CN107130601A - It is a kind of to improve device and restructuring bankrupt that pile crown abolishes efficiency - Google Patents
It is a kind of to improve device and restructuring bankrupt that pile crown abolishes efficiency Download PDFInfo
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- CN107130601A CN107130601A CN201710400069.7A CN201710400069A CN107130601A CN 107130601 A CN107130601 A CN 107130601A CN 201710400069 A CN201710400069 A CN 201710400069A CN 107130601 A CN107130601 A CN 107130601A
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- pile crown
- wire rope
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- steel wire
- pile
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D9/00—Removing sheet piles bulkheads, piles, mould-pipes or other moulds or parts thereof
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Piles And Underground Anchors (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
A kind of to improve device and restructuring bankrupt that pile crown abolishes efficiency, device includes pre-buried barrier assembly and lifting component, and pre-buried barrier assembly includes plastic film capicitor and is wrapped in live part pile foundation cage bar and the hydrophobicity heat preservation rock of sound detecting pipe；Lifting by crane component includes steel bracket and jack, steel bracket crossbeam is provided with steel wire rope alignment pin, jack is attached by the steel wire rope one through steel wire rope alignment pin with steel bracket, and jack is exerted a force by the steel wire rope two through HDPE plastic bellows to superfilled part.The present invention has separated bonding for reinforcing bar and concrete using hydrophobicity heat preservation rock parcel pile crown reinforcing bar, effectively raises the speed of pile crown reinforcing bar extraction；It is simple to operate using making steel bracket promoting or transferring pile crown by oneself, it is to avoid occur security incident during using truck crane promoting or transferring, save cost；Steel bracket can pack up wheel during promoting or transferring, not stress, and protect the safety of wheel, add the service life of steel bracket.
Description
Technical field
Technical field is abolished the present invention relates to pile crown, and in particular to a kind of raising pile crown abolishes device and the side of abolishing of efficiency
Method.
Background technology
, generally can a superfilled part at the top of pile foundation in order to ensure construction quality during bored pile construction.Treat
After the completion of excavation of foundation pit, by superfilled part concrete chisel removal.
During concrete chisel removal, traditional restructuring bankrupt can coordinate quartering hammer to abolish using air compressor machine.Such a method
Efficiency is low, it has not been convenient to construct, dangerous big；It can also pollute air simultaneously；Dust in shattering process is caused to workmen
Very big influence.After the completion of abolishing, in addition it is also necessary to which the large scale equipment such as truck crane, which coordinates, manually pulls out broken pile crown, is pulling out
Cheng Zhong, is generally by force to be pulled out pile crown using the hydraulic means of truck crane, the drawbacks of so doing is extremely to damage
The large arm and steel wire rope of truck crane, can cause the de- stock fracture of wire of steel wire rope after being used for multiple times；If truck crane is not supported simultaneously
It is firm, easily occur truck crane rollover event；Such a way will also result in certain destruction to pile foundation in itself simultaneously.
The content of the invention
Device and restructuring bankrupt that pile crown abolishes efficiency are improved it is an object of the invention to provide a kind of, current pile crown is solved and breaks
Except low construction efficiency, be inconvenient to construct, dangerous Datong District when can also pollute air the drawbacks of, greatly improve efficiency of construction, it is ensured that
The safety of workmen, while destruction will not in itself be produced to pile foundation.
