CN106836206A - Casing rotary digging bore forming method - Google Patents
Casing rotary digging bore forming method Download PDFInfo
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- CN106836206A CN106836206A CN201710206000.0A CN201710206000A CN106836206A CN 106836206 A CN106836206 A CN 106836206A CN 201710206000 A CN201710206000 A CN 201710206000A CN 106836206 A CN106836206 A CN 106836206A
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- Prior art keywords
- casing
- concrete
- forming method
- rotary digging
- conduit
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- 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
- E02D5/385—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds with removal of the outer mould-pipes
Abstract
The invention provides a kind of casing rotary digging bore forming method, including following work progress：Levelling of the land, unwrapping wire positioning, rig in place, soil layer drilling, steel pile casting construction, soil layer continue to creep into, drilling rock stratum, sediment cleaning, pore-forming examinations, rig displacement, steel reinforcement cage installations, conduit installation, concrete perfusion, complete extraction casing and pile detection with lifting casing, pour with pouring.Using Fully-mechanized construction, with more speed of application is fast, low cost, safe and reliable, steady quality.
Description
Technical field
The present invention relates to a kind of construction method, and in particular to a kind of casing rotary digging bore forming method.
Background technology
For this present situation, Chongqing at this stage in the urgent need to one kind can improve efficiency of construction, ensure construction quality, avoid applying
Fortification event, the rotary digging construction technology of mature.Pile foundation construction in back fill course high, using artificial digging pile security risk
Greatly；Constructed using conventional rotary drilling rig, there are the various quality problems caused by the reasons such as collapse hole in work progress；Using mixed
Solidifying soil inoculated method rotary digging construction, working procedure is complicated, and speed of application is slow, and cost is high.
The content of the invention
The problem to be solved in the present invention is directed to the above-mentioned deficiency in the presence of prior art and provides a kind of casing rotary digging
Bore forming method working procedure is simple to operation, using Fully-mechanized construction, with more speed of application is fast, low cost, safety
The features such as reliability, steady quality
To achieve the above object, present invention employs following technical scheme：A kind of casing rotary digging bore forming method, bag
Include following work progress：1), levelling of the land；2), unwrapping wire positioning；3), rig is in place；4), soil layer drilling；5), steel pile casting construction；
6), soil layer continues to creep into；7) rock stratum, is crept into；8), sediment cleaning；9), pore-forming is checked and accepted；10), rig displacement；11), steel reinforcement cage peace
Dress；12), conduit is installed；13), concrete perfusion；14), with pour with lifting casing；15), pour completion and extract casing；16), into
Stake detection.
Further, 4 ° are no more than when levelling of the land requirement multifunctional hydraulic rotary drilling rig is in place with plane inclination maximum, now
Ground bearing capacity is more than 250KPa.
Further, stake position unwrapping wire is by from entirety to local principle, sidewalk and bore position keep not less than 3 meters away from
From.
Further, bit central and pile center should align accurately after rig is in place, and control errors are in 2cm.
Further, steel pile casting construction includes that steel pile casting connection and steel pile casting are installed.
Further, a kind of casing rotary digging bore forming method is directed to sedimentary (generally in loose condition (of surface)), sand bed,
The caving grounds such as miscellaneous fill layer, gravel layer, mud and neutrality stratum use in drilling.
Further, when conduit is installed, if the concrete surface of perfusion apart from the water surface it is less big in the case of (such as less than 5m), go out
Existing catheter blockage concrete cannot be irrigated, and when concrete is not pre-hardening, should in time propose conduit, and being set in conduit bottom can be conveniently de-
The waterproof plug for falling, waterproof plug can use concrete for making, when practicality reinserts in concrete conduit, the built-in filling coagulation of conduit
Conduit is slightly carried after soil, waterproof plug is extruded using the deadweight of novel concrete, perfusion is then proceeded to.
Further, the rig includes drill bit and the calibrator (-ter) unit above the drill bit, the calibrator (-ter) unit bag
Laser emitting module, laser receiving module, controller, buzzer and minute surface are included, the laser emitting module and laser receive mould
The block correspondence drill bit, the laser emitting module transmitting laser simultaneously can receive mould by the mirror-reflection to the laser
Block, the laser emitting module, laser receiving module and buzzer connect the controller respectively.
