CN103223693A - Centrifugal processing for prestressing hollow square pile - Google Patents
Centrifugal processing for prestressing hollow square pile Download PDFInfo
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- CN103223693A CN103223693A CN201310107037XA CN201310107037A CN103223693A CN 103223693 A CN103223693 A CN 103223693A CN 201310107037X A CN201310107037X A CN 201310107037XA CN 201310107037 A CN201310107037 A CN 201310107037A CN 103223693 A CN103223693 A CN 103223693A
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Abstract
The invention relates to a centrifugal processing for a prestressing hollow pile. The centrifugal processing comprises the steps that a), a prestressing hollow pile forming die is centrifuged at a low speed, the centrifugation time is 4 min, and the centrifugation speed ranges from 60 r/min to 75 r/min; b), the prestressing hollow pile forming die is centrifuged at a medium or low speed, the centrifugation time is 1.5 min, and the centrifugation speed ranges from 125 r/min to 155 r/min; c), the prestressing hollow pile forming die is centrifuged at a medium speed, the centrifugation time is 2 min, and the centrifugation speed ranges from 215 r/min to 245 r/min; d), the prestressing hollow pile forming die is centrifuged at a medium or high speed, the centrifugation time is 1.5 min, and the centrifugation speed ranges from 305 r/min to 335 r/min; and e), the prestressing hollow pile forming die is centrifuged at a high speed, the centrifugation time is 4 min, and the centrifugation speed ranges from 395 r/min to 425 r/min. The centrifugal processing for the prestressing hollow pile has the advantages that a concrete material is distributed more uniformly, the pile body strength is improved, and the time required by the centrifugal processing is shortened simultaneously.
Description
Technical field
The present invention relates to a kind of pre-stress hollow square pile centrifuging process, a kind of specifically centrifuging process that can shorten the centrifuging process time, the concrete material is evenly distributed more.
Background technology
Hollow square pile has 3 superiority than pile tube: the first, outer cross section is the circular stacking preferably of square ratio, the square-section of hollow square pile more helps pile extension construction than circle, be exactly with ining addition can the image tube stake in the stake of static pressure construction hollow core side such easy pressed from both sides broken; The second, in the equal area physical form, the circumference minimum, promptly the cylindrical in hollow square pile cross section is grown the Zhou Changda of generally long-pending than same cross-sectional pile tube, can illustrate by simple calculating.For the stake type that friction pile and end based on side friction hold friction pile, hollow square pile takes advantage; Three, identical sectional area, hollow square pile are than the cross sectional moment of inertia of pile tube more greatly.
In the prior art, when the hollow square pile moulding, adopt the centrifuging process moulding, and the total low speed of existing centrifuging process, middle low speed, middling speed, high speed four-stage carry out, when adopting such centrifuging process moulding, the required time is long.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of centrifuging process that can shorten the centrifuging process time, the concrete material is evenly distributed more.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is: a kind of pre-stress hollow square pile centrifuging process, it is characterized in that: described step is specially: it is centrifugal a) to adopt low speed to carry out to the pre-stress hollow square pile mould, and centrifugation time is that the 4min centrifugal speed is between 60-75r/min; B) the pre-stress hollow square pile mould is adopted in low speed carry out centrifugally, centrifugation time is 1.5min, centrifugal speed is between 125-155r/min; C) it is centrifugal to adopt middling speed to carry out to the pre-stress hollow square pile mould, and centrifugation time is 2min, and centrifugal speed is between 215-245r/min; D) it is centrifugal to adopt high speed to carry out to the pre-stress hollow square pile mould, and centrifugation time is 1.5min, and centrifugal speed is between 305-335r/min; E) it is centrifugal to adopt high speed to carry out to the pre-stress hollow square pile mould, and centrifugation time is 4min, and centrifugal speed is between 395-425r/min.
Further, it is the hollow square pile of φ 300 that described pre-stress hollow square pile adopts specification, and the low-speed centrifugal rotating speed is 70r/min, the low-medium speed centrifugal rotational speed is 150r/min, the middling speed centrifugal rotational speed is 240r/min, and the high speed centrifugal rotational speed is 330r/min, and the high speed centrifugation rotating speed is 420r/min.