To realize above-mentioned technical purpose, the present invention is adopted the following technical scheme that：
It is a kind of improve pile crown and abolish in the device of efficiency, the pile crown set steel reinforcement cage, its bottom is that live part, top are superfilled
The interface of part, live part and superfilled part is truncation surface, it is characterised in that：Including pre-buried barrier assembly and lifting group
Part, the pre-buried barrier assembly includes one group of HDPE plastic bellows being arranged horizontally on truncation surface in plane, and bag
Hydrophobicity heat preservation rock in pile foundation cage bar and sound detecting pipe is rolled in the steel reinforcement cage of live part；The lifting component includes treating
The steel bracket installed centered on pile crown and the jack on steel bracket are abolished, the steel bracket includes column, is fixed on
Horizontal rectangular frame at the top of column and the crossbeam being fixed in the middle of horizontal rectangular frame；The crossbeam is positioned provided with steel wire rope
Pin, the jack is attached by the steel wire rope one through steel wire rope alignment pin with steel bracket, while the jack is by wearing
The steel wire rope two for crossing HDPE plastic bellows exerts a force to superfilled part.
As the preferred technical solution of the present invention, the column bottom of the steel bracket is equipped with universal wheel, the universal wheel
Fixed by latch with column.
It is further preferred that the column bottom provided with least up and down two different heights connecting pin bores, be respectively on
Pin-and-hole and lower pin-and-hole；When latch is connected by lower pin-and-hole with universal wheel, universal wheel bottom contact ground, column bottom are remotely
Face, realizes steel bracket locomotive function；When latch is connected by upper pin-and-hole with universal wheel, universal wheel bottom is away from ground, column bottom
Portion contacts ground, realizes steel bracket fixing function.
It is further preferred that the pre-buried plane of the HDPE plastic bellows is located at more than truncation surface 5~15cm.
It is further preferred that the hydrophobicity heat preservation rock is fixed with pile foundation cage bar and sound detecting pipe by adhesive tape.
It is further preferred that the HDPE plastic bellows has 4, the concrete tumbling barrel around pile crown center is in groined type
Steel wire rope two is worn in arrangement, every HDPE plastic bellows；Its both sides termination is exposed independent from outside pile crown, and is carried out using adhesive tape
Closing.
It is further preferred that the length of the HDPE plastic bellows 5~15cm bigger than pile crown diameter.
It is further preferred that the steel wire rope one or steel wire rope two are through steel wire rope alignment pin or HDPE plastic bellows
When, protect steel wire rope not to be cut in contact portion flexible material of jumping a queue.
It is further preferred that the horizontal rectangular frame and crossbeam at the top of the column, column are 20# i-steel components,
It is to be welded to connect between each component；Diagonal brace is set between the beam body of column and horizontal rectangular frame to be strengthened；The column
Altitude range is 3.5m.
In addition, the present invention also provides the pile crown side of abolishing that a kind of device for abolishing efficiency using above-mentioned raising pile crown is carried out
Method, it is characterised in that comprise the following steps：
Step 1: fabrication of reinforcing cage：Foundation designs and produces pile crown steel reinforcement cage；
Step 2: the setting of HDPE plastic bellows；Confirm the live part of pile crown and superfilled part, interface is set to block
Face, horizontally disposed one group of HDPE plastic bellows on truncation surface；
Step 3: hydrophobicity heat preservation rock is wrapped up：Wrapped up in the steel reinforcement cage of pile crown live part on pile foundation cage bar and sound detecting pipe
Hydrophobicity heat preservation rock, pile foundation cage bar and sound detecting pipe are kept apart with concrete；
Step 4: concreting and excavation of foundation pit：Carry out pouring and excavation of foundation pit for pile crown concrete；
Step 5: steel bracket makes processing：Steel bracket is welded, is installed in steel bracket bottom and can be adjusted to working condition and inoperative
The universal wheel of state；
Step 6: jack is installed：Jack is located between steel bracket and pile crown, using the steel wire rope one through steel wire rope alignment pin with
Steel bracket is attached, while being exerted a force by the steel wire rope two through HDPE plastic bellows to superfilled part, in steel wire
The contact portion flexible material of jumping a queue of rope and structure protects steel wire rope not to be cut；
Step 7: pile crown abolishes preceding integrated regulation：Before jack force, position and the trend of adjustment steel wire rope one and steel wire rope two,
Ensure that force process is unobstructed；Dregs around pile foundation is cleaned out, pile foundation concrete is exposed, while finding pre-buried
HDPE plastic bellows, is enclosed, depth is pile foundation using abrasive wheel cutting machine in HDPE plastic bellows position along pile crown cutting one
Thickness of protection tier；
Step 8: pile crown is abolished：Jack force carries out pile crown and abolished；
Step 9: pile crown is transported：The part got off will be abolished to be cleared.
