CN204738290U - Notch cuttype variable cross section expands bored concrete pile soon - Google Patents
Notch cuttype variable cross section expands bored concrete pile soon Download PDFInfo
- Publication number
- CN204738290U CN204738290U CN201520511159.XU CN201520511159U CN204738290U CN 204738290 U CN204738290 U CN 204738290U CN 201520511159 U CN201520511159 U CN 201520511159U CN 204738290 U CN204738290 U CN 204738290U
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- pile body
- pile
- variable cross
- perfusion
- notch cuttype
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Abstract
The utility model discloses a notch cuttype variable cross section expands bored concrete pile soon, including filling the pile body, filling down pile body and load dish, fill the pile body diameter and be greater than and fill down the pile body diameter, fill the pile body and fill down a rigid coupling, the load coils the setting and on the pile body, be provided with N strip recess on the notch cuttype variable cross section expands bored concrete pile soon under filling. The utility model discloses simple structure, design benefit sets up the load dish on irritating the stake, can give full play to the potentiality of bearing of foundation soil and stake itself, makes vertical bearing ability, horizontal bearing capacity and resistance to plucking bearing capacity improve greatly, can reduce pile body settling amount and horizontal displacement volume simultaneously.
Description
Technical field
The utility model relates to stake technical field for building, particularly relates to a kind of notch cuttype variable cross-section and revolves grouting pile.
Background technology
In China, along with the high speed development of building cause, the large projects such as highrise building, bridge, large-sized workshop get more and more, and therefore propose more and more higher requirement to basis.In recent years, the theoretical research of pile foundation, method for designing, construction and detection technique have all had large increase.According to interrelated data display, China's year in 2012 by stake amount close to 8,000,000.Wherein, advantages such as bored concrete pile foundation is high with its single pile bearing capacity, construction depth easily controls, cost is low, noise is low and being widely adopted.China adopts more uniform section deposited reinforced concrete pile to be lean on pile side friction and the load acting in conjunction of stake bottom to bear load at present.To same foundation soil, end bearing surface is long-pending larger, and pile body frictional resistance is larger, then total bearing capacity of stake is larger.In order to improve bearing capacity of single pile, common way is only studied round raising pile side friction.Improve the side friction of stake, only have that to increase stake long or increase stake footpath to improve the side surface area of stake, but increase stake footpath particularly increases the long meeting of stake and greatly increases difficulty of construction.
Utility model content
In order to solve the problem, the utility model provides a kind of notch cuttype variable cross-section and revolves grouting pile, its object is to: the potential bearing capacity that can give full play to foundation soil and stake itself, vertical bearing capacity, horizontal bearing capacity and anti-pulling capacity are improved greatly, pile body settling amount and horizontal displacement can be reduced simultaneously.
The utility model technical solution:
A kind of notch cuttype variable cross-section revolves grouting pile, it is characterized in that: described a kind of notch cuttype variable cross-section revolves grouting pile and comprises the upper pile body of perfusion, the lower pile body of perfusion and force bearing disk, in described perfusion, pile body diameter is greater than the lower pile body diameter of perfusion, in perfusion, pile body is affixed with the lower pile body of perfusion, force bearing disk is arranged on the lower pile body of perfusion, and described a kind of notch cuttype variable cross-section revolves on grouting pile and is provided with N bar groove.
The outer edge thickness of described force bearing disk is less than the thickness of force bearing disk and the lower pile body junction of perfusion, and is what increase progressively from the outer rim of force bearing disk to force bearing disk with the thickness of pile body junction perfusion.
Described force bearing disk is provided with two.
Described depth of groove is 1-2cm.
The utility model beneficial effect:
The utility model structure is simple, design ingenious, filling pile arranges force bearing disk, the potential bearing capacity of foundation soil and stake itself can be given full play to, vertical bearing capacity, horizontal bearing capacity and anti-pulling capacity are improved greatly, pile body settling amount and horizontal displacement can be reduced simultaneously.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is described further.
As shown in Figure 1, a kind of notch cuttype variable cross-section revolves grouting pile, comprise the upper pile body 1 of perfusion, the lower pile body 2 of perfusion and force bearing disk 3, in perfusion, pile body 1 diameter is greater than lower pile body 2 diameter of perfusion, in perfusion, pile body 1 is affixed with the lower pile body 2 of perfusion, force bearing disk 3 is arranged on the lower pile body 2 of perfusion, a kind of notch cuttype variable cross-section revolves on grouting pile and is provided with N bar groove 4, the outer rim A thickness of force bearing disk is less than force bearing disk and the thickness pouring into lower pile body junction B, be what increase progressively from the outer rim A of force bearing disk to force bearing disk with the thickness of pile body junction B perfusion, force bearing disk 3 is provided with two, groove 4 degree of depth is 1-2cm.
