CN102359672B - Prestressed steel cylinder concrete push pipe - Google Patents
Prestressed steel cylinder concrete push pipe Download PDFInfo
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- CN102359672B CN102359672B CN 201110299731 CN201110299731A CN102359672B CN 102359672 B CN102359672 B CN 102359672B CN 201110299731 CN201110299731 CN 201110299731 CN 201110299731 A CN201110299731 A CN 201110299731A CN 102359672 B CN102359672 B CN 102359672B
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- steel cylinder
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 111
- 239000010959 steel Substances 0.000 title claims abstract description 111
- 239000004567 concrete Substances 0.000 title claims abstract description 80
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 35
- 230000002787 reinforcement Effects 0.000 claims description 16
- 238000007569 slipcasting Methods 0.000 claims description 13
- 239000002002 slurry Substances 0.000 claims description 12
- 238000012360 testing method Methods 0.000 claims description 9
- 238000002347 injection Methods 0.000 claims description 8
- 239000007924 injection Substances 0.000 claims description 8
- 239000011513 prestressed concrete Substances 0.000 claims description 8
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 239000000835 fiber Substances 0.000 claims description 3
- 238000007598 dipping method Methods 0.000 claims description 2
- 230000002706 hydrostatic effect Effects 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 5
- 238000007789 sealing Methods 0.000 abstract description 3
- 230000003487 anti-permeability effect Effects 0.000 abstract 1
- 238000013461 design Methods 0.000 description 4
- 238000003466 welding Methods 0.000 description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 2
- 230000003260 anti-sepsis Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000010977 jade Substances 0.000 description 2
- 238000003032 molecular docking Methods 0.000 description 2
- 239000004587 polysulfide sealant Substances 0.000 description 2
- 230000009974 thixotropic effect Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
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- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The invention relates to a prestressed steel cylinder concrete push pipe. The prestressed steel cylinder concrete push pipe according to the technical scheme provided by the invention comprises a concrete pipe core and outer-ring reinforced concrete positioned outside the concrete pipe core and is characterized in that: the concrete pipe core is formed by pouring concrete in a cavity formed by cylindrical inner and outer steel mold plates, a bottom mold and a top mold; a cylinder steel cylinder is fixed in the cavity before pouring, a socket steel ring is arranged at the socket end of the concrete pipe core, and a jack steel ring is arranged at the jack end of the concrete pipe core, wherein the socket steel ring which corresponds to one end of the socket end is connected to the cylindrical steel cylinder, and the jack steel ring which is connected to one end of the jack end is connected to the cylinder steel cylinder. The prestressed steel cylinder concrete push pipe provided by the invention can bear larger pushing force during pushing construction, is provided with a grouting channel for grouting and drag reduction during construction, can bear larger internal water pressure and external load, strong anti-permeability of a pipe body, better leakproof property because two seal rings are used for sealing a joint, longer service life and lower construction cost compared with simular construction methods.
Description
Technical field
The present invention relates to a kind of water delivery concrete pressure pipe, especially a kind of prestress steel cylinder concrete push pipe.
Background technique
Since domestic introduction Prestressed concrete cylinder pipe of the nineties initial stage, this tubing of Prestressed concrete cylinder pipe becomes the main tubing of domestic water delivery water pipeline gradually with its uniqueness, comprehensive superiority, particularly larger caliber than the situation of high workload pressure under the first-selected tubing of pipeline designs especially, Pipe Cost is low, maintenance cost is low, anti-external load anti-in strong, the design service life long (reaching 50 years) of hydraulic pressure ability, adapt to various use occasion except not being directly used in jacking construction operation external enwergy.When the traffic conditions in city and geographical environment comprise open-air pipeline installation, run in the situation that needed arterial traffic, generally do not allow to slot and carry out the laying of Prestressed concrete cylinder pipe, at this moment must use push pipe.
Directly the pressure piping tubing of jacking mainly contains welded steel pipe and non-prestressed steel cylinder concrete push pipe at present, the welded steel pipe cost is higher, the outer wall anticorrosive coat rubs bad easily, and owing to be the direct jacking of steel pipe, because the road alternate load produces fatigue ruption, the inwall decay resistance is also relatively poor easily, and every jacking one joint steel pipe will carry out weld job, long construction period, and Steel Pipe Design is generally 20 years service life.Non-prestressed steel cylinder concrete push pipe formula can also be used when working pressure is low in pipe because it does not have prestressing force, when working pressure reach 0.6MPa and when above quantity of reinforcement very high, the engineering cost costliness.Common Prestressed concrete cylinder pipe is because its outer wall is mortar cover, and is more crude, in uneven thickness, be generally 30 millimeter, can not be directly used in the jacking operation.The non-excavation pipeline designs scheme that present important comparison between projects is commonly used is first top ordinary reinforced concrete push pipe, and then wears steel pipe or Prestressed concrete cylinder pipe in the ordinary reinforced concrete push pipe, but this scheme cost is very high.
