CN202830947U - Leaking stoppage structure of horn mouth of hanging box cofferdam - Google Patents
Leaking stoppage structure of horn mouth of hanging box cofferdam Download PDFInfo
- Publication number
- CN202830947U CN202830947U CN2012204623169U CN201220462316U CN202830947U CN 202830947 U CN202830947 U CN 202830947U CN 2012204623169 U CN2012204623169 U CN 2012204623169U CN 201220462316 U CN201220462316 U CN 201220462316U CN 202830947 U CN202830947 U CN 202830947U
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- cofferdam
- horn mouth
- hole
- seal
- hanging box
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Abstract
The utility model discloses a leaking stoppage structure of a horn mouth of a hanging box cofferdam. The leaking stoppage structure of the horn mouth of the hanging box cofferdam comprises a cofferdam base plate, wherein the cofferdam base plate is provided with a through hole, a cylindrical supporting component is arranged inside the through hole, and a plurality of sealing pieces used for sealing the gaps between the through hole and the supporting component around the supporting component. According to the leaking stoppage structure of the horn mouth of the hanging box cofferdam, the plurality of sealing pieces are arranged to seal the gaps between the through hole and the supporting component, after concrete is poured and sealed, a construction area inside the cofferdam is enabled to be separated from a water area outside the cofferdam, a good foundation is laid for later period drying operation of a bearing platform after water is pumped inside the cofferdam, and the phenomenon of poor sealing caused by the continuous increase of sealing concrete quantity is prevented. The leaking stoppage structure of the horn mouth of the hanging box cofferdam is suitable for leaking stoppage of the horn mouth of the hanging box cofferdam.
Description
Technical field
The utility model relates to a kind of suspension box-cofferdam horn mouth leak stopping structure.
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.The suspension box-cofferdam, during the profundal zone highrise pile cap that refers to construction as a kind of supplementary structure thing of dash facility.The suspension box-cofferdam is carrying out must carrying out the horn mouth leak stopping before the underwater concrete back cover is built, and the quality of horn mouth leak stopping directly has influence on the success or not of cofferdam back cover.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.
Suspension box-cofferdam horn mouth leak stopping under water conventional construction method is to adopt rectangular cloth bag parcel sand or concrete to be trapped among around the casing, carries out underwater concreting again.The shutoff leakiness appears in conventional cloth bag leak stopping method easily, insecure, when especially the casing gradient is larger, the horn mouth slit is very little on one side, the another side slit is very large, and shutoff is underwater operation, cloth bag splendid attire sand or amount of concrete are too much unsuitable, thereby cause shutoff closely knit not, shutoff is closely knit even if back cover is built front slit, but in the back cover process, continuous increase along with back cover concrete amount, the cloth bag upward pressure increases gradually, for larger position, horn mouth slit, is easy to cloth bag is dropped down from horn mouth top pressure, thereby cause the back cover failure, affect whole follow-up construction.
Now need a kind ofly can solve horn mouth shutoff leakiness, unstable suspension box-cofferdam horn mouth leak stopping structure.
The utility model content
The purpose of this utility model is to provide a kind of suspension box-cofferdam horn mouth leak stopping structure.
The solution that the utility model solves its technical problem is: a kind of suspension box-cofferdam horn mouth leak stopping structure, it comprises the cofferdam base plate, described cofferdam base plate is provided with through hole, columned support component is installed in the described through hole, can be with the gap sealed seal of through hole and support component round several around the described support component.
As further improvement in the technical proposal, described seal comprises curved plate, and described curved plate is provided with the arcuate member that is complementary with the support component radian, and the two ends of curved plate also are provided with link.
As further improvement in the technical proposal, adjacent seal is connected and fixed adjacent link by bolt.
As further improvement in the technical proposal, the quantity of described seal is 4.
The beneficial effects of the utility model are: the utility model is by arranging several seals, the seal is with the clearance seal of through hole and support component, like this, after building bottom concrete, make that construction area and cofferdam external water area are isolated in the cofferdam opens, do operation for the rear cushion cap that draws water in the later stage cofferdam and lay good basis, and prevent that the imagination of the poor sealing that the continuous increase because of back cover concrete amount occurs from occurring.
