CN100387786C - Centrifugal tubular pile with concrete of thin-wall steel pipe and production thereof - Google Patents
Centrifugal tubular pile with concrete of thin-wall steel pipe and production thereof Download PDFInfo
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- CN100387786C CN100387786C CNB2005100280501A CN200510028050A CN100387786C CN 100387786 C CN100387786 C CN 100387786C CN B2005100280501 A CNB2005100280501 A CN B2005100280501A CN 200510028050 A CN200510028050 A CN 200510028050A CN 100387786 C CN100387786 C CN 100387786C
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Abstract
The present invention discloses a reinforced concrete prefabricated part, namely, a thin-wall steel pipe centrifugal concrete pipe pile and a manufacturing method thereof. The thin-wall steel pipe centrifugal concrete pipe pile comprises a steel pipe and steel end plates, wherein the steel end plates are respectively welded on both ends of the steel pipe. The pipe pile is in a multi-layer structure and also comprises concrete and a reinforcement skeleton, wherein the reinforcement skeleton is positioned on the internal layer of the pipe pile, and the inside of the steel pipe is filled with a certain quantity of the concrete. The manufacturing method of the pipe pile comprises the following processing steps of the molding of the reinforcement skeleton, the casting and the centrifugation of the concrete, the common steam curing and the high-pressure and high-temperature steam curing of the concrete. The thin-wall steel pipe centrifugal concrete pipe pile of the present invention is adopted; on the premise that the quantity of used steel is reduced by reducing the steel pipe thickness of the steel pipe pile from 9.5mm to 16mm to be equal to or less than 6mm, the capacity of resisting impact, axle load, bending, etc. of pile materials can be ensured. The reinforcement skeleton in the pipe pile can also save the cost, and in addition, the operability of the manufacturing technology of the pipe pile is strong.
Description
Technical field
The present invention relates to concrete tubular pile and production method thereof that the civil construction industry is used, relate in particular to a kind of centrifugal tubular pile with concrete of thin-wall steel pipe and production method thereof.
Background technology
At present, in some Important Project, some unit in charge of construction selects steel pipe pile or the steel tube concrete pile carrying foundation pile as building and large equipment base for use, and all selects steel pipe pile as the basis in coastal many important industry and civil building, and the pile foundation consumption is very huge.But, select for use the expense of steel pipe pile or steel tube concrete pile comparatively expensive, can strengthen the cost of construction after the use; And use the steel pipe pile existence to cause the phenomenon that larger side moves because of excavation of foundation pit.Squeeze into behind the steel pipe method of penetration concrete and carry out consolidation process if adopt, steel pipe must guarantee enough wall thickness, general thickness of steel pipe is 9.5～16mm, otherwise can be because of the excessive generation steel pipe of hammer force yield phenomenon in squeezing into, pouring concrete in-situ also can be made troubles to construction simultaneously, causes the raising of cost.
Summary of the invention
Technical problem to be solved by this invention is that a kind of centrifugal tubular pile with concrete of thin-wall steel pipe and production method thereof are provided on the basis of original steel tube concrete pile, this centrifugal tubular pile with concrete of thin-wall steel pipe has the advantage of steel pipe pile and concrete pile concurrently, is convenient to promote the use of and save cost.
For solving the problems of the technologies described above, a kind of centrifugal tubular pile with concrete of thin-wall steel pipe of the present invention comprises steel pipe and steel end plate, the steel end plate welds the two ends at steel pipe respectively, this pile tube is a sandwich construction, also comprise concrete and cage of reinforcement, cage of reinforcement is positioned at the internal layer of pile tube, fills a certain amount of concrete in steel pipe.The cage of reinforcement that increases makes that as the anchor rib of pile tube the combination of steel end plate and pile tube is firm, and anti-strike capability strengthens.In order to reduce the steel consumption, pile tube adopts sandwich construction, makes the wall thickness≤6mm of steel pipe.
