CN202830948U - Descent guide device of cofferdam - Google Patents
Descent guide device of cofferdam Download PDFInfo
- Publication number
- CN202830948U CN202830948U CN201220462346XU CN201220462346U CN202830948U CN 202830948 U CN202830948 U CN 202830948U CN 201220462346X U CN201220462346X U CN 201220462346XU CN 201220462346 U CN201220462346 U CN 201220462346U CN 202830948 U CN202830948 U CN 202830948U
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- CN
- China
- Prior art keywords
- cofferdam
- descent
- base plate
- guide device
- hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a descent guide device of a cofferdam. The descent guide device for the cofferdam comprises a cofferdam base plate. A through hole is formed in the cofferdam base plate. A plurality of rotary guide mechanisms are evenly distributed around the through hole. According to the rotary guide mechanisms, in the process of the cofferdam descent, after the cofferdam contacts a steel pile casing, sliding friction force between the cofferdam and the steel pile casing in the prior art is converted into rolling friction force, and therefore frictional resistance in the process of the cofferdam descent is reduced greatly, the cofferdam can be descended more smoothly and more safely and the phenomenon of deformation of the cofferdam or the steel pile casing caused by extrusion is avoided. The descent guide device for the cofferdam is favorable for the descent of the cofferdam.
Description
Technical field
The utility model relates to a kind of guiding device of transferring of cofferdam.
Background technology
Along with the Large scale construction of highway in China, railway through street net, stride in a large number river, river, sea-bridge beam and build one after another, and these grand bridges often need to be built huge pier footing in deep water.Bridge highrise pile cap construction under the deepwater environment, modal job practices is exactly the suspension box-cofferdam method.Transfer after assembly unit is finished in the process because build weight is all larger the suspension box-cofferdam, easily is subject to the impacts such as stormy waves, passing ships and current, causes off-design position, suspension box-cofferdam larger, even hold out against the steel casing, causes the cofferdam to transfer smoothly and put in place.Horn mouth refers to the slit between the preformed hole and steel casing or auxiliary pile outer wall on the base plate of cofferdam; Back cover, after referring to the suspension box-cofferdam and arriving design attitude, must be at the certain thickness concrete of cofferdam bottom slab concreting, make that working water level completely cuts off outside cushion cap and the cofferdam, do operation for the rear cushion cap that draws water in the later stage cofferdam and prepare.
The suspension box-cofferdam transfers that traditional limit method is at the position of distance steel casing certain distance welding steel cushion block in the process, and the steel cushion block is as limited block, and when the suspension box-cofferdam off normal was larger, the steel cushion block held out against the steel casing, stops the suspension box-cofferdam to produce larger off normal.Because suspension box-cofferdam build weight is all larger, in case the steel cushion block holds out against the steel casing, will produce very large frictional resistance, the cofferdam is transferred be obstructed, even with cofferdam or the crimp of steel casing.
The utility model content
The purpose of this utility model is to provide a kind of guiding device of transferring of cofferdam.
The solution that the utility model solves its technical problem is: a kind of cofferdam transfer guiding device, it comprises the cofferdam base plate, described cofferdam base plate is provided with through hole, has been evenly arranged several rolling guiding mechanisms around the described through hole.
As further improvement in the technical proposal, described rolling guiding mechanism comprises base, and described base is welded on the base plate of cofferdam, and at least one directive wheel is installed on the base.
As further improvement in the technical proposal, the quantity of described rolling guiding mechanism is 4.
The beneficial effects of the utility model are: the utility model passes through rolling guiding mechanism, so when transferring the cofferdam, after cofferdam and steel casing come in contact, with in the prior art between the two force of sliding friction be converted into force of rolling friction, greatly reduced the frictional resistance that is subject to when transfer in the cofferdam, more smooth safer the transferring in cofferdam put in place, and prevent the phenomenon that cofferdam or steel casing be out of shape because of extruding and occur.
The utility model is practically applicable in the transferring of cofferdam.
Description of drawings
Below in conjunction with accompanying drawing and example the utility model is further described.
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the schematic diagram of middle rolling guiding mechanism of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing, describe application of the present utility model in detail.
With reference to Fig. 1～Fig. 2, a kind of cofferdam transfer guiding device, it comprises cofferdam base plate 2, described cofferdam base plate 2 is provided with through hole, has been evenly arranged several rolling guiding mechanisms 1 around the described through hole.
By rolling guiding mechanism 1, so when transferring the cofferdam, after cofferdam and steel casing 3 come in contact, with in the prior art between the two force of sliding friction be converted into force of rolling friction, greatly reduced the frictional resistance that is subject to when transfer in the cofferdam, more smooth safer the transferring in cofferdam put in place, and prevent the phenomenon that cofferdam or steel casing 3 be out of shape because of extruding and occur.
Be further used as preferred embodiment, described rolling guiding mechanism 1 comprises base 10, and described base 10 is welded on the cofferdam base plate 2, and at least one directive wheel 11 is installed on the base 10.
Be further used as preferred embodiment, the quantity of described rolling guiding mechanism 1 is 4.
Before transferred the suspension box-cofferdam, distance steel casing 3 a distance welding roll guiding mechanisms 1 on the keel of cofferdam base plate 2 welded guide roller 11 in selected position in advance.Transfer in the process in the cofferdam, because impacts such as stormy waves, passing ships and current, some off normals can occur in the cofferdam, and after steel casing 3 was arrived on guide roller 11 tops, guide roller 11 rolled, and transfer smoothly in auxiliary cofferdam.
More than be that better embodiment of the present utility model is specified, but the invention is not limited to described embodiment, those of ordinary skill in the art also can make all equivalent modifications or replacement under the prerequisite of the utility model spirit, the modification that these are equal to or replacement all are included in the application's claim limited range.
Claims (3)
- A cofferdam transfer guiding device, it is characterized in that: it comprises cofferdam base plate (2), described cofferdam base plate (2) is provided with through hole, has been evenly arranged several rolling guiding mechanisms (1) around the described through hole.
- 2. cofferdam according to claim 1 transfers guiding device, it is characterized in that: described rolling guiding mechanism (1) comprises base (10), described base (10) is welded on the cofferdam base plate (2), and at least one directive wheel (11) is installed on the base (10).
- Cofferdam according to claim 1 transfer guiding device, it is characterized in that: the quantity of described rolling guiding mechanism (1) is 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220462346XU CN202830948U (en) | 2012-09-11 | 2012-09-11 | Descent guide device of cofferdam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220462346XU CN202830948U (en) | 2012-09-11 | 2012-09-11 | Descent guide device of cofferdam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202830948U true CN202830948U (en) | 2013-03-27 |
Family
ID=47942694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220462346XU Expired - Fee Related CN202830948U (en) | 2012-09-11 | 2012-09-11 | Descent guide device of cofferdam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202830948U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110409477A (en) * | 2019-07-12 | 2019-11-05 | 中铁大桥勘测设计院集团有限公司 | A kind of steel lifted trunk anti-surge interior support system and its construction method |
-
2012
- 2012-09-11 CN CN201220462346XU patent/CN202830948U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110409477A (en) * | 2019-07-12 | 2019-11-05 | 中铁大桥勘测设计院集团有限公司 | A kind of steel lifted trunk anti-surge interior support system and its construction method |
| CN110409477B (en) * | 2019-07-12 | 2021-05-04 | 中铁大桥勘测设计院集团有限公司 | Steel suspension box anti-surge internal support system and construction method thereof |
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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: 20130327 Termination date: 20170911 |