Summary of the invention
The objective of the invention is to overcome the deficiency that common Prestressed concrete cylinder pipe in the prior art, non-prestressed steel cylinder concrete push pipe and steel pipe etc. exist, a kind of resistance that can reduce jacking construction is provided, can be applied to the prestress steel cylinder concrete push pipe of the higher occasion of working pressure, long service life.
Prestress steel cylinder concrete push pipe according to technological scheme provided by the invention, comprise the concrete tube core and be positioned at the outer outer ring reinforced concrete of concrete tube core, one end of concrete tube core and outer ring reinforced concrete is the socket end, and the other end is female end, it is characterized in that:
Described concrete tube core refers to building the concrete tube core that forms in the concrete cavity that Sheet Steel Form, bed die and backform form inside and outside cylindrical shape, in cavity, fix a cylindrical shape steel cylinder before building, make the female end of concrete tube core that the bellmouth steel loop be arranged, the socket end has socket steel ring; On described cylindrical shape steel cylinder corresponding to an end coupling faucet steel loop of female end, corresponding to an end connection socket steel loop of socket end;
Described outer ring reinforced concrete refers to: Framework Of Steel Reinforcement is placed in the outside at the concrete tube core, put the cylindrical shape Sheet Steel Form in the outside of Framework Of Steel Reinforcement, then build outer ring reinforced concrete, the socket end of outer ring reinforced concrete is higher than the socket end of concrete tube core when building, the concrete of building covers on the top of concrete of cylindrical shape steel cylinder external lateral portion of concrete tube core, forms a complete pressure-bearing plane; The female end of described outer ring reinforced concrete when building and the female end of concrete tube core be seated on the same bed die, build that the female end of concrete tube core and outer ring reinforced concrete is in same plane after finishing;
The female end of described outer ring reinforced concrete and the outer side wall of socket end all are fixed with the reinforcement steel loop, and the socket end face of described outer ring reinforced concrete offers the slip casting passage.Described concrete tube core outside is wound with reinforcement wire.Described slip casting passage is radially offered along the upper-end surface semicircle of outer ring reinforced concrete.Offer injected hole at socket steel ring, the socket steel ring inwall in the injected hole position is welded with slurry injection pipe, and the inwall of slurry injection pipe has internal thread and can join with pipe plug, described injected hole and slip casting channel connection.An end of described bellmouth steel loop is outward-dipping, forms outer guiding slope.
The end outer wall of described socket steel ring offers two ring o-ring grooves, and the socket steel ring between two ring o-ring grooves offers the pressure testing hole.Described concrete tube core wall thickness is 1/14 ~ 1/16 times of internal diameter of the pipeline.The total ancient piece of jade, round, flat and with a hole in its centre of described prestress steel cylinder concrete push pipe is thick to be 1/10 times of internal diameter of the pipeline.Weld with bellmouth steel loop and socket steel ring and mutually through the hydrostatic test at the two ends of described cylindrical shape steel cylinder.Described concrete tube core is through applying prestressed concrete tube core; The Framework Of Steel Reinforcement of described outer ring reinforced concrete can adopt Steel Fibre to replace.
Push pipe of the present invention suffered resistance when jacking construction is little, and speed of application is fast, and body and interface impermeability are good, can be applied to the higher occasion of working pressure, long service life, and similar construction method engineering cost is low.
Description of drawings
Fig. 1 is overall structure schematic representation of the present invention.
Fig. 2 is one of jacking construction figure of the present invention.
Fig. 3 is two of jacking construction figure of the present invention.
Fig. 4 is that jacking construction of the present invention is finished schematic representation.
Fig. 5 is the A-A sectional view of Fig. 4.
Embodiment
The invention will be further described below in conjunction with concrete drawings and Examples.
