CN202302366U - Prestressed steel cylinder concrete jacking pipe - Google Patents
Prestressed steel cylinder concrete jacking pipe Download PDFInfo
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- CN202302366U CN202302366U CN2011203800227U CN201120380022U CN202302366U CN 202302366 U CN202302366 U CN 202302366U CN 2011203800227 U CN2011203800227 U CN 2011203800227U CN 201120380022 U CN201120380022 U CN 201120380022U CN 202302366 U CN202302366 U CN 202302366U
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Abstract
The utility model relates to a prestressed steel cylinder concrete jacking pipe. The prestressed steel cylinder concrete jacking pipe provided by the technical scheme of the utility model comprises a concrete pipe core and outer ring reinforcing steel bar concrete outside the concrete pipe core and is characterized in that the concrete pipe core is formed by pouring concrete in an cavity formed by an inner cylindrical steel template, an outer cylindrical steel template, a bottom mould and a top mould; a cylindrical steel cylinder is fixed in the cavity before pouring so that the female end of the concrete pipe core is provided with a female steel ring, an insertion hole steel ring is arranged on the insertion hole end of the concentrate pipe core; one end of the cylindrical steel cylinder, corresponding to the female end, is connected with the female steel ring; and one end of the cylindrical steel cylinder, corresponding to the insertion hole end, is connected with the insertion hole steel ring. The prestressed steel cylinder concrete jacking pipe provided by the utility model can bear larger jacking force during jacking construction, is provided with a grouting channel for grouting and reducing resistance during construction, can bear larger internal water pressure and external load, and has strong permeability resistance, better leakage prevention because a joint is sealed by using two paths of sealing rings, longer service life, and lower engineering cost in comparison with similar construction methods.
Description
Technical field
The utility model relates to a kind of water delivery and uses 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; The first-selected tubing of pipeline designs especially under the situation of the higher working pressure of larger caliber particularly, the pipeline 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 can not directly being used for jacking construction operation external enwergy.When the traffic conditions in city and geographical environment comprise open-air pipeline installation, run under 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, and the welded steel pipe cost is higher, and the outer wall anticorrosive coat rubs bad easily; And owing to be the direct jacking of steel pipe; Because of road alternation 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 the steel pipe design life was generally 20 years.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 a mortar cover, and is more crude, in uneven thickness, be generally 30 millimeter, can not directly be used for the jacking operation.Present important engineering non-excavation pipeline designs scheme relatively more commonly used is a first top ordinary reinforced concrete push pipe, and then in the ordinary reinforced concrete push pipe, wears steel pipe or Prestressed concrete cylinder pipe, but this scheme cost is very high.
Summary of the invention
The purpose of the utility model is to overcome the deficiency that common Prestressed concrete cylinder pipe in the existing technology, non-prestressed steel cylinder concrete push pipe and steel pipe etc. exist, and 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.
The prestress steel cylinder concrete push pipe of the technological scheme that provides according to the utility model; 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:
Said concrete tube core is meant with 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 arranged, the socket end has socket steel ring; End corresponding to female end on said cylindrical shape steel cylinder connects the bellmouth steel loop, corresponding to the end connection socket steel ring of socket end;
Said outer ring reinforced concrete is meant: 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; Build outer ring reinforced concrete then; The socket end of outer ring reinforced concrete is higher than the socket end of concrete tube core when building, and 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 said 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 accomplishing;
The female end of said 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 said outer ring reinforced concrete offers the slip casting passage.Said concrete tube core outside is wound with reinforcement wire.The upper-end surface semicircle of described slip casting passage reinforced concrete along the outer ring is radially offered.On socket steel ring, offer injected hole, 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, said injected hole and slip casting channel connection.An end of said bellmouth steel loop is outward-dipping, forms outer guiding slope.
