CN110965553A - High-efficient broken pile head device - Google Patents
High-efficient broken pile head device Download PDFInfo
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- CN110965553A CN110965553A CN201911332006.8A CN201911332006A CN110965553A CN 110965553 A CN110965553 A CN 110965553A CN 201911332006 A CN201911332006 A CN 201911332006A CN 110965553 A CN110965553 A CN 110965553A
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- conveying pipe
- pipe
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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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- 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)
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- 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 discloses a high-efficiency pile head crushing device which comprises a conveying pipe, a high-pressure source communicated with the input end of the conveying pipe and a communicating piece arranged on the conveying pipe, wherein the communicating piece is provided with communicating ports distributed along the radial direction of the conveying pipe and/or communicating ports distributed towards the input end of the conveying pipe in an inclined mode. The invention mainly utilizes the wind pressure or the water pressure to fill the cavity with the super-irrigation part, reduces the strength of the super-irrigation part and achieves the purpose of conveniently crushing the super-irrigation part.
Description
Technical Field
The invention relates to the technical field of pile head breaking, in particular to a high-efficiency pile head breaking device.
Background
In the construction of engineering projects such as building engineering, bridge engineering, urban rail transit and the like, the cast-in-place pile technology is widely applied, and the pile top elevation of the cast-in-place pile is regulated to be at least 0.5m higher than the designed elevation in the acceptance standard of construction quality of foundation engineering of building foundations (GB 50208-2002); the technical specification of the building pile foundation) of JCJ94-2008, concrete over-grouting height of different types of cast-in-place piles is also specified.
The specification is that the large amount of concrete for one-time pouring of pile foundation is considered, or the foundation pile of concrete is poured underwater, bubbles or pores in the concrete rise to the part of the pile top in the vibrating process, the pile top is floating slurry, slurry or mortar mixture in underwater concrete pouring and the like in a certain range, and the concrete floating slurry is thicker and lower in strength under the general condition and cannot meet the design requirement. In order to ensure the concrete strength of the pile head part, the floating slurry part is removed, and meanwhile, the pile head is broken to require that the concrete on the top surface of the pile is complete, the surface is smooth, the center is slightly convex, a reinforcing steel bar protective layer is not damaged, and the like, so that the pile head is chiseled to meet the standard requirement.
In actual construction, the condition that the height of the cast-in-place pile concrete exceeds the standard requirement often occurs, so that the cut-off of the over-cast part has large workload.
The pile head breaks away common pneumatic picks, concrete splitting machine, manual digging, explosive blasting, micro-explosion technology and the like, during construction, noise, dust and vibration are large, the influence on the environment is large, meanwhile, the labor intensity of operators is high, the health of the operators is easily influenced after long-term operation, the construction efficiency is low, and the construction cost is high.
Patent document with the publication number of CN102425159B discloses a pile cutting construction method for a cast-in-place pile, which mainly comprises sleeving a pile casing with a groove on a hole top before concrete pouring of a pile body of the cast-in-place pile; after an isolation sleeve is arranged on a vertical main reinforcement of a reinforcement cage at the top of a cast-in-place pile, placing the reinforcement cage; pouring concrete into the pouring pile to form a pile, implanting a hanging ring at the top of the super-pouring pile, and removing the pile casing with the groove after the concrete curing requirement is met; after the pile body reaches 70% of the design strength standard value, drilling a hole at the position of the pile body corresponding to the pile casing groove to form a pouring hole above the design elevation of the pile top; and (3) filling a crushing agent into the hole, wherein the crushing agent plays an expansion role and cuts off the pile head of the over-poured part by combining with a thin synchronous jack placed in the groove.
The scheme has the disadvantages that holes still need to be punched in the pile cutting process, a thin synchronous jack needs to be combined to cut off the pile head of the over-irrigation part, the investment is more, and the operation is inconvenient; especially, when the pile head of the cast-in-place pile poured with the lattice column is cut off, the problem of difficulty in cleaning concrete inside the lattice column by using the scheme or the traditional crushing method is solved because holes on four sides of the lattice column are narrow.
Disclosure of Invention
The invention aims to provide an efficient pile head crushing device, which utilizes high-pressure fluid to be injected into super-poured concrete to fill a cavity with a super-poured part, so that a pile head is easy to crush and is convenient for people to clean on site.
The above object of the present invention is achieved by the following technical solutions:
the utility model provides a broken pile head device of high efficiency, includes the conveyer pipe, the high pressure source that is linked together with the conveyer pipe input, installs the intercommunication piece on the conveyer pipe, set up the intercommunication mouth along the radial distribution of conveyer pipe on the intercommunication piece, and/or towards the intercommunication mouth of conveyer pipe input slope distribution.
