CN207143929U - A kind of Dragsaw type steel-pipe pile - Google Patents
A kind of Dragsaw type steel-pipe pile Download PDFInfo
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- CN207143929U CN207143929U CN201720930619.1U CN201720930619U CN207143929U CN 207143929 U CN207143929 U CN 207143929U CN 201720930619 U CN201720930619 U CN 201720930619U CN 207143929 U CN207143929 U CN 207143929U
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Abstract
A kind of Dragsaw type steel-pipe pile is the utility model is related to, is designed to promote Piling speed.The utility model Dragsaw type steel-pipe pile, steel pipe pile body, the pile crown being connected with the steel pipe pile body, the piling end of the pile crown is laciniation.The utility model Dragsaw type steel-pipe pile, when half reciprocating rotary is driven piles, moved back and forth using between the sawtooth of stake end come quick fragment earth or hard interbedded layer.
Description
Technical field
It the utility model is related to a kind of Dragsaw type steel-pipe pile.
Background technology
Steel-pipe pile is that China's civil construction develops rapidly, and it is mainly used as the basis in the engineering constructions such as bunder, mesh
Preceding steel-pipe pile during piling construction, although typically further improving the superiority of press-in using static pressure method, durable resistance carries
It is high, smaller to surrounding environment influence, greatly shorten the construction period, it is but hard being pressed with the grains of sand layer laccolite that is mixed with cobble etc.
The barrier of reinforced concrete structure be present in geology or underground, so as to increase end resistance, can cause bigger vibration and
Piling speed, certain soil compaction amount can be also produced in piling, the environment of surrounding can be impacted.
The defects of for above-mentioned prior art, is, it is necessary to propose that one kind can reduce pile side friction and end resistance, and can
Quick penetration hard interbedded layer, the method for Piling speed can be promoted.
Utility model content
In order to solve the above technical problems, the purpose of this utility model, which is to provide one kind, can reduce pile side friction and stake end
Resistance, the Dragsaw type steel-pipe pile of and can quick penetration hard interbedded layer.
To reach above-mentioned purpose of utility model, the utility model Dragsaw type steel-pipe pile, including：Steel pipe pile body, with the steel
The pile crown of pile tube body connection, the piling end of the pile crown is laciniation.
Further, the laciniation is outwards chamfer by the side wall of pile crown, the space that the pile crown side wall fences up
To be interior, side wall is outer using the external space.
Further, the angle between the laciniation and the pile crown side wall is α, and α is 30 ° ~ 45 °
Further, the laciniation is fleam-tooth, and the drift angle of the fleam-tooth is 30 °
Further, the steel pipe pile body and the pile crown are split-type structural.
Further, the side wall of the steel pipe pile body is provided with internal thread, and the pile crown is provided with external screw thread, the pile crown
It is set in the pile crown, the pile crown passes through the embedded connection of screw thread rotation with the pile crown.
Further, the steel pipe pile body is structure as a whole with the pile crown.
Compared with prior art, the utility model Dragsaw type steel-pipe pile has advantages below：
The jagged pile crown of steel pipe pile body connection, is designed to isosceles zigzag, when mainly considering reciprocating rotation, both sides
Suffered frictional resistance be identical.
Angle between laciniation and the pile crown side wall is α, and α is 30 ° ~ 45 ° the most suitable, both can guarantee that sawtooth
Hardness also can guarantee that its penetration power.
Triangle sawtooth in laciniation is isosceles triangle, and the drift angle of triangle sawtooth is 30 °, mainly for ensureing to saw
The hardness of tooth also can guarantee that its penetration power.
When half reciprocating rotary is driven piles, moved back and forth using between the sawtooth of stake end come quick fragment earth or hard interbedded layer.Both
Pile side friction and end resistance, and can quick penetration hard interbedded layer can be reduced, and then the method for Piling speed can be promoted, shortens work
Phase.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model Dragsaw type steel-pipe pile embodiment 1；
Fig. 2 is the structural representation of the utility model Dragsaw type steel-pipe pile embodiment 2；
Fig. 3 is the floor map of the utility model Dragsaw type steel-pipe pile Fig. 2 pile crowns；
Fig. 4 is the diagrammatic cross-section of the utility model Dragsaw type steel-pipe pile Fig. 2 pile crowns；
Fig. 5 the utility model Dragsaw type steel-pipe pile Fig. 2 steel pipes pile body rotates the schematic diagram of embedded connection with pile crown.
Embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is used to illustrate the utility model, but is not limited to the scope of the utility model.
Embodiment 1
As shown in figure 1, the present embodiment Dragsaw type steel-pipe pile, including：Steel pipe pile body, the stake being connected with the steel pipe pile body
Head, the piling end of the pile crown is laciniation 1.In the present embodiment, between the laciniation and the pile crown side wall
Angle be α, α is 30 °.
