CN204551444U - Steel pipe tubaeform cast-in-situ major diameter pipe pile bilayer sleeve device in a kind of - Google Patents
Steel pipe tubaeform cast-in-situ major diameter pipe pile bilayer sleeve device in a kind of Download PDFInfo
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- CN204551444U CN204551444U CN201520205087.6U CN201520205087U CN204551444U CN 204551444 U CN204551444 U CN 204551444U CN 201520205087 U CN201520205087 U CN 201520205087U CN 204551444 U CN204551444 U CN 204551444U
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- steel pipe
- straight tube
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- tubaeform
- pile
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Abstract
The utility model discloses a kind of interior steel pipe tubaeform cast-in-situ major diameter pipe pile bilayer sleeve device, comprise outer steel pipe, interior steel pipe and flap valve shoe; Outer steel pipe and interior steel pipe are concentric drums, and upper end flushes; Outer steel pipe lower end connects flap valve shoe, and fits with the lower end of interior steel pipe and form cavity; Interior steel pipe comprises: be arranged on the first straight tube steel pipe on top, the tubaeform round table-like steel pipe of centre and the second straight tube steel pipe of bottom; The diameter of the second straight tube steel pipe is greater than the diameter of the first straight tube steel pipe; First straight tube steel pipe and the second straight tube steel pipe are connected to form one up and down by the middle round table-like steel pipe arranged.Effectively ensure that pile quality, avoid band stake cubsoil, prevent the generation of the phenomenons such as the wall that collapses, contracting wall and broken pile, and structure is simple, clear principle understand, cheap, have a extensive future, there is good economic technology benefit.
Description
Technical field
The utility model relates to a kind of interior steel pipe tubaeform cast-in-situ major diameter pipe pile bilayer sleeve device, belongs to technical field of civil engineering.
Background technology
At present, cast-in-place large-diameter thin-wall tubular pile has obtained at engineering fields such as road, municipal administration, port and pier and railways and has applied more and more widely.The cast-in-place large-diameter thin-wall tubular pile reinforced soft soil ground patented technology (patent No.: ZL 01273182.X and ZL02219218.) developed by Hohai University and construction technology (patent No.: CN 01367296A) are owing to having larger unit volume material specific surface area, thus material usage can be greatly reduced when the equal bearing capacity of single pile, save cost, improve cost performance, reach that cost is low, bearing capacity is high, the stability of ground increases and the positive effect such as foundation settlement reduction.
In practice of construction process, due to the thin-walled twin-layer steel sleeve that cast-in-place large-diameter thin-wall tubular pile adopts, to form cavity spacing consistent, certain pressure can be produced to stake cubsoil when sinking clad steel sleeve pipe, thus the phenomenon with stake cubsoil on producing in tube drawing process, thus the phenomenon such as broken pile, contracting wall can be produced.
Moreover because steel sleeve spacing inside and outside the bilayer that cast-in-place large-diameter thin-wall tubular pile employing is elongated is up and down less, pile body is thin wall shape, and the problem that upper end concrete therefore can be caused when bearing load and being larger to pulverize or ftracture, brings hidden danger to follow-up use.
Utility model content
Object: in order to overcome the deficiencies in the prior art, the utility model provides a kind of interior steel pipe tubaeform cast-in-situ major diameter pipe pile bilayer sleeve device.
Technical scheme: for solving the problems of the technologies described above, the technical solution adopted in the utility model is:
Steel pipe tubaeform cast-in-situ major diameter pipe pile bilayer sleeve device in a kind of, is characterized in that: comprise outer steel pipe, interior steel pipe and flap valve shoe; Outer steel pipe and interior steel pipe are concentric drums, and upper end flushes; Outer steel pipe lower end connects flap valve shoe, and fits with the lower end of interior steel pipe and form cavity;
Described interior steel pipe comprises: be arranged on the first straight tube steel pipe on top, the tubaeform round table-like steel pipe of centre and the second straight tube steel pipe of bottom; Wherein the diameter of the second straight tube steel pipe is greater than the diameter of the first straight tube steel pipe; First straight tube steel pipe and the second straight tube steel pipe are connected to form one up and down by the middle round table-like steel pipe arranged.