Compared with prior art, the technical advantages of the present invention are that：
1st, pile crown reinforcing bar is wrapped up using hydrophobicity heat preservation rock and has separated bonding for reinforcing bar and concrete, effectively raise pile crown
The speed that reinforcing bar is extracted；
2nd, HDPE plastic corrugated pipe, inside passes through steel wire rope promoting or transferring pile crown, promoting or transferring speed is accelerated, without the need for pile crown
Crushed.Reduce pollution；
3rd, using making steel bracket promoting or transferring pile crown by oneself, it is to avoid occur security incident during using truck crane promoting or transferring；Processing is only needed simultaneously
Simple steel bracket, it is not necessary to truck crane, it is simple to operate, save cost；
4th, steel bracket bottom employs telescopic universal wheel, is transported in transportation using wheel, accelerates speed；Carrying
During tune, wheel is packed up, not stressed, makes column stress, the safety of wheel is protected, the use longevity of steel bracket is added
Life.
Brief description of the drawings
By the detailed description made in conjunction with the following drawings, above-mentioned and/or other aspects of the invention and advantage will become
Become apparent from and be easier to understand, these accompanying drawings are schematical, are not intended to limit the present invention, wherein：
Fig. 1 is the work schematic perspective view for the device that raising pile crown of the present invention abolishes efficiency；
Fig. 2 is Fig. 1 front view；
Fig. 3 is pile crown structural representation of the present invention；
Fig. 4 is the cross-sectional view of A-A in Fig. 3；
Fig. 5 is the structural representation of support body of the present invention；
Fig. 6 is the in running order structural representation of part B universal wheel in Fig. 5；
Fig. 7 is structural representation of the part B universal wheel in off working state in Fig. 5.
Reference：The superfilled part of 1- live parts, 2-, 3-HDPE plastic film capicitors, 4- steel reinforcement cages, 5- concrete strings
Cylinder, 6- steel brackets, 6.1- columns, 6.2- crossbeams, 6.3- diagonal braces, 6.4- steel wire ropes alignment pin, 6.5- universal wheels, 6.6- latches,
6.7- connecting pin bores, 7- jacks, 8- steel wire ropes one, 9- steel wire ropes two, 10- pile foundations cage bar, 11- hydrophobicity heat preservation rocks.
Embodiment
Hereinafter, a kind of raising pile crown that the present invention is described with reference to the accompanying drawings abolishes the device and restructuring bankrupt of efficiency
Embodiment.
The embodiment recorded herein is the specific embodiment of the present invention, the design for illustrating the present invention,
It is explanatory and exemplary, should not be construed as the limitation to embodiment of the present invention and the scope of the invention.Except what is recorded herein
Implement exception, those skilled in the art can also be based on the application claims and specification disclosure of that using aobvious
The other technical schemes being clear to, these technical schemes include any obvious using making for the embodiment to recording herein
The technical scheme of substitutions and modifications.
The accompanying drawing of this specification is schematic diagram, aids in illustrating the design of the present invention, it is schematically indicated the shape of each several part
And its correlation.It note that between the structure of each part for the ease of clearly showing the embodiment of the present invention, each accompanying drawing
Do not drawn according to identical ratio.Identical reference marker is used to represent identical part.Below in conjunction with accompanying drawing to the present invention
Principle and feature be described, the given examples are served only to explain the present invention, is not intended to limit the scope of the present invention.
