CN117051831A - Pile head breaking method for cast-in-place pile - Google Patents
Pile head breaking method for cast-in-place pile Download PDFInfo
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- CN117051831A CN117051831A CN202310926180.5A CN202310926180A CN117051831A CN 117051831 A CN117051831 A CN 117051831A CN 202310926180 A CN202310926180 A CN 202310926180A CN 117051831 A CN117051831 A CN 117051831A
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- 238000000034 method Methods 0.000 title claims abstract description 25
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 73
- 239000010959 steel Substances 0.000 claims abstract description 73
- 238000000926 separation method Methods 0.000 claims abstract description 33
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims abstract description 32
- 230000002787 reinforcement Effects 0.000 claims abstract description 30
- 239000004033 plastic Substances 0.000 claims abstract description 19
- 229920003023 plastic Polymers 0.000 claims abstract description 19
- 238000010276 construction Methods 0.000 claims abstract description 15
- 238000002955 isolation Methods 0.000 claims abstract description 9
- 239000002985 plastic film Substances 0.000 claims description 16
- 229920006255 plastic film Polymers 0.000 claims description 16
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 12
- 238000009434 installation Methods 0.000 claims description 7
- 229910052742 iron Inorganic materials 0.000 claims description 6
- 238000005192 partition Methods 0.000 claims description 6
- 239000011324 bead Substances 0.000 claims description 5
- 239000004744 fabric Substances 0.000 claims description 5
- 238000005553 drilling Methods 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000001681 protective effect Effects 0.000 abstract description 6
- 238000007789 sealing Methods 0.000 description 4
- 230000006378 damage Effects 0.000 description 3
- 239000002390 adhesive tape Substances 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
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
- E02D5/223—Details of top sections of foundation piles
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0023—Cast, i.e. in situ or in a mold or other formwork
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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 relates to the field of sheet pile walls, in particular to a method for breaking pile heads of cast-in-place piles, which comprises an overcast part concrete pile and a breaking step, wherein pile head reinforcing steel bars are arranged in the overcast part concrete pile, steel bars are arranged on the outer wall of the overcast part concrete pile, the cast-in-place piles are provided with annular separation bars and internal rectangular separation bars at the elevation position of pile tops, reinforcement cage hanging rings are arranged at the tops of fixed reinforcement cages, and inflatable plastic protective films are connected at the tops of pile head reinforcing steel bars. The pile head elevation position is provided with the inner filling isolation strip and the outer filling isolation strip, so that the concrete sectional area of the pile body is reduced, the cut-off construction is easier, the construction is more efficient, and the expenditure of labor cost is reduced.
Description
Technical Field
The invention relates to the field of sheet pile walls, in particular to a pile head breaking method of a cast-in-place pile.
Background
In the construction engineering, according to the construction specification, the filling pile should be over-filled with not less than 0.5-1.0 m, and the part should be broken in the later stage, and if the pile head is broken according to the traditional breaking method, the following problems exist:
1. the construction efficiency is low, and the construction period such as breaking, trimming and the like is long.
2. After the concrete is broken, the concrete residues are more and difficult to collect.
3. The main reinforcement is easy to cause injury, deformation and the like when being stripped from the concrete, the stress effect is affected, and the later straightening cost is high.
4. The construction operation has large noise and much dust emission, and pollutes the environment.
5. The traditional integral breaking process adopts pile head reinforcing steel bars to sleeve pvc pipes, and has high cost and large one-time investment.
The known methods for breaking the pile head of a bored concrete pile therefore have the above-mentioned inconveniences and problems.
In view of the above, the problems that the concrete breaking construction of the over-filling part of the pile head of the cast-in-place pile is troublesome, the steel bars are easy to deform in the breaking process, and the noise of the broken pile head is large in the traditional process are solved. Therefore, the invention provides an economical and practical pile head breaking method.
Disclosure of Invention
The invention aims to provide a pile head breaking method of a cast-in-place pile, which aims to solve the problems in the background technology.
In order to achieve the above purpose, the method for breaking the pile head of the cast-in-place pile comprises an overcast part concrete base column and a breaking step, pile head reinforcing steel bars are arranged in the overcast part concrete base column, a concrete mounting column is arranged above the overcast part concrete base column, steel bars are arranged on the outer wall of the concrete mounting column, a hoisting steel wire rope is connected to the top of the concrete mounting column, annular separation bars and inner rectangular separation bars are arranged at the pile head elevation position of the cast-in-place pile, a fixed reinforcement cage is arranged in the concrete mounting column, reinforcement cage hanging rings are arranged at the top of the fixed reinforcement cage, and an inflatable plastic protection film is connected to the top of the pile head reinforcing steel bars.
