CN106592591A - Drilling pile head overall removal construction method - Google Patents
Drilling pile head overall removal construction method Download PDFInfo
- Publication number
- CN106592591A CN106592591A CN201710059213.5A CN201710059213A CN106592591A CN 106592591 A CN106592591 A CN 106592591A CN 201710059213 A CN201710059213 A CN 201710059213A CN 106592591 A CN106592591 A CN 106592591A
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- Prior art keywords
- pile
- pile crown
- drilled
- construction method
- crown
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Classifications
-
- 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
-
- 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
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- Engineering & Computer Science (AREA)
- Structural Engineering (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)
- Piles And Underground Anchors (AREA)
Abstract
The invention provides a drilling pile head overall removal construction method. The method comprises the following steps: a compound loosening sleeve is mounted in a pile head reinforcement position of a reinforcement cage, and a cut hoop is buried; a steel wire rope is reserved at the end of the cut hoop; the reinforcement cage is put in a foundation pit; and after the reinforcement cage is totally in place, concrete is cast to form a drilling hole after concealed acceptance. A bearing platform foundation pit is excavated to expose a pile head; the steel wire rope is used for driving to pull out the cut hoop to form a lap of groove; a hole is drilled in the groove to form a cut pile weak surface; a separation wedge is adopted to insert in the drilling hole in the groove; under knocking of external force, the pile head is separated from a pile body; on the side wall of the pile head, four holes are drilled along the pile head, and steel chisels are inserted in the holes; the steel chisels are hung with the steel wire rope; and the pile head is totally lifted out of the foundation pit by a crane. In the embodiment, the pile head removal method is changed from traditional manual removal and removal through manual operation assisted by small machinery to mechanical lifting, so that the construction speed is largely accelerated, and the labor intensity is reduced.
Description
Technical field
The invention belongs to technical field of building construction, specifically, the present invention relates to a kind of drilled pile pile crown is integrally abolished
Construction method.
Background technology
With the development of national economy, real estate has obtained rapidly developing, and in technical field of building construction, drilling
Bored concrete pile is because of its reliable in quality, bottom strong adaptability, in being broadly applied high building project.And the brill of skyscraper
Hole stake has diameter big, the characteristics of superfilled many, therefore, the pile crown of large diameter pile foundation abolishes always one difficult problem.Present engineering
In construction, also have been used up substantially it is traditional manually abolish or human assistance small-sized machine is abolished, expend substantial amounts of manpower and materials,
It is big to pile quality, pile body reinforcing bar damage and speed is very slow, and efficiently applying required by present infrastructure development project
Work speed is not matched that.
The content of the invention
The present invention proposes a kind of drilled pile pile crown entirety breaking construction method, bag for the disadvantages mentioned above of existing mode
Include following steps：
After the completion of reinforcing bar colligation, steel reinforcement cage is formed, compound de- pine set is installed in the pile crown reinforcement location of steel reinforcement cage, and in stake
Position at top mark high above 10cm, it is pre-buried to block hoop around stake Monday circle, block the reserved steel wire rope in hoop termination；
Laid using lifting, steel reinforcement cage is put in foundation ditch, Jing concealment acceptances are qualified laggard after steel reinforcement cage is all in place
Row concreting, forms drilled pile；
Reach after 70% Deng drilled pile intensity, excavate cushion cap foundation ditch, expose pile crown, and extracted using steel wire rope drive
Hoop is blocked, one is formed and is enclosed groove；
Using rig, drill along vertical pile body direction in a groove, formed and cut stake plane of weakness, using separation chock
In drilling in insertion groove under the percussion of external force, pile crown is set to separate with pile body；
On the wall of pile crown side, 4 holes are made a call to along on the diametric cross of pile crown, and drill rod is inserted in 4 holes, will
Drill rod hangs up properly steel wire rope, and pile crown is integrally hung out foundation ditch using loop wheel machine.
Preferably, it is combined de- pine set to be mainly disposed at pile crown, and in order to ensure the separation of later stage pile crown, is combined de- pine
Cover into pile body 5-10cm.
Preferably, compound de- pine is applied mechanically rubber band and tightens, it is ensured that it does not occur vibration, and its position is fixed.
Preferably, be combined de- pine set to be prepared from using flexible plastic pipe, so as to ensure it in filling concrete, not by
Concrete squeezes flat failure.