The end outer wall of said socket steel ring offers two ring o-ring grooves, on the socket steel ring between the two ring o-ring grooves, offers the pressure testing hole.Said concrete tube core wall thickness is 1/14 ~ 1/16 times of internal diameter of the pipeline.The total wall thickness of said prestress steel cylinder concrete push pipe is 1/10 times of internal diameter of the pipeline.Weld with bellmouth steel loop and socket steel ring and through the hydrostatic test mutually at the two ends of said cylindrical shape steel cylinder.Said concrete tube core is through applying prestressed concrete tube core; The Framework Of Steel Reinforcement of said outer ring reinforced concrete can adopt Steel Fibre to replace.
The push pipe of the utility model 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 the overall structure schematic representation of the utility model.
Fig. 2 is one of jacking construction figure of the utility model.
Fig. 3 be the utility model jacking construction figure two.
Fig. 4 is that the jacking construction of the utility model is accomplished schematic representation.
Fig. 5 is the A-A sectional view of Fig. 4.
Embodiment
Below in conjunction with concrete accompanying drawing and embodiment the utility model is described further.
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, and the bellmouth end face of concrete tube core 9 is concordant with the bottom end of outer ring reinforced concrete 2, and 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; Can jacking force 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; The two end part of reinforced concrete 2 outer side walls are fixed with and strengthen steel loop 6 in the outer ring; In order to improve the anti-end thrust ability of tubing, 21 places, upper-end surface of reinforced concrete 2 offer several slip casting passages 4 in the outer ring, 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; Outwards pull out the guiding slope when make the lower end of said bellmouth steel loop 16, make things convenient for the pipeline assembling, 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, and outer wall offers two rings and places the groove 17 of rubber seal 7 in the upper end portion of socket steel ring 10, on the socket steel ring 10 between the two ring o-ring grooves 17, offers pressure testing hole 13.Step overlaps with outer step in during the pipeline assembling, and bellmouth steel loop 16, socket steel ring 10 and rubber seal are formed the seal for pipe joints interface, can check the pipe joint sealing through pressure testing hole 13, in time confirm installation quality.
On socket steel ring 10, offer several injected holes 18; 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; Said injected hole 18 is communicated with slip casting passage 4, the upper end portion welding of the underpart of said steel cylinder 8 and bellmouth steel loop 16, the underpart welding of the upper end portion of said steel cylinder 8 and socket steel ring 10.
The upper-end surface of said slip casting passage 4 reinforced concrete 2 along the outer ring is radially offered; Be semi-circular recesses; Outside pipe, annotate thixotropic slurry through slurry injection pipe 11, injected hole 18, slip casting passage 4 during use with the resistance of reducing friction; Use to finish the back with cement slurry displacement drag reduction thixotropic slurry, play antisepsis, seal slurry injection pipe 11 with the pipe plug 12 of corresponding specification after the displacement completion in order to fixing tubing with to bellmouth steel loop 16, socket steel ring 10.
Said concrete tube core 9 wall thickness are generally 1/14 ~ 1/16 times of internal diameter of the pipeline, and the total wall thickness of said prestress steel cylinder concrete push pipe is generally 1/10 times of internal diameter of the pipeline.
In the utility model, 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 effect 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 effect of outer ring reinforced concrete 2 is the effects of bearing axial top power together, protecting reinforcement wire 1, bear external load with concrete tube core 9, and the outer wall smoother can be used for jacking construction simultaneously.Said Framework Of Steel Reinforcement 19 can replace with Steel Fibre.
Steel wire anchoring piece 3 is used for fixing reinforcement wire 1.
Play buffer function at the pipe end surface of contact when sheeting caps 5 is jacking construction, be uniformly distributed with jacking force.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, on slip casting passage 4 positions, reserve the gap that equates with semicircle slip casting channel diameter during adhesion between plate and the plate, be beneficial to slurries and can pass through smoothly.
Bellmouth steel loop 16 is pipe coupling, is used for butt joint mutually between the pipeline, with socket steel ring 10 and the rubber seal 7 common black boies of forming.