General thought
When pile foundation steel bar cage is processed, reinforcing bar and concrete isolating device are installed on steel reinforcement cage top, in the superfilled part 2 of pile crown with having
The position imitated between part 1 sets pre-buried HDPE plastic bellows.Treat that concreting completion, excavation of foundation pit are completed, possess broken
During stake condition, pass through the pre-buried HDPE plastic bellows of steel wire penetrating.Steel bracket 6 is processed simultaneously, is installed using the top of steel bracket 6
Jack 7, pile crown inactive portion is integrally extracted.
Technical scheme
Such as Fig. 1 and Fig. 2, improve in the device that pile crown abolishes efficiency, pile crown and set steel reinforcement cage 4, such as Fig. 3 and Fig. 4, its bottom is effective
Part 1, top are superfilled part 2, and the interface of live part 1 and superfilled part 2 is truncation surface, including pre-buried barrier assembly and
Component is lifted by crane, pre-buried barrier assembly includes one group of HDPE plastic bellows 3 being arranged horizontally on truncation surface in plane, and
Hydrophobicity heat preservation rock 11 in pile foundation cage bar 10 and sound detecting pipe is wrapped in the steel reinforcement cage 4 of live part 1；Lifting component includes
The steel bracket 6 installed centered on pile crown to be abolished and the jack 7 on steel bracket 6, such as Fig. 5, steel bracket 6 includes
Column 6.1, the horizontal rectangular frame being fixed at the top of column and the crossbeam 6.2 being fixed in the middle of horizontal rectangular frame；Crossbeam 6.2
Steel wire rope alignment pin 6.4 is provided with, jack 7 is connected by the steel wire rope 1 through steel wire rope alignment pin 6.4 and steel bracket 6
Connect, while jack 7 is exerted a force by the superfilled part 2 of 29 pairs of steel wire rope through HDPE plastic bellows 3.
After pile foundation steel bar cage is machined, certain limit in the every pile base cage bar 10 and sound detecting pipe at the top of steel reinforcement cage
Interior parcel layer of hydrophobic heat preservation rock 11, it is ensured that the parcel scope of hydrophobicity heat preservation rock 11 in casting concrete in future at
In superfilled part 2 and the binding site of live part 1.Insulation hydrophobicity heat preservation rock 11 and pile foundation cage bar 10, sound detecting pipe pass through glue
Band is fixed.It is simultaneously pre- in the binding site of superfilled part 2 and live part 1 upward 5~15cm, preferably 10cm of concrete
43,4 tube length 10cms bigger than Pile Diameter of Φ 50mmHDPE plastic film capicitors laterally arranged are buried, horizontal direction is around mixed
Solidifying soil tumbling barrel 5 is arranged into intersecting parallels.The pipe two ends of HDPE plastic bellows 3 are closed using adhesive tape, prevent from entering impurity.Ripple
Pipe transfers installation with steel reinforcement cage.Embodiment pile foundation diameter is calculated according to 2m, if diameter change, and steel bracket size can phase
It should adjust.
At the same time, a set of steel bracket 6 is processed in reinforcement yard, is made using 20# I-steel, between each component
To be welded to connect；The altitude range of column 6.1 is 3.5m, and steel bracket, the branch of steel bracket bottom 4 are welded into using 20# I-steel
Leg installs 4 sets of telescopic universal wheels 6.5.After machining, job site is transported to.Wherein, such as Fig. 6,7, the bottom of column 6.1 is set
There is the connecting pin bores 6.7 of two different heights above and below at least, respectively upper pin-and-hole and lower pin-and-hole；Latch 6.6 by lower pin-and-hole with
When universal wheel 6.5 is connected, steel bracket locomotive function is realized in the bottom of universal wheel 6.5 contact ground, the bottom of column 6.1 away from ground,
Such as Fig. 6；When latch 6.6 is connected by upper pin-and-hole with universal wheel 6.5, the bottom of universal wheel 6.5 connects away from ground, the bottom of column 6.1
Tread surface, realizes steel bracket fixing function, such as Fig. 7.
