CN203487529U - Friction piles used for corrugated hollow steel pipe - Google Patents
Friction piles used for corrugated hollow steel pipe Download PDFInfo
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- CN203487529U CN203487529U CN201320435397.8U CN201320435397U CN203487529U CN 203487529 U CN203487529 U CN 203487529U CN 201320435397 U CN201320435397 U CN 201320435397U CN 203487529 U CN203487529 U CN 203487529U
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- steel pipe
- hollow steel
- concrete
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- waveform hollow
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Abstract
The utility model relates to friction piles used for a corrugated hollow steel pipe. The friction piles include the corrugated hollow steel pipe (1). The longitudinal cross section of the pipe wall of the corrugated hollow steel pipe is corrugated. Concrete pipes (2) are arranged outside the corrugated hollow steel pipe (1). According to the utility model, by arranging the corrugated hollow steel pipe (1) whose pipe wall having the corrugated longitudinal cross section, the contact area of the steel pipe and concrete is enlarged, so that friction force between the steel pipe and the concrete increases. Since the steel pipe is hollow, consumption of the concrete as well as dead weight of the pipes is reduced and bearing capability of the piles is improved. Besides, further maintenance and reinforcement of the piles can be performed by arranging stubs and burls and the like in the piles.
Description
Technical field
The utility model relates to concrete friction pile, relates in particular to a kind of waveform hollow steel pipe friction pile.
Background technology
Friction pile is by the frictional force of pile body surface and former geology soil, to bear the weight of superstructure, the pile center position of existing friction pile is concrete, because it does not contact with the earth, does not therefore have due effect, increase on the contrary the weight of friction pile, offset a part of frictional force.
Summary of the invention
The utility model is for the concrete in friction pile of the prior art centre, not only can not increase the frictional force of friction pile, increased on the contrary the weight of friction pile, offset a part of frictional force, it is the waveform hollow steel pipe of hollow that a kind of inside is provided, the structure of outside concreting, reduced on the one hand concrete consumption, reduced the deadweight of pile body simultaneously, increased the supporting capacity of pile body, the longitudinal cross-section of waveform hollow steel pipe tube wall is waveform, steel pipe and concrete contact area have been increased, increased frictional force, on the other hand, can be by entering in stake, by arranging the modes such as branch's stake, pile body is carried out to the waveform hollow steel pipe friction pile of secondary maintenance and reinforcing.
In order to solve the problems of the technologies described above, the utility model is solved by following technical proposals:
Waveform hollow steel pipe friction pile, comprises waveform hollow steel pipe, and the longitudinal cross-section of described waveform hollow steel pipe tube wall is waveform, and waveform hollow steel pipe arranges concrete pile outward, and waveform hollow steel pipe surface roughness is 50-1000 μ m.Waveform hollow steel pipe is for to form by corrugated sheet steel bending, and its longitudinal cross-section shape is also identical with the cross section of existing multiple waveforms steel plate, and waveform hollow steel pipe also can pass through formed by integrally casting moulding.The longitudinal cross-section of waveform hollow steel pipe tube wall is waveform, the shape of this waveform can be the corrugated sheet steel in existing random waveform cross section, due to the concavo-convex waveform of being shaped as of hollow steel pipe and outside concrete surface, it is similar and zigzag again, steel plate and concrete tooth tooth interlock, and improve the bonding strength between steel plate and concrete.
As preferably, the wall thickness of described waveform hollow steel pipe is 2-100mm.
As preferably, described waveform hollow steel pipe is multisection type splicing, and splicing port adopts concentric reducer socket, adopts bolt or electrical pads solid after socket.Connect the connection that technological requirement is very quick, succinct herein, this connection can also add sealing ring in concentric reducer overlaps seam, improves the sealing performance between waveform hollow steel pipe.
As preferably, described concrete contains reinforcing cage, and the inner side of reinforcing cage arranges fixedly reinforcing bar or the anti-eccentric guide rail reinforcing bar being connected with waveform hollow steel pipe.Eccentric in order to prevent waveform hollow steel pipe on the whole, fixedly reinforcing bar is horizontal bar dowel, is that waveform hollow steel pipe and reinforcing cage adopt while putting into simultaneously.Anti-eccentric guide rail reinforcing bar, is the longitudinal reinforcement up and down being first welded on reinforcing cage, and more than quantity Wei San road, this technique hollow steel pipe is put into after being.
