CN103538145A - Long-tube-section precast concrete pile construction method - Google Patents
Long-tube-section precast concrete pile construction method Download PDFInfo
- Publication number
- CN103538145A CN103538145A CN201310504306.6A CN201310504306A CN103538145A CN 103538145 A CN103538145 A CN 103538145A CN 201310504306 A CN201310504306 A CN 201310504306A CN 103538145 A CN103538145 A CN 103538145A
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- CN
- China
- Prior art keywords
- mold
- construction method
- pile
- tube
- parts
- Prior art date
- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B21/00—Methods or machines specially adapted for the production of tubular articles
- B28B21/02—Methods or machines specially adapted for the production of tubular articles by casting into moulds
- B28B21/10—Methods or machines specially adapted for the production of tubular articles by casting into moulds using compacting means
- B28B21/22—Methods or machines specially adapted for the production of tubular articles by casting into moulds using compacting means using rotatable mould or core parts
- B28B21/30—Centrifugal moulding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B21/00—Methods or machines specially adapted for the production of tubular articles
- B28B21/56—Methods or machines specially adapted for the production of tubular articles incorporating reinforcements or inserts
- B28B21/60—Methods or machines specially adapted for the production of tubular articles incorporating reinforcements or inserts prestressed reinforcements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B21/00—Methods or machines specially adapted for the production of tubular articles
- B28B21/56—Methods or machines specially adapted for the production of tubular articles incorporating reinforcements or inserts
- B28B21/68—Methods or machines specially adapted for the production of tubular articles incorporating reinforcements or inserts and applying centrifugal forces
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Structural Engineering (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses a long-tube-section precast concrete pile construction method. The method is characterized by including coating concrete release agent on the mold inner wall and the mold end cover torus; placing a reinforcement cage required by pile production into a mold cavity, and then closing the upper mold and the lower mold; conveying configured concrete to the mold cavity, and straightening a preset hole mandrel; tensioning the reinforcement cage in the mold, and applying pre-stressing; hanging the mold to a centrifuge to centrifuge and form, and then performing high-pressure steam curing; pulling out the preset hole mandrel of the cured and formed tube section, and disassembling the mold. The invention further provides a construction method of the long-tube-section precast concrete pile, production process is simple, since the mole is closed at first, the upper mold and the lower mold are closed tightly, the problem of precast concrete pile commissure leakage is solved, the pile quality is guaranteed, the produced precast pile is higher in ensile strength and flexural capacity, and beat resistant capacity of the long-tube-section precast concrete pile is improved greatly.
Description
Technical field
the present invention relates to a kind of construction method of long joint concrete precast pile.
Background technology
long joint concrete precast pile is widely used in the great foundation engineerings such as road, bridge, water conservancy, electric power and metallurgy of China's Coastal Areas.Along with the development of engineering, more and more higher to the requirement of long joint concrete large-diameter tubular pile, its demand is also increasing.The bending resistance of the concrete-pile adopting at present and resistance to tension and effective compressive pre-stress value are less than normal, and concrete configuration is the deciding factor that determines concrete tubular pile performance.
Summary of the invention
technical problem to be solved by this invention is just to provide a kind of construction method of long joint concrete precast pile, can greatly improve the intensity of concrete precast pile.
for solving the problems of the technologies described above, technical scheme of the present invention is: a kind of construction method of long joint concrete precast pile, and its construction procedure is as follows:
(1) at mould inner wall and die end bezel ring, face brushing concrete parting agent;
(2) by producing the required steel reinforcement cage of pile tube, pack dies cavity into, then close up upper and lower mould;
(3) by the concrete conveyance configuring to dies cavity, straightening preformed hole plug;
(4) steel reinforcement cage in mould is carried out to stretch-draw, apply prestressing force;
(5) by mold hoisting to centrifugal forming on centrifuge, then carry out autoclave curing;
(6) the moulding tube coupling after maintenance is extracted to preformed hole plug, and remove mould.
as preferably, the concrete described in step (3) is formed by following material configuration: 500 parts of portland cements, its strength grade is not less than 42.5 grades, 700 parts, fine aggregate river sand, 1000 parts of rubbles, 140 parts, water, 6 parts of high efficiency water reducing agents.
as preferably, its stretch-draw intensity of the stretch-draw described in step (4) is 0.7 times of steel reinforcement cage overall strength, and the stretch-draw time is 10-60 second.
as preferably, autoclave curing described in step (5), its pressure is that 10 atmospheric pressure, temperature are 180 degree.
beneficial effect of the present invention: the construction method that the invention provides a kind of long joint concrete precast pile, production technology is simple, owing to adopting first matched moulds, make upper and lower mould close closelyr, solved the problem of concrete precast pile joint close spillage, guaranteed pile tube quality, prefabricated pile tensile strength and the bending resistance produced are stronger, have greatly improved the anti-strike ability of long joint concrete precast pile.
The specific embodiment
the following stated is only better embodiment of the present invention, and the equivalence of doing according to structure, feature and principle described in patent claim of the present invention therefore all changes or modifies, and is included in patent claim of the present invention.
embodiment: a kind of construction method of long joint concrete precast pile, its construction procedure is as follows:
(1) at mould inner wall and die end bezel ring, face brushing concrete parting agent.
(2) by producing the required steel reinforcement cage of pile tube, pack dies cavity into, then close up upper and lower mould, the method that adopts first matched moulds to be in the milk again, can avoid because concrete particle drops, being difficult to close tightly when matched moulds, causes upper and lower mould joint close compared with causing greatly spillage.
(3) by the concrete conveyance configuring to dies cavity, straightening preformed hole plug.Its concrete is formed by following material configuration: 500 parts of portland cements, its strength grade is not less than 42.5 grades, 700 parts, fine aggregate river sand, 1000 parts of rubbles, 140 parts, water, 6 parts of high efficiency water reducing agents.
(4) steel reinforcement cage in mould is carried out to stretch-draw, apply prestressing force, its stretch-draw intensity is 0.7 times of steel reinforcement cage overall strength, and the stretch-draw time is 10-60 second.
(5) by mold hoisting to centrifugal forming on centrifuge, then carry out autoclave curing, its pressure is that 10 atmospheric pressure, temperature are 180 degree.
(6) the moulding tube coupling after maintenance is extracted to preformed hole plug, and remove mould.
the invention provides a kind of construction method of long joint concrete precast pile, production technology is simple, owing to adopting first matched moulds, make upper and lower mould close closelyr, solved the problem of concrete precast pile joint close spillage, guaranteed pile tube quality, prefabricated pile tensile strength and the bending resistance produced are stronger, have greatly improved the anti-strike ability of long joint concrete precast pile.
Claims (4)
1. a construction method for long joint concrete precast pile, is characterized in that construction procedure is as follows:
(1) at mould inner wall and die end bezel ring, face brushing concrete parting agent;
(2) by producing the required steel reinforcement cage of pile tube, pack dies cavity into, then close up upper and lower mould;
(3) by the concrete conveyance configuring to dies cavity, straightening preformed hole plug;
(4) steel reinforcement cage in mould is carried out to stretch-draw, apply prestressing force;
(5) by mold hoisting to centrifugal forming on centrifuge, then carry out autoclave curing;
(6) the moulding tube coupling after maintenance is extracted to preformed hole plug, and remove mould.
2. the construction method of a kind of long joint concrete precast pile according to claim 1, it is characterized in that: the concrete described in step (3) is formed by following material configuration: 500 parts of portland cements, its strength grade is not less than 42.5 grades, 700 parts, fine aggregate river sand, 1000 parts of rubbles, 140 parts, water, 6 parts of high efficiency water reducing agents.
3. the construction method of a kind of long joint concrete precast pile according to claim 1, is characterized in that: its stretch-draw intensity of the stretch-draw described in step (4) is 0.7 times of steel reinforcement cage overall strength, and the stretch-draw time is 10-60 second.
4. the construction method of a kind of long joint concrete precast pile according to claim 1, is characterized in that: autoclave curing described in step (5), its pressure is that 10 atmospheric pressure, temperature are 180 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310504306.6A CN103538145A (en) | 2013-10-24 | 2013-10-24 | Long-tube-section precast concrete pile construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310504306.6A CN103538145A (en) | 2013-10-24 | 2013-10-24 | Long-tube-section precast concrete pile construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103538145A true CN103538145A (en) | 2014-01-29 |
Family
ID=49962186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310504306.6A Pending CN103538145A (en) | 2013-10-24 | 2013-10-24 | Long-tube-section precast concrete pile construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103538145A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85205055U (en) * | 1985-11-30 | 1987-04-01 | 北京电力设备总厂 | Prestressed concrete pile |
| CN85108550A (en) * | 1985-11-30 | 1987-06-03 | 清华大学 | Prestressed concrete foundation pile |
| CN1133771A (en) * | 1995-10-13 | 1996-10-23 | 广州羊城管桩有限公司 | Technique for mfg. prestressed high-strength concrete pipe pile by blending grinding fine building sand |
| JP2005154213A (en) * | 2003-11-27 | 2005-06-16 | Fuji Ps Corp | Binder composition in high durable concrete, product of high durable concrete and method of manufacturing the same |
| CN2782763Y (en) * | 2005-04-08 | 2006-05-24 | 王伟明 | Pretensioned type steel strand prestressed concrete pipe pile |
| CN102490263A (en) * | 2011-11-18 | 2012-06-13 | 宁波海港工程有限公司 | Pipe joint production method for concrete pipe piles with long pipe joints |
-
2013
- 2013-10-24 CN CN201310504306.6A patent/CN103538145A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85205055U (en) * | 1985-11-30 | 1987-04-01 | 北京电力设备总厂 | Prestressed concrete pile |
| CN85108550A (en) * | 1985-11-30 | 1987-06-03 | 清华大学 | Prestressed concrete foundation pile |
| CN1133771A (en) * | 1995-10-13 | 1996-10-23 | 广州羊城管桩有限公司 | Technique for mfg. prestressed high-strength concrete pipe pile by blending grinding fine building sand |
| JP2005154213A (en) * | 2003-11-27 | 2005-06-16 | Fuji Ps Corp | Binder composition in high durable concrete, product of high durable concrete and method of manufacturing the same |
| CN2782763Y (en) * | 2005-04-08 | 2006-05-24 | 王伟明 | Pretensioned type steel strand prestressed concrete pipe pile |
| CN102490263A (en) * | 2011-11-18 | 2012-06-13 | 宁波海港工程有限公司 | Pipe joint production method for concrete pipe piles with long pipe joints |
Non-Patent Citations (1)
| Title |
|---|
| 张俊娟等: "长管节大管桩的管节生产工艺", 《土工基础》 * |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for 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 |
Application publication date: 20140129 |