CN110396934A - A kind of wet joint concrete casting system of cast-in-situ box girder and method - Google Patents
A kind of wet joint concrete casting system of cast-in-situ box girder and method Download PDFInfo
- Publication number
- CN110396934A CN110396934A CN201910689251.8A CN201910689251A CN110396934A CN 110396934 A CN110396934 A CN 110396934A CN 201910689251 A CN201910689251 A CN 201910689251A CN 110396934 A CN110396934 A CN 110396934A
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- Prior art keywords
- chute
- longitudinal
- cast
- bridge
- wet
- Prior art date
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- 238000005266 casting Methods 0.000 title claims abstract description 31
- 238000011065 in-situ storage Methods 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000010276 construction Methods 0.000 claims abstract description 7
- 230000007423 decrease Effects 0.000 claims description 2
- 230000003247 decreasing effect Effects 0.000 abstract description 2
- 238000005086 pumping Methods 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000006073 displacement reaction Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The present invention relates to field of bridge construction, the problem of being easy plugging when aiming to solve the problem that the wet seam of existing bridge using pumping, there is provided a kind of wet joint concrete casting system of cast-in-situ box girder and method, the wet joint concrete casting system of cast-in-situ box girder includes the chute bracket and the multiple lateral chutes for respectively corresponding each wet seam of bridge that two support brackets, lifting rope, longitudinal chute, multiple extending directions along chute are spaced apart.Wherein, two support brackets are arranged along the longitudinal gap of bridge；Lifting rope is connected between two support brackets；Longitudinal chute is along the longitudinally disposed of bridge and is suspended to below lifting rope；Longitudinal chute is the partial tube in opening up U-shaped section；And the height of longitudinal chute is gradually decreased along its conveying direction；Chute bracket supports longitudinal chute；Lateral chute is connected to longitudinal chute., can be to avoid plugging problem the beneficial effects of the invention are as follows conveniently realizing wet joint concrete to pour, and it is convenient for the performance of observation concrete.
Description
Technical field
The present invention relates to field of bridge construction, in particular to a kind of wet joint concrete casting system of cast-in-situ box girder
And method.
Background technique
The splicing or concrete joint that the wet seam of bridge generally uses, landform is more complicated, the higher area of bridge pier
Be not available under bridge and lift, only using wet joint template is installed after transport to beam body position integral hoisting after platform, plate is wire-tie
Pour the processes such as wet joint concrete.Suspender is by Traffic interruption, institute when prefabricated subsection being all hung in aerial due to Bridge Erector
To pour, wet seam can only be pumped by day and ground pump pours.Using in ground pump casting process since the intensity of wet joint concrete is equal
Higher, strong concrete pours that time, Properties Control are bad will to cause plugging, need all to check pump line after plugging,
After-pouring is removed, may cause vehicle concrete in this way cannot use.Due to the shadow of lifting appliance for bridge girder erection machine when being poured using day pump
Loud and Bridge Erector headroom the position for influencing the arrival of this pump is limited.
Summary of the invention
The present invention is intended to provide a kind of wet joint concrete casting system of cast-in-situ box girder, to solve the wet seam of existing bridge
The problem of being easy plugging when using pumping.
The present invention also provides a kind of wet seams of cast-in-situ box girder based on the wet joint concrete casting system of above-mentioned cast-in-situ box girder
Concreting method.
The embodiment of the present invention is achieved in that
A kind of wet joint concrete casting system of cast-in-situ box girder comprising:
Two support brackets, the two are arranged along the longitudinal gap of bridge；
Lifting rope is connected between two support brackets, and vacantly encloses above bridge；
Longitudinal chute along the longitudinally disposed of the bridge and is suspended to below the lifting rope；The longitudinal direction chute is opening
The partial tube in U-shaped section upward wet connects concrete for conveying along longitudinal direction；And the height of longitudinal chute is along its conveying
Direction gradually decreases；
The chute bracket that multiple extending directions along chute are spaced apart is set to longitudinal described in bridge floor and vertical supporting
Chute；And
Multiple lateral chutes of each wet seam of bridge are respectively corresponded, transverse direction chute connection longitudinal chute is used for
The wet concrete that connects of lateral transfer is to wet seam；The transverse direction chute is the partial tube in opening up U-shaped section.
The wet joint concrete casting system of cast-in-situ box girder in this programme is in use, concrete passes through U-shaped longitudinal chute
Along the longitudinally fed of bridge, it is delivered to wet seam using lateral chute, wet joint concrete is conveniently realized and pours, can keep away
The problem of exempting from day pump Plugging Accident of Pump Concrete, and convenient for the performance of observation concrete.