Further, it is the hollow square pile of φ 350 that described pre-stress hollow square pile adopts specification, and the low-speed centrifugal rotating speed is 70r/min, the low-medium speed centrifugal rotational speed is 140r/min, the middling speed centrifugal rotational speed is 240r/min, and the high speed centrifugal rotational speed is 330r/min, and the high speed centrifugation rotating speed is 420r/min.
Further, it is the hollow square pile of φ 400 that described pre-stress hollow square pile adopts specification, and the low-speed centrifugal rotating speed is 65r/min, the low-medium speed centrifugal rotational speed is 130r/min, the middling speed centrifugal rotational speed is 230r/min, and the high speed centrifugal rotational speed is 330r/min, and the high speed centrifugation rotating speed is 410r/min.
Further, it is the hollow square pile of φ 450 that described pre-stress hollow square pile adopts specification, and the low-speed centrifugal rotating speed is 65r/min, the low-medium speed centrifugal rotational speed is 130r/min, the middling speed centrifugal rotational speed is 230r/min, and the high speed centrifugal rotational speed is 320r/min, and the high speed centrifugation rotating speed is 400r/min.
Further, it is the hollow square pile of φ 500 that described pre-stress hollow square pile adopts specification, and the low-speed centrifugal rotating speed is 65r/min, the low-medium speed centrifugal rotational speed is 130r/min, the middling speed centrifugal rotational speed is 220r/min, and the high speed centrifugal rotational speed is 310r/min, and the high speed centrifugation rotating speed is 400r/min.
The invention has the advantages that: the four-stage of original centrifuging process is improved to low speed, middle low speed, middling speed, high speed, five stages of high speed now, so that the concrete material is evenly distributed more, make pile body improve pile strength more, and the centrifuging process after improving, also shortened aspect the time, improved operating efficiency.
The specific embodiment
Table 1 is centrifuging process rotating speed of the prior art and time, and table 2 is the rotating speed and the time of centrifuging process of the present invention, and table 3 is the side's contrast of taking a sample that just goes out with existing technology and explained hereafter of the present invention.
Specifying below in conjunction with table 1 and table 2 pair pre-stress hollow square pile centrifuging process of the present invention, is the pre-stress hollow square pile of φ 300 specifications, when adopting old technology to produce equally, be total to four-stage, low-speed stage, rotating speed 70r/min, centrifugation time are 4min; In the low-medium speed stage, rotating speed 150r/min, centrifugation time are 1min; In the middling speed stage, rotating speed is 260r/min, and centrifugation time is 3min; High speed stage, rotating speed are 440r/min, and centrifugation time is 6min.Adopt new technology when producing, in totally five stages, low-speed stage, rotating speed are 70r/min, and centrifugation time is 4min; In the low-medium speed stage, rotating speed is 150r/min, and centrifugation time is 1.5min; In the middling speed stage, rotating speed is 240r/min, and centrifugation time is 2min; In the high speed stage, rotating speed is 330r/min, and centrifugation time is 1.5min; High speed stage, rotating speed are 420r/min, and centrifugation time is 4min.
Be the pre-stress hollow square pile of φ 350 specifications equally, when adopting old technology to produce, be total to four-stage, low-speed stage, rotating speed 70r/min, centrifugation time are 4min; In the low-medium speed stage, rotating speed 140r/min, centrifugation time are 1min; In the middling speed stage, rotating speed is 280r/min, and centrifugation time is 3min; High speed stage, rotating speed are 430r/min, and centrifugation time is 6min.Adopt new technology when producing, in totally five stages, low-speed stage, rotating speed are 70r/min, and centrifugation time is 4min; In the low-medium speed stage, rotating speed is 140r/min, and centrifugation time is 1.5min; In the middling speed stage, rotating speed is 240r/min, and centrifugation time is 2min; In the high speed stage, rotating speed is 330r/min, and centrifugation time is 1.5min; High speed stage, rotating speed are 420r/min, and centrifugation time is 4min.