As shown in the figure, this prestress steel cylinder concrete push pipe, it is included in concrete tube core 9 outer outer ring reinforced concrete 2 of building moulding, the bellmouth end face of concrete tube core 9 is concordant with the bottom end of outer ring reinforced concrete 2, the upper end portion of outer ring reinforced concrete 2 exceeds the top of concrete certain altitude of concrete tube core 9 socket end steel cylinder external lateral portion and covers on it when building, form a complete plane, jacking force can be evenly spread to the steel cylinder external lateral portion of outer ring reinforced concrete 2 and concrete tube core 9 during the pipeline jacking, there is pre-buried steel wire anchoring piece 3 at concrete tube core 9 two ends, in order to fixing reinforcement wire 1, be fixed with reinforcement steel loop 6 at the two end part of outer ring reinforced concrete 2 outer side walls, in order to improve the anti-end thrust ability of tubing, 21 places, upper-end surface at outer ring reinforced concrete 2 offer several slip casting passages 4, in order to reduce the surface friction drag between tubing and soil;
Internal preset has steel cylinder 8 in concrete tube core 9, the female end of concrete tube core 9 has interior step, the socket end has outer step, in the concrete tube core 9 of interior step position, be provided with bellmouth steel loop 16 and weld in advance with steel cylinder 8, the lower end of described bellmouth steel loop 16 outwards pulls out the guiding slope, makes things convenient for Tube formation when making, limit, convenient and steel cylinder 8 welding are inwardly pulled in the upper end of bellmouth steel loop 16.The concrete tube core 9 of step position is provided with socket steel ring 10 outside, offers two rings at the upper end portion of socket steel ring 10 outer wall and places the groove 17 of rubber seal 7, and the socket steel ring 10 between two ring o-ring grooves 17 offers pressure testing hole 13.Step overlaps with outer step in during Tube formation, and bellmouth steel loop 16, socket steel ring 10 and rubber seal form the seal for pipe joints interface, can check the pipe joint sealing by pressure testing hole 13, in time confirm installation quality.
Offer several injected holes 18 at socket steel ring 10, socket steel ring 10 inwalls in injected hole 18 positions are welded with slurry injection pipe 11, the inwall of slurry injection pipe 11 has internal thread, described injected hole 18 is communicated with slip casting passage 4, the upper end portion welding of the underpart of described steel cylinder 8 and bellmouth steel loop 16, the underpart welding of the upper end portion of described steel cylinder 8 and socket steel ring 10.
Described slip casting passage 4 is radially offered along the upper-end surface of outer ring reinforced concrete 2, be semi-circular recesses, outside pipe, annotate thixotropic slurry with capable of reducing friction resistance by slurry injection pipe 11, injected hole 18, slip casting passage 4 during use, replace the drag reduction thixotropic slurry with cement slurry after using end, play antisepsis in order to fixing tubing with to bellmouth steel loop 16, socket steel ring 10, the pipe plug 12 with dimension after displacement is finished seals slurry injection pipe 11.
Described concrete tube core 9 wall thickness are generally 1/14 ~ 1/16 times of internal diameter of the pipeline, and the total ancient piece of jade, round, flat and with a hole in its centre of described prestress steel cylinder concrete push pipe is thick to be generally 1/10 times of internal diameter of the pipeline.
Among the present invention, reinforcement wire 1 makes concrete tube core 9 produce compressive pre-stress, makes pipeline can bear internal water pressure and external load.
Outer ring reinforced concrete 2 is the part of pipeline configuration main body, and the position is provided with Framework Of Steel Reinforcement 19 therebetween, and the Main Function of Framework Of Steel Reinforcement 19 is to guarantee that when jacking outer ring reinforced concrete 2 is that an integral body is unlikely to occur longitudinal crack.The Main Function of outer ring reinforced concrete 2 is the effects of bearing together axial top power, protecting reinforcement wire 1, bear external load with concrete tube core 9, and the outer wall smoother can be used for jacking construction simultaneously.Described Framework Of Steel Reinforcement 19 can replace with Steel Fibre.
Steel wire anchoring spare 3 is used for fixing reinforcement wire 1.
When being jacking construction, sheeting caps 5 plays buffer function, uniform jacking force at the pipe end surface of contact.Sheeting caps 5 is some fan-shaped planks, its quantity and slip casting passage 4 quantity equate, sheeting caps 5 sticks to outer ring reinforced concrete 2 upper end portions with glue before jacking construction, reserve the gap that equates with semicircle slip casting channel diameter during adhesion between plate and the plate in slip casting passage 4 positions, be beneficial to slurries and can pass through smoothly.
Rubber seal 7 is placed in the o-ring groove 17, is the pipe joint sealed member.
Pressure testing hole 13 is used for checking whether good seal of mounted pipe coupling.
Bellmouth steel loop 16 is pipe coupling, is used for mutually docking between the pipeline, with socket steel ring 10 and the rubber seal 7 common black boies that form.