In one embodiment, the PVE pipe that longitudinal chute is diameter 600mm along longitudal section cut half after shape；
The PVE pipe that the transverse direction chute is diameter 3000mm along longitudal section cut half after shape.Lateral chute and longitudinal chute pass through general
Logical PVE pipe cuts half acquisition, and the processing is simple and practical.
In one embodiment, the support bracket includes two vertical bars supported respectively by two sides hound and company
The crossbeam being connected between two vertical bars, the length of the crossbeam are provided with the interconnecting piece for connecting the lifting rope to middle position.
In one embodiment, the chute bracket includes two vertical bars being spaced and the water being connected between two vertical bars
Flat cross bar, and the upper end of vertical bar is extend out on horizontal cross bar, forms U-shaped socket；The longitudinal direction chute is supported in described
On horizontal cross bar, and it is located between the extension of two vertical bars.Chute pedestal upper end forms U-shaped socket, in vertical supporting
Except the function of longitudinal chute, also there is the problem of lateral displacement for limiting longitudinal chute.Such as in turning, the stream of concrete
Dynamic to have the tendency that longitudinal chute is pushed transversely to be subjected to displacement, the section of stretching out of the vertical bar of the stretching horizontal cross bar of setting can be controlled
The trend is made, longitudinal chute transverse direction over-large displacement is avoided.
In one embodiment, hound is respectively set in the two sides of the vertical bar；The upper end of the hound is supported in
The side of vertical bar is simultaneously towards extending obliquely downward to making its lower end be supported in bridge floor.Hound is conducive to the support to vertical bar, and it is steady to increase it
It is qualitative.
In one embodiment, longitudinal chute along lifting rope length to multiple suspender members of distribution by being hung on
The lifting rope；The suspender member be inverted V-arrangement bar construction, tip is connected to the lifting rope, both ends be connected to it is U-shaped
The two sides of longitudinal chute in section.The connection that V-arrangement bar construction can be appropriately carried out longitudinal chute and lifting rope is set very much, it is ensured that
The shape that longitudinal chute keeps its U-shaped.
There are two the longitudinal direction chute is total, and it is wide to two sides to be distributed in bridge respectively；Accordingly, it is used to support longitudinal chute
The support bracket have two groups totally four, there are two the lifting ropes for suspending longitudinal chute in midair；It is used to support slipping for longitudinal chute
Slot bracket has two rows；The transverse direction chute is connected between two longitudinal chutes.Two longitudinal chutes are set and increase concrete
In longitudinal transfer efficiency.
This programme also provides a kind of wet joint concrete casting method of cast-in-situ box girder, connects based on cast-in-situ box girder above-mentioned is wet
Stitch concrete casting system；
The casting method includes: to be implanted into anchor point in beam face, and support bracket is fixed on beam face；Two support brackets it
Between connect lifting rope, keep lifting rope exceptionally straight；
Chute bracket is set, then will cut the longitudinal chute partly made and be mounted on chute bracket and hang in lifting rope
On；Lateral chute is arranged along each wet seam and is connected to longitudinal chute；Then coagulation is carried out by longitudinal chute and lateral chute
Soil conveying and pour.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the main view of the wet joint concrete casting system of cast-in-situ box girder in the embodiment of the present invention；
Fig. 2 is the top view of the wet joint concrete casting system of cast-in-situ box girder in the embodiment of the present invention；
Fig. 3 is the structural schematic diagram of longitudinal chute in the embodiment of the present invention；
Fig. 4 is the structural schematic diagram of the lateral chute in the embodiment of the present invention；
Fig. 5 is the structural schematic diagram of the support bracket in the embodiment of the present invention；
Fig. 6 is another multi-angled view of the support bracket in the embodiment of the present invention；
Fig. 7 is the structural schematic diagram of the chute bracket in the embodiment of the present invention；
Fig. 8 is another multi-angled view of the chute bracket in the embodiment of the present invention；
Fig. 9 is the topology view that longitudinal chute is hung on lifting rope by suspender member.