By adopting the technical scheme, the normal construction of the cast-in-place pile comprises positioning and drilling, hoisting the reinforcement cage and pouring underwater concrete, before the concrete is finally set, mechanically lowering the conveying pipe to vertically insert the conveying pipe into the super-pouring part of the pile hole until the communicating piece is positioned 10-20cm above the elevation of the pile top, and stopping; the high-pressure source is connected with the conveying pipe, high-pressure fluid is introduced into the conveying pipe, the high-pressure fluid enters the super-irrigation part through the conveying pipe and the communicating piece, and the conveying pipe is slowly lifted while the high-pressure fluid is introduced until the high-pressure fluid is separated from the super-irrigation part and is lifted out of the pile hole; after the cast-in-place pile is finally formed, the super-cast part is broken manually or mechanically. So, utilize high-pressure fluid to surpass and irritate the part and pressurize, make its inside be full of the cavity, effectively reduced and surpassed partial concrete strength of irritating, during the broken super partial of irritating in later stage, it is little to the bored concrete pile top, vibration, noise, dust etc. also can effectively be improved, and is less to the environmental impact, and it is faster to abolish efficiency.
The invention is further configured to: the communicating piece comprises a spray head, and the spray head is fixedly or rotatably arranged on the conveying pipe.
Through adopting above-mentioned technical scheme, adopt the standard component to communicate with each other the conveyer pipe inside and outside, make things convenient for the later maintenance to change, guarantee high-pressure fluid's transport efficiency.
The invention is further configured to: the communicating piece comprises a dredging pipe, the axis of the dredging pipe is perpendicular to the axis of the conveying pipe, and the dredging pipe and the conveying pipe are fixedly or rotatably arranged on the conveying pipe.
By adopting the technical scheme, a dredging pipe can be specially configured for the conveying pipe according to the condition so as to ensure the pressurizing effect of high-pressure fluid.
The invention is further configured to: the conveying pipe is formed by splicing a plurality of sections of pipes.
The invention is further configured to: the high-pressure source is a high-pressure fan or a high-pressure water pump.
By adopting the technical scheme, the high-pressure source is connected to the input end of the conveying pipe through the rubber hose, one or more mixed high-pressure fluids such as water, air, foaming agent and the like are injected into the conveying pipe, the super-irrigation part is filled with the cavity, and the strength of the super-irrigation part is reduced.
The invention is further configured to: at least two centralizers are distributed on the conveying pipe along the axial line.
By adopting the technical scheme, the centralizer limits the radial displacement of the conveying pipe in the pile hole, so that the conveying pipe is inserted into the center of the over-irrigation part as far as possible, the over-irrigation part is fully provided with holes from inside to outside, and the strength of the over-irrigation part is reduced.
The invention is further configured to: one side that the communicating piece deviates from the conveyer pipe is provided with the drill bit of back taper.
Through adopting above-mentioned technical scheme, at the in-process that the conveyer pipe was transferred, the drill bit can conveniently break the concrete of the part of irritating excessively, makes the conveyer pipe insert smoothly in the part of irritating excessively.
The invention is further configured to: the communication port of the communication member is temporarily sealed.
Through adopting above-mentioned technical scheme, the in-process of conveyer pipe is transferred to machinery, seals the intercommunication mouth of intercommunication piece temporarily, avoids the intercommunication mouth to be blockked up by the concrete, influences follow-up pressurizing process.
In conclusion, the invention has the following beneficial effects:
1. the invention mainly utilizes the wind pressure or the water pressure to fill the cavity with the super-irrigation part, reduces the strength of the super-irrigation part and achieves the purpose of conveniently crushing the super-irrigation part;
2. the centralizer is arranged on the conveying pipe and limits the radial displacement of the conveying pipe in the pile hole, so that the conveying pipe is inserted into the center of the over-irrigation part as far as possible, the over-irrigation part is pressurized from inside to outside, and the inner cavity of the over-irrigation part is denser, so that the strength of the over-irrigation part is effectively reduced.
Drawings
Fig. 1 is a schematic structural diagram of the embodiment.
In the figure, 1, a delivery pipe; 2. dredging the pipe; 21. dredging the opening; 3. a centralizer; 4. a drill bit.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example (b): a high-efficiency pile head crushing device is shown in figure 1 and comprises a steel conveying pipe 1, wherein a plurality of sections of pipes are spliced through threads to form the conveying pipe 1, one end of the conveying pipe 1 is arranged to be open, an input end is arranged, the other end of the conveying pipe is arranged to be an output end, a communicating piece is installed, a communicating port is formed in the communicating piece, and the conveying pipe 1 is communicated with the inside and the outside through the communicating piece.