After the completion for the treatment of that pile foundation concreting completion, excavation of foundation pit completion, cushion cap blinding concrete are poured.By steel bracket 6
In decentralization to foundation ditch.
Before pile foundation promoting or transferring, first with manually the dregs around pile foundation is cleaned out, pile foundation concrete is exposed, looked for simultaneously
To pre-buried HDPE plastic bellows 3, the adhesive tape of pipe is released.Using abrasive wheel cutting machine in HDPE plastic corrugated conduit position
Enclosed along pile crown cutting one, depth is pile foundation thickness of protection tier.This ensure that the integrity degree of bottom pile foundation concrete is not
It is destroyed.
Steel bracket 6 is pushed into treat at promoting or transferring pile crown, universal wheel 6.5 is locked, column 6.1 is supported in the concrete of bottom
Bedding plane, universal wheel 6.5 does not stress now.HDPE plastic bellows 3 is passed through using steel wire rope 29.Set on the top of steel bracket 6
There is steel wire rope alignment pin 6.4 on crossbeam 6.2, crossbeam 6.2, steel wire rope 1 passes through steel wire rope alignment pin 6.4.Two parts steel wire rope
Drawknot is carried out using 10t jacks 7.After everything is ready, jack is tensed step by step using the slide fastener of jack 7, passes through the power of jack 7
Amount makes pile crown integrally extract.Then recover universal wheel 6.5, the pile crown of extraction is transported to foundation ditch specified location using steel bracket.Treat
After pile crown in whole foundation ditch is all extracted, integrally transported using transporting equipment.
When pile foundation steel bar cage is processed, reinforcing bar and concrete isolating device are installed on steel reinforcement cage top, it is invalid with having in pile crown
Position HDPE plastic bellows 3 between effect.Treat that concreting completion, excavation of foundation pit are completed, when possessing broken pile condition, pass through
Steel wire penetrating HDPE plastic bellows 3.Steel bracket is processed simultaneously, and jack is installed using steel bracket top, pile crown is integrally pulled out
Go out.
In construction, key technology point has：（1）Seepage does not occur for HDPE plastic bellows 3, it is ensured that HDPE plastic bellows 3
It is unimpeded；（2）Ensure not permeable slurry between insulation hydrophobicity heat preservation rock and reinforcing bar, while do not fasten excessively again；（3）Ensure steel bracket
Welding quality.
Calculating on cord strength：
Conventional steel wires rope is divided into two kinds of fibre core and steel core, and tensile strength is 1470MPa.Choose diameter 20mm steel wire ropes corresponding
Steel wire rope minimum breaking force is 173KN and 187KN.17.3t and 18.7t is corresponded to respectively.This is the pulling force of single wire rope, this
Technology use for 4, pulling force can reach 69.2t and 74.8t.Intensity can much meet and use needs.
It is used for wearing 4 steel wire ropes, the steel wire rope alignment pin at the top of steel bracket 6 in the HDPE plastic bellows 3 of pile foundation bottom
1 steel wire rope is worn in hole, the steel wire rope 1 on top and the steel wire rope 29 of bottom are connected by 10t jacks 7.Utilize jack 7
Pulling force breaks pile foundation, transports.
Steel wire rope 1 or steel wire rope 29 are when through steel wire rope alignment pin 6.4 or HDPE plastic bellows 3, in contact site
Flexible material of jumping a queue is divided to protect steel wire rope not to be cut.
The present invention abolishes the device of efficiency using pile crown is improved, and improves speed of application, it is ensured that construction quality, ensures
Operative's safety.Obtain owner's favorable comment consistent with operator's.
Presently preferred embodiments of the present invention is these are only, is not intended to limit the invention, it is all in the spirit and principles in the present invention
Within, any modification, equivalent substitution and improvements made etc. should be included in the scope of the protection.
