CN209162647U - It is box girder pre-stressed to bend up bellows grouting exhaust slurry stop on the outside of steel beam - Google Patents
It is box girder pre-stressed to bend up bellows grouting exhaust slurry stop on the outside of steel beam Download PDFInfo
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- CN209162647U CN209162647U CN201821760643.6U CN201821760643U CN209162647U CN 209162647 U CN209162647 U CN 209162647U CN 201821760643 U CN201821760643 U CN 201821760643U CN 209162647 U CN209162647 U CN 209162647U
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- bellows
- stop
- jacking block
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Abstract
The utility model belongs to Construction Technique of Box field, bellows grouting exhaust slurry stop on the outside of steel beam is bent up more particularly to one kind is box girder pre-stressed, it solves box beam and bends up the exhaust of bellows mud jacking not exclusively, the problem for leading to the hidden danger of quality of the not full initiation of mud jacking while preventing slurries excessive, including exhaust pipe, box beam main body is stretched out at the top of exhaust pipe to be communicated with the atmosphere, exhaust bottom of the tube is provided with connecting plate, exhaust grouting stop-valve body is provided in exhaust pipe, being vented grouting stop-valve body includes exhaust only slurry casing, exhaust only starches in casing and is provided with jacking block and lower panel, jacking block is that middle part is provided with the cylindrical block of conical cavity and the vertex of conical cavity is arranged upward, bottom plate is that jacking block lower part is in horizontally disposed circular slab, it is provided in the cavity that jacking block and lower panel form and only starches ball and be provided with perforation in the middle part of jacking block and lower panel Stomata.The utility model ensure that mud jacking can be realized orderly, while reduce mud jacking task difficulty, improve mud jacking efficiency.
Description
Technical field
The utility model belongs to Construction Technique of Box field, and in particular to one kind is box girder pre-stressed to bend up ripple on the outside of steel beam
Pipe grouting is vented slurry stop.
Background technique
The design of box girder web, ceiling location, which generally comprises, bends up prestressed strand, bends up prestressed strand tensioning completion
After need to bellows carry out mud jacking.The slurries of bellows mud jacking generally use cement slurry and are pressed into from one end to the other side, water
Mud depended on pressure and self gravity fill entire bellows duct, and centre bends up part confined space easy to form, usual way
It is exhausted to be penetrated in bellows using plastic flexible pipe, but whether hose is able to maintain in bellows during lasting slip casting
Top is difficult to control, and is unable to ensure air and excludes completely, and the plumpness in turn resulting in subsequent mud jacking cannot be guaranteed, construction quality
There are unknown hidden danger, and operating personnel is needed to carry out plugging operation after the completion of being vented, and construction is more inconvenient.
Summary of the invention
The utility model bends up the exhaust of bellows mud jacking not exclusively to solve box beam, leads to the matter of the not full initiation of mud jacking
The problem that amount hidden danger prevents slurries excessive simultaneously provides and a kind of box girder pre-stressed bend up bellows grouting on the outside of steel beam and be vented
Slurry stop.
The utility model is realized by following technical approach: one kind is box girder pre-stressed to bend up bellows note on the outside of steel beam
Slurry exhaust slurry stop, the exhaust slurry stop main body on section bellows top is bent up including being arranged in, is vented slurry stop master
Body includes vertically disposed exhaust pipe, stretches out box beam main body at the top of exhaust pipe and is communicated with the atmosphere, and exhaust bottom of the tube is provided with connection
Plate, is provided with exhaust grouting stop-valve body in exhaust pipe, and exhaust grouting stop-valve body includes exhaust only slurry casing, exhaust only setting in slurry casing
There are jacking block and lower panel, jacking block is that middle part is provided with the cylindrical block of conical cavity and the vertex of conical cavity is set upward
It sets, bottom plate is that jacking block lower part is in horizontally disposed circular slab, is provided in the cavity that jacking block and lower panel form and only starches
The stomata of perforation is provided in the middle part of ball and jacking block and lower panel.
Further, connecting plate uses flexible material, and has on connecting plate and bend up a section bellows outer annular protrusion
Adaptable groove, connecting plate is using adhesive tape and bends up a section bellows bonding.
Further, only slurry casing and exhaust pipe are interference fitted for exhaust.