Preferably, the concrete installing column is detachably arranged at the top of the concrete base column of the superirrigation part, the size of the concrete base column of the superirrigation part is matched with the size of the concrete installing column, a plurality of holes are formed in the concrete installing column, tubular plastic films are used for wrapping reinforcing steel bars in isolation treatment, the lower opening is wrapped and wrapped with rubberized fabrics and pile head reinforcing steel bars for sealing, a wind pressure machine is used for sealing after air is injected into the tubular plastic sleeves at the upper opening, and ropes or knots are used for sealing at the upper opening, so that the pile head reinforcing steel bars are isolated from external concrete.
Preferably, pile head reinforcing steel bars are fixedly connected to the top of the concrete foundation column of the over-filling part, the number of the pile head reinforcing steel bars is a plurality of, and the size of the pile head reinforcing steel bars is the same as the size of holes in the concrete installation column.
Preferably, the steel drill rod penetrates through the outer wall of the concrete mounting column, the size of the steel drill rod is matched with the size of the hole in the outer wall of the concrete mounting column, the number of the steel drill rods is two, the hoisting steel wire rope is fixedly connected above the steel drill rod, the steel drill rod is used for cutting off the concrete of the superfilling part at the pile top elevation position, and the pile head is easily cut off by utilizing the characteristic that the cross section area of the concrete at the position is smaller.
Preferably, the annular separation strip is fixedly arranged on the outer side of the concrete foundation column of the superirrigation part, the rectangular separation strip is fixedly arranged in the concrete foundation column of the superirrigation part, the annular separation strip is round, the rectangular separation strip is rectangular, the inner separation strips are all fixed on pile head reinforcing steel bars by using iron wires, and the outer annular separation strip is fixed on pile head stiffening hoops or pile head reinforcing steel bars. The setting of pre-buried annular parting bead can protect later stage pile head concrete when cuting, and the crack downwardly extending destroys the risk of lower part pile body concrete, reduces the construction step of traditional circular cutting.
Preferably, the fixed reinforcement cage fixed mounting is in the inside of concrete erection column, reinforcement cage rings fixed connection is at the top of fixed reinforcement cage, the quantity of reinforcement cage rings is two, aerify plastics protection film fixed mounting is at the top of pile head reinforcing bar, the quantity of aerify plastics protection film is a plurality of.
Preferably, the specific steps of the breaking step are as follows:
step one: before pouring a concrete filling pile, carrying out isolation treatment on the steel bars of the part to be broken above the pile top elevation of the pile body, wherein the steel bars are wrapped by tubular plastic films, the lower opening is sealed by winding and wrapping the steel bars with rubberized fabrics, the upper opening is sealed by using a wind pressure machine after air is injected into a tubular plastic sleeve through the upper opening, and the upper opening is sealed by using rope or knotting and other modes, so that the steel bars of the pile head are isolated from external concrete;
step two: at the elevation of the pile top, the periphery of the steel bar is surrounded by an inflatable plastic film to form a peripheral annular separation strip, and the inner side of the steel bar is formed by an inflatable plastic film to form an inner separation strip. The inner partition strips are fixed on pile head reinforcing steel bars by using iron wires, and the outer annular partition strips are fixed on pile top stiffening hoops or pile head reinforcing steel bars. The setting of pre-buried annular parting bead can protect later stage pile head concrete when cuting, and the crack downwardly extending destroys the risk of lower part pile body concrete, reduces the construction step of traditional circular cutting.
Step three: and burying a reinforcement cage and pouring concrete.
Step four: and after the concrete pouring is completed, excavating the earthwork to the elevation of the designed pile top, and exposing the ground at the superfilling part.
Step five: firstly, using steel drills to drill off concrete of the over-filling part at the pile top elevation position, and easily cutting off the pile head by utilizing the characteristic of small concrete sectional area at the position;
step six: and symmetrically drilling holes at one third of the upper end of the pile head, installing two steel bar hanging rings, fastening a steel wire rope, and mechanically hanging out the cut pile head to finish pile head breaking work.