Further, a diameter of 2cm of the minute surface.
Further, not jingle bell, the control when controller does not receive the signal that the laser receiving module receives
Device receives signal that the laser receiving module receives not jingle bell.
Compared to prior art, the present invention has the advantages that：The present invention uses a kind of casing rotary digging bore forming
Method, including following work progress：1), levelling of the land；2), unwrapping wire positioning；3), rig is in place；4), soil layer drilling；5), steel shield
Tube construction；6), soil layer continues to creep into；7) rock stratum, is crept into；8), sediment cleaning；9), pore-forming is checked and accepted；10), rig displacement；11)、
Steel reinforcement cage is installed；12), conduit is installed；13), concrete perfusion；14), with pour with lifting casing；15), pour completion and extract shield
Cylinder；16), various loose soil bed geological conditions are had good adaptability by pile detection, and working procedure is simply easily grasped
Make, using Fully-mechanized construction, with more speed of application is fast, low cost, safe and reliable, steady quality the features such as, construction and into
Quality of pile is not influenceed by soil layer and underground water etc., the advantage having a wide range of application.
Further advantage of the invention, target and feature embody part by following explanation, and part will also be by this
The research and practice of invention and be understood by the person skilled in the art.
Brief description of the drawings
Fig. 1 is construction process figure of the present invention.
Specific embodiment
In order that technological means, creation characteristic, reached purpose that the present invention is realized more understand and are apparent to effect,
The present invention is further elaborated with reference to the accompanying drawings and detailed description：
The present invention proposes a kind of casing rotary digging bore forming method, it is characterised in that including following work progress：
1), levelling of the land；Levelling of the land strictly is carried out before construction, accomplishes that draining is unobstructed, understood in rotary digging job area
On the ground, underground obstacle；
2), unwrapping wire positioning；Unwrapping wire positioning plans roadway by the position unwrapping wire that pile foundation is carried out from entirety to local principle
During line, make sidewalk that the distance not less than 3 meters is kept with bore position, in order to avoid influence hole wall stabilization；The riding position of rig is taken an examination
Aperture is unearthed the convenience cleared in considering drilling construction.The central point of stake position, after levelling of the land, is put a little before pore-forming with total powerstation,
Cross hairs is positioned, and carries out the protection of cross pile, and secondary detection is carried out with total powerstation after lower casing, after the pore-forming with hang steel reinforcement cage before
Detect again, make its error in code requirement, it is true to ensure a level；
3), rig is in place；The putting position of rig is considered as aperture in drilling construction and is unearthed the convenience cleared.Rig is travelled
To the hole position of construction, mast angle is adjusted, operate hoist engine, bit central is aligned with stake holes center, and be put into hole, adjusted
Rig perpendicularity parameter, makes drilling rod vertical, while somewhat lifting drilling tool, it is ensured that in drill bit cutting ring free floating hole；Rotary drilling rig
Chassis is telescopic automatic leveling device, and has instrument accurately to show electronical reading in operating room, when in drill bit align piles position
During heart line, each item data can be locked, without adjusting again；
4), soil layer drilling；The drilling bucket that will first be fetched earth during drilling is landed, and behaviour is zeroed out by the reset button on display
Make, record the home position of drill bit of drilling machine, now, the bar shaped post and numeral of the current location of display display drilling, operator
Member can monitor real work position, each drilling depth position and the hole depth position of drilling by display, so as to operate bore operation；
After drilling bucket is extruded full of boring mud, earth's surface is proposed, moved in circles；
5), steel pile casting construction；Steel pile casting is constructed includes that steel pile casting connection and steel pile casting are installed, and wherein steel pile casting connection evidence sets
