CN110185036A - A kind of concrete filling pile head restructuring bankrupt - Google Patents
A kind of concrete filling pile head restructuring bankrupt Download PDFInfo
- Publication number
- CN110185036A CN110185036A CN201910469384.4A CN201910469384A CN110185036A CN 110185036 A CN110185036 A CN 110185036A CN 201910469384 A CN201910469384 A CN 201910469384A CN 110185036 A CN110185036 A CN 110185036A
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- China
- Prior art keywords
- drill rod
- pile
- concrete filling
- reinforcing bar
- pile head
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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)
Abstract
A kind of concrete filling pile head restructuring bankrupt, characterized by the following steps: a, before cast-in-place concrete pile pours, more than the stake top absolute altitude of pile body the reinforcing bar for abolishing position will be needed to do isolation processing, b, sponges cover package isolation reinforcing bar length should be calculated according to design drawing and practical hole depth, c, it is completed to concreting, reaching design allows to abolish pile crown intensity, d, prefabricated several drill rods, drill rod includes upper drill rod, lower drill rod, e, the pile crown position that drill rod is struck off uses steel wire loop beam, and it is transported out of in conjunction with backacter, concrete filling pile head is completed to abolish.Concrete filling pile head restructuring bankrupt of the invention has pile crown restructuring bankrupt, and design is scientific and reasonable, it abolishes high-efficient, reduce the manual work time, drill rod structure is simple, easy to make, it reduces pile crown and abolishes operation injury caused by reinforcing bar, environmental pollutions such as fugitive dust, noise generated when reducing construction operation and the advantages of do not influence pile quality.
Description
Technical field
The present invention relates to a kind of pile crown restructuring bankrupts, specifically, being a kind of concrete filling pile head restructuring bankrupt.
Background technique
In construction projects, it commonly uses and encounters geological condition complexity, foundation bearing capacity is insufficient, need to be carried using pile foundation
Engineering, and because geological conditions limit, design often be cast-in-situ concrete poured pile foundation, according to cast-in-situ concrete poured pile driving construction
Technique and acceptance specification requirement, bored concrete pile answer superfilled no less than 1 meter, and the later period should abolish this part, and pile crown is abolished, if according to
Tradition, which is abolished method and abolished, to be had the following problems:
1, construction efficiency is low, and it is longer the durations such as to abolish, transport, modifying.
2, after abolishing, it is difficult and costly that concrete block transports outward foundation pit.
3, injury, deformation etc. are easily caused when main reinforcement removing concrete, influences its stressed effect.
4, the manual work time is long, and working environment is poor, easily injury is generated to human health, and costly, especially in existing rank
Section labour cost rises steadily.
5, construction operation noise is big, pollutes environment, and generation disturbs residents.
Therefore known concrete filling pile head restructuring bankrupt there are problems that it is above-mentioned various inconvenient and.
Summary of the invention
The purpose of the present invention is to propose a kind of safe and reliable concrete filling pile head restructuring bankrupt.
To achieve the above object, the technical solution of the invention is as follows:
A kind of concrete filling pile head restructuring bankrupt, it is characterised in that the following steps are included:
A, before cast-in-place concrete pile pours, more than the stake top absolute altitude of pile body the reinforcing bar for abolishing position will be needed to do isolation processing, every
From processing using sponges cover package isolation reinforcing bar, or pvc pipe is used to be inserted in reinforcing bar isolation；
B, sponges cover package isolation reinforcing bar length should according to design drawing and practical hole depth calculating, and to the worker of specific implementation into
Row is told somebody what one's real intentions are, and is carried out 100% before concreting and checked, if discovery sponges cover or pvc pipe have breakage, should be carried out in time more
It changes or remediation；
C, it is completed to concreting, reaching design allows to abolish pile crown intensity, is gone out at stake top according to Foundation Pit bottom absolute altitude inverse
Absolute altitude, and marked absolute altitude at stake top onto pile body according to hole bottom absolute altitude；
D, pile crown is abolished when cast-in-place pile concrete intensity reaches 80% or more of design strength, it is broken in pile crown using tape measuring
Except the ring stake section at position is drilled with 4 pricker holes respectively, the bit size used that drills should be consistent with drill rod diameter, after the completion of pricker hole
It is inserted into drill rod, and strikes lower drill rod and pile crown pricker is broken using the principle of concrete tensile strength difference；
E, the pile crown position for striking off drill rod uses steel wire loop beam, and is transported out of in conjunction with backacter, and coagulation is completed
Native filling pile head is abolished.
Concrete filling pile head restructuring bankrupt of the invention can also be further achieved by the following technical measures.
Method above-mentioned, wherein sponges cover package isolation reinforcing bar, the upper and lower opening of sponges cover are tightened with tied silk.
Method above-mentioned, wherein reinforcing bar is isolated in the pvc pipe, with adhesive tape by pvc pipe mouth upper-lower seal.
Method above-mentioned, wherein it is≤15cm that the pricker hole, which pierces depth,.