The communicating piece can be a spray head, spray holes on the spray head are distributed along the radial direction of the conveying pipe 1 and/or are distributed towards the input end of the conveying pipe 1 in an inclined mode, the spray head can be fixedly installed on the conveying pipe 1, a rotary spray head can be selected for use, and the rotary spray head can rotate relative to the conveying pipe 1.
Or, a dredging pipe 2 may be configured for the conveying pipe 1, an axis of the dredging pipe 2 is perpendicular to an axis of the conveying pipe 1, and the dredging pipe 2 is welded and fixed on the output end of the conveying pipe 1, or rotatably mounted on the output end of the conveying pipe 1 through a structure such as a bearing. The dredging pipe 2 is provided with dredging holes 21 distributed along the radial direction of the conveying pipe 1 and/or dredging holes 21 distributed towards the input end of the conveying pipe 1 in an inclined mode.
The pile head crushing device further comprises a high-pressure source, wherein the high-pressure source can be a high-pressure fan or a high-pressure water pump and the like, the high-pressure source is connected to the input end of the conveying pipe 1 through a rubber hose, one or more mixed high-pressure fluids such as water, air, foaming agent and the like are injected into the conveying pipe 1, and the high-pressure fluids can flow to the outside of the conveying pipe 1 through the communicating piece.
Normally constructing a cast-in-place pile, which comprises positioning and drilling, hoisting a reinforcement cage and pouring underwater concrete, mechanically lowering a conveying pipe 1 to be vertically inserted into the super-cast part of the pile hole before the concrete is finally set (within 5-8 hours) until a communicating piece is positioned 10-20cm above the elevation of the pile top, and stopping; the high-pressure source is connected with the delivery pipe 1, high-pressure fluid is introduced into the delivery pipe 1, the high-pressure fluid enters the super-irrigation part through the delivery pipe 1 and the communicating piece, and the delivery pipe 1 is slowly lifted while being introduced with the high-pressure fluid until being separated from the super-irrigation part and lifted out of a pile hole; taking 0.5m as an example of the super irrigation part, the lifting time of the conveying pipe 1 is 2-3min, the lifting speed of the conveying pipe 1 is related to the pile diameter, the larger the pile diameter is, the slower the lifting speed is, in short, the lifting speed of the conveying pipe 1 is not higher than 0.5cm/s, and meanwhile, the pressure of high-pressure fluid is kept at 10-15 MPa; after the cast-in-place pile is finally formed, the super-cast part is broken manually or mechanically.
Therefore, the high-pressure fluid is used for pressurizing the super-irrigation part, so that the super-irrigation part is filled with the cavity, the concrete strength of the super-irrigation part is effectively reduced, the influence on the pile top of the cast-in-place pile is small when the super-irrigation part is crushed in the later period, the vibration, the noise, the dust and the like are effectively improved, the influence on the environment is small, and the breaking efficiency is higher; even when the super-irrigation part of concrete in the lattice column is broken, the concrete can be easily broken; if the pressure of the high-pressure fluid is enough, the high-pressure fluid is enough to cut the super irrigation part, even the super irrigation part is scattered, and the post pile cutting process is simpler, more convenient and faster.
The invention mainly utilizes the wind pressure or the water pressure to fill the cavity with the super-irrigation part, reduces the strength of the super-irrigation part and achieves the purpose of conveniently crushing the super-irrigation part.
The pressurizing effect of the high-pressure fluid on the super-irrigation part is directly related to the position of the conveying pipe 1 in the super-irrigation part, and the closer the conveying pipe 1 is to the center of the super-irrigation part, the better the pressurizing effect is; therefore, at least two centralizers 3 or positioning rings and other structures with similar functions are uniformly distributed on the conveying pipe 1 along the axial line, the size of each centralizer 3 is matched with the pile hole to limit the radial displacement of the conveying pipe 1 in the pile hole, so that the conveying pipe 1 is inserted into the center of the super-irrigation part as far as possible, the hollow holes are fully distributed in the super-irrigation part from inside to outside, and the strength of the super-irrigation part is reduced.
One side that deviates from conveyer pipe 1 at the communicating piece is provided with the drill bit 4 of back taper, and at the in-process that conveyer pipe 1 transferred, drill bit 4 can conveniently break the concrete that surpasses irritates the part, makes conveyer pipe 1 insert smoothly and surpasses irritate the part.
The in-process of conveyer pipe 1 is transferred to machinery, seals the intercommunication mouth of intercommunication piece temporarily, avoids the intercommunication mouth to be blockked up by the concrete, influences follow-up pressurizing process.