Specific works process:
First large-section in-situ concrete pile rig top pore-forming is utilized, utilize mini-pile rig bottom pore-forming, promote rig, revolve expansion equipment in place, open and revolve expansion equipment, in design soil layer design elevation position, revolve successively from bottom to top to expand and form multiple major diameter load chamber, again promote and revolve expansion equipment, then descending reinforcing cage, downcomer, carry out hole (as adopted drilling fluid retaining wall, then not needing hole clearly) clearly and finally carry out filling concrete.Adopt this kind to fill with pile, in perfusion, pile body 1 diameter is greater than lower pile body 2 diameter of perfusion, improves vertical ultimate bearing capacity of single pile, vertical bearing capacity and anti-pulling capacity, decreases pile foundation quantity, shorten pile foundation length; Because stake quantity reduces, and horizontal seismic force does not reduce, its diameter is expanded at stake top, its bending resistance and shear resistance can be improved, improve the horizontal bearing capacity of a clump of piles, the lower pile body 2 of perfusion is provided with force bearing disk 3, the quantity of force bearing disk 3 can be arranged according to actual needs, ensure that the concrete at force bearing disk 3 place is in the state of pressurized substantially, the power that load place is subject to is delivered to the reinforcing bar of pile body, so force bearing disk 3 shear failure can not occur; When vertical pressurized, the ramp formation of force bearing disk 3 increases the range of scatter that force bearing disk is applied to the subsidiary stress of the soil body, avoids causing shearing to the soil body.Castinplace pile is provided with N bar groove 4, adds the side surface area of filling with pile, improve bearing capacity of single pile, adopt this filling pile, substantially increase workmanship, be applicable to popularizing application in an all-round way.
To sum up, the utility model produces a desired effect.
Claims (4)
1. a notch cuttype variable cross-section revolves grouting pile, it is characterized in that: described a kind of notch cuttype variable cross-section revolves grouting pile and comprises the upper pile body of perfusion, the lower pile body of perfusion and force bearing disk, in described perfusion, pile body diameter is greater than the lower pile body diameter of perfusion, in perfusion, pile body is affixed with the lower pile body of perfusion, force bearing disk is arranged on the lower pile body of perfusion, and described a kind of notch cuttype variable cross-section revolves on grouting pile and is provided with N bar groove.
2. a kind of notch cuttype variable cross-section according to claim 1 revolves grouting pile, it is characterized in that: the outer edge thickness of described force bearing disk is less than the thickness of force bearing disk and the lower pile body junction of perfusion, and be what increase progressively from the outer rim of force bearing disk to force bearing disk with the thickness of pile body junction perfusion.
3. revolve grouting pile according to claim 1 or 2 one kind of notch cuttype variable cross-section, it is characterized in that: described force bearing disk is provided with two.
4. a kind of notch cuttype variable cross-section according to claim 1 revolves grouting pile, it is characterized in that: described depth of groove is 1-2cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520511159.XU CN204738290U (en) | 2015-07-15 | 2015-07-15 | Notch cuttype variable cross section expands bored concrete pile soon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520511159.XU CN204738290U (en) | 2015-07-15 | 2015-07-15 | Notch cuttype variable cross section expands bored concrete pile soon |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204738290U true CN204738290U (en) | 2015-11-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520511159.XU Expired - Fee Related CN204738290U (en) | 2015-07-15 | 2015-07-15 | Notch cuttype variable cross section expands bored concrete pile soon |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204738290U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2648397C1 (en) * | 2016-11-02 | 2018-03-26 | Акционерное общество "Научно-исследовательский институт конструкционных материалов на основе графита "НИИграфит" | Reinforced concrete pressing pile and method of driving pressing reinforced concrete pile |
-
2015
- 2015-07-15 CN CN201520511159.XU patent/CN204738290U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2648397C1 (en) * | 2016-11-02 | 2018-03-26 | Акционерное общество "Научно-исследовательский институт конструкционных материалов на основе графита "НИИграфит" | Reinforced concrete pressing pile and method of driving pressing reinforced concrete pile |
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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 |
Granted publication date: 20151104 Termination date: 20160715 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |