CN202925459U - Fish ridge pipe bundle of super altitude difference, super long length, and super tonnage - Google Patents
Fish ridge pipe bundle of super altitude difference, super long length, and super tonnage Download PDFInfo
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- CN202925459U CN202925459U CN201220553421.3U CN201220553421U CN202925459U CN 202925459 U CN202925459 U CN 202925459U CN 201220553421 U CN201220553421 U CN 201220553421U CN 202925459 U CN202925459 U CN 202925459U
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- fish ridge
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Abstract
The utility model discloses a fish ridge pipe bundle of super altitude difference, super long length, and super tonnage. A plurality of layers of overlapping pipe bundles are composed of prestressing force pipelines with a plurality of air outlets. The prestressing force pipelines with the air outlets comprise horizontal section pipelines and sloping section pipelines. A vertical and curved area is arranged on one end portions of the sloping section pipelines. The two sloping section pipelines are connected with two end openings of the horizontal section pipelines through the vertical and curved area in a smooth and guiding through mode. The air outlet holes are arranged in the vertical and curved area and the horizontal section pipelines. Air outlet sleeve pipes are arranged on an upper sleeve pipe of a pipeline on which the air outlet holes are arranged in a sealing and sleeved mode. Connecting air taps are arranged on the air outlet sleeve pipes and the connecting air taps are communicated with the air outlet holes. According to the fish ridge pipe bundle of super altitude difference, super long length, and super tonnage, air is exhausted by the air outlet holes added and arranged ingeniously, thus pressing slurry in the inner portion of the pipeline is thick and a hollow cavity is not easy to be produced. Durability of the structure is improved. Requirements that slurry is filled by the prestressing force pipeline of super altitude difference, super long length, and super tonnage can be met. The fish ridge pipe bundle of super altitude difference, super long length, and super tonnage is suitable for a large-span concrete fish ridge continuous beam bridge.
Description
Technical field
The utility model relates to the bridge construction technical field, relates in particular to that a kind of superelevation is poor, overlength, the tube bank of super-tonnage fish ridge.
Background technology
In the fish ridge wall body process of constructing Large Span Prestressed footpath (such as 158m) concrete fish ridge continuous girder bridge, its fish ridge wall is as the main stress structure, because of the particularity of its form of structure, fish keel prestressed strand pipeline has superelevation poor (such as 20m), overlength (such as 156m), super-tonnage (such as 31-φ
s15.20) characteristics, how the various conventional bridge guarantees its duct grouting compactness, to guarantee the durability of structure, is one of its key technology.
Conventional continuous girder bridge is the deck type structure, the less (≤27-φ of the general tension tonnage of the prestressed strand of employing
s15.20), the linear layout feature of its prestressed strand is, the longer steel bundle discrepancy in elevation is less, the conventional common grouting process that adopts of pumping of prostressed duct (is namely used cement paste, mix external additive, before the mud jacking first with the flushing of pressure clear water will mud jacking the duct, again the side pressure of cement paste from the hole entered, the other end is discharged the underflow rear enclosed.Intensified pressure continues to finish after 2-5 minute to the 0.5-0.7 MPa) or the vacuum grouting method (on the common grouting process basis, adopt air in the vacuum pump evacuation aperture, make the vacuum that forms negative pressure 0.1MPa in the duct, and then mud jacking).
Concrete fish ridge continuous girder bridge is the lower support type structure, and for reducing prestress pipe to the weakening of fish ridge wall body, the prestressed strand tension tonnage that adopts in the fish ridge wall body is large (such as 31-φ
s15.20), its prestressed strand layout feature is, the longer steel bundle discrepancy in elevation is larger, wherein be arranged in steel Shu Chaochang (such as 156m), the superelevation poor (such as 20m) of top, if adopt conventional vacuum grouting method or common grouting process, easily cause local cavity, the leakiness of producing of pipe interior (particularly top), reduce the durability of structure.
Therefore, those skilled in the art be devoted to develop a kind of can reduce empty position in the prestress pipe and improve that the superelevation of pipeline inner concrete compactness is poor, overlength, the tube bank of super-tonnage fish ridge.
The utility model content
Because the defects of prior art, technical problem to be solved in the utility model provide a kind of can reduce empty position in the prestress pipe and improve that the superelevation of pipeline inner concrete compactness is poor, overlength, the tube bank of super-tonnage fish ridge.
For achieving the above object, the utility model provides a kind of superelevation poor, overlength, the tube bank of super-tonnage fish ridge, it is by some multilayer build-up tube banks that form with the prestress pipe of venthole, described prestress pipe with venthole comprises that horizontal segment pipeline and an end are with the tilting section pipeline that erects curved district, two described tilting section device for cleaning pipelines are crossed the described perpendicular mild conducting in curved district and are connected on the two-port of described horizontal segment pipeline, described venthole is arranged on described perpendicular curved district and the described horizontal segment pipeline, bobbin seal is arranged with out gas bushing on the described venthole pipeline of living in, describedly go out on the gas bushing to be provided with the connection valve, described connection valve and described venthole conducting.
Better, the described venthole that arranges on every described prestress pipe with venthole is three, an interlude that is arranged on described horizontal segment pipeline, two other is separately positioned in the described perpendicular curved district of described tilting section pipeline, further improves exhaust effect.
Better, totally 60 of described prestress pipes with venthole are divided into 15 layers, every layer of 4 superimposed setting.
Better, be circumscribed with escape pipe on the described connection valve, be labeled with the mark of corresponding different pipeline ventholes on the described escape pipe.
Better, the gas outlet setting position of described escape pipe and the vertical distance of described venthole are not less than 50cm.
Fish ridge of the present utility model tube bank is particularly useful for striding greatly footpath concrete fish ridge continuous girder bridge, and according to designing requirement and the construction speed of its fish ridge wall body, the adaptive fish ridge wall body that is embedded in can mate, adopt easily the prestress pipe two ends to carry out simultaneously mud jacking.By two ends mud jacking and the ingenious venthole exhaust that adds, can be more effectively with the air emptying in the prestress pipe, so that the pipe interior mud jacking is closely knit, be difficult for producing the cavity, improved the durability of structure, construction technology is simple, can satisfy that superelevation is poor, overlength, super-tonnage prestress pipe grouting demand, is very suitable for striding greatly footpath concrete fish ridge continuous girder bridge.
Be described further below with reference to the technique effect of accompanying drawing to design of the present utility model, concrete structure and generation, to understand fully the purpose of this utility model, feature and effect.
Description of drawings
Fig. 1 is that a kind of superelevation of an embodiment of the present utility model is poor, the prestress pipe grouting process schematic flow sheet of overlength, the tube bank of super-tonnage fish ridge.
Fig. 2 is the structural representation of a kind of fish ridge tube bank of an embodiment.
Fig. 3 is the enlarged diagram of the local A of Fig. 2.
Fig. 4 is the structural representation in the B-B cross section of Fig. 2.
Fig. 5 is the structural representation of the single prestress pipe with venthole of fish ridge tube bank.
Fig. 6 is the Local C enlarged diagram of Fig. 4.
The specific embodiment
Such as Fig. 2 and shown in Figure 4, a kind of superelevation of a specific embodiment of the present utility model is poor, overlength, the tube bank of super-tonnage fish ridge, by some multilayer build-up tube banks 1 that form with the prestress pipe 2 of venthole, as shown in Figure 3, prestress pipe 2 with venthole comprises that horizontal segment pipeline 21 and an end are with the tilting section pipeline 23 that erects curved district 22, two tilting section pipelines 23 are connected on the two-port of horizontal segment pipeline 21 by perpendicular curved district 22 mild conductings, described venthole (not shown) is arranged on perpendicular curved district 22 and the horizontal segment pipeline 21, as shown in Figure 5, bobbin seal is arranged with out gas bushing 4 on the described venthole pipeline of living in, go out to be provided with on the gas bushing 4 and connect valve 5, connection valve 5 and described venthole conducting.Exemplary, the conducting welding realized that with seamless steel pipe two-port and prestress pipe sealing is sheathed by silica gel with the seamless steel pipe of the galvanized pipe that connects valve in the middle of the sleeve 4 of giving vent to anger can adopt.
Concrete, shown in Fig. 2-4,60 prestress pipes 2 with venthole are adopted in tube bank 1, are divided into 15 layers, every layer of 4 superimposed setting; Every is three with the described venthole that arranges on the prestress pipe 2 of venthole, an interlude that is arranged on horizontal segment pipeline 21, and two other is separately positioned in the perpendicular curved district 22 of tilting section pipeline 23; Be circumscribed with escape pipe 3 on the connection valve 5, be labeled with the mark of corresponding different pipeline ventholes on the escape pipe 3; As shown in Figure 6, the vertical distance H of the gas outlet setting position of escape pipe 3 and described venthole is that 50cm or other are not less than the distance of 50cm.Certainly, in other embodiments, can also adopt the prestress pipe of other quantity, with venthole also can arrange as required.
The tube bank of the fish ridge of present embodiment is particularly useful for striding greatly footpath concrete fish ridge continuous girder bridge, and according to designing requirement and the construction speed of its fish ridge wall body, the adaptive fish ridge wall body that is embedded in can mate, adopt easily the prestress pipe two ends to carry out simultaneously mud jacking.
Exemplary, the application of present embodiment is as follows:
Fish ridge wall body on striding greatly footpath concrete fish ridge continuous girder bridge is built in the mould prestress pipe is carried out the tube bank of multilayer build-up formation fish ridge, then carry out the concreting of fish ridge wall body, after described concrete reaches design strength, carry out prestressed stretch-draw, then carry out the grouting construction of prestress pipe; Wherein, described prestress pipe is performed such grouting, may further comprise the steps as shown in Figure 1:
Preparation before step S1, the grouting:
S1.1, prefabricated such as Fig. 3 and the prestress pipe 2 with venthole shown in Figure 5: comprise that horizontal segment pipeline 21 and an end are with the tilting section pipeline 23 in perpendicular curved district 22, two tilting section pipelines 23 are connected on the two-port of horizontal segment pipeline 21 by perpendicular curved district 22 mild conductings, and described venthole (not shown) is arranged on perpendicular curved district 22 and the horizontal segment pipeline 21;
S1.2, in the time of will being deployed to the prestress pipe 2 of venthole described fish ridge wall body and building mould, each conducting connects an escape pipe 3 on described venthole, and escape pipe 3 is extended to described fish ridge wall body builds outside the mould.
Step S2, duct grouting: by carry out simultaneously the mud jacking construction with the two-port of the prestress pipe 2 of venthole, ducted air is discharged to the outside by venthole by escape pipe 3, two-port continues mud jacking, the escape pipe 3 that full pulp occurs is carried out shutoff, until escape pipe 3 all after the shutoff, is stopped the mud jacking construction.
Exemplary, as shown in Figure 6, the gas outlet setting position of escape pipe 3 and the vertical distance H of described venthole are 50cm; As shown in Figure 3, at the interlude of horizontal segment pipeline 21 venthole is set, in the perpendicular curved district 22 of two tilting section pipelines 23, a venthole is set respectively; As shown in Figure 5, prestress pipe 2 with venthole also comprises gas bushing 4, going out gas bushing 4 sealing shrouds is located on the described venthole pipeline of living in, go out to be provided with on the gas bushing 4 and connect valve 5, connect valve 5 and described venthole conducting, in conjunction with shown in Figure 4, escape pipe 3 conductings are connected to and connect on the valve 5, concrete, the conducting welding realized that with seamless steel pipe two-port and prestress pipe sealing is sheathed by silica gel with the seamless steel pipe of the galvanized pipe that connects valve 5 in the middle of the described sleeve 4 of giving vent to anger can adopt.