Preferably, it is combined the diameter 2-5mm bigger than the diameter of covered pile crown reinforcing bar of de- pine set, it is ensured that compound de- pine set and stake
Head reinforcing bar is separated.
Preferably, it is described to be laid using lifting, the steel reinforcement cage is put in the step in foundation ditch, should be noted compound de- pine
Cover and block hoop not to be destroyed.
Preferably, waiting drilled pile intensity to reach after 70%, cushion cap foundation ditch is excavated, the step of expose pile crown
In, the pile crown reinforcing bar being exposed at outside pile crown must be protected, it is impossible to damaged or bent, and the entirety that can otherwise affect whole pile crown is broken
Remove.
Preferably, the employing rig, drills in a groove along vertical pile body direction, is formed and cuts stake plane of weakness
In step, drilling depth only needs to reach the 1/5 of a footpath, in same level, drills 8 along stake diametric(al), is formed
Cut stake plane of weakness.
Preferably, it is described using separating in the drilling that chock inserts in the groove under the percussion of external force, make pile crown with
In the step of pile body is separated, during chock insertion drilling will be separated, and tapped using external force, until drill hole pile crown and pile body
It is kept completely separate, meanwhile, enclosed using hydraulic test horizontal direction top chisel one, detached pile crown is rocked, it is ensured that pile crown and stake
Head reinforcing bar and pile body are kept completely separate.
Preferably, rig is such as pneumatic pick.
In embodiments of the invention, by by pile crown restructuring bankrupt by it is traditional manually abolish, human assistance small-sized machine
Abolish and be changed to mechanical hoisting, substantially increase speed of application, reduce operation labor intensity, employing voluntarily develop it is compound de-
Pine set, simple structure is cheap, remove than traditional artificial chisel or miniature blasting construction method, more can guarantee that construction quality,
And construction noise and dust pollution are reduced, be conducive to environmental conservation, great popularization.
The additional aspect of the present invention and advantage will be set forth in part in the description, and these will become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Description of the drawings
The above-mentioned and/or additional aspect of the present invention and advantage will become from the following description of the accompanying drawings of embodiments
It is substantially and easy to understand, wherein：
Fig. 1 is the schematic flow sheet of a drilled pile pile crown entirety breaking construction method wherein embodiment of the present invention.
Fig. 2 is that the installation pile crown reinforcing bar in a drilled pile pile crown entirety breaking construction method wherein embodiment of the present invention is combined
De- pine set schematic diagram.
Fig. 3 is that the formation section stake plane of weakness in a drilled pile pile crown entirety breaking construction method wherein embodiment of the present invention shows
It is intended to.
Fig. 4 is drilling, installation lifting use in a drilled pile pile crown entirety breaking construction method wherein embodiment of the present invention
Drill rod and lifting pile crown schematic diagram.
Specific embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from start to finish
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, is only used for explaining the present invention, and is not construed as limiting the claims.
Those skilled in the art of the present technique are appreciated that unless otherwise defined all terms used herein are (including technology art
Language and scientific terminology), with art of the present invention in those of ordinary skill general understanding identical meaning.Should also
It is understood by, those terms defined in such as general dictionary, it should be understood that with the context with prior art
The consistent meaning of meaning, and unless by specific definitions as here, will not otherwise use idealization or excessively formal implication
To explain.
Below by embodiment, drilled pile pile crown entirety breaking construction method of the present invention is discussed in detail.
First, with reference to the schematic flow sheet of Fig. 1 drilled pile pile crown entirety breaking construction method wherein embodiments of the present invention,
The invention discloses an a kind of drilled pile pile crown entirety breaking construction method wherein embodiment, Details as Follows：
Before this engineering method mainly installs steel reinforcement cage after drilled pile drilling terminates, by the compound de- Song Taozhi for processing in advance
Female connector enters the cage bar and sound detecting pipe outer end face that steel reinforcement cage exposes cushion cap, and its position fixation is ensured into vibration does not occur, and is combined
De- pine set makes pile crown concrete and cage bar not bond；After the completion of excavation of foundation pit, pull out at stake top absolute altitude above 10cm
Pre-buried blocks hoop, and using the vertical pile body direction drilling of pneumatic pick, drilling depth is only needed to reach the 1/5 of a footpath, will separated
In chock insertion drilling, and tapped using external force, until pile crown is kept completely separate with pile body, then hung out using lifting appliance
Top pile crown.The pile crown of this top section, is vertically carried, and it is that honeycomb briquette is the same to just look like.