Be the pre-stress hollow square pile of φ 400 specifications equally, when adopting old technology to produce, be total to four-stage, low-speed stage, rotating speed 65r/min, centrifugation time are 4min; In the low-medium speed stage, rotating speed 130r/min, centrifugation time are 1min; In the middling speed stage, rotating speed is 300r/min, and centrifugation time is 3min; High speed stage, rotating speed are 420r/min, and centrifugation time is 6min.Adopt new technology when producing, in totally five stages, low-speed stage, rotating speed are 65r/min, and centrifugation time is 4min; In the low-medium speed stage, rotating speed is 130r/min, and centrifugation time is 1.5min; In the middling speed stage, rotating speed is 230r/min, and centrifugation time is 2min; In the high speed stage, rotating speed is 330r/min, and centrifugation time is 1.5min; High speed stage, rotating speed are 410r/min, and centrifugation time is 4min.
Be the pre-stress hollow square pile of φ 450 specifications equally, when adopting old technology to produce, be total to four-stage, low-speed stage, rotating speed 65r/min, centrifugation time are 4min; In the low-medium speed stage, rotating speed 130r/min, centrifugation time are 1min; In the middling speed stage, rotating speed is 300r/min, and centrifugation time is 3min; High speed stage, rotating speed are 410r/min, and centrifugation time is 6min.Adopt new technology when producing, in totally five stages, low-speed stage, rotating speed are 65r/min, and centrifugation time is 4min; In the low-medium speed stage, rotating speed is 130r/min, and centrifugation time is 1.5min; In the middling speed stage, rotating speed is 230r/min, and centrifugation time is 2min; In the high speed stage, rotating speed is 320r/min, and centrifugation time is 1.5min; High speed stage, rotating speed are 400r/min, and centrifugation time is 4min.
Be the pre-stress hollow square pile of φ 500 specifications equally, when adopting old technology to produce, be total to four-stage, low-speed stage, rotating speed 65r/min, centrifugation time are 4min; In the low-medium speed stage, rotating speed 130r/min, centrifugation time are 1min; In the middling speed stage, rotating speed is 300r/min, and centrifugation time is 3min; High speed stage, rotating speed are 400r/min, and centrifugation time is 6min.Adopt new technology when producing, in totally five stages, low-speed stage, rotating speed are 65r/min, and centrifugation time is 4min; In the low-medium speed stage, rotating speed is 130r/min, and centrifugation time is 1.5min; In the middling speed stage, rotating speed is 220r/min, and centrifugation time is 2min; In the high speed stage, rotating speed is 310r/min, and centrifugation time is 1.5min; High speed stage, rotating speed are 400r/min, and centrifugation time is 4min.
Old technology and new technology are compared, no matter be the pre-stress hollow square pile of which kind of specification, old technology required time is 14min, and new technology only needs 13min, and the time aspect has been saved.And by the data of table 3 as can be seen, use side that new technology produces aspect intensity, to be greatly improved.
Table 1
Table 2
Claims (6)
1. pre-stress hollow square pile centrifuging process, it is characterized in that: described step is specially: it is centrifugal a) to adopt low speed to carry out to the pre-stress hollow square pile mould, and centrifugation time is that the 4min centrifugal speed is between 60-75r/min; B) the pre-stress hollow square pile mould is adopted in low speed carry out centrifugally, centrifugation time is 1.5min, centrifugal speed is between 125-155r/min; C) it is centrifugal to adopt middling speed to carry out to the pre-stress hollow square pile mould, and centrifugation time is 2min, and centrifugal speed is between 215-245r/min; D) it is centrifugal to adopt high speed to carry out to the pre-stress hollow square pile mould, and centrifugation time is 1.5min, and centrifugal speed is between 305-335r/min; E) it is centrifugal to adopt high speed to carry out to the pre-stress hollow square pile mould, and centrifugation time is 4min, and centrifugal speed is between 395-425r/min.
2. pre-stress hollow square pile centrifuging process according to claim 1, it is characterized in that: it is the hollow square pile of φ 300mm that described pre-stress hollow square pile adopts specification, the low-speed centrifugal rotating speed is 70r/min, the low-medium speed centrifugal rotational speed is 150r/min, the middling speed centrifugal rotational speed is 240r/min, the high speed centrifugal rotational speed is 330r/min, and the high speed centrifugation rotating speed is 420r/min.