Further, only slurry ball is hollow steel ball and only the gravity of slurry ball is less than the buoyancy of cement slurry.
The working principle of the utility model is: at least two gas vent is opened up on bending up section bellows, by the utility model
Exhaust slurry stop body normal place in bending up section bellows, and guarantee to cover completely with the connecting plate of exhaust pipe lower part fixation
Lid gas vent region, then after connecting plate fitting is bent up section bellows, it is firm using adhesive tape winding bonding, at this time in gravity
The lower only slurry ball of effect is contacted with the lower panel for being vented grouting stop-valve body, original in pipe when carrying out the perfusion of cement slurry in bellows
Air can constantly move upwards and by gas vent reach exhaust pipe in, the air into exhaust pipe can be by lower panel
Stomata enters in conical cavity body, is discharged eventually by the upper end of stomata and exhaust pipe in the middle part of jacking block；With bellows
The continuous perfusion of interior cement slurry, the gas in bellows are constantly discharged, from row after cement slurry, which is completely filled with, bends up section bellows
Stomata is spilled over in exhaust pipe, as liquid level of the cement slurry in exhaust pipe constantly increases, enters circle by lower panel therewith
In cone-shaped cavity, under the action of growing number of cement slurry buoyancy, on the one hand only slurry ball it will float and finally be contacted with jacking block,
Another aspect grout filling expires entire cavity, realizes exhaust grouting stop-valve body under cement grout and the only collective effect of slurry ball
Tight closure.
The utility model has the beneficial effect that compared with prior art
The utility model simple structure and reasonable design ensure that using exhaust slurry stop and bend up a section ripple inner air tube
It can be completely exhausted out, efficiently solve the box girder pre-stressed bellows that bends up on the outside of steel beam and asked in mud jacking construction there are uncompacted
Topic not only preferably plays scavenging action using exhaust grouting stop-valve body, but also has achieved the purpose that only to starch.The utility model is protected
Having demonstrate,proved mud jacking can orderly realize, while reduce mud jacking task difficulty, improve mud jacking efficiency.
Detailed description of the invention
Fig. 1 is the structural schematic diagram under the utility model use state；
Fig. 2 is the structural schematic diagram that grouting stop-valve body is vented in Fig. 1.
In figure: 1- exhaust pipe, 2- are vented grouting stop-valve body, and 2.1- exhaust, which stops, starches casing, 2.2- lower panel, 2.3- jacking block,
2.4- only starches ball, 3- connecting plate, and 4- bends up a section bellows, 5- gas vent.
Specific embodiment
The utility model is further elaborated referring to Figures 1 and 2, one kind is box girder pre-stressed to bend up ripple on the outside of steel beam
Pipe grouting is vented slurry stop, the exhaust slurry stop main body on 4 top of section bellows is bent up including being arranged in, only slurry fills for exhaust
Setting main body includes vertically disposed exhaust pipe 1, stretches out box beam main body at the top of exhaust pipe 1 and is communicated with the atmosphere, the setting of 1 bottom of exhaust pipe
There is connecting plate 3, exhaust grouting stop-valve body 2 is provided in exhaust pipe 1, exhaust grouting stop-valve body 2 includes exhaust only slurry casing 2.1, exhaust
It only starches and is provided with jacking block 2.3 and lower panel 2.2 in casing 2.1, jacking block 2.3 is the cylindrical block that middle part is provided with conical cavity
The vertex of body and conical cavity is arranged upward, and bottom plate 2.2 is that 2.3 lower part of jacking block is in horizontally disposed circular slab, is located at top
It is provided in the cavity that block 2.3 and lower panel 2.2 form and only starches ball 2.4 and be provided with perforation in the middle part of jacking block 2.3 and lower panel 2.2
Stomata.
Connecting plate 3 use flexible material, and on connecting plate 3 with bend up 4 outer annular protrusion of section bellows be adapted
Groove, connecting plate 3 using adhesive tape and bend up section bellows 4 bond.Wherein, flexible material is easy for curved material, such as
The galvanized steel plain sheet part bellows skin even identical with 4 model of section bellows is bent up of rubber slab, 2mm thickness；This outside link plate 3
Groove and the protrusion for bending up section bellows 4 that contacts can be fitted close, the gas for preventing from bending up in section bellows 4 is logical
The contact gap for crossing the two enters outside bellows.