Icon: 3- support bracket；1- lifting rope；The longitudinal direction 2- chute；6- chute bracket；5- transverse direction chute；11- hound；12-
Vertical bar；13- crossbeam；14- interconnecting piece；22- vertical bar；23- horizontal cross bar；24- socket；21- hound；4- suspender member.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiment of the present invention provided in the accompanying drawings is not intended to limit below claimed
The scope of the present invention, but be merely representative of selected embodiment of the invention.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the present invention, it should be noted that if occur term " center ", "upper", "lower", "left", "right",
The orientation or positional relationship of the instructions such as "vertical", "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings,
Either the invention product using when the orientation or positional relationship usually put, be merely for convenience of the description present invention and simplification retouched
It states, rather than the device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation,
Therefore it is not considered as limiting the invention.If only being used in addition, occurring term " first ", " second " etc. in description of the invention
It is described in distinguishing, is not understood to indicate or imply relative importance.
If being not offered as requiring component absolute in addition, occurring the terms such as term "horizontal", "vertical" in description of the invention
Horizontal or pendency, but can be slightly tilted.If "horizontal" only refers to that its direction is more horizontal with respect to for "vertical", not
It is to indicate that the structure is had to fully horizontally, but can be slightly tilted.
In the description of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, if there is term
" setting ", " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, be also possible to detachably connect
It connects, or is integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, intermediate matchmaker can also be passed through
Jie is indirectly connected, and can be the connection inside two elements.It for the ordinary skill in the art, can be with concrete condition
Understand the concrete meaning of above-mentioned term in the present invention.
Embodiment
Referring to Fig. 1 and Fig. 2, the present embodiment provides a kind of wet joint concrete casting systems of cast-in-situ box girder comprising two
The chute bracket 6 and respectively correspond that support bracket 3, lifting rope 1, longitudinal chute 2, multiple extending directions along chute are spaced apart
Multiple lateral chutes 5 of each wet seam of bridge.Wherein, two support brackets 3 are arranged along the longitudinal gap of bridge；Lifting rope 1 connects
Between two support brackets 3, and vacantly enclose above bridge；Longitudinal chute 2 is hung along the longitudinally disposed of bridge and being suspended to
1 lower section of rope；Longitudinal chute 2 is the partial tube in opening up U-shaped section, wet connects concrete for conveying along longitudinal direction；And it is vertical
It is gradually decreased to the height of chute 2 along its conveying direction；Chute bracket 6 is set to bridge floor and vertical supporting longitudinal direction chute 2；Laterally
Chute 5 is connected to longitudinal chute 2, for the wet concrete that connects of lateral transfer to wet seam；Lateral chute 5 is opening up U-shaped section
The partial tube in face.The specific structure of longitudinal chute 2 and lateral chute 5 is see in Fig. 3 and Fig. 4.
The wet joint concrete casting system of cast-in-situ box girder in this programme is in use, concrete passes through U-shaped longitudinal chute 2
Along the longitudinally fed of bridge, it is delivered to wet seam using lateral chute 5, wet joint concrete is conveniently realized and pours, it can be with
Avoid the problem that day pumps Plugging Accident of Pump Concrete, and convenient for the performance of observation concrete.
In the present embodiment, be optionally arranged longitudinal chute 2 altogether there are two, and it is wide to two sides to be distributed in bridge respectively；It is corresponding
Ground, the support bracket 3 for being used to support longitudinal chute 2 have two groups totally four, there are two the lifting ropes 1 for suspending longitudinal chute 2 in midair；With
There are two rows in the chute bracket 6 of the longitudinal chute 2 of support；Lateral chute 5 is connected between two longitudinal chutes 2.Setting two vertical
Concrete is increased in longitudinal transfer efficiency to chute 2.
Referring to Fig. 3 and Fig. 4, in one embodiment, the PVE pipe that longitudinal chute 2 is diameter 600mm cuts half along longitudal section
Shape afterwards；The PVE pipe that lateral chute 5 is diameter 3000mm along longitudal section cut half after shape.Lateral chute 5 and longitudinal chute
2 cut half acquisition by common PVE pipe, and the processing is simple and practical.Longitudinal chute 2 and lateral chute mode of communicating can be in longitudinal direction
The side opening of chute 2, which is realized, to be connected and is connected to.
Referring to figs. 5 and 6, in one embodiment, support bracket 3 is supported by two sides hound 11 respectively including two
Vertical bar 12 and the crossbeam 13 that is connected between two vertical bars 12, the length of crossbeam 13 be provided with to middle position for connecting lifting rope
1 interconnecting piece 14.