The pipe 1 can be lowered or lifted by a small auger or other mechanical equipment.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Claims (8)
1. The utility model provides a high-efficient broken pile head device which characterized in that: including conveyer pipe (1), the high pressure source that is linked together with conveyer pipe (1) input, install the connecting piece on conveyer pipe (1), set up the intercommunication mouth along conveyer pipe (1) radial distribution on the connecting piece, and/or towards the intercommunication mouth of conveyer pipe (1) input slope distribution.
2. The efficient pile head crushing device according to claim 1, wherein: the communicating piece comprises a spray head, and the spray head is fixedly or rotatably arranged on the conveying pipe (1).
3. The efficient pile head crushing device according to claim 1, wherein: the communicating piece comprises a dredging pipe (2), the axis of the dredging pipe (2) is perpendicular to the axis of the conveying pipe (1), and the dredging pipe (2) and the conveying pipe (1) are fixedly or rotatably arranged on the conveying pipe (1).
4. The efficient pile head crushing device according to claim 1, wherein: the conveying pipe (1) is formed by splicing a plurality of sections of pipes.
5. The efficient pile head crushing device according to claim 1, wherein: the high-pressure source is a high-pressure fan or a high-pressure water pump.
6. The efficient pile head crushing device according to claim 1, wherein: at least two centralizers (3) are distributed on the conveying pipe (1) along the axis.
7. The efficient pile head crushing device according to claim 1, wherein: one side that the communicating piece deviates from conveyer pipe (1) is provided with drill bit (4) of back taper.
8. The efficient pile head crushing device according to claim 1, wherein: the communication port of the communication member is temporarily sealed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911332006.8A CN110965553A (en) | 2019-12-21 | 2019-12-21 | High-efficient broken pile head device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911332006.8A CN110965553A (en) | 2019-12-21 | 2019-12-21 | High-efficient broken pile head device |
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| Publication Number | Publication Date |
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| CN110965553A true CN110965553A (en) | 2020-04-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911332006.8A Pending CN110965553A (en) | 2019-12-21 | 2019-12-21 | High-efficient broken pile head device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111794231A (en) * | 2020-07-16 | 2020-10-20 | 中铁二局集团有限公司 | Device and method for breaking foundation pile head |
| CN112376554A (en) * | 2020-12-25 | 2021-02-19 | 中国二十冶集团有限公司 | Cast-in-place pile super-cast concrete construction method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58168720A (en) * | 1982-03-31 | 1983-10-05 | Shimizu Constr Co Ltd | Treatment of head of on-site pile |
| JPS61191717A (en) * | 1985-02-20 | 1986-08-26 | Mitsui Constr Co Ltd | Disposing device for extra-banking concrete of cast-in-place pile |
| FR2668514A1 (en) * | 1990-10-29 | 1992-04-30 | Sol Cie Indle | Method and device for chopping the tops off concrete constructions |
| CN1727580A (en) * | 2005-05-31 | 2006-02-01 | 刘思谋 | File head broken by water injection |
| CN104099932A (en) * | 2014-07-10 | 2014-10-15 | 郑州市市政工程总公司 | Breaking device and breaking method of pile head of underwater concrete pile |
| CN108999188A (en) * | 2018-08-30 | 2018-12-14 | 中建五局土木工程有限公司 | Crushing device, restructuring bankrupt and the application of cast-in-situ bored pile pile crown |
-
2019
- 2019-12-21 CN CN201911332006.8A patent/CN110965553A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58168720A (en) * | 1982-03-31 | 1983-10-05 | Shimizu Constr Co Ltd | Treatment of head of on-site pile |
| JPS61191717A (en) * | 1985-02-20 | 1986-08-26 | Mitsui Constr Co Ltd | Disposing device for extra-banking concrete of cast-in-place pile |
| FR2668514A1 (en) * | 1990-10-29 | 1992-04-30 | Sol Cie Indle | Method and device for chopping the tops off concrete constructions |
| CN1727580A (en) * | 2005-05-31 | 2006-02-01 | 刘思谋 | File head broken by water injection |
| CN104099932A (en) * | 2014-07-10 | 2014-10-15 | 郑州市市政工程总公司 | Breaking device and breaking method of pile head of underwater concrete pile |
| CN108999188A (en) * | 2018-08-30 | 2018-12-14 | 中建五局土木工程有限公司 | Crushing device, restructuring bankrupt and the application of cast-in-situ bored pile pile crown |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111794231A (en) * | 2020-07-16 | 2020-10-20 | 中铁二局集团有限公司 | Device and method for breaking foundation pile head |
| CN112376554A (en) * | 2020-12-25 | 2021-02-19 | 中国二十冶集团有限公司 | Cast-in-place pile super-cast concrete construction method |
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Application publication date: 20200407 |
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