In order to reduce the cost of product, the spiral element of steel pipe for adopting carbon structural steel and low-alloy structural steel band to make.
The method of producing centrifugal tubular pile with concrete of thin-wall steel pipe comprises the steps:
(1) moulding of cage of reinforcement: with hot rolled ribbed steel bar and cold-drawn low-carbon wire combination forming;
(2) drop into rubble, yellow ground and cement in agitator and stir, and then add entry and water reducing agent stirs, wherein the match ratio of cement, yellow ground, rubble, water and water reducing agent is: cement: 500～530kg/m
3, yellow ground: 560～680kg/m
3, rubble: 1110～1240kg/m
3, water: 140～180kg/m
3, water reducing agent: 8.3～12.3kg/m
3With the concrete injection moulding steel pipe after stirring, put into pipe pile die and carry out centrifugal forming, centrifugal closely knit;
(3) at last pile tube is carried out maintenance.
In order to guarantee combining of concrete and steel pipe and cage of reinforcement, concrete mixing time will be no less than 120 seconds; Stirring the concrete slump in back simultaneously is controlled to be respectively: the pumping of concrete slump is 80～140mm, and manual watering's concrete slump is 30～80mm.
Closely knit in order to guarantee pile tube stake two ends when centrifugal, to guarantee pile tube two ends cloth abundance during placing of concrete, the corresponding concrete casting amount than the middle part of the concrete casting amount of pile tube two ends unit length Duos 1/3.
In order to guarantee that tubular pile concrete reaches design strength, the maintenance of pile tube is common steam-cured and high-pressure and high-temperature steam maintenance: common steam-cured constant temperature is no less than 5 hours, and temperature is not less than 75 ℃; The high-pressure and high-temperature steam curing time is no less than 5 hours, and temperature is not less than 180 ℃, and pressure is not less than 0.98Mpa.
In order to guarantee the application performance of pile tube, take into account the use equipment that is had simultaneously, concrete in the centrifugal forming process, centrifugal speed according to pipe die and centrifuge instrument wheel footpath adopt at a slow speed respectively, middling speed, high speed and at a high speed.
Adopt centrifugal tubular pile with concrete of thin-wall steel pipe of the present invention, owing to adopt sandwich construction, is that 9.5mm～16mm reduces under the prerequisite of wall thickness≤6mm at steel using amount by the thickness of steel pipe of original steel pipe pile, its anti-strike capability, anti-axial compression ability, counter-bending ability can satisfy steel pipe pile and the steel tube concrete pile that replaces the equal capability performance, and the pile tube internal layer adopts cage of reinforcement not only to save cost of production, and make that the combination of steel end plate and pile tube is firm, strengthen its anti-strike capability.The manufacture craft of centrifugal tubular pile with concrete of thin-wall steel pipe is workable in addition, and the special geologic condition that can satisfy China's building foundation engineering after the popularization is with stake, to guarantee workmanship and to reduce investment outlay.
Description of drawings
The present invention is described in further detail below in conjunction with drawings and embodiments:
Fig. 1 is the structural representation of centrifugal tubular pile with concrete of thin-wall steel pipe of the present invention.
The specific embodiment
Fig. 1 is the structural representation of centrifugal tubular pile with concrete of thin-wall steel pipe of the present invention.As can be seen from Figure 1, this centrifugal tubular pile with concrete of thin-wall steel pipe is a sandwich construction, comprise steel pipe 1 and steel end plate 4, steel end plate 4 welds the two ends at steel pipe 1 respectively, this pile tube also comprises concrete 2 and cage of reinforcement 3 simultaneously, cage of reinforcement 3 is positioned at the internal layer of pile tube 1, is filled with a certain amount of concrete 2 in steel pipe 1.