Exhaust grouting stop-valve body 2 is arranged in exhaust pipe 1 and is kept fixed, and only slurry casing 2.1 is matched with 1 interference of exhaust pipe for exhaust
It closes, wherein the outer diameter that casing 2.1 is only starched in exhaust is greater than 1 0.8~1mm of internal diameter of exhaust pipe.Only slurry ball 2.4 is hollow steel ball, according to
The size of the property and grouting pressure value of institute's injection slurry in bellows, the gravity for only starching ball 2.4 must be less than the buoyancy of cement slurry.
So that when injection slurry enter and be full of between jacking block 2.3 and lower panel 2.2 conical bores after, only starch ball 2.4 can float simultaneously
The stomata for blocking 2.3 middle part of jacking block is realized and stops slurry effect.
After slip casting in bellows, the exhaust pipe 1 that will exceed box beam main body is removed, the lower part of exhaust pipe 1, connecting plate
3 and exhaust grouting stop-valve body 2 stay in box beam concrete main body, be further higher than box beam main body concrete one etc. using intensity
The pea gravel concreten of grade is closely knit by top holes blocking.
Claims (4)
1. one kind is box girder pre-stressed to bend up bellows grouting exhaust slurry stop on the outside of steel beam, it is characterised in that: including setting
In the exhaust slurry stop main body for bending up a section bellows (4) top, being vented slurry stop main body includes vertically disposed exhaust pipe
(1), box beam main body is stretched out at the top of exhaust pipe (1) to be communicated with the atmosphere, exhaust pipe (1) bottom is provided with connecting plate (3), exhaust pipe
(1) exhaust grouting stop-valve body (2) is provided in, exhaust grouting stop-valve body (2) includes being vented only slurry casing (2.1), and casing is only starched in exhaust
(2.1) jacking block (2.3) and lower panel (2.2) are provided in, jacking block (2.3) is the cylindrical block that middle part is provided with conical cavity
The vertex of body and conical cavity is arranged upward, and bottom plate (2.2) is that jacking block (2.3) lower part is in horizontally disposed circular slab, position
Only ball (2.4) are starched and jacking block (2.3) and lower panel (2.2) in being provided in the cavity that jacking block (2.3) and lower panel (2.2) form
Middle part is provided with the stomata of perforation.
2. the box girder pre-stressed bellows grouting that bends up on the outside of steel beam according to claim 1 is vented slurry stop, special
Sign is: connecting plate (3) uses flexible material, and has on connecting plate (3) and bend up a section bellows (4) outer annular protrusion phase
The groove of adaptation, connecting plate (3) is using adhesive tape and bends up a section bellows (4) bonding.
3. the box girder pre-stressed bellows grouting that bends up on the outside of steel beam according to claim 1 is vented slurry stop, special
Sign is: only slurry casing (2.1) and exhaust pipe (1) are interference fitted for exhaust.
4. the box girder pre-stressed bellows grouting that bends up on the outside of steel beam according to claim 1 or 2 is vented slurry stop,
It is characterized in that: only starching buoyancy of the gravity less than cement slurry that ball (2.4) are hollow steel ball and only starch ball (2.4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821760643.6U CN209162647U (en) | 2018-10-29 | 2018-10-29 | It is box girder pre-stressed to bend up bellows grouting exhaust slurry stop on the outside of steel beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821760643.6U CN209162647U (en) | 2018-10-29 | 2018-10-29 | It is box girder pre-stressed to bend up bellows grouting exhaust slurry stop on the outside of steel beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209162647U true CN209162647U (en) | 2019-07-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821760643.6U Active CN209162647U (en) | 2018-10-29 | 2018-10-29 | It is box girder pre-stressed to bend up bellows grouting exhaust slurry stop on the outside of steel beam |
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| CN (1) | CN209162647U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112813805A (en) * | 2021-01-06 | 2021-05-18 | 四川路桥盛通建筑工程有限公司 | Construction method of variable-section thin-wall hollow high pier of stiff framework |
-
2018
- 2018-10-29 CN CN201821760643.6U patent/CN209162647U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112813805A (en) * | 2021-01-06 | 2021-05-18 | 四川路桥盛通建筑工程有限公司 | Construction method of variable-section thin-wall hollow high pier of stiff framework |
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