As preferably, described waveform hollow steel pipe is provided with steel pipe services aperture, and concrete pile is provided with the concrete services aperture communicating with steel pipe services aperture.
As preferably, in described steel pipe services aperture and the concrete services aperture communicating with it, be provided with and extend outside concrete pile, the branch's stake contacting with the earth, the angle a of the outer wall of branch's stake and concrete pile is less than or equal to 90 °.Branch's stake is steel pipe, steel column or stub.
As preferably, described steel pipe services aperture and the concrete services aperture communicating with it arrange the burr outward, and the burr is concrete.
As preferably, the angle a of described branch's stake and the outer wall of concrete pile is less than or equal to 90 °.Angle a is the angle that the direction in soil is goed deep on the outer wall edge of branch's stake and concrete pile.
As preferably, in described concrete pile, be furnished with reinforcing cage.
Waveform hollow steel pipe friction pile construction method, comprises above-mentioned waveform hollow steel pipe friction pile, and step is as follows:
A, reinforcing cage and waveform hollow steel pipe are put into simultaneously to the stake hole of accomplishing fluently; Or first put reinforcing cage and put again waveform hollow steel pipe;
B, at waveform hollow steel pipe and stake, place reinforcing cage concreting between hole, generate concrete pile.
As preferably, also comprise c, after concrete pile solidifies, pump the water in waveform hollow steel pipe, and beat through hole in waveform hollow steel pipe, through hole is communicated with waveform hollow steel pipe and the earth;
D, in through hole, squeeze into branch's stake.
As preferably, also comprise c, after concrete pile solidifies, pump the water in waveform hollow steel pipe, and beat through hole in waveform hollow steel pipe, through hole is communicated with waveform hollow steel pipe and the earth;
D, by through hole high pressure pouring concrete, form the burr.
The utility model is by arranging the hollow hollow steel pipe of waveform, the longitudinal cross-section of waveform hollow steel pipe tube wall is waveform, steel pipe and concrete contact area have been increased, thereby having improved steel pipe and concrete frictional force, is hollow in steel pipe, has reduced the deadweight of concrete consumption and pile body, increased the supporting capacity of pile body, on the other hand, can be by entering in stake, the modes such as branch's stake, the burr of arranging are carried out secondary maintenance and reinforcing to pile body.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment 1.
Fig. 2 is the structural representation of waveform hollow steel pipe in the utility model.
Wherein 1-waveform hollow steel pipe, 2-concrete pile, 3-branch stake, 4-lower manhole, 5-the earth, 6-burr, 11-steel pipe services aperture, 21-concrete services aperture.
The specific embodiment
Below in conjunction with accompanying drawing 1 to accompanying drawing 2 and the specific embodiment, the utility model is described in further detail:
Waveform hollow steel pipe friction pile, as shown in Figure 1, 2, comprises waveform hollow steel pipe 1, and the longitudinal cross-section of described waveform hollow steel pipe 1 tube wall is waveform, the outer concrete pile 2 that arranges of waveform hollow steel pipe 1.The top of waveform hollow steel pipe friction pile is also provided with lower manhole 4.
Waveform hollow steel pipe 1 surface roughness is 50-1000 μ m, waveform hollow steel pipe 1 surface roughness is respectively 50 μ m, 80 μ m, 120 μ m, 160 μ m, 210 μ m, 310 μ m, 380 μ m, 420 μ m, 600 μ m, 820 μ m, 950 μ m, different roughness, different bonding strengths can be provided, roughness is larger, and waveform hollow steel pipe 1 is stronger with the adhesion of concrete or coating.The wall thickness of waveform hollow steel pipe 1 is 2-100mm.The wall thickness of waveform hollow steel pipe 1 can be any one in 8mm, 13mm, 18mm, 23mm, 34mm, 41mm, 45mm, 50mm, 62mm, 76.1mm, 82.9mm, 96mm.