Specific embodiment is as follows:
Embodiment 1: thickness of steel pipe is: 6mm, and the concrete match ratio of concrete is as follows:
Common 42.5 class g cements: 515kg/m
3, yellow ground: 640kg/m
3, rubble (5-25mm): 1216kg/m
3, water: 100kg/m
3, water reducing agent: 10.7kg/m
3
Concrete production method is: the raw material of above-mentioned match ratio is dropped into agitator, mixing time is 180 seconds, the slump that records is 80mm, to stir material after the stirring waters fast to pipe pile die, carry out centrifugal forming then, the centrifugal forming time is respectively: low speed 120 seconds, middling speed 180 seconds, high speed 120 seconds, high speed 420 seconds, and maintenance employing atmospheric steam health and two kinds of form: a of high steam health, atmospheric steam health: resting 2 hours,---heated up 2 hours---constant temperature 5 hours---lowered the temperature 1 hour; B, high steam health: heating up in still kettle,------lowering the temperature 3 hours,---opening still kettle Men Jing stopped 1 hour---product went out still to constant temperature 4 hours in 2 hours.Implementation result: pile body single pile axle center static load pressure test 6600kN, pile body resistance to compression 9600kN, beam test 264.5kNm, meet design standard, reach instructions for use.
Embodiment 2: thickness of steel pipe is: 5.9mm, and the concrete match ratio of concrete is as follows:
Common 42.5 class g cements: 515kg/m
3, yellow ground: 640kg/m
3, rubble (5-25mm): 1216kg/m
3, water: 100kg/m
3, water reducing agent: 10.7kg/m
3
Concrete production method is: the raw material of above-mentioned match ratio is dropped into agitator, mixing time is 180 seconds, the slump that records is 80mm, to stir material after the stirring waters fast to pipe pile die, carry out centrifugal forming then, the centrifugal forming time is respectively: low speed 120 seconds, middling speed 180 seconds, high speed 120 seconds, high speed 420 seconds, and maintenance employing atmospheric steam health and two kinds of form: a of high steam health, atmospheric steam health: resting 2 hours,---heated up 2 hours---constant temperature 5 hours---lowered the temperature 1 hour; B, high steam health: heating up in still kettle,------lowering the temperature 3 hours,---opening still kettle Men Jing stopped 1 hour---product went out still to constant temperature 4 hours in 2 hours.Implementation result: pile body single pile axle center static load pressure test 6600kN, pile body resistance to compression 9000kN, beam test 241.5kNm, meet design standard, reach instructions for use.
Embodiment 3: thickness of steel pipe is: 5.8mm, and the concrete match ratio of concrete is as follows:
Common 42.5 class g cements: 510kg/m
3, yellow ground: 616kg/m
3, rubble (5-25mm): 1197kg/m
3, water: 149kg/m
3, water reducing agent: 10.3kg/m
3
Concrete production method is: the raw material of above-mentioned match ratio is dropped into agitator, mixing time is 180 seconds, the slump that records is 80mm, to stir material after the stirring waters fast to pipe pile die, carry out centrifugal forming then, the centrifugal forming time is respectively: low speed 120 seconds, middling speed 180 seconds, high speed 120 seconds, high speed 420 seconds, and maintenance employing atmospheric steam health and two kinds of form: a of high steam health, atmospheric steam health: resting 2 hours,---heated up 2 hours---constant temperature 5 hours---lowered the temperature 1 hour; B, high steam health: heating up in still kettle,------lowering the temperature 3 hours,---opening still kettle Men Jing stopped 1 hour---product went out still to constant temperature 4 hours in 2 hours.Implementation result: pile body single pile axle center static load pressure test 6600kN, pile body resistance to compression 7800kN, beam test 241.5kNm, meet design standard, reach instructions for use.
Claims (7)
1. a centrifugal tubular pile with concrete of thin-wall steel pipe comprises steel pipe and steel end plate, and the steel end plate welds the two ends at steel pipe respectively, it is characterized in that this pile tube is a sandwich construction, also comprise concrete and cage of reinforcement, cage of reinforcement is positioned at the internal layer of pile tube, is filled with concrete between steel pipe and cage of reinforcement; Wall thickness≤the 6mm of steel pipe.
