinged, and the lower end of the UR arm is hinged with described lower connecting base, and described apex point is arranged on lower company
The lower section of joint chair, the drilling rod are mutually fixed with upper guide cylinder, and the drilling rod have be fixedly connected with lower connecting base and described
The lower pull bar that can be moved up and down of hydraulic means effect.So, hydraulic means can drive expansion by driving pull bar just to move up and down
Hole arm opens or draws in.
Preferably, described drilling rod includes a kelly driven by the unit head and is connected under kelly
At least one driven drilling rod of side.
Drilling rod can have multiple different attachment structures, and described driven drilling rod at least includes the first driven drilling rod and
Two driven drilling rods, are coaxially arranged with first pull bar long together with the first driven drilling rod in the first driven drilling rod, driven second
Be coaxially arranged with drilling rod and the second pull bar that the second driven drilling rod is together long, the is had on the periphery wall of the first pull bar connection end
One annular groove, has the second annular groove on the periphery wall of the second pull bar connection end, in the first annular groove and
Be embedded with second ring groove respectively and be nested with, and the internal perisporium being nested with and the first pull bar and the second pull bar correspondence position outward
Perisporium contacts, and tightens in the periphery wall being nested with and is wrapped with outer adapter sleeve, the periphery wall of the outer adapter sleeve and first from
Free gap is left between the internal perisporium of dynamic drilling rod and the second driven drilling rod.Additionally, the company between kelly and driven drilling rod
Attachment structure between access node structure and above-mentioned driven drilling rod is identical.
In order that tap and unit head smoothly can be moved up and down, the top of the mast be provided with first pulley group and
Second pulley group, the first landing lifting rope being arranged with described first pulley group for lifting by crane the tap, described
Second pulley group on be arranged with the second landing lifting rope, be provided with described mast on the tap and unit head glide
Capable guiding slide bar.Second landing lifting rope is used for hanging drilling rod in stacks, hangs steel reinforcement cage during descending reinforcing cage, is also used for hanging conduit
Etc..
Second technical problem to be solved by this invention is for above-mentioned state of the art, provides one kind and can realize boring
Hole, reaming, borehole cleaning one, can carry out the expansion of the hydraulic pressure reaming circulation drilling machine in mud circulation and enlarged cavity nothing sediment in reaming
Hole pile constructing process.
The present invention solves the technical scheme adopted by above-mentioned second technical problem：A kind of hydraulic pressure reaming circulation drilling machine
Reaming pile constructing process, it is characterised in that comprise the steps：
(1), boring drill centering in place；
(2), straight hole is crept into design counterbore depth；
(3), apply the hydraulic pressure reaming circulation drilling machine to carry out base expanding and base expanding or Multi-section reaming in design attitude, and in the same of reaming
Shi Jinhang mud circulates borehole cleaning；
(4), hydraulic pressure reaming circulation drilling machine carries out a borehole cleaning；
(5), detection hole depth, aperture, enlarged footing cavity layer position and diameter；
(6), steel reinforcement cage is transferred after enlarged footing meets design requirement；
(7), secondary pile hole cleaning；Secondary pile hole cleaning is typically realized by transferring conduit；
(8), bottom hole sediment is determined；
(9), bottom hole sediment carries out underwater concrete pouring after determining and meeting design requirement
(10), hole-expanding pile, Multi-section reaming pile pile, maintenance.
Preferably, step (3) in base expanding and base expanding or Multi-section reaming specifically include and have the following steps：
1., when the reaming bit of rig reaches design counterbore depth, Unscrew reaming bit is to design angle；
2., rig digital control system Auto-matching drill bit rate of penetration and reaming speed, keep enlarged footing lateral layout angle
Constant and be drilled down into, until reaming bit is flared to design counter bore diameter；
3., keep diameter of ream bit constant and downward when aperture detection system is detected after enlarged footing reaches design requirement
0.3～0.4m of drilling；
4., reaming bit stops moving down, and slightly carries drilling rod upwards, and reaming bit is rotated in place carries out mud circulation cleaning
Hole；
5., borehole cleaning completes back rotation side and draws reaming bit in until all withdrawing, and reaming construction is completed.
Further preferably, the step (1) in boring drill using described hydraulic pressure reaming circulation drilling machine or other works
Journey stake machine.