Claims (10)
1. a kind of improve in the device that pile crown abolishes efficiency, the pile crown sets steel reinforcement cage（4）, its bottom is live part（1）, top
Portion is superfilled part（2）, live part（1）With superfilled part（2）Interface be truncation surface, it is characterised in that：Including pre-buried
Barrier assembly and lifting component, the pre-buried barrier assembly include the one group of HDPE modelings being arranged horizontally on truncation surface in plane
Expect bellows（3）, and it is wrapped in live part（1）Steel reinforcement cage（4）Interior pile foundation cage bar（10）With the hydrophobicity on sound detecting pipe
Heat preservation rock（11）；The lifting component includes the steel bracket installed centered on pile crown to be abolished（6）And installed in steel branch
Frame（6）On jack（7）, the steel bracket（6）Including column（6.1）, the horizontal rectangular frame, the Yi Jigu that are fixed at the top of column
It is scheduled on the crossbeam in the middle of horizontal rectangular frame（6.2）；The crossbeam（6.2）It is provided with steel wire rope alignment pin（6.4）, the jack
（7）By through steel wire rope alignment pin（6.4）Steel wire rope one（8）With steel bracket（6）It is attached, while the jack（7）
By through HDPE plastic bellows（3）Steel wire rope two（9）To superfilled part（2）Exerted a force.
2. a kind of raising pile crown according to claim 1 abolishes the device of efficiency, it is characterised in that：The steel bracket（6）
Column（6.1）Bottom is equipped with universal wheel（6.5）, the universal wheel（6.5）Pass through latch（6.6）Fixed with column.
3. a kind of raising pile crown according to claim 2 abolishes the device of efficiency, it is characterised in that：The column（6.1）
Bottom is provided with the connecting pin bores of two different heights above and below at least（6.7）, respectively go up pin-and-hole and lower pin-and-hole；Latch（6.6）It is logical
Cross down pin-and-hole and universal wheel（6.5）During connection, universal wheel（6.5）Bottom contact ground, column（6.1）Bottom is real away from ground
Existing steel bracket locomotive function；Latch（6.6）Pass through upper pin-and-hole and universal wheel（6.5）During connection, universal wheel（6.5）Bottom is remotely
Face, column（6.1）Bottom contacts ground, realizes steel bracket fixing function.
4. a kind of raising pile crown according to claim 1 abolishes the device of efficiency, it is characterised in that：The HDPE plastic ripple
Line pipe（3）Pre-buried plane be located at truncation surface more than 5~15cm.
5. a kind of raising pile crown according to claim 1 abolishes the device of efficiency, it is characterised in that：The hydrophobicity insulation
Rock wool（11）With pile foundation cage bar（10）Fixed with sound detecting pipe by adhesive tape.
6. a kind of raising pile crown according to claim 1 abolishes the device of efficiency, it is characterised in that：The HDPE plastic ripple
Line pipe（3）4 are had, the concrete tumbling barrel around pile crown center（5）Arranged in groined type, every HDPE plastic bellows（3）It is interior
Later stage wears steel wire rope two（9）；Its both sides termination is exposed independent from outside pile crown, and is closed using adhesive tape.
7. a kind of raising pile crown according to claim 1 abolishes the device of efficiency, it is characterised in that：The HDPE plastic ripple
Line pipe（3）Length 5~15cm bigger than pile crown diameter.
8. a kind of raising pile crown according to claim 1 abolishes the device of efficiency, it is characterised in that：The steel wire rope one
（8）Or steel wire rope two（9）Through steel wire rope alignment pin（6.4）Or HDPE plastic bellows（3）When, jumped a queue in contact portion soft
Soft material protects steel wire rope not to be cut.
9. a kind of raising pile crown according to claim 1 abolishes the device of efficiency, it is characterised in that：The column（6.1）、
Horizontal rectangular frame and crossbeam at the top of column（6.2）It is to be welded to connect between 20# i-steel components, each component；Column
（6.1）Diagonal brace is set between horizontal rectangular frame（6.3）Strengthen；The column（6.1）Altitude range be 3.5m.