2. centrifugal tubular pile with concrete of thin-wall steel pipe according to claim 1, it is characterized in that steel pipe by carbon structural steel and low-alloy structural steel steel band with normal temperature spiralization steel pipe.
3. a method of producing the product of claim 1 is characterized in that this method comprises the steps:
(1) moulding of cage of reinforcement: with hot rolled ribbed steel bar and cold-drawn low-carbon wire combination forming;
(2) drop into rubble, yellow ground and cement in agitator and stir, and then add entry and water reducing agent stirs, wherein the match ratio of cement, yellow ground, rubble, water and water reducing agent is: cement: 500～530kg/m
3, yellow ground: 560～680kg/m
3, rubble: 1110～1240kg/m
3, water: 140～180kg/m
3, water reducing agent: 8.3～12.3kg/m
3Concrete ascending pipe pile die after stirring is carried out centrifugal forming, centrifugal closely knit;
(3) at last pile tube is carried out maintenance.
4. the production method of a kind of product according to claim 3 is characterized in that the concrete mixing time is 〉=120 seconds; Stirring the concrete slump in back is respectively: the pumping of concrete slump is 80～140mm, and manual watering's concrete slump is 30～80mm.
5. the production method of a kind of product according to claim 3, pile tube two ends cloth abundance when it is characterized in that placing of concrete, the corresponding concrete casting amount than the middle part of the concrete casting amount of pile tube two ends unit length Duos 1/3.
6. the production method of a kind of product according to claim 3, the maintenance that it is characterized in that pile tube is common steam-cured and high-pressure and high-temperature steam maintenance: common steam-cured constant temperature is no less than 5 hours, and temperature is not less than 75 ℃; The high-pressure and high-temperature steam curing time is no less than 5 hours, and temperature is not less than 180 ℃.
7. the production method of a kind of product according to claim 3 is characterized in that concrete in the centrifugal forming process, centrifugal speed according to pipe die and centrifuge instrument wheel footpath adopt at a slow speed respectively, middling speed, high speed and at a high speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100280501A CN100387786C (en) | 2005-07-22 | 2005-07-22 | Centrifugal tubular pile with concrete of thin-wall steel pipe and production thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100280501A CN100387786C (en) | 2005-07-22 | 2005-07-22 | Centrifugal tubular pile with concrete of thin-wall steel pipe and production thereof |
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| Publication Number | Publication Date |
|---|---|
| CN1746434A CN1746434A (en) | 2006-03-15 |
| CN100387786C true CN100387786C (en) | 2008-05-14 |
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Families Citing this family (13)
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| CN101906776B (en) * | 2010-07-07 | 2012-10-24 | 东南大学 | Major-diameter prestressed concrete pipe pile of glass steel pipe die and preparation method thereof |
| CN102966100A (en) * | 2012-10-25 | 2013-03-13 | 国鼎(南通)管桩有限公司 | Tensioned spun concrete (TSC) and prestressed high-strength concrete (PHC) combined pile |
| CN102966092A (en) * | 2012-10-25 | 2013-03-13 | 国鼎(南通)管桩有限公司 | TSC (Two Subcarrier System) tube pile provided with nonprestressed reinforcement cage |
| CN103223693B (en) * | 2013-03-29 | 2015-11-18 | 南通中技桩业有限公司 | A kind of pre-stress hollow square pile centrifuging process |