Steel pipe tubaeform cast-in-situ major diameter pipe pile bilayer sleeve device in described one, is characterized in that: described outer steel pipe is the consistent cylinder-like structure of upper and lower diameter.
Preferably, steel pipe tubaeform cast-in-situ major diameter pipe pile bilayer sleeve device in described one, is characterized in that: the length of described interior steel pipe is greater than outer steel pipe.
Preferably, steel pipe tubaeform cast-in-situ major diameter pipe pile bilayer sleeve device in described one, it is characterized in that: described outer diameter of steel tube is 1.0m-1.5m, second straight tube diameter of steel tube of interior steel pipe is 0.9m-1.4m, first straight tube diameter of steel tube is 0.6m-1.1m, and round table-like fastener for connection section diameter is from upper end minor diameter to lower end major diameter linear change.
Preferably, steel pipe tubaeform cast-in-situ major diameter pipe pile bilayer sleeve device in described one, is characterized in that: the length of described first straight tube steel pipe is 2.0-3.0m.
Beneficial effect: steel pipe tubaeform cast-in-situ major diameter pipe pile bilayer sleeve device in the one that the utility model provides, effectively ensure that pile quality, avoid band stake cubsoil, prevent the generation of the phenomenons such as the wall that collapses, contracting wall and broken pile, and structure is simple, clear principle understand, cheap, have a extensive future, there is good economic technology benefit; Have the following advantages: in the process that (1) this interior steel pipe tubaeform cast-in-situ major diameter pipe pile bilayer sleeve device sinks in vibrator effect, the round table-like steel pipe that interior steel pipe interlude connects top and the bottom different-diameter can produce a kind of pressure obliquely to stake cubsoil, a kind of densification reinforcement effect is served to stake cubsoil, thus effectively can reduce in tube drawing process the phenomenon occurring upper band stake cubsoil.(2) concrete tubular pile that this interior steel pipe tubaeform cast-in-situ major diameter pipe pile bilayer sleeve device can form in a lower end thin-walled, upper end the heavy wall that closes up after building mixed earth and completing, interlude is rounding mesa-shaped, because the concrete booster action in upper end and stage casing can make formed pile tube bearing capacity and integral rigidity greatly improve, avoid traditional cast-in-place large-diameter thin-wall tubular pile bear load larger time cause upper end concrete to pulverize or the problem of cracking, also effectively prevent the generation of broken pile, contracting wall simultaneously.
Accompanying drawing explanation
Fig. 1 is structural principle schematic diagram of the present utility model;
Fig. 2 is enforcement schematic diagram of the present utility model;
Fig. 3 is top view of the present utility model;
In figure: outer steel pipe 1, interior steel pipe 2, first straight tube steel pipe 21, round table-like steel pipe 22, second straight tube steel pipe 23, flap valve shoe 3, pile cap decking 4.
Detailed description of the invention
Below in conjunction with specific embodiment, the utility model is further described.
As shown in Figure 1 to Figure 3, steel pipe tubaeform cast-in-situ major diameter pipe pile bilayer sleeve device in a kind of, comprises outer steel pipe 1, interior steel pipe 2 and flap valve shoe 3 three part; Outer steel pipe 1 and interior steel pipe 2 are concentric drums, and upper end flushes, and binds by pile cap decking 4; Outer steel pipe 1 lower end connects flap valve shoe 3, and fits with the lower end of interior steel pipe 2 and form cavity;
Described interior steel pipe comprises: be arranged on the first straight tube steel pipe 21 on top, the tubaeform round table-like steel pipe 22 of centre and the second straight tube steel pipe 23 of bottom; Wherein the diameter of the second straight tube steel pipe 23 is greater than the diameter of the first straight tube steel pipe 21; First straight tube steel pipe 21 and the second straight tube steel pipe 23 are connected to form one by the middle round table-like steel pipe about 22 arranged.
Described outer steel pipe 1 is the consistent cylinder-like structure of upper and lower diameter.
The length of described interior steel pipe 2 is greater than outer steel pipe 1.
