CN107842031A - A kind of composite pile foundation of large bearing capacity - Google Patents
A kind of composite pile foundation of large bearing capacity Download PDFInfo
- Publication number
- CN107842031A CN107842031A CN201711171044.0A CN201711171044A CN107842031A CN 107842031 A CN107842031 A CN 107842031A CN 201711171044 A CN201711171044 A CN 201711171044A CN 107842031 A CN107842031 A CN 107842031A
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- China
- Prior art keywords
- pile
- bearing capacity
- pile body
- hollow cavity
- cone
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
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- Engineering & Computer Science (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)
- Structural Engineering (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The present invention provides a kind of composite pile foundation of large bearing capacity, include the pile body of cone, the pile body is the reinforced concrete pile with hollow cavity, hollow cavity is conical bores, the upper end of the hollow cavity be provided be all cone cement mortar stake as inner core, the reinforced concrete pile is coaxially disposed with cement mortar stake, and the lower end of the hollow cavity includes provided with prestressing force expansion head, prestressing force expansion head：The Access Division of cone, anti-punching shear bar, and tip, the present invention can be effectively increased the bearing capacity and stability of pile body, improve pile foundation quality and resistance to plucking, make pile foundation firmer.
Description
Technical field
The present invention relates to concrete works, more particularly to a kind of composite pile foundation of large bearing capacity.
Background technology
Building foundation engineering is the foundation of building, and pile foundation turns into builds various buildings in environment complex area, special
It is not heavy_weight factory, skyscraper and there is the widely used base form of the building of particular/special requirement.At present, tradition in advance should
Solenoid stake no matter driving into type or forced, all because the quality of stake, bottom section is small the shortcomings of, easily make pile body inclining or cause
Pile body is fractureed, is damaged, and pile foundation anti-bending strength is poor, low bearing capacity, and hidden danger has been buried on the basis to building.In view of the above-mentioned problems,
Those skilled in the art, which need badly, provides a kind of new technical scheme to solve the above problems.
The content of the invention
In order to solve the above-mentioned technical problem, the present invention provides a kind of composite pile foundation of large bearing capacity, effectively increases carrying
Power, withdrawal resistance, while be easy to be pressed into.
The present invention is realized with following technical scheme：
A kind of composite pile foundation of large bearing capacity, the composite pile foundation of the large bearing capacity include the pile body, inner core, prestressing force of cone
Expand head.
Further, the composite pile foundation includes the pile body of cone, and the conical pile body is with hollow cavity
Reinforced concrete pile, the hollow cavity is conical bores, the upper end of the hollow cavity be provided be all cone water
Cement mortar stake is coaxially disposed as inner core, the conical pile body with cement mortar stake, and the lower end of the hollow cavity is provided with
Prestressing force expands head, and the prestressing force, which expands head, includes Access Division, anti-punching shear bar and the tip of cone, and the Access Division top is stretched
Enter in the hollow cavity of the pile body and cooperate, the Access Division bottom is welded with the anti-punching shear bar, the resistance to plucking steel
Muscle is the anti-punching shear bar with crotch, and the anti-punching shear bar welds with the tip so that the prestressing force expand head be fixed on it is described
On the pile body of cone, the lateral wall of the conical pile body is provided with some concrete rings.
Preferably, the conical pile body, coning angle are 1-3 °；
Preferably, the conical cement mortar stake, coning angle are 1-3 °；
Preferably, the anti-punching shear bar includes but is not limited to spiral；
Preferably, the concrete ring is evenly distributed on the outer surface of pile body；
Preferably, the upper end of the conical pile body is provided with end plate.
The beneficial effect that technical scheme provided by the invention is brought is：The present invention in the hollow cavity of pile body by setting
Cement mortar stake, and some concrete rings are provided with the lateral wall of pile body, make bearing capacity and the stability enhancing of pile body；By
Lower end is provided with prestressing force and expands head, effectively increases withdrawal resistance；It is engaged by multiple conical external surfaces, improves pile foundation matter
Amount, and prevent pile foundation from producing crack when being suppressed, make pile foundation firmer.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the composite pile foundation for large bearing capacity that the present embodiment provides；
Wherein：The pile body of 1- cones, 2- cement mortar stakes, 3- prestressing force expand head, 31- Access Divisions, 32- anti-punching shear bars, 33- points
Head, 4- concrete rings, 5- end plates.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, the present invention is made into one below in conjunction with accompanying drawing
It is described in detail on step ground.