Further preferably, before the centering in place of boring drill in the step (1), following steps are also specifically included：
A, smooth location；
B, the setting-out of stake position；
C, embedded casing.
Compared with prior art, it is an advantage of the current invention that：1st, drilling, reaming, borehole cleaning one are realized, and efficiency of construction is high；
2nd, by adopting hydraulically powered reaming bit, reaming effect is stable, reliable, efficiency high；3rd, mud can be carried out to follow during reaming
Ring borehole cleaning, nothing sediment in enlarged cavity, reaming quality is good；4th, reaming ability is strong, and maximum diameter of enlarged bore, can be old up to more than 2m
The stratum such as clay, Compact sandy-pebble layer, strong-weathered rock carry out reaming.
Description of the drawings
Fig. 1 is the structural representation of the embodiment of the present invention；
Fig. 2 is the structural representation of embodiment of the present invention tap；
Fig. 3 is the structure sectional view of tap shown in Fig. 2；
Fig. 4 is the structural representation of embodiment of the present invention reaming bit；
Fig. 5 is embodiment of the present invention drilling rod attachment structure schematic diagram；
Fig. 6 is the perspective exploded view of Fig. 5；
Fig. 7 is the sectional view of drilling rod attachment structure shown in Fig. 5；
Fig. 8 is the enlarged diagram of part A in Fig. 7；
Fig. 9 is the flow chart of reaming pile constructing process in the embodiment of the present invention.
Specific embodiment
The present invention is described in further detail below in conjunction with accompanying drawing embodiment.
As shown in figure 1, hydraulic pressure reaming circulation drilling machine (HRCR rig) in the present embodiment include stake owner body 1, mast 2,
Mast supporting mechanism 3, tap 4, hydraulic means 5, drilling rod, unit head 7, reaming bit 8, assembly pulley, landing lifting rope, track bottom
10 grade primary clustering of disk.The HRCR rig is configured with visual control system, can show real-time counterbore depth, counter bore diameter,
Reaming oil cylinder stroke, unit head rotary speed；Dynamic Announce reaming procedure；Each current of electric of monitoring rig etc., mechanical automation
Height, reduces labour demand and effectively reduces security incident probability of happening.
Wherein, crawler body 10 is arranged on 1 bottom of stake owner body, and mast 2 and mast supporting mechanism 3 are arranged on stake owner's body
On 1, tap 4 is installed in the upper end of mast 2 and the relative mast of energy moves up and down, and hydraulic means 5 is for being fixedly connected on water
The hydraulic cylinder of leading 4 bottoms is above-mentioned reaming oil cylinder, realizes hydraulic coupling transmission between tap 4 and hydraulic means 5.Drilling rod
The bottom of hydraulic means 5 is fixedly connected on, hydraulic coupling transmission between hydraulic means 5 and drilling rod, is realized, unit head 7 is arranged on mast
Simultaneously the relative mast 2 of energy moves up and down for 2 bottom, is provided with oil cylinder 21 on mast 2, and oil cylinder 21 can be driven on unit head 7
Lower movement.Drilling rod shown in Fig. 1 is kelly 6, and kelly 6 is driven by unit head 7 and actively bores through on unit head 7
Bar 6 is rotated, and reaming bit 8 is fixedly connected on the bottom of kelly 6.Certainly, during Specific construction, typically have many from
Dynamic drilling rod is connected to the lower section of kelly, and now, reaming bit 8 is installed in the bottom of the driven drilling rod of bottom, and equally exists
Hydraulic pressure reaming is realized in the presence of hydraulic means 5.
Assembly pulley is included installed in 2 top first pulley group 91 of mast and second pulley group 92, accordingly, landing lifting rope bag
Include around the first landing lifting rope 93 being located in first pulley group 91 and around the second landing lifting rope 94 being located in second pulley group 92,
In the present embodiment, landing lifting rope is all using steel wire rope and by hoist engine control.First landing lifting rope 93 be used for lifting by crane tap 4 to
Upper movement, as tap 4, hydraulic means 5 and drilling rod all link together, thus the first landing lifting rope 93 can drive drilling rod
Move up, the second landing lifting rope 94 is used for hanging drilling rod in stacks, hangs steel reinforcement cage during descending reinforcing cage, is also used for hanging conduit etc.
Deng.Tap 4 and unit head 7 rely on self gravitation and move down.Additionally, in order that tap 4 and unit head 7 are moved up and down
More smooth, the guiding slide bar 21 that faucet 4 and unit head are slided about 7 is provided with mast 2.
As shown in Figures 2 and 3, the tap 4 in the present embodiment includes mounting bracket 41 on mast 2 and is fixed on
Shell 42 in mounting bracket, is provided with the rotary body 43 of energy opposite shell rotation, in the side wall of shell 42 in the inside of shell 42
On have fuel feed hole 44, oil outlet 45 and mud hand-hole 46, be provided with oil inlet passage 47, oil discharge passage in the inside of rotary body 43
48 and slurry channel 49, oil inlet passage 47 is connected with fuel feed hole 44, and oil discharge passage 48 is connected with oil outlet 45, slurry channel
49 are connected with mud hand-hole 46, hydraulic means 5 have stretch into rotary body 43 inside and with oil inlet passage 47, oil discharge passage
48 hydraulic tubes being connected, slurry channel 49 is by the passage inside hydraulic means 5 and drilling rod intracavity inter-connection.Additionally, in order to
43 smooth rotation of rotary body is made, bearing 40 is installed between rotary body 43 and shell 42.
In the present embodiment, asphalt channel is as follows with the concrete connectivity structure of slurry channel：On the periphery wall of rotary body 43
First annular groove, the second cannelure and the 3rd cannelure is had, on the correspondence position of 42 internal perisporium of shell, has annular spread
The first groove, the second groove and the 3rd groove, it is the first circular ring that the first groove and first annular groove split constitute section
Shape passage 401, it is the second circular circular passage 402 that the second groove and the second cannelure split constitute section, the 3rd groove with
It is the 3rd circular circular passage 403 that 3rd cannelure split constitutes section.Fuel feed hole 44 passes through first annular passage 401 and enters
Oil logical 47 is connected, and oil outlet 45 is connected with oil discharge passage 48 by the second circular passage 402, and mud hand-hole 46 passes through the
Three circular passages 403 are connected with slurry channel 49.
When rig works, unit head 7 drives 43 synchronous axial system of rotary body of drilling rod rotation, hydraulic means 5 and tap 4,
The shell 42 of tap 4 is maintained static, and in drilling rod, hydraulic means 5 and 43 rotation process of rotary body, mud is from mud hand-hole
In 46 injection taps 4, and flow in drilling rod after flowing through slurry channel 49 and the passage inside hydraulic means 5 successively, and water
Tap 4 carries out hydraulic coupling transmission by oil inlet passage 47 and oil discharge passage 48 with hydraulic means 5, and hydraulic coupling is eventually transferred to reaming
Drill bit 8, realizes hydraulic pressure reaming by reaming bit 8.
As shown in figure 4, the reaming bit 8 in the present embodiment include guide cylinder 81, telescoping cylinder 82, upper connecting base 83,
Lower connecting base 84, reamer arm 85 and apex point 86, upper connecting base 83 be fixed on telescoping cylinder 82 top and while with upper guide cylinder 81
Mutually fix, 821 lower end of expansion link of telescoping cylinder 82 is fixedly connected with lower connecting base 84, and inside 821 internal and drilling rod of expansion link
It is connected.Reamer arm 85 includes be hinged upper reamer arm 851 and UR arm 852, the upper end of upper reamer arm 851 and upper connection
Seat 83 is hinged, and the lower end of UR arm 852 is hinged with lower connecting base 84, and apex point 86 is arranged on the lower section of lower connecting base 84,
Drilling rod bottom is mutually fixed with upper guide cylinder 81, and the pull bar of drilling rod is fixedly connected with lower connecting base 84, and pull bar is made in hydraulic means 5
With under move up and down.
In order that ream operation is more stable, reliable, the reamer arm 85 in the present embodiment is using four and along upper connection
The circumferentially-spaced of seat 83 and lower connecting base 84 is uniformly distributed, and is respectively mounted in the upper reamer arm 851 of reamer arm and UR arm 852
There is pick 853, and pick 853 is arranged on the lateral surface of upper reamer arm 851 and UR arm 852 and stretches out, 853 edge of pick
The length direction for reamer arm 851 and UR arm 852 is spaced apart, is also provided with pick on apex point 6.In addition, this reality
Apply the Counterboring apparatus in example to control the expansion angle of upper reamer arm 851 and UR arm 852 by controlling organization
System, such that it is able to according to ream operation need adjust counter bore diameter.