Meter hole depth and ground survey data and determine steel pile casting length, are to be ready for steel pile casting during drilling construction, and steel pile casting spreading can be adopted
It is connected with, it would however also be possible to employ be welded to connect；Using being welded to connect the length that to steel pile casting can cut into needs, weldering
Welding quality need to be controlled when connecing, it is ensured that occur without problem in steel pile casting installation and withdrawal process；It is connected by screw bolts, structure letter
List, quick construction, be convenient to mount and dismount, efficiency it is higher, steel pile casting uses standard knot, it is easy to install spreading, for " in pore-forming casing
Follow-up retaining wall " for construction method construction speed faster, and all steel casing rotary digging bore forming technology of being more convenient for realizes that steel is protected
The recycling of cylinder, meets economy, the theory of green construction, is conducive to city to be wanted to the control of noise and to environmental protection
Ask；Steel pile casting is installed and is divided into five kinds of states, and the first is when drilling is after strongly weathered sand-rock is entered, you can start all steel casing
Installation, lower casing carries out lifting decentralization using crawler crane；Second for when steel pile casting is transferred loop wheel machine sling steel pile casting alignment
Aperture, it is ensured that steel pile casting center and hole center alignment, steel pile casting are slowly transferred；The third is if occurring inclined hole in boring procedure
Phenomenon, steel pile casting cannot transfer smoothly；Now it is accomplished by extracting casing, drill bit redrilling is descended again, it is ensured that drilling
Perpendicularity reach requirement, then the installation for carrying out steel pile casting；4th kind of steel pile casting is transferred during to rock stratum, and decentralization might have
It is a little difficult, can now utilize the symmetrical periphery in casing of Spiral digging machine drill bit to apply pressure, while slowly being pushed away back and forth using digging machine
Dynamic steel pile casting so that steel pile casting transfers to design attitude；5th kind runs into the geology for being particularly easy to collapse hole in boring procedure,
Merogenesis decentralization steel pile casting is accomplished by drilling process；Idiographic flow is illustrated below：1. for 2m diameter pile foundations, 2m is used first
Bit bore.(depth is determined according to collapse hole situation) after being bored into certain depth, with drill bit reaming to 2.1m, lower first segment steel shield
Cylinder shield, casing external diameter 2.1m, internal diameter 2.05m；2. after the installation of first segment steel pile casting, lower 2m drill bits carry out second drilling,
Drilling completes lower second section casing；Second section casing is first welded to connect or bolt connection with first segment, with rotation after connecting
The unit head of digging machine entangles casing and presses down, by the press-in of second section casing；3. after the press-in of second section casing, third time brill is carried out
Hole, repeats lower steel pile casting, and circulation construction is until enter rock stratum by that analogy；
6), soil layer continues to creep into；In drilling process, it is necessary to record drilling depth at any time, current bottom hole absolute altitude is calculated, when
When pore-forming bottom absolute altitude is up to design stake bottom absolute altitude shortly, you can stop drilling, and can same owner, management, survey etc. and to judge to work as
Preceding rock stratum situation.Bored using straight barrel type core tube, connect Spiral digging machine, stretched into after bottom hole gets out cylinder rock, manually with small-sized
Diameter 15cm water drillings get out test specimen stone, deliver to test in laboratory, determine whether to enter again according to whether rock strength reaches requirement
Row drilling, it is to avoid outdrill or few brill；By rig vertical control system in itself and drilling rod is checked into repeatedly in work progress
The perpendicularity in hole, it is desirable to which pore-forming perpendicularity deviation cannot be greater than the 1% of hole depth, it is ensured that hole quality；Need to rig feelings simultaneously
Condition is recorded, and is filled in time during rotary drilling rig drilling construction, and main fill substance is：Job, drilling depth, drilling speed
Degree, casing buried depth, each ground aspect absolute altitude and bottom hole absolute altitude；The table is responsible for filling in by special messenger, should there is handover record when relieving；
