CN2775136Y - Cap type small diameter steel reinforced concrete expanding head pile - Google Patents
Cap type small diameter steel reinforced concrete expanding head pile Download PDFInfo
- Publication number
- CN2775136Y CN2775136Y CN 200420054396 CN200420054396U CN2775136Y CN 2775136 Y CN2775136 Y CN 2775136Y CN 200420054396 CN200420054396 CN 200420054396 CN 200420054396 U CN200420054396 U CN 200420054396U CN 2775136 Y CN2775136 Y CN 2775136Y
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- China
- Prior art keywords
- cap
- pile
- reinforced concrete
- steel concrete
- minor diameter
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a cap-shaped reinforced concrete expanding head pile with a small diameter. The utility model uses prefabricated piles with small diameters, the top end of the utility model is connected with a cap-shaped reinforced concrete cover plate through an oblique sheath, and slurry pouring pipes are prefabricated on pipe cores of the prefabricated piles. The utility model solves the existing technical defects, most load on the upper part can be evenly and steadily transmitted to a rigid prefabricated pile body by the oblique sheath and the cap-shaped cover plate, the slurry pouring pipes are buried in advance by using the pile cores of the prefabricated piles, slurry can be poured by pressure without digging holes in a foundation, a pile end expanding head is formed in the foundation, a reinforced concrete cap plate with the oblique sheath is connected with a reinforced concrete prefabricated pile with a small diameter then, and a cap-shaped rigid expanding head pile is formed. The utility model has the advantages of simple structure, high bearing capacity and low cost.
Description
Technical field
The utility model relates to a kind of ground and handles reinforced concrete pile, the stake of particularly a kind of cap shaped minor diameter steel concrete enlarged footing.
Background technology
Before the present utility model, extensive use be to be the major technique of the pile foundation of representative as ground stabilization with rigid pile such as flexible pile such as cement mixing method and castinplace piles, this technology is reduction of erection time, suitable multiple geological conditions and can significantly reduce foundation settlement greatly.Cement mixing method (comprising slurry spray stake and powder spray piling) is to utilize special Mixing Machine to be pressed into cement grout or powder in the soil body and stir, a kind of pile foundation technology by a series of physical-chemical reactions formation, be characterized in that cost is low, but construction quality is because the uneven wayward and detection difficult of powder spray.Castinplace pile class pile quality is better but cost is higher, and it is first-selected to be difficult to become construction.As present speedway and municipal engineering large tracts of land reinforcing soft foundation, need badly not only economy but also can technology new reinforcing technique reliably.
Summary of the invention
The purpose of this utility model just is to overcome prior art defectives such as powder spray inequality, detection difficult, castinplace pile class pile body cost height, studies a kind of new cap shaped minor diameter steel concrete enlarged footing stake that can significantly improve bearing capacity of pile foundation.
The technical solution of the utility model: a kind of cap shaped minor diameter steel concrete enlarged footing stake, provisions for grouting connects Grouting Pipe, its major technique is characterised in that precast reinforced concrete piles is a minor diameter, and its top attachment cap shape shaped steel reinforced concrete cover plate is in the default Grouting Pipe of preformed pile stake core.
Advantage of the present utility model and effect are that this is a kind of bearing capacity height, the measured novel pile foundation of matter, and its precast reinforced concrete piles quality is easy to control; The steel concrete cap shaped cover plate of band inclination sheath can be sent to the most of load in top on the prefabricated pile body of rigidity uniformly and stably; Utilize the pre-buried Grouting Pipe of preformed pile stake core, then need not in ground, punch and just can carry out slip casing by pressure to prefabricated pile end groundwork easily, form preformed pile stake end enlarged footing, can significantly improve the bearing capacity of pile foundation.The default Grouting Pipe of precast reinforced concrete piles in the utility model, preformed pile stake core, the steel concrete cover plate of band inclination sheath can be integrated into product factory or on-the-spot batch process the in batches, easy to carry, use simply effective.
Description of drawings
Fig. 1---the utility model structural principle schematic diagram.
Fig. 2---1-1 sectional drawing among Fig. 1.
Fig. 3---the utility model uses the back to form stake end enlarged footing schematic diagram.
The specific embodiment
As shown in Figure 1, 2, 3, the default Grouting Pipe 2 in minor diameter precast reinforced concrete piles 1 an inner core place, provisions for grouting 6 is communicated with Grouting Pipe 2, and preformed pile 1 top then links to each other with steel concrete block plate 4 by inclination sheath 3.
In coming into effect process, minor diameter precast reinforced concrete piles 1 is driven into the desired depth of ground 5 by the pile driving equipment of routine, utilize provisions for grouting 6 to pass through the pre-buried Grouting Pipe 2 in 1 core place of preformed pile to the bottom of preformed pile 1 pile crown mud jacking, in ground 5, form stake end enlarged footing 7, to link to each other with minor diameter precast reinforced concrete piles 1 with the steel concrete cap plate 4 of inclination sheath 3 then, just formed the stake of minor diameter shape for hat rigidity enlarged footing.
The preformed pile diameter is chosen between 20～30cm to best; The cross section of cap shaped minor diameter steel concrete enlarged footing stake simultaneously can be circular, also can be square; The optimal selection of cap shaped minor diameter steel concrete cap board diameter is 100cm, and its cross section can be circle or square.
Claims (7)
1. cap shaped minor diameter steel concrete enlarged footing stake, provisions for grouting connects Grouting Pipe, it is characterized in that precast reinforced concrete piles is a minor diameter, and its top attachment cap shape shaped steel reinforced concrete cover plate is in the default Grouting Pipe of preformed pile stake core.
2. a kind of cap shaped minor diameter steel concrete enlarged footing according to claim 1 stake is characterized in that the minor diameter precast reinforced concrete piles is connected with the steel concrete cover plate by the inclination sheath.
3. a kind of cap shaped minor diameter steel concrete enlarged footing according to claim 1 stake is characterized in that tilting sheath and the steel concrete cover plate is integral prefabricated builds.
4. a kind of cap shaped minor diameter steel concrete enlarged footing according to claim 1 stake is characterized in that the preformed pile diameter is the best between 20～30cm.
5. according to claim 1,4 described a kind of cap shaped minor diameter steel concrete enlarged footing stakes, it is characterized in that the preformed pile cross section can be circular, also can be square.
6. a kind of cap shaped minor diameter steel concrete enlarged footing according to claim 1 stake is characterized in that the best 100cm of being of steel concrete cap board diameter.
7. according to claim 1,6 described a kind of cap shaped minor diameter steel concrete enlarged footing stakes, it is characterized in that steel concrete cap plate cross section can be circle or square.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420054396 CN2775136Y (en) | 2004-12-15 | 2004-12-15 | Cap type small diameter steel reinforced concrete expanding head pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420054396 CN2775136Y (en) | 2004-12-15 | 2004-12-15 | Cap type small diameter steel reinforced concrete expanding head pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2775136Y true CN2775136Y (en) | 2006-04-26 |
Family
ID=36749449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420054396 Expired - Fee Related CN2775136Y (en) | 2004-12-15 | 2004-12-15 | Cap type small diameter steel reinforced concrete expanding head pile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2775136Y (en) |
-
2004
- 2004-12-15 CN CN 200420054396 patent/CN2775136Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060426 Termination date: 20100115 |