When Counterboring apparatus work, hydraulic means 5 drives the pull bar in drilling rod to move up, and pull bar drives 84 He of lower connecting base
Expansion link 821 is moved up, and then expands reamer arm 85, while reaming bit 8 rotates, reaming bit 8 carries out ream operation,
As reaming bit 8 carries out reaming by hydraulic-driven, reaming ability is strong.After reaming is finished, hydraulic means 5 drives pull bar downward
Mobile, pull bar drives lower connecting base 84 and expansion link 821 to move down, and then draws in reamer arm 85.
As shown in Fig. 5 to Fig. 8, the present embodiment is illustrated by taking the attachment structure between driven drilling rod as an example, and first is driven
The connection end of drilling rod 61 and the second driven drilling rod 62 all carries adpting flange 67, and is connected by bolt 68.First from
First pull bar 63 long together with the first driven drilling rod is coaxially arranged with dynamic drilling rod 61, is coaxially disposed in the second driven drilling rod 62
There are second pull bar 64 long together with the second driven drilling rod 62, the end face of 63 connection end of the first pull bar and 64 connection end of the second pull bar
End face is coordinated using male and fomale(M＆F).First annular groove 631 is had on the periphery wall of 63 connection end of the first pull bar, in the second pull bar
The second annular groove 641 is had on the periphery wall of 64 connection ends, is divided in first annular groove 631 and the second annular groove 641
It is not embedded with and 65 is nested with, and is nested with 65 internal perisporium and the first pull bar 63 and the periphery wall phase of 64 correspondence position of the second pull bar
Contact, tightens in the periphery wall for being nested with 65 and is wrapped with outer adapter sleeve 66, the periphery wall of outer adapter sleeve 66 and the first driven drilling rod 61
And second driven drilling rod 62 internal perisporium between leave free gap.Additionally, being fixed with first in the connection end of the first pull bar 63
Retainer ring 632, the first retainer ring 632 inner side positioned at first annular groove 631, and the first retainer ring 632 is driven with first
Free gap is left between the internal perisporium of drilling rod 61.The second retainer ring 642 is fixed with the connection end of the second pull bar 64, second is solid
Determine ring 642 and be located at the second annular groove 641 inner side, and the internal perisporium of the second retainer ring 642 and the second driven drilling rod 62 it
Between leave free gap.Using the first retainer ring 632 and the second retainer ring 642 purpose be in order to avoid the first pull bar 63 and
Radial displacement is produced while two pull bars 64 are moved axially.
Using after above-mentioned attachment structure between driven drilling rod, 63 connection end of the first pull bar and 64 connection end of the second pull bar pass through
It is nested with 65 to be connected, and outer by the outer adapter sleeves 66 of close-fitting to strengthen the first pull bar 63 and the further being nested with 65
Connection between two pull bars 64, and the first pull bar 63 after connecting and the second pull bar 64 can axially free shiftings in corresponding drilling rod
Dynamic, the attachment structure is not only simple in structure and is connected firmly, and improves reliability and the controllability of the transmission of reaming power, from
And improve the reaming quality of reaming bit.Attachment structure between kelly and driven drilling rod and above-mentioned attachment structure phase
With here does not launch description
As shown in figure 9, the reaming pile constructing process of the hydraulic pressure reaming circulation drilling machine in the present embodiment adopts following steps：
(1), boring drill centering in place；
(2), straight hole creeps into design counterbore depth, i.e. reaming bit and is drilled down under rounding state, and is protected using mud
Wall；
(3), apply HRCR rig base expanding and base expanding or Multi-section reaming to be carried out in design attitude, and carry out mud while reaming follow
Ring borehole cleaning；
(4), HRCR rig carries out a borehole cleaning；
(5), detection hole depth, aperture, enlarged footing cavity layer position and diameter；
(6), steel reinforcement cage is transferred after enlarged footing meets design requirement；
(7), secondary pile hole cleaning；Secondary pile hole cleaning is typically realized by transferring conduit；
(8), bottom hole sediment is determined；
(9), bottom hole sediment carries out underwater concrete pouring after determining and meeting design requirement；
(10), hole-expanding pile, Multi-section reaming pile pile, maintenance.
Wherein using the HRCR rig or Other Engineering stake machine, and can adopt such as before step is (1) in boring drill
Lower preliminary step：
A, smooth location；
B, the setting-out of stake position；
C, embedded casing.