Geological condition record is conscientiously carried out in change and soil layer sampling according to rotary drilling rig drilling rate of penetration, is often located hole stake and be must be equipped with
Soil layer geological sample box, indicates each sample in the absolute altitude residing for the stake of hole and sample time in box；Drilled pile geology is with design not
Submitting a report asking for management or geological survey units scene director during symbol in time carries out live confirmation, determines whether that carrying out change sets by designing unit
Meter；After drilling reaches predetermined drilling depth, lift drilling rod, measurement hole depth and sediment thickness and made a record in table；
7) rock stratum, is crept into；Finally drilling rock stratum reaches designed elevation；
8), sediment cleaning；After drilling reaches projected depth, carried to away from bottom hole 0.1m~0.3m with Double bottom scarfing cinder drill bit
Place, is allowed to dally, and the sediment that will remain in bottom hole is suctioned out.Borehole cleaning is submitted a report asking for management and is inspected for acceptance after finishing, and measures hole depth,
Enter back into next process；
9), pore-forming is checked and accepted；After pore-forming, hole depth, aperture, hole wall perpendicularity, sediment thickness etc. are checked, it is accurate before detection
Get detection instrument, such as lining rope, plummet ready.Pore-forming bottom absolute altitude cannot be greater than ± 500mm and meet with design stake bottom absolute altitude error
The requirement at adjacent studs rigidity angle, drilling diameter cannot be less than design stake footpath, and the hole wall error of perpendicularity is not more than 1%, sediment thickness
Less than 50mm；
10), rig displacement；Can be simultaneously mobile using four angles of jack pair；
11), steel reinforcement cage is installed；A steel reinforcement cages are made using merogenesis, first according to design stake numbering difference preparing department steel splitting muscle
Cage, should be noted that joint is mutually staggered during making, used according to depth of pore forming after pore-forming and be solder-connected to together；When stake holes is super
When crossing 25m, safety during for the total quality and the lifting that ensure steel reinforcement cage is lifted in place at twice, and steel reinforcement cage is at twice in hole
Shaping is welded to connect again after mouth colligation overlap joint；Steel reinforcement cage ensures that cage bar position is accurate in processing, and stirrup spacing of putting more energy into will meet
Design requirement, putting more energy into spot welding of taken between stirrup and cage bar is fixed, and is noted to be welded during welding and is hindered cage bar；Cage bar and hoop weldering of putting more energy into
After being connected into entirety, then colligation tie hoop, should be noted that encrypted area and the spacing and length of non-encrypted area will meet design during colligation
It is required that；After the completion of whole fabrication of reinforcing cage of b, through self-inspection it is qualified after report supervising engineer to check accreditation, then with crane by reinforcing bar
Steel reinforcement cage in processing space is hung to aperture, and steel reinforcement cage should remove the soil and oil stain of adhesion before installing, it is ensured that reinforcing bar and concrete
Closely cohere；The setting of suspension centre is should be noted that during reinforcing bar cage hoisting, suspension centre must not be less than 4 in principle, and suspension centre is arranged on every section steel
Muscle cage most last layer is put more energy at hoop, is arranged symmetrically, and is coordinated using digging machine during lifting, it is to avoid the deformation of steel reinforcement cage；When steel reinforcement cage is long
When degree is less than 25m, overall time is lifted into aperture, slow decentralization after aligning；When length of reinforcing cage is more than 25m, at twice
, first be temporarily supported above lower section of time steel reinforcement cage on steel pile casting by lifting, then with crane will upper section time reinforcing bar cage hoisting it is in place, make upper and lower
Two-section time reinforcement cage skeleton is located at being connected on straight line, is again solder-connected to together upper and lower cage bar after fixing, whole
Report supervising engineer to check welding quality after body welding fabrication, it is qualified after slow decentralization steel reinforcement cage again；Fixed again after decentralization in place