Compared with the prior art, the invention has the beneficial effects that:
the tubular plastic film has low cost, can be filled with air rapidly by using the wind pressure machine, and is simple to operate and more economical compared with the traditional pvc pipe or foam pipe. The pile head elevation position is provided with the inner filling isolation strip and the outer filling isolation strip, so that the concrete sectional area of the pile body is reduced, the cut-off construction is easier, the construction is more efficient, and the expenditure of labor cost is reduced. The pile head is integrally broken, damage to pile head steel bars in the breaking process is reduced, and common problems of large traditional breaking noise and more dust are also reduced.
The binding force between the pile top supergrouting soil and the pile head reinforcing steel bars is reduced by sleeving the inflatable tubular plastic protective film on the pile head reinforcing steel bars. The horizontal direction sets up inside and outside twice parting bead, reduces pile top elevation position concrete sectional area, makes it cut off more easily. And the steel bars are used for shorting the concrete bars of the pile head, and then the excavator is used for hoisting away the pile head, so that the whole breaking construction of the cast-in-place pile is realized.
Drawings
FIG. 1 is a schematic top view of the present invention;
FIG. 2 is a schematic plan view of the present invention;
FIG. 3 is a schematic structural view of an inflated plastic protective film;
FIG. 4 is a schematic perspective view of the present invention;
fig. 5 is a schematic diagram of the overall structure of the present invention.
In the figure: 1. a concrete base column of the superfilling part; 2. a concrete mounting column; 3. pile head reinforcing steel bars; 4. steel drill rod; 5. hoisting a steel wire rope; 6. an annular dividing strip; 7. rectangular dividing strips; 8. lifting rings of the reinforcement cage; 9. an inflatable plastic protective film; 10. fixing the reinforcement cage.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-5, a pile head breaking method for a cast-in-place pile in the drawings comprises an overcast part concrete base column 1 and a breaking step, pile head steel bars 3 are arranged in the overcast part concrete base column 1, a concrete mounting column 2 is arranged above the overcast part concrete base column 1, steel bars 4 are arranged on the outer wall of the concrete mounting column 2, a hoisting steel wire rope 5 is connected to the top of the concrete mounting column 2, annular separation bars and internal rectangular separation bars are arranged at the pile top elevation position of the cast-in-place pile, a fixed steel bar cage 10 is arranged in the concrete mounting column 2, steel bar cage lifting rings 8 are arranged at the top of the fixed steel bar cage 10, and an inflatable plastic protection film 9 is connected to the top of the pile head steel bars 3.
The concrete mounting column 2 is detachably mounted at the top of the concrete base column 1 of the superirrigation part, the size of the concrete base column 1 of the superirrigation part is matched with the size of the concrete mounting column 2, and a plurality of holes are formed in the concrete mounting column 2.
Pile head reinforcing steel bars 3 are fixedly connected to the top of the concrete foundation column 1 of the overcast part, the number of the pile head reinforcing steel bars 3 is a plurality of, and the size of the pile head reinforcing steel bars 3 is the same as the size of holes in the concrete installation column 2.
The steel bars 4 are installed on the outer wall of the concrete installing column 2 in a penetrating mode, the size of each steel bar 4 is matched with the size of a hole in the outer wall of the concrete installing column 2, the number of the steel bars 4 is two, and the hoisting steel wire ropes 5 are fixedly connected above the steel bars 4.
The annular separation strip 6 is fixedly arranged on the outer side of the concrete foundation column 1 of the superirrigation part, the rectangular separation strip 7 is fixedly arranged in the concrete foundation column 1 of the superirrigation part, the annular separation strip 6 is circular, and the rectangular separation strip 7 is rectangular.
The fixed reinforcement cage 10 is fixedly installed in the concrete installing column 2, the reinforcement cage hanging rings 8 are fixedly connected to the top of the fixed reinforcement cage 10, the number of the reinforcement cage hanging rings 8 is two, the inflatable plastic protection film 9 is fixedly installed on the top of the pile head reinforcement 3, and the number of the inflatable plastic protection film 9 is a plurality of.
Embodiment one:
the specific steps of the breaking step are as follows:
step one: before pouring a concrete filling pile, carrying out isolation treatment on the steel bars of the part to be broken above the pile top elevation of the pile body, wherein the steel bars are wrapped by tubular plastic films, the lower opening is sealed by winding and wrapping the steel bars with rubberized fabrics, the upper opening is sealed by using a wind pressure machine after air is injected into a tubular plastic sleeve through the upper opening, and the upper opening is sealed by using rope or knotting and other modes, so that the steel bars of the pile head are isolated from external concrete;
step two: at the elevation of the pile top, the periphery of the steel bar is surrounded by an inflatable plastic film to form a peripheral annular separation strip, and the inner side of the steel bar is formed by an inflatable plastic film to form an inner separation strip. The inner partition strips are fixed on pile head reinforcing steel bars by using iron wires, and the outer annular partition strips are fixed on pile top stiffening hoops or pile head reinforcing steel bars. The setting of pre-buried annular parting bead can protect later stage pile head concrete when cuting, and the crack downwardly extending destroys the risk of lower part pile body concrete, reduces the construction step of traditional circular cutting.