In addition, in the present embodiment corresponding to step (3) can realize in reaming procedure mud circulate borehole cleaning the step of again may be used
To be decomposed into several sub-steps as follows：
1., when the reaming bit of rig reach design counterbore depth when Unscrew reaming bit to design angle；
2., rig digital control system Auto-matching drill bit rate of penetration and reaming speed, keep enlarged footing lateral layout angle
Constant and be drilled down into, until reaming bit is flared to design counter bore diameter；
3., keep diameter of ream bit constant and downward when aperture detection system is detected after enlarged footing reaches design requirement
0.3～0.4m of drilling；
4., reaming bit stops moving down, and slightly carries drilling rod upwards, and reaming bit is rotated in place carries out mud circulation cleaning
Hole；
5., borehole cleaning completes back rotation side and draws reaming bit in until all withdrawing, and reaming construction is completed.
If design pile body has multiple enlarged footings, draw reaming bit in and continue to be drilled down into, successively in different designs reaming
Depth carries out ream operation by said process, until completing the drilling construction of Multi-section reaming pile.
In sum, the HRCR rig in the present embodiment is all-hydraulic Novel drill, expansion, clear one pile-forming equipment, the HRCR
Rig can be widely applied to the pore-forming of the foundation piles such as skyscraper, bridge, harbour and reaming construction.HRCR rig reaming letter
Clean, reliable, efficient, after reaming, bearing capacity of single pile can improve 30～50%, significantly save construction costs, and economic benefit substantially, has
Have wide practical use.
Claims (9)
1. a kind of hydraulic pressure reaming circulation drilling machine, props up including stake owner's body (1) and the mast (2) on stake owner's body and mast
Support mechanism (3), it is characterised in that：The tap that the relative mast of energy is moved up and down is installed in the upper end of the mast (2)
(4), be fixedly connected with the tap (4) bottom to carry out the hydraulic means (5) of hydraulic coupling transmission with tap, in hydraulic pressure
The bottom of device (5) is fixedly connected with the drilling rod that can carry out hydraulic coupling transmission with hydraulic means, in the bottom of the mast (2)
The unit head (7) that can be moved up and down relative to mast and for driving drilling rod to rotate is installed, is provided with the bottom of the drilling rod
The reaming bit (8) of hydraulic pressure reaming can be carried out under hydraulic means (5) effect, and described tap (4) is included located at mast (2)
On mounting bracket (41) and the shell (42) being fixed in mounting bracket, being provided with the inside of the shell (42) can be relatively outer
The rotary body (43) of shell rotation, has fuel feed hole (44), oil outlet (45) and mud hand-hole on the side wall of shell (42)
(46), oil inlet passage (47), oil discharge passage (48) and slurry channel (49) are provided with the inside of the rotary body (43), described
Oil inlet passage (47) is connected with described fuel feed hole (44), and described oil discharge passage (48) is connected with described oil outlet (45)
Logical, described slurry channel (49) is connected with described mud hand-hole (46), and described hydraulic means (5) are described with stretching into
The inside of rotary body (43) the hydraulic tube being connected with the oil inlet passage (47), oil discharge passage (48), the slurry channel
(49) by the internal passage of hydraulic means (5) and the drilling rod intracavity inter-connection.
2. hydraulic pressure reaming circulation drilling machine according to claim 1, it is characterised in that：Described reaming bit (8) is included
Upper guide cylinder (81), telescoping cylinder (82), upper connecting base (83), lower connecting base (84), reamer arm (85) and apex point (86), described on
Connecting seat (83) is fixed on the top of the telescoping cylinder (82) and while is mutually fixed with upper guide cylinder (81), telescoping cylinder (82)
Expansion link (821) lower end be fixedly connected with described lower connecting base (84), described reamer arm (85) at least two, per bar
Reamer arm (85) includes to be hinged upper reamer arm (851) and UR arm (852), the upper end of upper reamer arm (851) and
Described upper connecting base (83) is hinged, and the lower end of UR arm (852) is hinged with described lower connecting base (84), institute
The apex point (86) that states installed in the lower section of lower connecting base (84), mutually fixed with upper guide cylinder (81), and the drilling rod by the drilling rod
There is the pull bar for being fixedly connected with lower connecting base (84) and moving up and down under the hydraulic means (5) effect.