Method above-mentioned is inserted into lower drill rod wherein the drill rod is first inserted into drill rod.
Method above-mentioned, wherein the upper drill rod section is right angled triangle voussoir, a right-angle side of triangle voussoir
Length is >=70mm, and a right angle edge lengths are >=20mm, and the groove gradient is 1:3.
Method above-mentioned, wherein the lower drill rod section is right-angled trapezium voussoir, the bottom of right-angled trapezium voussoir is a length of >=
200mm, a height of >=20mm, groove length are 7mm, and the groove gradient is 1:3.
After adopting the above technical scheme, concrete filling pile head restructuring bankrupt of the invention has the advantage that
1, design is scientific and reasonable for pile crown restructuring bankrupt, abolishes high-efficient, the reduction manual work time；
2, drill rod structure is simple, easy to make, reduces pile crown and abolishes operation injury caused by reinforcing bar, produces when reducing construction operation
The environmental pollutions such as raw fugitive dust, noise；
3, pile quality is not influenced.
Detailed description of the invention
Fig. 1 abolishes pile crown structural schematic diagram for the embodiment of the present invention；
Fig. 2 is the upper drill rod structural schematic diagram of the embodiment of the present invention；
Fig. 3 is the lower drill rod structural schematic diagram of the embodiment of the present invention.
In figure: 1 longitudinal reinforcement for needing to be isolated, 2 stake top absolute altitudes, 3 concrete cushions, 4 cushion caps, 5 steel reinforcement cages.
Specific embodiment
With reference to embodiments and its attached drawing further explains the present invention.
Embodiment 1
Referring now to Fig. 1, Fig. 1 abolishes pile crown structural schematic diagram for the embodiment of the present invention.
Concrete filling pile head restructuring bankrupt of the invention, comprising the following steps:
1, before concreting, pile body need to be abolished and done at isolation on the steel reinforcement cage of position (i.e. stake top absolute altitude 2 is with upper bit)
Reason, isolation processing can be used thick sponges cover package isolation reinforcing bar, pvc pipe can also be used and be isolated.
2, the length of longitudinal reinforcement 1 for needing to be isolated should be according to design drawing and the calculating of practical hole depth, and to specific implementation
Worker tell somebody what one's real intentions are, if being tightened using sponges cover upper and lower opening with tied silk, if using pvc pipe isolation adhesive tape can be used will be on nozzle
Lower sealing, and carry out 100% before concreting and check, if discovery has breakage to carry out replacement or remediation in time.
3, completion to be poured, which reaches design, allows to abolish pile crown intensity, is gone out at stake top according to Foundation Pit bottom absolute altitude inverse and is marked
Height, and marked absolute altitude at stake top onto pile body according to hole bottom absolute altitude.
4, pile crown can be abolished when cast-in-place pile concrete intensity reaches 80% of design strength or more, by technology people before operation
Member confides a technological secret to worker, using soft tape measuring, is drilled with 4 pricker holes respectively in ring stake section, drilling depth should not mistake
Shallowly, hole depth is preferably greater than 15cm, and the bit size used that drills should be consistent with drill rod diameter, is inserted into drill rod after the completion of pricker hole and (first inserts
Enter upper drill rod, be inserted into lower drill rod), impact drill rod (lower drill rod) is carried out, using the principle of concrete tensile strength difference, by pile crown
Pricker is disconnected.
5, the pile crown position for having used drill rod to strike off is used into steel wire loop beam, and is transported out of in conjunction with backacter.
The present invention has substantive distinguishing features and significant technological progress, the concrete filling pile head side of abolishing of the invention
Method, method is simple, low in cost, accelerates construction efficiency, reduces the manual work time, and reduction pile crown is abolished operation and caused to reinforcing bar
Injury, environmental pollutions such as fugitive dust, noise for generating when reducing construction operation, while this method will not generate shadow to pile quality
It rings.
Concrete filling pile head restructuring bankrupt of the invention is on PPP hot eyes mountains of Shangli County urbanization infrastructure construction
Industry park standardization Industrial Plant pile foundation is abolished in job engineering and is used, significant effect, obtained exploiting entity, supervisor and
Owner's abundant affirmation.
Above embodiments are used for illustrative purposes only, rather than limitation of the present invention, the technology people in relation to technical field
Member, without departing from the spirit and scope of the present invention, can also make various transformation or variation.Therefore, all equivalent
Technical solution also should belong to scope of the invention, should be limited by each claim.