| CN104295814B (en) * | 2014-10-14 | 2015-11-18 | 南京联众建设工程技术有限公司 | Underground steel and concrete structure pipeline of a kind of inner wall belt spiral compound stiffening ring and preparation method thereof |
| CN104775419A (en) * | 2015-04-27 | 2015-07-15 | 海盐水泥制管有限公司 | Manufacturing method of cement pipeline of building |
| CN105019450B (en) * | 2015-06-30 | 2017-01-25 | 国鼎(南通)管桩有限公司 | Production process of large-caliber SC shape steel mixed pile |
| CN106393424A (en) * | 2016-11-21 | 2017-02-15 | 广西大学 | Preparation method of improving prestress of cement electric pole |
| CN106584671A (en) * | 2016-12-22 | 2017-04-26 | 四川华胜农业股份有限公司 | Prestress preparation method for cement piles |
| CN108890864A (en) * | 2018-06-22 | 2018-11-27 | 武汉理工大学 | A kind of autoclave at high temperature maintenance process of pre-stressed steel pipe concrete component |
| CN110978253A (en) * | 2019-11-18 | 2020-04-10 | 福建大力新型建材科技有限公司 | Method and device for manufacturing composite forming precast concrete steel pipe pile |
| CN111002040B (en) * | 2019-12-30 | 2021-07-30 | 浙江弘源金属制品有限公司 | Sawing device for machining tubular pile end plate and machining process thereof |
| CN113400458A (en) * | 2021-05-08 | 2021-09-17 | 湖州友盛水泥制品有限公司 | Reinforced concrete drain pipe and production method thereof |
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|---|---|---|---|---|
| CN2092560U (en) * | 1991-01-17 | 1992-01-08 | 宁波混凝土管桩厂 | Pre-stressed concrete tubular pile |
| CN2387146Y (en) * | 1999-09-17 | 2000-07-12 | 铁道部科学研究院铁道建筑研究所 | Thin wall and light weight tubular pile |
| JP2002146780A (en) * | 2000-11-10 | 2002-05-22 | Kokudo Kiso:Kk | Steel pipe for concrete composite pile and method of building steel-pipe concrete composite pile |
| JP2002180460A (en) * | 2000-12-13 | 2002-06-26 | Nippon Steel Corp | Concrete filled steel pipe pile head structure and method of manufacturing concrete filled steel pipe pile head structure |
| CN2672164Y (en) * | 2003-12-25 | 2005-01-19 | 徐国林 | Centrifugal steel pipe concrete pipe pile |
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2005
- 2005-07-22 CN CNB2005100280501A patent/CN100387786C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2092560U (en) * | 1991-01-17 | 1992-01-08 | 宁波混凝土管桩厂 | Pre-stressed concrete tubular pile |
| CN2387146Y (en) * | 1999-09-17 | 2000-07-12 | 铁道部科学研究院铁道建筑研究所 | Thin wall and light weight tubular pile |
| JP2002146780A (en) * | 2000-11-10 | 2002-05-22 | Kokudo Kiso:Kk | Steel pipe for concrete composite pile and method of building steel-pipe concrete composite pile |
| JP2002180460A (en) * | 2000-12-13 | 2002-06-26 | Nippon Steel Corp | Concrete filled steel pipe pile head structure and method of manufacturing concrete filled steel pipe pile head structure |
| CN2672164Y (en) * | 2003-12-25 | 2005-01-19 | 徐国林 | Centrifugal steel pipe concrete pipe pile |
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| CN1746434A (en) | 2006-03-15 |
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Owner name: SHANGHAI 22YE ENGINEERING TECHNOLOGY CO., LTD.; Z Free format text: FORMER OWNER: SHANGHAI NO.20 YE CONCRETE MEMBER CO., LTD. Effective date: 20080523 |
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Effective date of registration: 20080523 Address after: 777, Pangu Road, Baoshan District, Shanghai: 201900 Co-patentee after: Zhongye Saide Engineering Technology Co., Ltd. Patentee after: Shanghai twenty Metallurgy Engineering Technology Co., Ltd. Address before: 777, Pangu Road, Baoshan District, Shanghai: 201900 Patentee before: Shanghai No 20 Metallurgical Concrete Component Co., Ltd. |
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