Steel reinforcement cage, will adjust steel reinforcement cage center opposite direction according to the off normal situation of steel pile casting, so that steel reinforcement cage center and pile center's weight
Close；
12), conduit is installed；Conduit is the important tool for completing underwater gliders, and can conduit meet engineering and use
On requirement, it is very big to construction quality and speed of application relation；Underwater concrete conduit should carry out watertight, pressure-bearing and joint tension
Experiment；Conduit uses wall thickness to be welded into for the steel plate of 6mm is rolled.Conduit should be transferred between two parties, and conduit diameter is 300mm, conduit point
Section length is determined that standard knot length 2.7m topmost adjusts conduit using a few section short tubes of 0.5m~1.5m by technological requirement
Length, makes pipe away from bottom hole 300mm~500mm, using ring flange connection, union nut connection and quick socket connection；With
Rubber " O " type sealing ring, prevents leak, gas leakage；Storage bin hopper can be installed after conduit installation simultaneously, made of 6mm steel plates,
Not spillage, not hanging are asked, is sewed smooth thorough；Concrete (both beginning quantities) energy that should have enough capacity to ensure to pour into the first batch
Reach the pipe laying depth of requirement；
13), concrete perfusion；Before concrete perfusion, arm-pump prow is first in place, and confirms that the concrete shown up can expire
The amount of concrete of foot stake holes needs；The ball of same catheter diameter is put into conduit, hopper port is then closed, then by beginning quantity
Concrete is put into hopper, and hopper port is opened after filling, and allows concrete along in conduit ostium, the deadweight that ball passes through concrete
Pressure discharges the water in conduit, and concrete is smoothly filled into bottom hole.After hopper is opened, filling concrete should continuously enter
OK；In concrete perfusion, the apical side height of concrete should be surveyed with lining rope at any time；In casting process, conduit can before dismounting
Conduit is made pumping for 30cm, be conducive to the closely knit of concrete；But transverse movement must not be done, in order to avoid mud and sediment
It is mixed into concrete；When top of concrete highly exceedes conduit base opening height 6m, dismountable section conduit, before dismounting, Ying Xian
Determine top of concrete highly, calculate the accurate buried depth of conduit；The catheter length of dismounting should make a record, in any case,
After must assure that dismounting part conduit, depth of tremie degree answers ＞ 2m.To prevent on steel reinforcement cage from occurring during the filling concrete
Arch, rises that conduit is steady, and speed is slow, to prevent concrete impulse force excessive or hook strip steel reinforcement cage；
14), with pour with lifting casing；During concrete perfusion, gradually extract steel sleeve (casing shoe is stayed in soil)；
15), pour completion and extract casing；After pore-forming acceptance(check), after fabrication of reinforcing cage, installation, acceptance(check), pouring
In Concrete, the apical side height of concrete, in 4m or so, can rise and pull out casing, during protective casing lifting away from casing base opening height
Risen using crane and pulled out；If had any problem during crane pull steel protective-cylinder, occur pulling out motionless situation, then extracted using drawbench.
Drawbench is enclosed within steel pile casting, is shelved on the ground of the smooth compacting in steel pile casting side, extracted casing using drawbench, tube drawing
The uplift force of machine about 3000KN, stroke 1m, while coordinating using loop wheel machine, reach the purpose for extracting casing；Casing should with pour with
Pull out, disposable rising is pulled out after the completion of forbidding whole amount of concrete to pour；Measurement and record height are should be noted that during protective casing lifting, it is ensured that rise
Pull out rear top of concrete mouth under casing and cannot be less than 2m；Concreting is completed, and steel pile casting is disposably all extracted, and is extracted
Casing take apart or lengthen according to the steel pile casting length that next pile base needs, clean out, prepare recycle；
16), last pile detection；
Used as specific embodiment, levelling of the land requirement multifunctional hydraulic rotary drilling rig does not surpass when in place with plane inclination maximum
4 ° are crossed, field ground bearing capacity is more than 250KPa.
Used as specific embodiment, bit central and pile center should align accurately after rig is in place, and control errors are in 2cm.