Claims (7)
1. a kind of concrete filling pile head restructuring bankrupt, it is characterised in that the following steps are included:
A, before cast-in-place concrete pile pours, more than the stake top absolute altitude of pile body the reinforcing bar for abolishing position will be needed to do isolation processing, every
From processing using sponges cover package isolation reinforcing bar, or pvc pipe is used to be inserted in reinforcing bar isolation；
B, sponges cover package isolation reinforcing bar length should according to design drawing and practical hole depth calculating, and to the worker of specific implementation into
Row is told somebody what one's real intentions are, and is carried out 100% before concreting and checked, if discovery sponges cover or pvc pipe have breakage, should be carried out in time more
It changes or remediation；
C, it is completed to concreting, reaching design allows to abolish pile crown intensity, is gone out at stake top according to Foundation Pit bottom absolute altitude inverse
Absolute altitude, and marked absolute altitude at stake top onto pile body according to hole bottom absolute altitude；
D, prefabricated several drill rods, drill rod include upper drill rod, lower drill rod；Reach the 80% of design strength in cast-in-place pile concrete intensity
Pile crown is abolished when above, using tape measuring, 4 pricker holes is drilled with respectively in the ring stake section that pile crown abolishes position, used in drilling
Bit size should be consistent with drill rod diameter, and drill rod is inserted into after the completion of pricker hole, and strike lower drill rod, utilize concrete tensile strength
The principle of difference, pile crown pricker is broken；
E, the pile crown position for striking off drill rod uses steel wire loop beam, and is transported out of in conjunction with backacter, and coagulation is completed
Native filling pile head is abolished.
2. concrete filling pile head restructuring bankrupt as described in claim 1, which is characterized in that the sponges cover package isolation
The upper and lower opening of reinforcing bar, sponges cover is tightened with tied silk.
3. concrete filling pile head restructuring bankrupt as described in claim 1, which is characterized in that reinforcing bar is isolated in the pvc pipe,
With adhesive tape by pvc pipe mouth upper-lower seal.
4. concrete filling pile head restructuring bankrupt as described in claim 1, which is characterized in that the pricker hole pierces depth and is
≤15cm。
5. concrete filling pile head restructuring bankrupt as described in claim 1, which is characterized in that the drill rod is first inserted into steel
Pricker is inserted into lower drill rod.
6. concrete filling pile head restructuring bankrupt as described in claim 1, which is characterized in that the upper drill rod section is straight
Angle triangle voussoir, a right angle edge lengths of triangle voussoir are >=70mm, and a right angle edge lengths are >=20mm, groove slope
Degree is 1:3.
7. concrete filling pile head restructuring bankrupt as described in claim 1, which is characterized in that the lower drill rod section is straight
The trapezoidal voussoir in angle, the bottom of right-angled trapezium voussoir is a length of >=200mm, a height of >=20mm, groove length is 7mm, and the groove gradient is
1:3。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910469384.4A CN110185036A (en) | 2019-05-31 | 2019-05-31 | A kind of concrete filling pile head restructuring bankrupt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910469384.4A CN110185036A (en) | 2019-05-31 | 2019-05-31 | A kind of concrete filling pile head restructuring bankrupt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110185036A true CN110185036A (en) | 2019-08-30 |
Family
ID=67719403
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910469384.4A Pending CN110185036A (en) | 2019-05-31 | 2019-05-31 | A kind of concrete filling pile head restructuring bankrupt |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102312429A (en) * | 2011-07-12 | 2012-01-11 | 中铁西北科学研究院有限公司 | Rapid separation and integral hoisting method for pile head of cast-in-place concrete pile |
| CN102587380A (en) * | 2012-02-08 | 2012-07-18 | 湖南省第二工程有限公司 | Construction method for wholly removing drilling pile head |
| CN102926380A (en) * | 2012-11-20 | 2013-02-13 | 中铁十九局集团第三工程有限公司 | Bridge cast-in-place pile chiseling-free pile head and construction method thereof |
| CN104727306A (en) * | 2015-03-19 | 2015-06-24 | 中交二航局第三工程有限公司 | Cast-in place pile pouring and pile head cutting-off method |
| CN106592591A (en) * | 2017-01-23 | 2017-04-26 | 中交三公局第工程有限公司 | Drilling pile head overall removal construction method |
| CN206220091U (en) * | 2016-12-02 | 2017-06-06 | 中冶建工集团有限公司 | CFG for easily blocking |
-
2019
- 2019-05-31 CN CN201910469384.4A patent/CN110185036A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102312429A (en) * | 2011-07-12 | 2012-01-11 | 中铁西北科学研究院有限公司 | Rapid separation and integral hoisting method for pile head of cast-in-place concrete pile |
| CN102587380A (en) * | 2012-02-08 | 2012-07-18 | 湖南省第二工程有限公司 | Construction method for wholly removing drilling pile head |
| CN102926380A (en) * | 2012-11-20 | 2013-02-13 | 中铁十九局集团第三工程有限公司 | Bridge cast-in-place pile chiseling-free pile head and construction method thereof |
| CN104727306A (en) * | 2015-03-19 | 2015-06-24 | 中交二航局第三工程有限公司 | Cast-in place pile pouring and pile head cutting-off method |
| CN206220091U (en) * | 2016-12-02 | 2017-06-06 | 中冶建工集团有限公司 | CFG for easily blocking |
| CN106592591A (en) * | 2017-01-23 | 2017-04-26 | 中交三公局第工程有限公司 | Drilling pile head overall removal construction method |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190830 |
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| RJ01 | Rejection of invention patent application after publication |