Claims (10)
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:
Said concrete tube core (9) is meant with 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) arranged, the socket end has socket steel ring (10); An end of going up corresponding to female end at said cylindrical shape steel cylinder (8) connects bellmouth steel loop (16), corresponding to the end connection socket steel ring (10) of socket end;
Said outer ring reinforced concrete (2) is meant in the outside of concrete tube core (9) places Framework Of Steel Reinforcement (19); The cylindrical shape Sheet Steel Form is put in outside at Framework Of Steel Reinforcement (19); Build outer ring reinforced concrete (2) then; 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 said outer ring reinforced concrete (2) when building and the female end of concrete tube core (9) be seated on the same bed die, build the female end of accomplishing back concrete tube core (9) and outer ring reinforced concrete (2) and be in same plane (20);
The female end of said 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 said outer ring reinforced concrete (2) offers slip casting passage (4).
2. prestress steel cylinder concrete push pipe as claimed in claim 1 is characterized in that: said concrete tube core (9) outside is wound with reinforcement wire (1).
3. prestress steel cylinder concrete push pipe as claimed in claim 1 is characterized in that: the upper-end surface semicircle of described slip casting passage (4) reinforced concrete (2) along the outer ring is radially offered.
4. prestress steel cylinder concrete push pipe as claimed in claim 1; It is characterized in that: on socket steel ring (10), offer injected hole (18); 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 said injected hole (18) is communicated with slip casting passage (4).
5. prestress steel cylinder concrete push pipe as claimed in claim 1 is characterized in that: an end of said bellmouth steel loop (16) is outward-dipping, forms outer guiding slope.
6. prestress steel cylinder concrete push pipe as claimed in claim 1; It is characterized in that: the end outer wall of said socket steel ring (10) offers two ring o-ring grooves (17), on the socket steel ring (10) between the two ring o-ring grooves (17), offers pressure testing hole (13).
7. prestress steel cylinder concrete push pipe as claimed in claim 1 is characterized in that: said concrete tube core (9) wall thickness is 1/14 ~ 1/16 times of internal diameter of the pipeline.
8. prestress steel cylinder concrete push pipe as claimed in claim 1 is characterized in that: the total wall thickness of said prestress steel cylinder concrete push pipe is 1/10 times of internal diameter of the pipeline.
9. 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 through the hydrostatic test mutually at the two ends of said cylindrical shape steel cylinder (8).
10. prestress steel cylinder concrete push pipe as claimed in claim 1 is characterized in that: said concrete tube core (9) is through applying prestressed concrete tube core; Said Framework Of Steel Reinforcement is a Steel Fibre.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203800227U CN202302366U (en) | 2011-09-28 | 2011-09-28 | Prestressed steel cylinder concrete jacking pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203800227U CN202302366U (en) | 2011-09-28 | 2011-09-28 | Prestressed steel cylinder concrete jacking pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202302366U true CN202302366U (en) | 2012-07-04 |
Family
ID=46371261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203800227U Withdrawn - After Issue CN202302366U (en) | 2011-09-28 | 2011-09-28 | Prestressed steel cylinder concrete jacking pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202302366U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102359672A (en) * | 2011-09-28 | 2012-02-22 | 无锡华毅管道有限公司 | Prestressed steel cylinder concrete push pipe |
| CN107109937A (en) * | 2014-09-10 | 2017-08-29 | 麦可洛水利公司 | Integrated form push pipe |
-
2011
- 2011-09-28 CN CN2011203800227U patent/CN202302366U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102359672A (en) * | 2011-09-28 | 2012-02-22 | 无锡华毅管道有限公司 | Prestressed steel cylinder concrete push pipe |
| CN107109937A (en) * | 2014-09-10 | 2017-08-29 | 麦可洛水利公司 | Integrated form push pipe |
| US10370967B2 (en) | 2014-09-10 | 2019-08-06 | Mekorot Water Company, Ltd. | Integrated jacking pipes |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120704 Effective date of abandoning: 20130529 |
|
| RGAV | Abandon patent right to avoid regrant |