Step three: and burying a reinforcement cage and pouring concrete.
Step four: and after the concrete pouring is completed, excavating the earthwork to the elevation of the designed pile top, and exposing the ground at the superfilling part.
Step five: firstly, using steel drills to drill off concrete of the over-filling part at the pile top elevation position, and easily cutting off the pile head by utilizing the characteristic of small concrete sectional area at the position;
step six: and symmetrically drilling holes at one third of the upper end of the pile head, installing two steel bar hanging rings, hanging the cut pile head out by using a machine after a steel wire rope is tied, and completing pile head breaking work.
Embodiment two:
referring to the first figure, the inner and outer separation strips are all inflatable tubular plastic films, the outer ring separation strips are fixed once by using iron wires every other steel bar, and the inner side separation strips are bound and fixed with pile head steel bars at corners.
Referring to a second drawing, the steel bar is vertically inflated, the lower end of the steel bar is wound and sealed with the steel bar by using an adhesive tape, and the upper opening of the steel bar is sealed by using a rope or knotting mode. Pile head reinforcing steel bar with hanging bar is sleeved into plastic sleeve, then hanging bar is welded, and finally after inflation is completed, the reinforcing steel bar is wound by adhesive tape for sealing.
Referring to the third drawing, after the pile head isolation protective film is installed, the end part of the iron wire is far away from the surface of the plastic film, and the steel reinforcement cage is slowly and stably arranged, so that the plastic cloth is prevented from being broken due to collision between the steel reinforcement cage and a well wall or a pile casing. During pouring, the concrete guide pipe is slowly and stably pulled up so as to avoid the guide pipe from damaging the internal separation strip. In order to reduce the damage risk of the plastic film, the plastic film with better quality is adopted in the scheme.
Referring to the fourth drawing, after pouring is completed, due to the protection effect of the inflatable tubular protective sleeve, pile head steel bars and the concrete of the overstock part are completely separated, so that the binding force and friction force of the concrete of the overstock part to the pile head steel bars are reduced. The horizontal inflatable plastic film separation strip can play a role in separating concrete at the elevation of the pile top in the horizontal direction, reduces the sectional area of the concrete and is easier to cut off. 4 drill holes are drilled on the section of the ring pile at the broken part of the pile head, the drill bit used for drilling is in accordance with the diameter of the drill bit, the drill bit is inserted after the drill holes are completed, the lower drill bit is hit, and the pile head is broken by utilizing the principle of poor tensile strength of concrete.
Referring to the fifth drawing, drill holes are driven into steel bars at a position 1/3h away from the pile top, steel bars are used for fixing the steel bars at two sides, a backhoe excavator is used for lifting, and concrete in the pile top over-filling part is wholly adjusted.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A cast-in-place pile head breaking method comprises a concrete base column (1) of an over-pouring part and a breaking step, and is characterized in that: pile head reinforcing steel bars (3) are arranged in the concrete foundation column (1) of the superirrigation part, a concrete installation column (2) is arranged above the concrete foundation column (1) of the superirrigation part, steel bars (4) are arranged on the outer wall of the concrete installation column (2), hoisting steel wire ropes (5) are connected to the top of the concrete installation column (2), annular separation bars and inner rectangular separation bars are arranged at the pile top elevation position of the cast-in-place pile, a fixed reinforcement cage (10) is arranged in the concrete installation column (2), a reinforcement cage lifting ring (8) is arranged at the top of the fixed reinforcement cage (10), and an inflatable plastic protection film (9) is connected to the top of the pile head reinforcing steel bars (3).
2. A method of breaking a pile head of a cast-in-place pile according to claim 1, wherein: the concrete mounting column (2) is detachably mounted at the top of the concrete base column (1) of the superirrigation part, the size of the concrete base column (1) of the superirrigation part is matched with the size of the concrete mounting column (2), and a plurality of holes are formed in the concrete mounting column (2).