As specific embodiment, determine that one decides whether to be protected with steel pile casting by theoretical calculation and numerical simulation
The critical value of the soil parameter of wall, to reduce construction cost, rather than blindly all drillings all with whole steel pile casting retaining wall；
The maximum drilling that the critical altitude under wherein different soil properties, damaged deformation reference value are drawn through experiment, is not required to steel pile casting supporting is deep,
And be drilled with required steel pile casting supporting depth under different depth the results are shown in Table 1-1；
Table 1-1 differences soil property, aperture and steel pile casting consumption under depth
Critical slope langth state maximum distortion obtained by excavation of foundation pit calculates different soil properties, aperture and depth as reference value
Under steel pile casting consumption；More closely knit soil property, the maximum drilling depth that it is not required to casing is then deeper, and the average hole depth of soft clay is about
15m, middle stiff clay reaches 41m, and stiff clay is then more than 70m；Pore size is also significant impact factor, and aperture is smaller, its
Circular arch effect is more notable, under identical soil property, the maximum hole depth that 1.2m boreholes are not required to casing be 2m and 3m boreholes 2~
3 times；When drilling depth is not required to the maximum hole depth of casing more than it, steel pile casting length is added generally left less than drilling depth 3m
The right side, shows certain regularity, it is believed that now drilling depth is big, and the deformation of hole wall mostlys come from the release of crustal stress, if
Casing is farther apart (＞ 3m) with drilling end, and the constraint of drilling front end portion is weaker, and the deformation for causing hole wall to occur is big；With soft clay
It is drilled with matter as a example by 30m gun drillings, when the steel pile casting length of supporting is 26m and 27m, corresponding maximum horizontal displacement is respectively
249mm and 7.4mm, gap is obvious；
The present invention chooses the conventional drilling of three classes from three kinds of representative soil properties (soft clay, middle stiff clay and stiff clay)
(1.2m, 2m and 3m aperture), have studied it is anhydrous or under comprising only a small amount of water condition different soil properties and depth to steel pile casting rotary digging
The influence of construction technology；By FLAC-3D software two and three dimensions numerical analyses, obtained critical altitude under different soil properties,
Damaged deformation reference value, the maximum drilling for being not required to steel pile casting supporting are deep and be drilled with required steel pile casting supporting depth under different depth
Degree；Show that soil property is better, the critical altitude of its excavation of foundation pit is higher；When critical altitude is little (≤10m), during its destruction most
Large deformation increases and reduces with foundation depth；When critical altitude is larger (＞ 15m), as crustal stress increases, lotus after excavation of foundation pit
Carry and discharge more, its deformation becomes apparent from, and maximum displacement during critical slope langth will increase and increase with foundation depth；More closely knit soil
Matter, the maximum drilling depth that it is not required to casing is then deeper, and the average hole depth about 15m of soft clay, middle stiff clay reaches 41m, and hard
Clay is then more than 70m；The size in aperture is also the notable factor for influenceing drilling depth, and aperture is smaller, and its circular arch effect is more notable.
Under identical soil property, the maximum hole depth that 1.2m boreholes are not required to casing is 2~3 times of 2m and 3m boreholes；Work as drilling depth
When the maximum hole depth of casing is not required to more than it, steel pile casting length is added generally less than drilling depth 3m or so, show certain
Regularity.Think that now drilling depth is big, the deformation of hole wall mostlys come from the release of crustal stress, if casing and drilling end
Farther apart (＞ 3m), drilling front end portion constraint is weaker, and the deformation for causing hole wall to occur is big；So a kind of casing rotary digging into
It is unstable that pile construction method is directed to sedimentary (generally in loose condition (of surface)), sand bed, miscellaneous fill layer, gravel layer, mud etc.
Stratum and neutrality stratum use in drilling.
As specific embodiment, when conduit is installed, if the concrete surface of perfusion apart from the water surface it is less big in the case of it is (such as small
In 5m), catheter blockage concrete occur cannot irrigate, and when concrete is not pre-hardening, should in time propose conduit, be set in conduit bottom
The waterproof plug that can conveniently come off, can directly be enclosed within the end of conduit with sleeve, and waterproof plug is arranged on sleeve again then, prevent
Water plug can use concrete for making, and conduit is reinserted in concrete, conduit slightly be carried after the built-in filling concrete of conduit, using new
The deadweight of concrete extrudes waterproof plug, then proceedes to perfusion.
Used as specific embodiment, the rig includes drill bit and the calibrator (-ter) unit above the drill bit, the school
Quasi- equipment include laser emitting module, laser receiving module, controller, buzzer and minute surface, the laser emitting module and swash
The light receiving module correspondence drill bit, the laser emitting module transmitting laser simultaneously can give the laser by the mirror-reflection
Receiving module, the laser emitting module, laser receiving module and buzzer connect the controller respectively, and the minute surface is put
In the center of the stake holes for needing construction, the drill bit movement of the rig is operated, when swashing that the laser emitting module sends
Light is not mapped to when on the minute surface, and now the laser receiving module does not receive the signal of reflection, and the controller is given
The buzzer sending signal not jingle bell, when the drill bit moves to the minute surface top, the now laser emitting module
To the laser receiving module when laser of transmission is mapped on the minute surface and by the mirror-reflection, the laser receives mould
Block conveys information to the controller after receiving signal, and the controller controls the buzzer jingle bell to remind after receiving signal
Bit location calibration described in workmen, can start construction, be then shut off the placing installation, and taking the minute surface away just can be with
Start to bore stake holes.