Referring to figs. 7 and 8, in one embodiment, chute bracket 6 includes the vertical bar 22 at two intervals and is connected to two
Horizontal cross bar 23 between vertical bar 22, and the upper end of vertical bar 22 is extend out on horizontal cross bar 23, forms U-shaped socket 24；
Longitudinal chute 2 is supported on horizontal cross bar 23, and is located between the extension of two vertical bars 22.6 upper end of chute bracket forms U-shaped
Socket 24 also there is the problem of lateral displacement for limiting longitudinal chute 2 except the function of vertical supporting longitudinal direction chute 2.
Such as at bridge turning, the flowing of concrete will have the tendency that longitudinal chute 2 is pushed transversely to be subjected to displacement, the stretching of setting
The section of stretching out of the vertical bar 22 of horizontal cross bar 23 can control the trend, avoid the lateral over-large displacement of longitudinal chute 2.Optionally, it erects
Hound 21 is respectively set in the two sides of bar 22；The upper end of hound 21 is supported in the side of vertical bar 22 and towards extending obliquely downward to it is made
Lower end is supported in bridge floor.Hound 21 is conducive to the support to vertical bar 22, increases its stability.
Referring to Fig. 1 and Fig. 9, in one embodiment, longitudinal chute 2 passes through along the long multiple hangings to distribution of lifting rope 1
Part 4 is hung on lifting rope 1；Suspender member 4 be inverted V-arrangement bar construction, tip is connected to lifting rope 1, both ends be connected to it is U-shaped
The two sides of longitudinal chute 2 in section.The connection that V-arrangement bar construction can be appropriately carried out longitudinal chute 2 and lifting rope 1 is set very much,
Ensure that longitudinal chute 2 keeps its U-shaped shape.
The present embodiment also provides a kind of wet joint concrete casting method of cast-in-situ box girder, wet based on cast-in-situ box girder above-mentioned
Joint concrete casting system；The casting method includes: to be implanted into anchor point in beam face, and support bracket is fixed on beam face；In
Lifting rope is connected between two support brackets, keeps lifting rope exceptionally straight；Chute bracket is set, then will cut the longitudinal chute partly made and install
On chute bracket and hang on lifting rope；Lateral chute is arranged along each wet seam and is connected to longitudinal chute；Then by vertical
The conveying of concrete is carried out to chute and lateral chute and is poured.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of wet joint concrete casting system of cast-in-situ box girder characterized by comprising
Two support brackets, the two are arranged along the longitudinal gap of bridge；
Lifting rope is connected between two support brackets, and vacantly encloses above bridge；
Longitudinal chute along the longitudinally disposed of the bridge and is suspended to below the lifting rope；The longitudinal direction chute is opening up
U-shaped section partial tube, wet connect concrete for conveying along longitudinal direction；And the height of longitudinal chute is along its conveying direction
It gradually decreases；
The chute bracket that multiple extending directions along chute are spaced apart is set to described in bridge floor and vertical supporting and longitudinally slips
Slot；And
Respectively correspond multiple lateral chutes of each wet seam of bridge, transverse direction chute connection longitudinal chute, for laterally
The wet concrete that connects is conveyed to wet seam；The transverse direction chute is the partial tube in opening up U-shaped section.
2. the wet joint concrete casting system of cast-in-situ box girder according to claim 1, it is characterised in that:
The PVE pipe that the longitudinal direction chute is diameter 600mm along longitudal section cut half after shape；
The PVE pipe that the transverse direction chute is diameter 3000mm along longitudal section cut half after shape.
3. the wet joint concrete casting system of cast-in-situ box girder according to claim 1, it is characterised in that:
The support bracket includes two respectively by vertical bar that two sides hound supports and the crossbeam being connected between two vertical bars,
The length of the crossbeam is provided with the interconnecting piece for connecting the lifting rope to middle position.
4. the wet joint concrete casting system of cast-in-situ box girder according to claim 1, it is characterised in that:
The chute bracket includes two vertical bars being spaced and the horizontal cross bar being connected between two vertical bars, and the upper end of vertical bar is stretched
Out on horizontal cross bar, U-shaped socket is formed；
The longitudinal direction chute is supported on the horizontal cross bar, and is located between the extension of two vertical bars.
5. the wet joint concrete casting system of cast-in-situ box girder according to claim 4, it is characterised in that:
Hound is respectively set in the two sides of the vertical bar；The upper end of the hound is supported in the side of vertical bar and court extends obliquely downward
To making its lower end be supported in bridge floor.