Claims (9)
1. prestress steel cylinder concrete push pipe, it comprises concrete tube core (9) and is positioned at the outer outer ring reinforced concrete (2) of concrete tube core (9), one end of concrete tube core (9) and outer ring reinforced concrete (2) is the socket end, and the other end is female end, it is characterized in that:
Described concrete tube core (9) refers to building the concrete tube core that forms in the concrete cavity that Sheet Steel Form, bed die and backform form inside and outside cylindrical shape, in cavity, fix a cylindrical shape steel cylinder (8) before building, make the female end of concrete tube core (9) that bellmouth steel loop (16) be arranged, the socket end has socket steel ring (10); At the upper end coupling faucet steel loop (16) corresponding to female end of described cylindrical shape steel cylinder (8), corresponding to an end connection socket steel loop (10) of socket end;
Described outer ring reinforced concrete (2) refers to place Framework Of Steel Reinforcement (19) in the outside of concrete tube core (9), the cylindrical shape Sheet Steel Form is put in outside at Framework Of Steel Reinforcement (19), then build outer ring reinforced concrete (2), the socket end of outer ring reinforced concrete (2) is higher than the socket end of concrete tube core (9) when building, the concrete of building covers on the top of concrete of cylindrical shape steel cylinder (8) external lateral portion of concrete tube core (9), forms a complete pressure-bearing plane (21); The female end of described outer ring reinforced concrete (2) when building and the female end of concrete tube core (9) be seated on the same bed die, build that the female end of concrete tube core (9) and outer ring reinforced concrete (2) is in same plane (20) after finishing;
The female end of described outer ring reinforced concrete (2) and the outer side wall of socket end all are fixed with strengthens steel loop (6), and the socket end face of described outer ring reinforced concrete (2) offers slip casting passage (4);
Described slip casting passage (4) is radially offered along the upper-end surface semicircle of outer ring reinforced concrete (2).
2. prestress steel cylinder concrete push pipe as claimed in claim 1 is characterized in that: be wound with reinforcement wire (1) outside the described concrete tube core (9).
3. prestress steel cylinder concrete push pipe as claimed in claim 1, it is characterized in that: offer injected hole (18) at socket steel ring (10), socket steel ring (10) inwall in injected hole (18) position is welded with slurry injection pipe (11), the inwall of slurry injection pipe (11) has internal thread and can join with pipe plug (12), and described injected hole (18) is communicated with slip casting passage (4).
4. prestress steel cylinder concrete push pipe as claimed in claim 1, it is characterized in that: an end of described bellmouth steel loop (16) is outward-dipping, forms outer guiding slope.
5. prestress steel cylinder concrete push pipe as claimed in claim 1, it is characterized in that: the end outer wall of described socket steel ring (10) offers two ring o-ring grooves (17), and the socket steel ring (10) between two ring o-ring grooves (17) offers pressure testing hole (13).
6. prestress steel cylinder concrete push pipe as claimed in claim 1, it is characterized in that: described concrete tube core (9) wall thickness is 1/14 ~ 1/16 times of internal diameter of the pipeline.
7. prestress steel cylinder concrete push pipe as claimed in claim 1, it is characterized in that: the total wall thickness of described prestress steel cylinder concrete push pipe is 1/10 times of internal diameter of the pipeline.
8. prestress steel cylinder concrete push pipe as claimed in claim 1 is characterized in that: weld with bellmouth steel loop (16) and socket steel ring (10) and mutually through the hydrostatic test at the two ends of described cylindrical shape steel cylinder (8).
9. prestress steel cylinder concrete push pipe as claimed in claim 1 is characterized in that: described concrete tube core (9) is for through applying prestressed concrete tube core; Described Framework Of Steel Reinforcement is Steel Fibre.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110299731 CN102359672B (en) | 2011-09-28 | 2011-09-28 | Prestressed steel cylinder concrete push pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110299731 CN102359672B (en) | 2011-09-28 | 2011-09-28 | Prestressed steel cylinder concrete push pipe |
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| CN102359672A CN102359672A (en) | 2012-02-22 |
| CN102359672B true CN102359672B (en) | 2013-05-29 |
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| CN 201110299731 Active CN102359672B (en) | 2011-09-28 | 2011-09-28 | Prestressed steel cylinder concrete push pipe |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2315405Y (en) * | 1997-09-30 | 1999-04-21 | 无锡华毅管道有限公司 | Spigot and socket steel ring for high efficiency prestressed steel tube concrete pipe |
| CN2589774Y (en) * | 2002-11-25 | 2003-12-03 | 国统国际股份有限公司 | push-in prestressed concrete pipe |
| CN100489361C (en) * | 2005-11-17 | 2009-05-20 | 上海交通大学 | Method for reducing prop force with ring-shape mud sheath in pipe-jacking construction |
| 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 |
| CN101373034B (en) * | 2007-08-22 | 2011-08-17 | 天津万联管道工程有限公司 | Steel sleeve reinforced concrete pipe |
| CN202302366U (en) * | 2011-09-28 | 2012-07-04 | 无锡华毅管道有限公司 | Prestressed steel cylinder concrete jacking pipe |
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