CN1570288A - Pretensioned prestressing concrete tube pile - Google Patents
Pretensioned prestressing concrete tube pile Download PDFInfo
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- CN1570288A CN1570288A CN 200410014918 CN200410014918A CN1570288A CN 1570288 A CN1570288 A CN 1570288A CN 200410014918 CN200410014918 CN 200410014918 CN 200410014918 A CN200410014918 A CN 200410014918A CN 1570288 A CN1570288 A CN 1570288A
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- pile body
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- piling
- stakes
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Abstract
This invention designs one kind of pretensioning law prestressed concrete steel pipe driven in as piling or stakes, including the main pile body, is equipped with the structure muscle in the host pile body, each section of gaps all establishes on the host pile body one to protrudes expands the diameter, expands the diameter the shape is the trapezoid, in expands in the diameter also to establish the structure muscle. This invention overcame in the existing technology the ordinary pretensioning law prestressed concrete tubular pile body structural strength not to obtain the full use the flaw, through the above design, increased the pile body surface area, its end surface also had the certain end to receive the strength. In foundation engineering full display pile body structural strength, enhances the foundation engineering the single pile supporting capacity, according to surveys, under the same level geological condition, take a 25 meter D400 ordinary steel pipe driven in as piling or stakes computation, the single pile limit supporting capacity as 443KN, but this invention steel pipe driven in as piling or stakes can achieve 687KN, the supporting capacity increased 55%, has the structure to be simple, single pile supporting capacity big merit.
Description
Affiliated technical field
The present invention relates to a kind of Pretensioned spun concrete piles.
Background technology
At present, the pretensioned prestressing pile tube product that uses in the building foundation engineering is produced according to standard GB 13476---1999 " Pretensioned spun concrete piles " (being called for short the PC stake) and industry standard JC888---2001 " pretensioning prestressed concrete thin-wall pipe pile " (being called for short the PTC stake), the product appearance is the bigger garden letter shape section structural member of slenderness ratio, and sectional dimension is constant at length direction.In the subgrade Foundation Design, the stressed friction that mostly is of pile tube, and in transportation and the pile driving process, be subjected to impact forces such as vibration, hammering or armful pressure, so tubular pile body design concrete strength higher (C60-C80), but existing tube pile structure, pile structural strength is not fully utilized, and therefore its bearing capacity of single pile also has very big potentiality in the subgrade Foundation Design.
Summary of the invention
In order to overcome the problem that the pile structural strength of common Pretensioned spun concrete piles is not fully utilized in the prior art, the invention provides a kind of Pretensioned spun concrete piles, simple in structure, the bearing capacity of single pile that can effectively improve Foundation Design of this Pretensioned spun concrete piles.
The technical solution adopted for the present invention to solve the technical problems is: comprise main pile body, be provided with the structure muscle in main pile body, all be provided with one in the hole enlargement of protruding every a spacer segment on main pile body.
Being shaped as of hole enlargement is trapezoidal.
The structure muscle also is set in hole enlargement, is spaced apart 2 meters between the hole enlargement.
The present invention has increased the surface area of pile body by above-mentioned specific design, and its end face also has certain end load, can give full play to the structural strength of pile body in Foundation Design, improves the bearing capacity of single pile of Foundation Design.According to measuring and calculating, under equal geological conditions, with the common pile tube calculating of one 25 Miho Dockyard 400, ultimate bearing capacity of single pile is 443KN, pile tube of the present invention then can reach 687KN, and bearing capacity has increased by 55 percent, has advantage simple in structure, that bearing capacity of single pile is big.
Description of drawings
Below in conjunction with drawings and Examples detailed content of the present invention is described.
Accompanying drawing is a structural representation of the present invention.
As shown in the figure, the present invention includes main pile body 1, be provided with structure muscle 2 in main pile body 1, all be provided with one in the hole enlargement 3 of protruding every a spacer segment on main pile body 1, being shaped as of hole enlargement 3 is trapezoidal, is spaced apart 2 meters between the hole enlargement, and structure muscle 2 also is set in hole enlargement 3.According to the soft foundation situation, there are tens meters thick mud and argillic horizon in the upper strata, promptly is bearing bed sand stone layer or decomposed rock below, so still can be directly with hammering or the construction of roof pressure method.Set up the steel stake point of an expansion under the most following joint stake, pile body buries to lead the way.In when piling, periphery without back-up sand stone or cubic metre of earth because in pile driving process, the flowability of weak soil is bigger, mutual extrusion, inevitable compacted original soil layer around the stake, and produce friction and hold load.
Claims (3)
1, a kind of Pretensioned spun concrete piles comprises main pile body, is provided with the structure muscle in main pile body, it is characterized in that upward all being provided with one in the hole enlargement (3) of protruding every a spacer segment at main pile body (1).
2, Pretensioned spun concrete piles according to claim 1 is characterized in that being shaped as of hole enlargement (3) is trapezoidal.
3, Pretensioned spun concrete piles according to claim 1 and 2 is characterized in that also being provided with structure muscle (2) in hole enlargement (3), be spaced apart 2 meters between the hole enlargement (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410014918 CN1570288A (en) | 2004-05-14 | 2004-05-14 | Pretensioned prestressing concrete tube pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410014918 CN1570288A (en) | 2004-05-14 | 2004-05-14 | Pretensioned prestressing concrete tube pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1570288A true CN1570288A (en) | 2005-01-26 |
Family
ID=34478672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410014918 Pending CN1570288A (en) | 2004-05-14 | 2004-05-14 | Pretensioned prestressing concrete tube pile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1570288A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102691297A (en) * | 2012-05-31 | 2012-09-26 | 福州市第三建筑工程公司 | Tubular pile structure bound by steel-cement soil bodies and construction method of the tubular pile structure |
| CN102720194A (en) * | 2012-05-28 | 2012-10-10 | 国鼎(南通)管桩有限公司 | Prestressed concrete pipe pile with reinforcing rings |
| CN102720195A (en) * | 2012-05-28 | 2012-10-10 | 国鼎(南通)管桩有限公司 | Prestressed concrete pipe pile with reinforcing rings |
| CN102808410A (en) * | 2012-07-31 | 2012-12-05 | 杨红旵 | Concrete pipe pile |
| CN107326899A (en) * | 2017-07-21 | 2017-11-07 | 宁乡宁华建材有限公司 | A kind of reinforced concrete tubular pile of outer rim |
-
2004
- 2004-05-14 CN CN 200410014918 patent/CN1570288A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102720194A (en) * | 2012-05-28 | 2012-10-10 | 国鼎(南通)管桩有限公司 | Prestressed concrete pipe pile with reinforcing rings |
| CN102720195A (en) * | 2012-05-28 | 2012-10-10 | 国鼎(南通)管桩有限公司 | Prestressed concrete pipe pile with reinforcing rings |
| CN102691297A (en) * | 2012-05-31 | 2012-09-26 | 福州市第三建筑工程公司 | Tubular pile structure bound by steel-cement soil bodies and construction method of the tubular pile structure |
| CN102691297B (en) * | 2012-05-31 | 2014-09-24 | 福州市第三建筑工程公司 | Tubular pile structure bound by steel-cement soil bodies and construction method of the tubular pile structure |
| CN102808410A (en) * | 2012-07-31 | 2012-12-05 | 杨红旵 | Concrete pipe pile |
| CN107326899A (en) * | 2017-07-21 | 2017-11-07 | 宁乡宁华建材有限公司 | A kind of reinforced concrete tubular pile of outer rim |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |