CN103527867A - Pre-stressed steel cylinder concrete pipe for jacking construction - Google Patents
Pre-stressed steel cylinder concrete pipe for jacking construction Download PDFInfo
- Publication number
- CN103527867A CN103527867A CN201310521550.3A CN201310521550A CN103527867A CN 103527867 A CN103527867 A CN 103527867A CN 201310521550 A CN201310521550 A CN 201310521550A CN 103527867 A CN103527867 A CN 103527867A
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- China
- Prior art keywords
- pipe
- wall
- steel bars
- pressure
- tube core
- 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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Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 23
- 239000010959 steel Substances 0.000 title claims abstract description 23
- 238000010276 construction Methods 0.000 title claims abstract description 17
- 239000004567 concrete Substances 0.000 title abstract description 8
- 230000002787 reinforcement Effects 0.000 claims description 19
- 239000011513 prestressed concrete Substances 0.000 claims description 11
- 239000004570 mortar (masonry) Substances 0.000 claims description 8
- 239000003351 stiffener Substances 0.000 claims description 8
- 238000005507 spraying Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 8
- 238000005336 cracking Methods 0.000 abstract description 5
- 239000011150 reinforced concrete Substances 0.000 abstract description 5
- 238000005260 corrosion Methods 0.000 abstract description 3
- 230000007797 corrosion Effects 0.000 abstract description 3
- 239000002994 raw material Substances 0.000 abstract description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 abstract 4
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/08—Rigid pipes of concrete, cement, or asbestos cement, with or without reinforcement
- F16L9/085—Reinforced pipes
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The invention provides a pre-stressed steel cylinder concrete pipe for jacking construction. The pre-stressed steel cylinder concrete pipe comprises a pipe core, bell mouth, a socket, longitudinal steel bars, strengthened reinforcing steel bars, circumferentially reinforcing steel bars. The bell mouth and the socket are arranged between the inner wall and the outer wall of the pipe core, the longitudinal steel bars are arranged outside the pipe core and used for bearing jacking force, the circumferentially reinforcing steel bar wound on the outer surface of the pipe core and used for bearing inside and outside pressure, and a steel cylinder is nested inside the pipe core. Due to the fact that a pre-stressing technique is adopted, wall thickness t is enabled to be thinner, self weight of a pipe body is lowered, raw materials are saved, and transportation and construction are facilitated; in addition, by the pre-stressing technique, the pipe can bear higher internal pressure load, work pressure can reach by above 2.0MPa, pipe cracking pressure is 2-3 times that of the work pressure and much lager than an existing steel cylinder reinforced concrete pipe, and a pipe body does not crack under the condition of work load combination, so that corrosion of the steel bars is avoided. The pipe bears the jacking force by the aid of the outer wall of the pipe core, and strengthened reinforcing steel bars are arranged to strengthen the stress position, so that the inner wall of the pipe core does not bear the jacking force.
Description
Technical field
The present invention relates to concrete product field, especially relate to the pressure piping that a kind of jacking construction is used.
Background technique
Jacking construction is to utilize the equipment such as jack that prefabricated box-shaped or tubular structure thing are headed into below ground gradually, to form crossings on different level passage or to contain firm method of construction.Jacking construction requires agent structure concrete strength must reach design strength, and waterproof level protective layer completes by design.In existing technology, have a kind of band cylinder reinforced concrete pipe with steel, it can, for jacking construction technique, can bear certain internal pressure and external pressure load.But existing band cylinder reinforced concrete pipe with steel exists deadweight excessive, cracking load low (suitable with working pressure), tubing is work with cracking often, and after cracking, reinforcing bar or steel cylinder are easily by technical problems such as corrosions.
Summary of the invention
The problem to be solved in the present invention has been to provide a kind of simple in structure, simple to operate, Prestressed concrete cylinder pipe for jacking construction that manufacturing efficiency is high, is especially applicable to the pressure piping that jacking construction is used.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of Prestressed concrete cylinder pipe, comprise tube core, be arranged on bellmouth and socket between tube core inner and outer wall, be arranged on beyond tube core for bear longitudinal steel bar, the stiffener of top power and be wrapped in tube core outer surface for bearing the circumferential reinforcement of inside and outside pressure, tube core inside is embedded with steel cylinder.
Further, the spraying of circumferential reinforcement outer surface is through the mortar cover of smooth processing.
Further, circumferential reinforcement is prestressed reinforcement.
Further, longitudinal steel bar is nonprestressed reinforcement.
Further, stiffener is hoop nonprestressed reinforcement.
Further, bellmouth length is greater than slot length.
Further, the clean thickness of mortar cover is not less than 20mm.
Advantage and good effect that the present invention has are: pressure piping of the present invention has adopted prestressing technique, have made body wall thickness t attenuation, and body deadweight reduces, and have saved raw material, convenient transportation and construction; In addition, owing to having adopted prestressing technique, tubing can bear higher interior pressure load, more than working inner pressure can reach 2.0MPa, tubing cracking pressure is 2～3 times of working pressure, be far longer than existing band cylinder reinforced concrete pipe with steel, and tubing do not ftracture at working load combination lower tube body, avoided the corrosion problem of reinforcing bar.This kind of tubing utilizes tube core outer wall to bear top power, and stiffener is set strengthens stressed position, and tube core inwall does not bear top power.Smooth processing has been carried out on this kind of outer pipe wall " mortar cover " surface, can reach the smooth degree of ordinary reinforced concrete tube outer surface, can not increase the frictional force in body jack-in process.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention
Fig. 2 is joint schematic diagram of the present invention
In figure:
1, bellmouth 2, stiffener 3, longitudinal steel bar
4, mortar cover 5, circumferential reinforcement 6, tube core outer wall concrete
7, socket 8, tube core internal-wall concrete 9, steel cylinder
10, seal ring
Embodiment
As illustrated in fig. 1 and 2, the invention provides a kind of Prestressed concrete cylinder pipe for jacking construction, comprise tube core, be arranged on bellmouth 1 and socket 7 between tube core inner and outer wall, be arranged on beyond tube core for bear longitudinal steel bar 3, the stiffener 2 of top power and be wrapped in tube core outer surface for bearing the circumferential reinforcement 5 of inside and outside pressure, at concrete pipe core inner embedding antiseepage steel cylinder 9, under design pressure, can reach watertight effect.
The nonprestressed reinforcement that stiffener 2 is arranged for hoop, for strengthening bearing the position of top power.
The clean thickness of mortar cover 4 is not less than 20mm, and major function is that guard ring is to prestressed reinforcement.Protective layer outer surface, through striking off processing, is beneficial to jacking construction.
Pipeline configuration of the present invention has formed and can be applicable to jacking construction, can bear again a kind of compound pressure piping of inside and outside pressure load.
Interface section adopts rubber seal 10 sealings.
Bellmouth length B is greater than slot length S.
Above embodiments of the invention are had been described in detail, but described content is only preferred embodiment of the present invention, can not be considered to for limiting practical range of the present invention.All equalization variations of doing according to the scope of the invention and improvement etc., within all should still belonging to this patent covering scope.
Claims (7)
1. the Prestressed concrete cylinder pipe for jacking construction, comprise tube core, be arranged on bellmouth and socket between tube core inner and outer wall, be arranged on beyond tube core for bearing longitudinal steel bar, the stiffener of top power, and be wrapped in tube core outer surface for bearing the circumferential reinforcement of inside and outside pressure, it is characterized in that: described tube core inside is embedded with steel cylinder.
2. Prestressed concrete cylinder pipe according to claim 1, is characterized in that: described circumferential reinforcement outer surface spraying is through the mortar cover of smooth processing.
3. Prestressed concrete cylinder pipe according to claim 1, is characterized in that: described circumferential reinforcement is prestressed reinforcement.
4. Prestressed concrete cylinder pipe according to claim 1, is characterized in that: described longitudinal steel bar is nonprestressed reinforcement.
5. Prestressed concrete cylinder pipe according to claim 1, is characterized in that: described stiffener is hoop nonprestressed reinforcement.
6. Prestressed concrete cylinder pipe according to claim 1, is characterized in that: described bellmouth length is greater than slot length.
7. Prestressed concrete cylinder pipe according to claim 2, is characterized in that: the clean thickness of described mortar cover is not less than 20mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310521550.3A CN103527867A (en) | 2013-10-29 | 2013-10-29 | Pre-stressed steel cylinder concrete pipe for jacking construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310521550.3A CN103527867A (en) | 2013-10-29 | 2013-10-29 | Pre-stressed steel cylinder concrete pipe for jacking construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103527867A true CN103527867A (en) | 2014-01-22 |
Family
ID=49930099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310521550.3A Pending CN103527867A (en) | 2013-10-29 | 2013-10-29 | Pre-stressed steel cylinder concrete pipe for jacking construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103527867A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105736851A (en) * | 2016-04-27 | 2016-07-06 | 大连理工大学 | A kind of anti-cracking structure of prestressed steel cylinder concrete pipe socket and its manufacturing method |
| CN108758109A (en) * | 2018-04-28 | 2018-11-06 | 安徽砼宇特构科技有限公司 | Concrete pipe easy to assemble |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7207603B2 (en) * | 2003-03-11 | 2007-04-24 | Grant Prideco, L.P. | Insulated tubular assembly |
| CN201028172Y (en) * | 2007-05-24 | 2008-02-27 | 天津万联管道工程有限公司 | Steel cylinder reinforced steel faucet concrete top pipe |
| CN201028150Y (en) * | 2007-04-29 | 2008-02-27 | 天津万联管道工程有限公司 | Steel faucet steel wire net slice steel cylinder longitudinal rib prestressed concrete pipe |
| CN101311597A (en) * | 2007-05-24 | 2008-11-26 | 天津万联管道工程有限公司 | Steel faucet concrete ceiling coil with steel cylinder |
| CN201475520U (en) * | 2009-08-18 | 2010-05-19 | 四川省富侨工业有限公司 | Reinforced concrete pipe for jacking construction method |
| US20100171301A1 (en) * | 2009-01-02 | 2010-07-08 | Unisert Multiwall Systems, Inc. | Multiwall pipe lip seal joint |
-
2013
- 2013-10-29 CN CN201310521550.3A patent/CN103527867A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7207603B2 (en) * | 2003-03-11 | 2007-04-24 | Grant Prideco, L.P. | Insulated tubular assembly |
| CN201028150Y (en) * | 2007-04-29 | 2008-02-27 | 天津万联管道工程有限公司 | Steel faucet steel wire net slice steel cylinder longitudinal rib prestressed concrete pipe |
| CN201028172Y (en) * | 2007-05-24 | 2008-02-27 | 天津万联管道工程有限公司 | Steel cylinder reinforced steel faucet concrete top pipe |
| CN101311597A (en) * | 2007-05-24 | 2008-11-26 | 天津万联管道工程有限公司 | Steel faucet concrete ceiling coil with steel cylinder |
| US20100171301A1 (en) * | 2009-01-02 | 2010-07-08 | Unisert Multiwall Systems, Inc. | Multiwall pipe lip seal joint |
| CN201475520U (en) * | 2009-08-18 | 2010-05-19 | 四川省富侨工业有限公司 | Reinforced concrete pipe for jacking construction method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105736851A (en) * | 2016-04-27 | 2016-07-06 | 大连理工大学 | A kind of anti-cracking structure of prestressed steel cylinder concrete pipe socket and its manufacturing method |
| CN105736851B (en) * | 2016-04-27 | 2017-08-25 | 大连理工大学 | A kind of anti-cracking structure of prestressed steel cylinder concrete pipe socket and its manufacturing method |
| CN108758109A (en) * | 2018-04-28 | 2018-11-06 | 安徽砼宇特构科技有限公司 | Concrete pipe easy to assemble |
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| Date | Code | Title | Description |
|---|---|---|---|
| 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 |
Application publication date: 20140122 |