10. a kind of improve the pile crown restructuring bankrupt that pile crown abolishes the device progress of efficiency using above-mentioned 1~9 any one, it is special
Levy and be, comprise the following steps：
Step 1: steel reinforcement cage（4）Make：Foundation designs and produces pile crown steel reinforcement cage（4）；
Step 2: HDPE plastic bellows（3）Setting：Confirm the live part of pile crown（1）With superfilled part（2）, will demarcate
Face is set to truncation surface, horizontally disposed one group of HDPE plastic bellows on truncation surface（3）,
Step 3: hydrophobicity heat preservation rock（11）Parcel：In pile crown live part（1）Steel reinforcement cage（4）Interior pile foundation cage bar（10）
With parcel hydrophobicity heat preservation rock on sound detecting pipe（11）, by pile foundation cage bar（10）Keep apart with sound detecting pipe with concrete；
Step 4: concreting and excavation of foundation pit：Carry out pouring and excavation of foundation pit for pile crown concrete；
Step 5: steel bracket（6）Make processing：Weld steel bracket（6）, steel bracket bottom install can be adjusted to working condition and
The universal wheel of off working state（6.5）；
Step 6: jack（7）Install：Jack（7）It is located at steel bracket（6）Between pile crown, using through steel wire rope alignment pin
（6.4）Steel wire rope one（8）With steel bracket（6）It is attached, while by through HDPE plastic bellows（3）Steel wire rope two
（9）To superfilled part（2）Exerted a force, protect steel wire rope not cut in steel wire rope and the contact portion flexible material of jumping a queue built
Cut；
Step 7: pile crown abolishes preceding integrated regulation：Jack（7）Before force, steel wire rope one is adjusted（8）With steel wire rope two（9）Position
Put and move towards, it is ensured that force process is unobstructed；Dregs around pile foundation is cleaned out, pile foundation concrete exposed, simultaneously
Find pre-buried HDPE plastic bellows（3）, using abrasive wheel cutting machine in HDPE plastic bellows（3）Cut along pile crown position
One circle, depth is pile foundation thickness of protection tier；
Step 8: pile crown is abolished：Jack（7）Force carries out pile crown and abolished；
Step 9: pile crown is transported：The part got off will be abolished to be cleared.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710400069.7A CN107130601B (en) | 2017-05-31 | 2017-05-31 | Device and method for improving pile head breaking efficiency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710400069.7A CN107130601B (en) | 2017-05-31 | 2017-05-31 | Device and method for improving pile head breaking efficiency |
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| Publication Number | Publication Date |
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| CN107130601A true CN107130601A (en) | 2017-09-05 |
| CN107130601B CN107130601B (en) | 2022-09-13 |
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| CN201710400069.7A Active CN107130601B (en) | 2017-05-31 | 2017-05-31 | Device and method for improving pile head breaking efficiency |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109235437A (en) * | 2018-10-30 | 2019-01-18 | 中铁北京工程局集团有限公司 | One kind abolishing pile crown method |
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| CN106400802A (en) * | 2016-08-24 | 2017-02-15 | 中交公局厦门工程有限公司 | Integral quick lifting method for pile head of drilled pile during pre-embedding and drilling-free ring-cutting |
| CN106400803A (en) * | 2016-10-31 | 2017-02-15 | 中国葛洲坝集团第六工程有限公司 | Integral cast-in-situ bored pile head breaking process |
| CN206941586U (en) * | 2017-05-31 | 2018-01-30 | 中建二局第二建筑工程有限公司 | A kind of device for improving pile crown and abolishing efficiency |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109235437A (en) * | 2018-10-30 | 2019-01-18 | 中铁北京工程局集团有限公司 | One kind abolishing pile crown method |
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