Waveform hollow steel pipe 1, for multisection type splicing, splicing port adopts concentric reducer socket, adopts bolt or electrical pads solid after socket.Connect the connection that technological requirement is very quick, succinct herein, this connection can also add sealing ring in concentric reducer overlaps seam, improves the sealing performance between waveform hollow steel pipe 1.Waveform hollow steel pipe 1 is provided with steel pipe services aperture 11, and concrete pile 2 is provided with the concrete services aperture 21 communicating with steel pipe services aperture 11.
In steel pipe services aperture 11 and the concrete services aperture 21 that communicates with it, be provided with and extend outside concrete pile 2, the branch's stake 3 contacting with the earth 5, branch's stake 3 equals 60 ° with the angle a of the outer wall of concrete pile 2.Branch's stake is steel pipe.
Branch's stake 3 equals 90 ° with the angle a of the outer wall of concrete pile 2.In concrete pile 2, be furnished with reinforcing cage.In steel pipe services aperture 11 and concrete services aperture 21, be provided with and extend concrete pile 2 outer walls, the branch's stake 3 contacting with the earth 5.Branch's stake 3 is for being horizontally disposed with.When branch's stake 3 is horizontally disposed with, the length that branch's stake 3 of equal length contacts with soil outside concrete pile 2 is longer, and contact area is also larger, and the frictional force therefore producing is also larger, also maximum to the frictional force of friction pile integral body.
Waveform hollow steel pipe friction pile construction method, comprises above-mentioned waveform hollow steel pipe friction pile, and step is as follows:
A, reinforcing cage and waveform hollow steel pipe 1 are put into simultaneously to the stake hole of accomplishing fluently;
B, at waveform hollow steel pipe 1 and stake, place reinforcing cage concreting between hole, generate concrete pile 2.
Also comprise c, after concrete pile 2 solidifies, pump the water in waveform hollow steel pipe 1, and beat through hole in waveform hollow steel pipe 1, through hole is communicated with waveform hollow steel pipe 1 and the earth;
D, in through hole, squeeze into branch's stake 3.
Embodiment 2
Waveform hollow steel pipe friction pile, as shown in Figure 1, 2, comprises waveform hollow steel pipe 1, and the longitudinal cross-section of described waveform hollow steel pipe 1 tube wall is waveform, the outer concrete pile 2 that arranges of waveform hollow steel pipe 1.The wall thickness of waveform hollow steel pipe 1 is 2-30mm.
Waveform hollow steel pipe 1 is provided with steel pipe services aperture 11, and concrete pile 2 is provided with the concrete services aperture 21 communicating with steel pipe services aperture 11.In steel pipe services aperture 11 and the concrete services aperture 21 that communicates with it, be provided with and extend outside concrete pile 2, the branch's stake 3 contacting with the earth 5, branch's stake 3 is 80 ° with the angle a of the outer wall of concrete pile 2.Branch's stake is stub.
The outer burr 6 that arranges of steel pipe services aperture 11 and the concrete services aperture 21 communicating with it.The burr 6 is concrete.Branch's stake 3 is 60 ° with the angle of the outer wall of concrete pile 2.
In concrete pile 2, be furnished with reinforcing cage.Described concrete contains reinforcing cage, and the inner side of reinforcing cage arranges fixedly reinforcing bar or the anti-eccentric guide rail reinforcing bar being connected with waveform hollow steel pipe 1.Eccentric in order to prevent waveform hollow steel pipe on the whole, fixedly reinforcing bar is horizontal bar dowel, is that waveform hollow steel pipe and reinforcing cage adopt while putting into simultaneously.Anti-eccentric guide rail reinforcing bar, is the longitudinal reinforcement up and down being first welded on reinforcing cage, and more than quantity Wei San road, this technique hollow steel pipe is put into after being.
Waveform hollow steel pipe friction pile construction method, comprises above-mentioned waveform hollow steel pipe friction pile, and step is as follows:
A, in the stake of accomplishing fluently, first put reinforcing cage in hole and put again waveform hollow steel pipe 1;
B, at waveform hollow steel pipe 1 and stake, place reinforcing cage concreting between hole, generate concrete pile 2.