Preferably, steel pipe tubaeform cast-in-situ major diameter pipe pile bilayer sleeve device in described one, it is characterized in that: described outer steel pipe 1 diameter is 1.0m-1.5m, second straight tube steel pipe 23 diameter of interior steel pipe is 0.9m-1.4m, first straight tube steel pipe 21 diameter is 0.6m-1.1m, and round table-like steel pipe 22 linkage section diameter is from upper end minor diameter to lower end major diameter linear change.
Steel pipe tubaeform cast-in-situ major diameter pipe pile bilayer sleeve device in described one, is characterized in that: the length of described first straight tube steel pipe 21 is 2.0-3.0m.
Outer steel pipe 1 is cylindric, and elongated diameter is identical and be greater than interior steel pipe 2 diameter; Interior steel pipe 2 flare, its upper diameter is less, and lower diameter is comparatively large, and top and the bottom are connected by round table-like steel pipe 22; Outer steel pipe 1 lower end connects flap valve shoe 3, and upper end flushes with interior steel pipe 2, and fits with the tubaeform interior steel pipe 2 that lower end is grown partially and form cavity.
The above is only preferred embodiment of the present utility model; be noted that for those skilled in the art; under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (4)
1. a steel pipe tubaeform cast-in-situ major diameter pipe pile bilayer sleeve device in, is characterized in that: comprise outer steel pipe, interior steel pipe and flap valve shoe; Outer steel pipe and interior steel pipe are concentric drums, and upper end flushes; Outer steel pipe lower end connects flap valve shoe, and fits with the lower end of interior steel pipe and form cavity;
Described interior steel pipe comprises: be arranged on the first straight tube steel pipe on top, the tubaeform round table-like steel pipe of centre and the second straight tube steel pipe of bottom; Wherein the diameter of the second straight tube steel pipe is greater than the diameter of the first straight tube steel pipe; First straight tube steel pipe and the second straight tube steel pipe are connected to form one up and down by the middle round table-like steel pipe arranged.
2. steel pipe tubaeform cast-in-situ major diameter pipe pile bilayer sleeve device in one according to claim 1, is characterized in that: described outer steel pipe is the consistent cylinder-like structure of upper and lower diameter; The length of described interior steel pipe is greater than outer steel pipe.
3. steel pipe tubaeform cast-in-situ major diameter pipe pile bilayer sleeve device in one according to claim 1 and 2, it is characterized in that: described outer diameter of steel tube is 1.0m-1.5m, second straight tube diameter of steel tube of interior steel pipe is 0.9m-1.4m, first straight tube diameter of steel tube is 0.6m-1.1m, and round table-like fastener for connection section diameter is from upper end minor diameter to lower end major diameter linear change.
4. steel pipe tubaeform cast-in-situ major diameter pipe pile bilayer sleeve device in one according to claim 1, is characterized in that: the length of described first straight tube steel pipe is 2.0-3.0m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520205087.6U CN204551444U (en) | 2015-04-07 | 2015-04-07 | Steel pipe tubaeform cast-in-situ major diameter pipe pile bilayer sleeve device in a kind of |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520205087.6U CN204551444U (en) | 2015-04-07 | 2015-04-07 | Steel pipe tubaeform cast-in-situ major diameter pipe pile bilayer sleeve device in a kind of |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204551444U true CN204551444U (en) | 2015-08-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520205087.6U Expired - Fee Related CN204551444U (en) | 2015-04-07 | 2015-04-07 | Steel pipe tubaeform cast-in-situ major diameter pipe pile bilayer sleeve device in a kind of |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204551444U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105274987A (en) * | 2015-09-15 | 2016-01-27 | 河海大学 | Cast-in-place large-diameter pipe pile casing pipe and construction method |
-
2015
- 2015-04-07 CN CN201520205087.6U patent/CN204551444U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105274987A (en) * | 2015-09-15 | 2016-01-27 | 河海大学 | Cast-in-place large-diameter pipe pile casing pipe and construction method |
| CN105274987B (en) * | 2015-09-15 | 2017-05-31 | 河海大学 | A kind of cast-in-situ major diameter pipe pile sleeve pipe and construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150812 Termination date: 20180407 |