As specific embodiment, determined according to construction method, bit central and pile center should align after the rig is in place
Accurately, control errors are in 2cm, so a diameter of 2cm of the minute surface.
As specific embodiment, not jingle bell when the controller does not receive the signal that the laser receiving module receives,
The controller receives signal that the laser receiving module receives not jingle bell.
Finally illustrate, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although with reference to compared with
Good embodiment has been described in detail to the present invention, it will be understood by those within the art that, can be to skill of the invention
Art scheme is modified or equivalent, and without deviating from the objective and scope of technical solution of the present invention, it all should cover at this
In the middle of the right of invention.
Claims (10)
1. a kind of casing rotary digging bore forming method, it is characterised in that including following work progress：1), levelling of the land；2), put
Line is positioned；3), rig is in place；4), soil layer drilling；5), steel pile casting construction；6), soil layer continues to creep into；7) rock stratum, is crept into；8)、
Sediment is cleared up；9), pore-forming is checked and accepted；10), rig displacement；11), steel reinforcement cage is installed；12), conduit is installed；13), concrete perfusion；
14), with pour with lifting casing；15), pour completion and extract casing；16), pile detection.
2. a kind of casing rotary digging bore forming method according to claim 1, it is characterised in that levelling of the land requirement hydraulic pressure is more
4 ° are no more than when function rotary drilling rig is in place with plane inclination maximum, field ground bearing capacity is more than 250KPa.
3. a kind of casing rotary digging bore forming method according to claim 1, it is characterised in that stake position unwrapping wire press from entirety to
Local principle, sidewalk keeps the distance not less than 3 meters with bore position.
4. a kind of casing rotary digging bore forming method according to claim 1, it is characterised in that bit central after rig is in place
Should be aligned accurately with pile center, control errors are in 2cm.
5. a kind of casing rotary digging bore forming method according to claim 1, it is characterised in that steel pile casting construction includes that steel is protected
Cylinder connection and steel pile casting are installed.
6. a kind of casing rotary digging bore forming method according to claim 1, it is characterised in that a kind of casing rotary digging into
It is unstable that pile construction method is directed to sedimentary (generally in loose condition (of surface)), sand bed, miscellaneous fill layer, gravel layer, mud etc.
Stratum and neutrality stratum use in drilling.
7. a kind of casing rotary digging bore forming method according to claim 1, it is characterised in that when conduit is installed, if perfusion
Concrete surface apart from the water surface it is less big in the case of (such as less than 5m), catheter blockage concrete occur cannot irrigate, concrete
Not during initial set, conduit should be in time proposed, the waterproof plug that can conveniently come off is set in conduit bottom, waterproof plug can use concrete system
Make, when practicality reinserts in concrete conduit, conduit is slightly carried after the built-in filling concrete of conduit, using the deadweight of novel concrete
Waterproof plug is extruded, perfusion is then proceeded to.
8. a kind of casing rotary digging bore forming method according to claim 1, it is characterised in that：The rig include drill bit and
Calibrator (-ter) unit above the drill bit, the calibrator (-ter) unit includes laser emitting module, laser receiving module, control
Device, buzzer and minute surface, the laser emitting module drill bit corresponding with laser receiving module, the laser emitting module hair
Penetrate laser and can by the mirror-reflection to the laser receiving module, the laser emitting module, laser receiving module and
Buzzer connects the controller respectively.
9. a kind of casing rotary digging bore forming method according to claim 8, it is characterised in that：The a diameter of 2cm of minute surface.