More than describe preferred embodiment of the present utility model in detail.Should be appreciated that those of ordinary skill in the art need not creative work and just can make many modifications and variations according to design of the present utility model.
Therefore, all in the art technician comply with design of the present utility model on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment, all should be in the determined protection domain by claims.
Claims (5)
1. a superelevation is poor, overlength, the tube bank of super-tonnage fish ridge, it is characterized in that: by some multilayer build-up tube banks that form with the prestress pipe of venthole, described prestress pipe with venthole comprises that horizontal segment pipeline and an end are with the tilting section pipeline that erects curved district, two described tilting section device for cleaning pipelines are crossed the described perpendicular mild conducting in curved district and are connected on the two-port of described horizontal segment pipeline, described venthole is arranged on described perpendicular curved district and the described horizontal segment pipeline, bobbin seal is arranged with out gas bushing on the described venthole pipeline of living in, describedly go out on the gas bushing to be provided with the connection valve, described connection valve and described venthole conducting.
2. poor, the overlength of superelevation as claimed in claim 1, the tube bank of super-tonnage fish ridge, it is characterized in that: the described venthole that arranges on every described prestress pipe with venthole is three, an interlude that is arranged on described horizontal segment pipeline, two other is separately positioned in the described perpendicular curved district of described tilting section pipeline.
3. poor, the overlength of superelevation as claimed in claim 1, the tube bank of super-tonnage fish ridge is characterized in that: totally 60 of described prestress pipes with venthole are divided into 15 layers, every layer of 4 superimposed setting.
4. poor, the overlength of superelevation as claimed in claim 1, the tube bank of super-tonnage fish ridge is characterized in that: be circumscribed with escape pipe on the described connection valve, be labeled with the mark of corresponding different pipeline ventholes on the described escape pipe.
5. poor, the overlength of superelevation as claimed in claim 2, the tube bank of super-tonnage fish ridge, it is characterized in that: the gas outlet setting position of described escape pipe and the vertical distance of described venthole are not less than 50cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220553421.3U CN202925459U (en) | 2012-10-26 | 2012-10-26 | Fish ridge pipe bundle of super altitude difference, super long length, and super tonnage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220553421.3U CN202925459U (en) | 2012-10-26 | 2012-10-26 | Fish ridge pipe bundle of super altitude difference, super long length, and super tonnage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202925459U true CN202925459U (en) | 2013-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220553421.3U Expired - Fee Related CN202925459U (en) | 2012-10-26 | 2012-10-26 | Fish ridge pipe bundle of super altitude difference, super long length, and super tonnage |
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| Country | Link |
|---|---|
| CN (1) | CN202925459U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102877415A (en) * | 2012-10-26 | 2013-01-16 | 上海市城市建设设计研究总院 | Ultra-high-difference, ultra-long and ultra-large-tonnage prestress pipeline grouting method and herring-bone pipe bundle |
| CN104652280A (en) * | 2014-12-23 | 2015-05-27 | 上海市城市建设设计研究总院 | One-time continuous forming and pouring method for ultralong post-poured fish ridge wall and ultralong fish ridge wall |
-
2012
- 2012-10-26 CN CN201220553421.3U patent/CN202925459U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102877415A (en) * | 2012-10-26 | 2013-01-16 | 上海市城市建设设计研究总院 | Ultra-high-difference, ultra-long and ultra-large-tonnage prestress pipeline grouting method and herring-bone pipe bundle |
| CN102877415B (en) * | 2012-10-26 | 2014-07-09 | 上海市城市建设设计研究总院 | Ultra-high-difference, ultra-long and ultra-large-tonnage prestress pipeline grouting method and herring-bone pipe bundle |
| CN104652280A (en) * | 2014-12-23 | 2015-05-27 | 上海市城市建设设计研究总院 | One-time continuous forming and pouring method for ultralong post-poured fish ridge wall and ultralong fish ridge wall |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130508 Termination date: 20211026 |