3. A method of breaking a pile head of a cast-in-place pile according to claim 1, wherein: pile head reinforcing steel bars (3) are fixedly connected to the top of the concrete foundation column (1) of the superirrigation part, the number of the pile head reinforcing steel bars (3) is a plurality of, and the size of the pile head reinforcing steel bars (3) is the same as the size of holes in the concrete installation column (2).
4. A method of breaking a pile head of a cast-in-place pile according to claim 1, wherein: the steel bars (4) are installed on the outer wall of the concrete installing column (2) in a penetrating mode, the size of each steel bar (4) is matched with the size of a hole in the outer wall of the concrete installing column (2), the number of the steel bars (4) is two, and the hoisting steel wire ropes (5) are fixedly connected above the steel bars (4).
5. A method of breaking a pile head of a cast-in-place pile according to claim 1, wherein: the annular separation strip (6) is fixedly arranged on the outer side of the concrete base column (1) of the superirrigation part, the rectangular separation strip (7) is fixedly arranged inside the concrete base column (1) of the superirrigation part, the annular separation strip (6) is circular, and the rectangular separation strip (7) is rectangular.
6. A method of breaking a pile head of a cast-in-place pile according to claim 1, wherein: the fixed reinforcement cage (10) is fixedly mounted in the concrete mounting column (2), the reinforcement cage hanging rings (8) are fixedly connected to the top of the fixed reinforcement cage (10), the number of the reinforcement cage hanging rings (8) is two, the inflatable plastic protection film (9) is fixedly mounted at the top of the pile head reinforcement (3), and the number of the inflatable plastic protection film (9) is a plurality of.
7. A method of breaking a pile head of a cast-in-place pile according to claim 1, wherein: the specific steps of the breaking step are as follows:
step one: before pouring a concrete filling pile, carrying out isolation treatment on the steel bars of the part to be broken above the pile top elevation of the pile body, wherein the steel bars are wrapped by tubular plastic films, the lower opening is sealed by winding and wrapping the steel bars with rubberized fabrics, the upper opening is sealed by using a wind pressure machine after air is injected into a tubular plastic sleeve through the upper opening, and the upper opening is sealed by using rope or knotting and other modes, so that the steel bars of the pile head are isolated from external concrete;
step two: at the elevation of the pile top, the periphery of the steel bar is surrounded by an inflatable plastic film to form a peripheral annular separation strip, and the inner side of the steel bar is formed by an inflatable plastic film to form an inner separation strip. The inner partition strips are fixed on pile head reinforcing steel bars by using iron wires, and the outer annular partition strips are fixed on pile top stiffening hoops or pile head reinforcing steel bars. The setting of pre-buried annular parting bead can protect later stage pile head concrete when cuting, and the crack downwardly extending destroys the risk of lower part pile body concrete, reduces the construction step of traditional circular cutting.
Step three: and burying a reinforcement cage and pouring concrete.
Step four: and after the concrete pouring is completed, excavating the earthwork to the elevation of the designed pile top, and exposing the concrete of the superfilling part to the ground.
Step five: firstly, using steel drills to drill off concrete of the over-filling part at the pile top elevation position, and easily cutting off the pile head by utilizing the characteristic of small concrete sectional area at the position;
step six: and symmetrically drilling holes at one third of the upper end of the pile head, installing two steel bar hanging rings, hanging the cut pile head out by using a machine after a steel wire rope is tied, and completing pile head breaking work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310926180.5A CN117051831A (en) | 2023-07-26 | 2023-07-26 | Pile head breaking method for cast-in-place pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310926180.5A CN117051831A (en) | 2023-07-26 | 2023-07-26 | Pile head breaking method for cast-in-place pile |
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| Publication Number | Publication Date |
|---|---|
| CN117051831A true CN117051831A (en) | 2023-11-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310926180.5A Pending CN117051831A (en) | 2023-07-26 | 2023-07-26 | Pile head breaking method for cast-in-place pile |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117569363A (en) * | 2024-01-16 | 2024-02-20 | 江苏神禹港务工程有限公司 | Connecting device and connecting method for PHC pipe pile and high-strength prestress bearing platform |
-
2023
- 2023-07-26 CN CN202310926180.5A patent/CN117051831A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117569363A (en) * | 2024-01-16 | 2024-02-20 | 江苏神禹港务工程有限公司 | Connecting device and connecting method for PHC pipe pile and high-strength prestress bearing platform |
| CN117569363B (en) * | 2024-01-16 | 2024-04-09 | 江苏神禹港务工程有限公司 | Pile foundation supergrouting concrete removing device and method thereof |
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