3. pre-stress hollow square pile centrifuging process according to claim 1, it is characterized in that: it is the hollow square pile of φ 350 that described pre-stress hollow square pile adopts specification, the low-speed centrifugal rotating speed is 70r/min, the low-medium speed centrifugal rotational speed is 140r/min, the middling speed centrifugal rotational speed is 240r/min, the high speed centrifugal rotational speed is 330r/min, and the high speed centrifugation rotating speed is 420r/min.
4. pre-stress hollow square pile centrifuging process according to claim 1, it is characterized in that: it is the hollow square pile of φ 400 that described pre-stress hollow square pile adopts specification, the low-speed centrifugal rotating speed is 65r/min, the low-medium speed centrifugal rotational speed is 130r/min, the middling speed centrifugal rotational speed is 230r/min, the high speed centrifugal rotational speed is 330r/min, and the high speed centrifugation rotating speed is 410r/min.
5. pre-stress hollow square pile centrifuging process according to claim 1, it is characterized in that: it is the hollow square pile of φ 450 that described pre-stress hollow square pile adopts specification, the low-speed centrifugal rotating speed is 65r/min, the low-medium speed centrifugal rotational speed is 130r/min, the middling speed centrifugal rotational speed is 230r/min, the high speed centrifugal rotational speed is 320r/min, and the high speed centrifugation rotating speed is 400r/min.
6. pre-stress hollow square pile centrifuging process according to claim 1, it is characterized in that: it is the hollow square pile of φ 500 that described pre-stress hollow square pile adopts specification, the low-speed centrifugal rotating speed is 65r/min, the low-medium speed centrifugal rotational speed is 130r/min, the middling speed centrifugal rotational speed is 220r/min, the high speed centrifugal rotational speed is 310r/min, and the high speed centrifugation rotating speed is 400r/min.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103434020A (en) * | 2013-09-06 | 2013-12-11 | 天津永生鑫和管桩有限公司 | Production method of non-residual slurry non-autoclaved prestressed concrete pipe pile |
Citations (5)
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| CN1563601A (en) * | 2004-03-15 | 2005-01-12 | 中国第二十冶金建设公司 | Concrete pipe pile mixed by steel fiber and fabricating method |
| CN1746434A (en) * | 2005-07-22 | 2006-03-15 | 上海二十冶金混凝土构件有限公司 | Centrifugal tubular pile with concrete of thin-wall steel pipe and production thereof |
| CN1958261A (en) * | 2006-11-17 | 2007-05-09 | 河南省电力勘测设计院 | Method for manufacturing wire pole from steel fiber concrete with no bracing wire |
| JP4039709B2 (en) * | 1997-03-31 | 2008-01-30 | 太平洋セメント株式会社 | Centrifugal force molded body and manufacturing method thereof |
| CN102848464A (en) * | 2012-08-30 | 2013-01-02 | 福建省大地管桩有限公司 | No-residual slurry forming technology of centrifugal tubular pile |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4039709B2 (en) * | 1997-03-31 | 2008-01-30 | 太平洋セメント株式会社 | Centrifugal force molded body and manufacturing method thereof |
| CN1563601A (en) * | 2004-03-15 | 2005-01-12 | 中国第二十冶金建设公司 | Concrete pipe pile mixed by steel fiber and fabricating method |
| CN1746434A (en) * | 2005-07-22 | 2006-03-15 | 上海二十冶金混凝土构件有限公司 | Centrifugal tubular pile with concrete of thin-wall steel pipe and production thereof |
| CN1958261A (en) * | 2006-11-17 | 2007-05-09 | 河南省电力勘测设计院 | Method for manufacturing wire pole from steel fiber concrete with no bracing wire |
| CN102848464A (en) * | 2012-08-30 | 2013-01-02 | 福建省大地管桩有限公司 | No-residual slurry forming technology of centrifugal tubular pile |
Non-Patent Citations (1)
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| 何建明: "基于正交试验法的管桩离心工艺优化", 《宁波大学学报(理工版)》, no. 03, 30 September 2006 (2006-09-30), pages 9 * |
Cited By (1)
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| CN103434020A (en) * | 2013-09-06 | 2013-12-11 | 天津永生鑫和管桩有限公司 | Production method of non-residual slurry non-autoclaved prestressed concrete pipe pile |
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