Specifically, first, do homework, compound de- pine covers, blocks the raw materials such as hoop on deck, and steel reinforcement cage is by design
Require to make, all of vertical reinforcement, it is necessary to parallel with stake axle there can not be broken line.
Then, as shown in Fig. 2 after the completion of drilling and reinforcing bar colligation, installing compound de- pine set in pile crown reinforcement location, then
Pile foundation reinforcing bar 1 in place, forms steel reinforcement cage, and in the position of reinforcing bar 1 of the steel reinforcement cage compound de- pine set 3 is installed, and in stake top absolute altitude
Position above 10cm, pre-buried to block hoop 2 around stake Monday circle, described blocking binds round the remaining steel wire rope in 2 terminations.Wherein it is combined de- pine
Set 3 is mainly disposed at pile crown, and in order to ensure the separation of later stage pile crown, the compound de- pine set 3 enters pile body 5-10cm,
Here being combined de- pine set 3 can be set as the case may be into the length of pile body, and specific restriction is not made here, wherein
Pile body is part below pile crown.In addition, further, compound de- pine set can be tightened with rubber band, it is ensured that it does not occur vibration,
Its position is fixed.Compound de- pine set 3 is prepared from using flexible plastic pipe, so as to ensure it in filling concrete, not by
Concrete squeezes flat failure.The diameter 2-5mm bigger than the diameter of cover reinforcing bar of compound de- pine set 3, it is ensured that the compound de- pine set 3 and
The reinforcing bar is separated.
Then, install and block hoop:The position at stake top absolute altitude above 10cm, it is pre-buried to block hoop (i.e. steel wire around stake Monday circle
The compound de- pine set of rope overcoat, the cage bar outside one around stake is enclosed, and inside fills out fine sand or other implants.The remaining length of steel wire rope end head
10cm, to extract in the future)." blocking hoop " is tied up on the condom of cage bar and pushed down, is tightened with tied silk herein.
Then, steel reinforcement cage and concrete placings are laid：Steel reinforcement cage is laid using lifting, and steel reinforcement cage handling and placement are, it is ensured that constant
Shape, hangs and be aligned when being sent in place in hole stake holes, hangs and directly help steady, slow sinking, it is to avoid collision hole wall.It is noted that de- pine covers, blocks
Hoop etc. is not damaged by.After pile cages are all in place, concrete placings are carried out Jing after concealment acceptance is qualified.Concrete answers continuous placing, and controls
Depth in conduit embedment concrete processed, takes the measure of prevention rising of steel cage.
Then, after reaching 70% etc. pile foundation intensity, cushion cap foundation ditch is excavated, in cushion cap Excavation Process, is exposed at pile crown
Outer cage bar must be protected, it is impossible to damaged or bent, and otherwise abolish pile crown to entirety unfavorable.
Then, as shown in figure 3, pulling out " blocking hoop ":After cushion cap excavation of foundation pit, expose pile crown.Shadow part is tapped with iron hammer
Divide concrete, driven using steel wire rope, extract " blocking hoop ", it is seen that circle groove surface of level one (cutting a position).
Then, chock hole is bored:Using small-sized rig (such as pneumatic pick), the vertical pile body direction of pneumatic pick is adopted at groove surface
Drilling, drilling depth only needs to reach the 1/5 of a footpath, and drill 8, i.e. chock in same level, along stake diametric(al)
Hole, forms and cuts stake plane of weakness.
Then, pile crown is separated using chock:During chock insertion drilling will be separated, and tapped using external force, until boring
Pile crown is kept completely separate with pile body at hole, meanwhile, enclosed using hydraulic test horizontal direction top chisel one, detached pile crown is rocked
(stub such as pile pier does not apply to this method), it is ensured that pile crown is kept completely separate with reinforcing bar and concrete piles.
Then, as shown in figure 4, drilling, installation lifting drill rod:It is same level on the wall of pile crown concrete side, straight along stake
Footpath direction jewel hole (vertical, horizontal is each to beat a pair of holes (totally four)), squeezes into drill rod.
Finally, pile crown is lifted by crane:Steel wire rope is hung up properly toward on drill rod, with loop wheel machine or hoist engine vertical lifting, by pile crown concrete
Entirety hangs out foundation ditch, is placed on the pile crown storage space that foundation ditch periphery sets.