Also comprise c, after concrete pile 2 solidifies, pump the water in waveform hollow steel pipe 1, and beat through hole in waveform hollow steel pipe 1, through hole is communicated with waveform hollow steel pipe 1 and the earth;
D, in through hole, squeeze into branch's stake 3.One end that branch's stake 3 is arranged in concrete pile 2 is upper end 31, and one end that branch's stake 3 is arranged in the earth 5 is lower end 32, and the distance between 31Yu ground, upper end is less than the distance between 32Yu ground, lower end.
Branch's stake 3 is inserted by the steel pipe services aperture 11 on waveform hollow steel pipe 1, through the concrete services aperture 21 on concrete pile 2, enter in soil, because concrete services aperture 21 is for tiltedly establishing, therefore, after branch's stake 5 is inserted, the upper end 51 of branch's stake 5 with concrete pile 2 links from earth's surface close together, the lower end 51 of branch's stake 5 is distant from earth's surface with soil contact jaw.When friction pile occurs, the hard thing existing near the earth of branch's stake 5 of tiltedly establishing running into during as stone or rock, can block friction pile firmly, stops friction pile to continue sinking.
Meanwhile, after concrete pile 2 solidifies, pump the water in waveform hollow steel pipe 1, and beat through hole in waveform hollow steel pipe 1, through hole is communicated with waveform hollow steel pipe 1 and the earth; By through hole high pressure pouring concrete, form the burr 6.
In a word, the foregoing is only preferred embodiment of the present utility model, all equalizations of doing according to the utility model claim change and modify, and all should belong to the covering scope of the utility model patent.
Claims (7)
1. waveform hollow steel pipe friction pile, comprise waveform hollow steel pipe (1), it is characterized in that: the longitudinal cross-section of described waveform hollow steel pipe (1) tube wall is waveform, waveform hollow steel pipe (1) is outer arranges concrete pile (2), and waveform hollow steel pipe (1) surface roughness is 50-1000 μ m.
2. waveform hollow steel pipe friction pile according to claim 1, is characterized in that: described waveform hollow steel pipe (1), for multisection type splicing, splicing port adopts concentric reducer socket, adopts bolt or electrical pads solid after socket.
3. waveform hollow steel pipe friction pile according to claim 1, is characterized in that: described concrete contains reinforcing cage, and the inner side of reinforcing cage arranges fixedly reinforcing bar or the anti-eccentric guide rail reinforcing bar being connected with waveform hollow steel pipe (1).
4. waveform hollow steel pipe friction pile according to claim 1, it is characterized in that: described waveform hollow steel pipe (1) is provided with steel pipe services aperture (11), concrete pile (2) is provided with the concrete services aperture (21) communicating with steel pipe services aperture (11).
5. waveform hollow steel pipe friction pile according to claim 4, it is characterized in that: in described steel pipe services aperture (11) and the concrete services aperture (21) communicating with it, be provided with and extend outside concrete pile (2), the branch's stake (3) contacting with the earth (5), branch's stake (3) is less than or equal to 90 ° with the angle a of the outer wall of concrete pile (2).
6. waveform hollow steel pipe friction pile according to claim 4, is characterized in that: described steel pipe services aperture (11) and the concrete services aperture (21) communicating with it are outer arranges the burr (6), and the burr (6) is concrete.
7. waveform hollow steel pipe friction pile according to claim 1, is characterized in that: described concrete pile is furnished with reinforcing cage in (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320435397.8U CN203487529U (en) | 2013-07-18 | 2013-07-18 | Friction piles used for corrugated hollow steel pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320435397.8U CN203487529U (en) | 2013-07-18 | 2013-07-18 | Friction piles used for corrugated hollow steel pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203487529U true CN203487529U (en) | 2014-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320435397.8U Expired - Fee Related CN203487529U (en) | 2013-07-18 | 2013-07-18 | Friction piles used for corrugated hollow steel pipe |
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| CN (1) | CN203487529U (en) |
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2013
- 2013-07-18 CN CN201320435397.8U patent/CN203487529U/en not_active Expired - Fee Related
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140319 Termination date: 20180718 |
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| CF01 | Termination of patent right due to non-payment of annual fee |