3. hydraulic pressure reaming circulation drilling machine according to claim 1, it is characterised in that：Described drilling rod includes one by described
Kelly (6) and at least one driven drilling rod being connected to below kelly (6) that unit head (7) drives.
4. hydraulic pressure reaming circulation drilling machine according to claim 3, it is characterised in that：Described driven drilling rod is at least included
First driven drilling rod (61) and second driven drilling rod (62), are coaxially arranged with and the first driven brill in first driven drilling rod (61)
Together long the first pull bar (63) of bar, is coaxially arranged with long by the together with second driven drilling rod (62) in second driven drilling rod (62)
Two pull bars (64), have first annular groove (631) on the periphery wall of the first pull bar (63) connection end, in the second pull bar (64)
The second annular groove (641) is had on the periphery wall of connection end, in first annular groove (631) and the second annular groove
(641) it is embedded with respectively and is nested with (65), and is nested with internal perisporium and the first pull bar (63) and second pull bar (64) of (65)
The periphery wall of correspondence position contacts, and tightens in the periphery wall for being nested with (65) and is wrapped with outer adapter sleeve (66), described outer tight
Gu free gap is left between the periphery wall of set (66) and the internal perisporium of first driven drilling rod (61) and second driven drilling rod (62).
5. hydraulic pressure reaming circulation drilling machine according to claim 1, it is characterised in that：Install on the top of the mast (2)
There are first pulley group (91) and second pulley group (92), be arranged with for lifting by crane the water in described first pulley group (91)
The first landing lifting rope (93) of leading (4), is arranged with the second landing lifting rope (94), in institute in described second pulley group (92)
The mast (2) that states is provided with the guiding slide bar (21) for being slided for the tap (4) and unit head (7) up and down.
6. a kind of reaming pile constructing process of hydraulic pressure reaming circulation drilling machine as described in any claim in claim 1 to 5, its
It is characterised by comprising the steps：
(1), boring drill centering in place；
(2), straight hole is crept into design counterbore depth；
(3), apply the hydraulic pressure reaming circulation drilling machine base expanding and base expanding or Multi-section reaming to be carried out in design attitude, and enter while reaming
Row mud circulates borehole cleaning；
(4), hydraulic pressure reaming circulation drilling machine carries out a borehole cleaning；
(5), detection hole depth, aperture, enlarged footing cavity layer position and diameter；
(6), steel reinforcement cage is transferred after enlarged footing meets design requirement；
(7), secondary pile hole cleaning；
(8), bottom hole sediment is determined；
(9), bottom hole sediment carries out underwater concrete pouring after determining and meeting design requirement；
(10), hole-expanding pile, Multi-section reaming pile pile, maintenance.
7. reaming pile constructing process according to claim 6, it is characterised in that the step (3) in base expanding and base expanding or more piece expand
Hole specifically includes and has the following steps：
1., when the reaming bit of rig reaches design counterbore depth, Unscrew reaming bit is to design angle；
2., rig digital control system Auto-matching drill bit rate of penetration and reaming speed, keep enlarged footing lateral layout angle constant
And be drilled down into, until reaming bit is flared to design counter bore diameter；
3., keep diameter of ream bit constant and be drilled down into when aperture detection system is detected after enlarged footing reaches design requirement
0.3～0.4m；
4., reaming bit stops moving down, and slightly carries drilling rod upwards, and reaming bit is rotated in place carries out mud circulation borehole cleaning；
5., borehole cleaning completes back rotation side and draws reaming bit in until all withdrawing, and reaming construction is completed.
8. reaming pile constructing process according to claim 6, it is characterised in that the step (1) in boring drill adopt
Described hydraulic pressure reaming circulation drilling machine or Other Engineering stake machine.
9. reaming pile constructing process according to claim 6, it is characterised in that in place in step boring drill (1)
Following steps are also specifically included before centering：
A, smooth location；
B, the setting-out of stake position；
C, embedded casing.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510155922.4A CN104763328B (en) | 2015-04-02 | 2015-04-02 | A kind of hydraulic pressure reaming circulation drilling machine and its reaming pile constructing process |
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|---|---|---|---|
| CN201510155922.4A CN104763328B (en) | 2015-04-02 | 2015-04-02 | A kind of hydraulic pressure reaming circulation drilling machine and its reaming pile constructing process |
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| CN104763328B true CN104763328B (en) | 2017-03-08 |
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