The above is only some embodiments of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of drilled pile pile crown entirety breaking construction method, it is characterised in that comprise the steps：
After the completion of reinforcing bar colligation, steel reinforcement cage is formed, compound de- pine set is installed in the pile crown reinforcement location of the steel reinforcement cage, and in stake
Position at top mark high above 10cm, pre-buried to block hoop around stake Monday circle, steel wire rope is reserved in the hoop termination of blocking；
Laid using lifting, the steel reinforcement cage is put in foundation ditch, Jing concealment acceptances are qualified after the steel reinforcement cage is all in place
After carry out concreting, form drilled pile；
Reach after 70% etc. the drilled pile intensity, excavate cushion cap foundation ditch, expose pile crown, and extracted using steel wire rope drive
Hoop is blocked, one is formed and is enclosed groove；
Using rig, drill along vertical pile body direction in the groove, formed and cut stake plane of weakness, using separation chock
Insert in the drilling in the groove under the percussion of external force, pile crown is separated with pile body；
On the wall of the pile crown side, 4 holes are made a call to along on the diametric cross of the pile crown, and drill rod is inserted into described 4
In individual hole, the drill rod is hung up properly into steel wire rope, the pile crown is integrally hung out by foundation ditch using loop wheel machine.
2. drilled pile pile crown as claimed in claim 1 entirety breaking construction method, it is characterised in that the compound de- Song Taozhu
It is arranged at pile crown, and in order to ensure the separation of later stage pile crown, the compound de- pine covers into pile body 5-10cm.
3. drilled pile pile crown as claimed in claim 2 entirety breaking construction method, it is characterised in that the compound de- pine is applied mechanically
Rubber band is tightened, it is ensured that it does not occur vibration, and its position is fixed.
4. drilled pile pile crown as claimed in claim 3 entirety breaking construction method, it is characterised in that the compound de- pine set is adopted
It is prepared from flexible plastic pipe, so as to ensure it in filling concrete, flat failure is not squeezed by concrete.
5. drilled pile pile crown as claimed in claim 1 entirety breaking construction method, it is characterised in that the compound de- pine set
Diameter 2-5mm bigger than the diameter of covered pile crown reinforcing bar, it is ensured that the compound de- pine set is separated with the pile crown reinforcing bar.
6. drilled pile pile crown as claimed in claim 1 entirety breaking construction method, it is characterised in that described using lifting peace
Put, the steel reinforcement cage is put in the step in foundation ditch, should be noted that the compound de- Song Taohe blocks hoop and is not destroyed.
7. drilled pile pile crown as claimed in claim 1 entirety breaking construction method, it is characterised in that the drilled pile is strong waiting
Degree is reached after 70%, excavates cushion cap foundation ditch, the step of expose pile crown in, the pile crown reinforcing bar being exposed at outside pile crown must be protected
Protect, it is impossible to damage or bend, can otherwise affect the entirety of whole pile crown to abolish.
8. drilled pile pile crown as claimed in claim 1 entirety breaking construction method, it is characterised in that the employing drilling sets
It is standby, drill along vertical pile body direction in the groove, in forming the step of cutting stake plane of weakness, the drilling depth is only needed to
The 1/5 of a footpath is reached, in same level, is drilled 8 along stake diametric(al), form described section of stake plane of weakness.
9. drilled pile pile crown as claimed in claim 1 entirety breaking construction method, it is characterised in that described using separating chock
Insert in the drilling in the groove under the percussion of external force, the step of pile crown is separated with pile body in, chock insertion will be separated
In drilling, and tapped using external force, until drill hole pile crown is kept completely separate with pile body, meanwhile, using hydraulic test level
Direction top chisel one is enclosed, and detached pile crown is rocked, it is ensured that pile crown is kept completely separate with reinforcing bar and pile body.