10. a kind of casing rotary digging bore forming method according to claim 8, it is characterised in that：The controller is not received
Not jingle bell during the signal received to the laser receiving module, the controller receives the signal that the laser receiving module is received
Not jingle bell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710206000.0A CN106836206A (en) | 2017-03-30 | 2017-03-30 | Casing rotary digging bore forming method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710206000.0A CN106836206A (en) | 2017-03-30 | 2017-03-30 | Casing rotary digging bore forming method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106836206A true CN106836206A (en) | 2017-06-13 |
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Cited By (10)
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| CN107386276A (en) * | 2017-07-20 | 2017-11-24 | 广州市建筑科学研究院新技术开发中心有限公司 | A kind of construction method of soft layer super-long and large-diameter bored piles |
| CN107503344A (en) * | 2017-08-01 | 2017-12-22 | 石家庄市道桥管理处 | The construction method of turnover type merogenesis steel pile casting retaining wall manually digging hole filling pile |
| CN108316289A (en) * | 2018-04-02 | 2018-07-24 | 中建四局第五建筑工程有限公司 | Big grain size shiver stone Gao Tian area's pile foundation fast pore-creating structures and its construction technology |
| CN108457267A (en) * | 2018-02-12 | 2018-08-28 | 中铁十八局集团有限公司 | A kind of basic forming hole method of railway sound barrier stake |
| CN111236220A (en) * | 2020-01-19 | 2020-06-05 | 中交第三航务工程局有限公司江苏分公司 | Construction process of punching cast-in-place pile of mixed foundation in sea-filling area |
| CN111305195A (en) * | 2019-09-30 | 2020-06-19 | 四川公路桥梁建设集团有限公司 | Construction method of trestle steel pipe pile foundation in sand gravel |
| CN112252332A (en) * | 2020-10-11 | 2021-01-22 | 中铁隧道局集团有限公司 | Grooving construction method for underground diaphragm wall of ultra-deep shaft |
| CN113502810A (en) * | 2021-07-01 | 2021-10-15 | 中铁一局集团(广州)建设工程有限公司 | Construction method of deep hole pile in complex geology |
| CN113515654A (en) * | 2021-04-30 | 2021-10-19 | 中冶建工集团有限公司 | Pile foundation construction parameter visualization processing method and device based on building information modeling |
| CN113653068A (en) * | 2021-09-08 | 2021-11-16 | 中建八局第二建设有限公司 | Construction method of deep foundation pit support based on upper soft and lower hard rock stratum |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107386276A (en) * | 2017-07-20 | 2017-11-24 | 广州市建筑科学研究院新技术开发中心有限公司 | A kind of construction method of soft layer super-long and large-diameter bored piles |
| CN107503344A (en) * | 2017-08-01 | 2017-12-22 | 石家庄市道桥管理处 | The construction method of turnover type merogenesis steel pile casting retaining wall manually digging hole filling pile |
| CN108457267A (en) * | 2018-02-12 | 2018-08-28 | 中铁十八局集团有限公司 | A kind of basic forming hole method of railway sound barrier stake |
| CN108316289A (en) * | 2018-04-02 | 2018-07-24 | 中建四局第五建筑工程有限公司 | Big grain size shiver stone Gao Tian area's pile foundation fast pore-creating structures and its construction technology |
| CN111305195A (en) * | 2019-09-30 | 2020-06-19 | 四川公路桥梁建设集团有限公司 | Construction method of trestle steel pipe pile foundation in sand gravel |
| CN111236220A (en) * | 2020-01-19 | 2020-06-05 | 中交第三航务工程局有限公司江苏分公司 | Construction process of punching cast-in-place pile of mixed foundation in sea-filling area |
| CN112252332A (en) * | 2020-10-11 | 2021-01-22 | 中铁隧道局集团有限公司 | Grooving construction method for underground diaphragm wall of ultra-deep shaft |
| CN113515654A (en) * | 2021-04-30 | 2021-10-19 | 中冶建工集团有限公司 | Pile foundation construction parameter visualization processing method and device based on building information modeling |
| CN113502810A (en) * | 2021-07-01 | 2021-10-15 | 中铁一局集团(广州)建设工程有限公司 | Construction method of deep hole pile in complex geology |
| CN113653068A (en) * | 2021-09-08 | 2021-11-16 | 中建八局第二建设有限公司 | Construction method of deep foundation pit support based on upper soft and lower hard rock stratum |
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Application publication date: 20170613 |