Embodiment 1：
As shown in figure 1, the present invention provides a kind of composite pile foundation of large bearing capacity, include the pile body 1 of cone, conical pile body
1 is the reinforced concrete pile with hollow cavity, and hollow cavity is conical bores, and it is all circular cone that the upper end of hollow cavity, which is provided with,
The cement mortar stake 2 of shape is used as inner core, and reinforced concrete pile 1 is coaxially disposed with cement mortar stake 2, and the lower end of hollow cavity is provided with
Prestressing force, which expands first 3, prestressing force expansion head, to be included：The Access Division 31 of cone, anti-punching shear bar 32, and tip 33, Access Division 31 are stretched
Enter in the hollow cavity lower end of pile body 1 and cooperate, the bottom of Access Division 31 is welded with anti-punching shear bar 32, and anti-punching shear bar 32 is band
The anti-punching shear bar of crotch, anti-punching shear bar 32 weld with tip 33, are fixed on so that prestressing force expands first 3 on pile body, the outside of pile body
Wall is provided with some concrete rings 4.
Specifically, in the present embodiment, the cross section of hollow cavity is circle, and vertical section is trapezoidal, the horizontal stroke of cement mortar stake 2
Section is circle, and vertical section is trapezoidal, and cement mortar stake 2 accounts for 2/3rds of the height of pile body 1.
In preferred scheme, the upper end of pile body 1 can be provided with end plate 5, to strengthen bearing capacity.
In preferred scheme, bottom welding is no less than four anti-punching shear bars 32 with crotch, and length is in 100~400mm or so.
The present invention can be effectively increased the bearing capacity and stability of pile body, have fast construction is simple, speed, reliable in quality, hold
Carry the features such as power is high.
Although the present invention essentially describes above example, example is intended only as to be described, and the present invention is simultaneously
Not limited to this embodiment.It is special without departing from the essence of embodiment that those of ordinary skill in the art can make a variety of modifications and application
Property, it is believed that it is included in protection scope of the present invention that appended claims are limited.
Claims (6)
1. a kind of composite pile foundation of large bearing capacity, it is characterised in that the composite pile foundation of the large bearing capacity includes the stake of cone
Body, inner core, prestressing force expand head.
2. the composite pile foundation according to claim 1 for improving foundation bearing capacity, it is characterised in that the large bearing capacity is answered
Closing pile foundation includes the pile body of cone, and the conical pile body is the reinforced concrete pile with hollow cavity, described hollow
Cavity is conical bores, the upper end of the hollow cavity be provided be all cone cement mortar stake as inner core, the circle
The pile body of taper is coaxially disposed with cement mortar stake, and the lower end of the hollow cavity is provided with prestressing force and expands head, and the prestressing force expands
Head includes Access Division, anti-punching shear bar and the tip of cone, and the Access Division top is stretched into the hollow cavity of the pile body
And cooperate, the Access Division bottom is welded with the anti-punching shear bar, and the anti-punching shear bar is the anti-punching shear bar with crotch, institute
Anti-punching shear bar is stated to weld with the tip, so that the prestressing force expands head and is fixed on the conical pile body, the circular cone
The lateral wall of the pile body of shape is provided with some concrete rings, and the conical pile body upper end is provided with end plate.
3. the composite pile foundation according to claim 1 for improving foundation bearing capacity, it is characterised in that the conical stake
Body, coning angle are 1-3 °.
4. the composite pile foundation according to claim 2 for improving foundation bearing capacity, it is characterised in that the conical cement
Mortar pile, coning angle are 1-3 °.
5. the composite pile foundation according to claim 1 for improving foundation bearing capacity, it is characterised in that the anti-punching shear bar includes
But it is not limited to spiral.
6. the composite pile foundation according to claim 1 for improving foundation bearing capacity, it is characterised in that the concrete ring is uniform
It is distributed in the outer surface of pile body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711171044.0A CN107842031A (en) | 2017-11-22 | 2017-11-22 | A kind of composite pile foundation of large bearing capacity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711171044.0A CN107842031A (en) | 2017-11-22 | 2017-11-22 | A kind of composite pile foundation of large bearing capacity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107842031A true CN107842031A (en) | 2018-03-27 |
Family
ID=61680043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711171044.0A Withdrawn CN107842031A (en) | 2017-11-22 | 2017-11-22 | A kind of composite pile foundation of large bearing capacity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107842031A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111877386A (en) * | 2020-06-28 | 2020-11-03 | 东南大学 | Wedge-shaped composite pile and construction method thereof |
-
2017
- 2017-11-22 CN CN201711171044.0A patent/CN107842031A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111877386A (en) * | 2020-06-28 | 2020-11-03 | 东南大学 | Wedge-shaped composite pile and construction method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180327 |