10. drilled pile pile crown as claimed in claim 1 entirety breaking construction method, it is characterised in that the rig is
Such as pneumatic pick.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710059213.5A CN106592591A (en) | 2017-01-23 | 2017-01-23 | Drilling pile head overall removal construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710059213.5A CN106592591A (en) | 2017-01-23 | 2017-01-23 | Drilling pile head overall removal construction method |
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| CN106592591A true CN106592591A (en) | 2017-04-26 |
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| CN201710059213.5A Pending CN106592591A (en) | 2017-01-23 | 2017-01-23 | Drilling pile head overall removal construction method |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108385686A (en) * | 2018-03-02 | 2018-08-10 | 中铁上海工程局集团有限公司 | A kind of cast-in-situ bored pile exempts from stripping and exempts from ring cutting to cut pile crown technique |
| CN108708369A (en) * | 2018-05-31 | 2018-10-26 | 中交公局第工程有限公司 | A kind of networking measures the positioning construction method and its device of control stake |
| CN109083148A (en) * | 2018-08-24 | 2018-12-25 | 中铁十四局集团第三工程有限公司 | A kind of drilling pile pile crown constructing device and its construction method |
| CN109577203A (en) * | 2018-11-14 | 2019-04-05 | 黑龙江建筑职业技术学院 | Column piers and abutments pile extension reinforcing bar is without bracket and construction method |
| CN109680681A (en) * | 2018-12-20 | 2019-04-26 | 宁波交通工程咨询监理有限公司 | A kind of pile crown restructuring bankrupt of cast-in-situ bored pile |
| CN109989393A (en) * | 2017-12-30 | 2019-07-09 | 广州协安建设工程有限公司 | Bored concrete pile and its pile crown breaking construction method |
| CN110185036A (en) * | 2019-05-31 | 2019-08-30 | 五冶集团上海有限公司 | A kind of concrete filling pile head restructuring bankrupt |
| CN113668529A (en) * | 2021-07-21 | 2021-11-19 | 甘肃建投建设有限公司 | Construction method for breaking and removing pile head with template based on steel wedge-shaped gap |
| CN114086555A (en) * | 2021-11-25 | 2022-02-25 | 中铁三局集团有限公司 | Combined device for breaking pile head of bored pile foundation and pile head breaking construction method |
| CN114232628A (en) * | 2022-01-27 | 2022-03-25 | 中国十七冶集团有限公司 | Cutting hoop for integrally breaking pile head of cast-in-situ bored pile and construction method |
| CN114808941A (en) * | 2022-06-06 | 2022-07-29 | 新疆北新路桥集团股份有限公司 | Construction method of engineering pile |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109989393A (en) * | 2017-12-30 | 2019-07-09 | 广州协安建设工程有限公司 | Bored concrete pile and its pile crown breaking construction method |
| CN108385686A (en) * | 2018-03-02 | 2018-08-10 | 中铁上海工程局集团有限公司 | A kind of cast-in-situ bored pile exempts from stripping and exempts from ring cutting to cut pile crown technique |
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| CN108708369A (en) * | 2018-05-31 | 2018-10-26 | 中交公局第工程有限公司 | A kind of networking measures the positioning construction method and its device of control stake |
| CN109083148A (en) * | 2018-08-24 | 2018-12-25 | 中铁十四局集团第三工程有限公司 | A kind of drilling pile pile crown constructing device and its construction method |
| CN109577203A (en) * | 2018-11-14 | 2019-04-05 | 黑龙江建筑职业技术学院 | Column piers and abutments pile extension reinforcing bar is without bracket and construction method |
| CN109577203B (en) * | 2018-11-14 | 2020-09-01 | 黑龙江建筑职业技术学院 | Column type pier pile extension steel bar bracket-free and construction method |
| CN109680681A (en) * | 2018-12-20 | 2019-04-26 | 宁波交通工程咨询监理有限公司 | A kind of pile crown restructuring bankrupt of cast-in-situ bored pile |
| CN110185036A (en) * | 2019-05-31 | 2019-08-30 | 五冶集团上海有限公司 | A kind of concrete filling pile head restructuring bankrupt |
| CN113668529A (en) * | 2021-07-21 | 2021-11-19 | 甘肃建投建设有限公司 | Construction method for breaking and removing pile head with template based on steel wedge-shaped gap |
| CN114086555A (en) * | 2021-11-25 | 2022-02-25 | 中铁三局集团有限公司 | Combined device for breaking pile head of bored pile foundation and pile head breaking construction method |
| CN114232628A (en) * | 2022-01-27 | 2022-03-25 | 中国十七冶集团有限公司 | Cutting hoop for integrally breaking pile head of cast-in-situ bored pile and construction method |
| CN114808941A (en) * | 2022-06-06 | 2022-07-29 | 新疆北新路桥集团股份有限公司 | Construction method of engineering pile |
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Application publication date: 20170426 |