The present embodiment operation instruction, the laciniation of pile crown end set, when half reciprocating rotary is driven piles, utilize stake end
Moved back and forth between sawtooth and come quick fragment earth or hard interbedded layer.In the present embodiment, steel pipe pile body and sawtooth pile crown are integral.
Advantage is directly to use, and on-site construction time is reduced without installing；Shortcoming can not be reused after an end sawtooth damages.
Embodiment 2
As shown in Fig. 2 to 5, the present embodiment Dragsaw type steel-pipe pile, including：Steel pipe pile body 2, it is connected with the steel pipe pile body
Pile crown, the piling end of the pile crown is laciniation 1.As different from Example 1：Steel pipe pile body described in the present embodiment and institute
It is split-type structural to state pile crown.The side wall of the steel pipe pile body is provided with internal thread, and the pile crown is provided with external screw thread, the stake
Headgear is located in the pile crown, and the pile crown passes through the embedded connection of screw thread rotation with the pile crown.In the present embodiment, institute
It is α to state the angle between laciniation and the pile crown side wall, and α is 45 °.
The present embodiment operation instruction, need steel pipe pile body and sawtooth pile crown during site operation by rotating embedded company
Connect.Advantage is when being damaged when piling in stake tooth, can recycle steel-pipe pile by changing tooth, save material environment friendly, shortcoming
It is to need to lose time to combine early stage in piling.
In the various embodiments described above, the laciniation is outwards chamfer by the side wall of pile crown, be prefabricated in the factory steel-pipe pile when,
Zigzag fashion is del from plan, and is then to chamfer from inside to outside in terms of the profile of stake.
In the various embodiments described above, the angle between laciniation and the pile crown side wall is α, and α is 30 ° ~ 45 ° and closed the most
It is suitable, it both can guarantee that the hardness of sawtooth or can guarantee that its penetration power.
In the various embodiments described above, the triangle sawtooth in the laciniation is isosceles triangle, the base angle of triangle sawtooth
For 30 °
Described above is only preferred embodiment of the present utility model, is not limited to the utility model, it is noted that
For those skilled in the art, on the premise of the utility model technical principle is not departed from, can also do
Go out some improvement and modification, these improvement and modification also should be regarded as the scope of protection of the utility model.
Claims (7)
1. a kind of Dragsaw type steel-pipe pile, including：Steel pipe pile body, the pile crown being connected with the steel pipe pile body, it is characterised in that described
The piling end of pile crown is laciniation.
2. Dragsaw type steel-pipe pile according to claim 1, it is characterised in that the laciniation from pile crown side wall to
Outer beveling, the space that the pile crown side wall fences up are interior, and side wall is outer using the external space.
3. Dragsaw type steel-pipe pile according to claim 2, it is characterised in that the laciniation and the pile crown side wall
Between angle be α, α is 30 ° ~ 45 °.
4. Dragsaw type steel-pipe pile according to claim 1, it is characterised in that the laciniation is sawed for isosceles triangle
Tooth, the drift angle of the fleam-tooth is 30 °.
5. Dragsaw type steel-pipe pile according to claim 1, it is characterised in that the steel pipe pile body and the pile crown are split
Formula structure.
6. Dragsaw type steel-pipe pile according to claim 5, it is characterised in that the side wall of the steel pipe pile body is provided with interior spiral shell
Line, the pile crown are provided with external screw thread, and the pile crown is set in the pile crown, and the pile crown passes through spiral shell with the pile crown
Line rotates embedded connection.
7. Dragsaw type steel-pipe pile according to claim 1, it is characterised in that the steel pipe pile body is integrated with the pile crown
Structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720930619.1U CN207143929U (en) | 2017-07-28 | 2017-07-28 | A kind of Dragsaw type steel-pipe pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720930619.1U CN207143929U (en) | 2017-07-28 | 2017-07-28 | A kind of Dragsaw type steel-pipe pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207143929U true CN207143929U (en) | 2018-03-27 |
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ID=61673609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720930619.1U Active CN207143929U (en) | 2017-07-28 | 2017-07-28 | A kind of Dragsaw type steel-pipe pile |
Country Status (1)
| Country | Link |
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| CN (1) | CN207143929U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111119168A (en) * | 2020-01-03 | 2020-05-08 | 广西盛虎建筑科技有限公司 | Post-grouting construction method for spinning enlarged-head steel pipe pile |
| CN111549764A (en) * | 2020-05-29 | 2020-08-18 | 中铁十一局集团第五工程有限公司 | Trestle steel pipe pile bottom anchoring joint |
-
2017
- 2017-07-28 CN CN201720930619.1U patent/CN207143929U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111119168A (en) * | 2020-01-03 | 2020-05-08 | 广西盛虎建筑科技有限公司 | Post-grouting construction method for spinning enlarged-head steel pipe pile |
| CN111549764A (en) * | 2020-05-29 | 2020-08-18 | 中铁十一局集团第五工程有限公司 | Trestle steel pipe pile bottom anchoring joint |
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