6. the wet joint concrete casting system of cast-in-situ box girder according to claim 1, it is characterised in that:
The longitudinal direction chute is by being hung on the lifting rope to multiple suspender members of distribution along lifting rope length；
The suspender member is inverted V-arrangement bar construction, and tip is connected to the lifting rope, both ends are connected to U-shaped section
Longitudinal chute two sides.
7. the wet joint concrete casting system of cast-in-situ box girder according to claim 1, it is characterised in that:
There are two the longitudinal direction chute is total, and it is wide to two sides to be distributed in bridge respectively；Accordingly, it is used to support the institute of longitudinal chute
Stating support bracket has two groups totally four, there are two the lifting ropes for suspending longitudinal chute in midair；It is used to support the chute branch of longitudinal chute
Frame has two rows；
The transverse direction chute is connected between two longitudinal chutes.
8. a kind of wet joint concrete casting method of cast-in-situ box girder, which is characterized in that the casting method is based on claim 1-7
Described in any item wet joint concrete casting systems of cast-in-situ box girder；
The casting method includes: to be implanted into anchor point in beam face, and support bracket is fixed on beam face；Connect between two support brackets
Lifting rope is connect, keeps lifting rope exceptionally straight；
Chute bracket is set, then will cut the longitudinal chute partly made and be mounted on chute bracket and hang on lifting rope；It will
Lateral chute is arranged along each wet seam and is connected to longitudinal chute；Then the defeated of concrete is carried out by longitudinal chute and lateral chute
It send and pours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910689251.8A CN110396934A (en) | 2019-07-29 | 2019-07-29 | A kind of wet joint concrete casting system of cast-in-situ box girder and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910689251.8A CN110396934A (en) | 2019-07-29 | 2019-07-29 | A kind of wet joint concrete casting system of cast-in-situ box girder and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110396934A true CN110396934A (en) | 2019-11-01 |
Family
ID=68326357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910689251.8A Pending CN110396934A (en) | 2019-07-29 | 2019-07-29 | A kind of wet joint concrete casting system of cast-in-situ box girder and method |
Country Status (1)
| Country | Link |
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| CN (1) | CN110396934A (en) |
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| CN202176114U (en) * | 2011-08-15 | 2012-03-28 | 中建七局第三建筑有限公司 | Fast and light type concrete chute |
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| CN104032960A (en) * | 2014-06-20 | 2014-09-10 | 中建五局第三建设有限公司 | Suspension type concrete placement chute device |
| CN105442609A (en) * | 2015-11-20 | 2016-03-30 | 山东送变电工程公司 | Self-supporting chute device for pouring of foundation concrete |
| CN205400078U (en) * | 2016-03-16 | 2016-07-27 | 中冶建工集团有限公司 | Concrete placement activity chute |
| CN206299128U (en) * | 2016-12-14 | 2017-07-04 | 北京建工四建工程建设有限公司 | A kind of casting system for avoiding concrete disintegration |
| CN108019043A (en) * | 2017-12-11 | 2018-05-11 | 中国冶集团有限公司 | The device of scope is poured for expanding ground pump material distributing machine |
| CN210597039U (en) * | 2019-07-29 | 2020-05-22 | 中铁八局集团昆明铁路建设有限公司 | Cast-in-place box girder wet joint concrete placement system |
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2019
- 2019-07-29 CN CN201910689251.8A patent/CN110396934A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102400556A (en) * | 2010-09-15 | 2012-04-04 | 吉宏玲 | Concrete pouring and distributing chute |
| CN202176114U (en) * | 2011-08-15 | 2012-03-28 | 中建七局第三建筑有限公司 | Fast and light type concrete chute |
| CN102888993A (en) * | 2012-09-17 | 2013-01-23 | 中国华冶科工集团有限公司 | Rotating chute |
| CN104032960A (en) * | 2014-06-20 | 2014-09-10 | 中建五局第三建设有限公司 | Suspension type concrete placement chute device |
| CN105442609A (en) * | 2015-11-20 | 2016-03-30 | 山东送变电工程公司 | Self-supporting chute device for pouring of foundation concrete |
| CN205400078U (en) * | 2016-03-16 | 2016-07-27 | 中冶建工集团有限公司 | Concrete placement activity chute |
| CN206299128U (en) * | 2016-12-14 | 2017-07-04 | 北京建工四建工程建设有限公司 | A kind of casting system for avoiding concrete disintegration |
| CN108019043A (en) * | 2017-12-11 | 2018-05-11 | 中国冶集团有限公司 | The device of scope is poured for expanding ground pump material distributing machine |
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