The utility model is applicable in the bell-mouthed leak stopping in suspension box-cofferdam.
Description of drawings
Below in conjunction with accompanying drawing and example the utility model is further described.
Fig. 1 is the structural representation of the utility model when not closed;
Fig. 2 is the top view of the utility model when not closed;
Structural representation when Fig. 3 is the utility model closure;
Top view when Fig. 4 is the utility model closure.
The specific embodiment
Below in conjunction with accompanying drawing, describe the application of the utility model in the bell-mouthed leak stopping in suspension box-cofferdam in detail.
With reference to Fig. 1～Fig. 4, a kind of suspension box-cofferdam horn mouth leak stopping structure, it comprises cofferdam base plate 1, described cofferdam base plate 1 is provided with through hole, columned support component 2 is installed in the described through hole, this support component is steel casing or auxiliary pile, can be with the gap sealed seal 3 of through hole and support component 2 round several around the described support component 2, and the seal 3 will for the steel structure.Described seal 3 comprises curved plate 30, and described curved plate 30 is provided with the arcuate member 31 that is complementary with the support component radian, and the two ends of curved plate 30 also are provided with link 32.Adjacent seal is connected and fixed adjacent link 32 by bolt 4.The quantity of described seal 3 is 4.
Its method of operating in practice is as follows:
1, seal 3 sizes are determined.Measure support component 2 plan-positions and perpendicularity deviation, calculate cofferdam bottom hole size according to deviate, thereby determine seal 3 sizes, because seal 3 is wanted the in advance slit between logical limit and the steel casing of shutoff, so after bolt 4 was tightened, seal 3 risers and support component 2 outer walls must be closely connected, the curved plate 30 of seal 3 must be pressed in above the cofferdam base plate 1, when especially support component 2 perpendicularity deviations were larger, seal 3 must cover the slit between preformed hole and the steel casing fully.
2, for ease of construction, seal 3 connecting bolts are selected the long screw bolt, and the suspension box-cofferdam is transferred and frontly first connecting bolt 4 is relaxed to peak discharge, and seal 3 diameters are widened as far as possible, and seal 3 tangles support component 2 when preventing that the suspension box-cofferdam from transferring.
3, after design attitude is transferred in the suspension box-cofferdam, arrange the diver to tight a bolt 4 under water, seal 3 diameters dwindle gradually, until cover the slit between through hole and the support component 2 fully.
More than be that preferred embodiments 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 (4)
1. suspension box-cofferdam horn mouth leak stopping structure, it is characterized in that: it comprises cofferdam base plate (1), described cofferdam base plate (1) is provided with through hole, columned support component (2) is installed in the described through hole, and described support component (2) on every side can be with the gap sealed seal (3) of through hole and support component (2) round several.
2. suspension box-cofferdam according to claim 1 horn mouth leak stopping structure, it is characterized in that: described seal (3) comprises curved plate (30), described curved plate (30) is provided with the arcuate member (31) that is complementary with the support component radian, and the two ends of curved plate (30) also are provided with link (32).
3. suspension box-cofferdam according to claim 2 horn mouth leak stopping structure, it is characterized in that: adjacent seal is connected and fixed adjacent link (32) by bolt (4).
4. suspension box-cofferdam according to claim 1 and 2 horn mouth leak stopping structure, it is characterized in that: the quantity of described seal (3) is 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204623169U CN202830947U (en) | 2012-09-11 | 2012-09-11 | Leaking stoppage structure of horn mouth of hanging box cofferdam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204623169U CN202830947U (en) | 2012-09-11 | 2012-09-11 | Leaking stoppage structure of horn mouth of hanging box cofferdam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202830947U true CN202830947U (en) | 2013-03-27 |
Family
ID=47942693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012204623169U Expired - Fee Related CN202830947U (en) | 2012-09-11 | 2012-09-11 | Leaking stoppage structure of horn mouth of hanging box cofferdam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202830947U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109778891A (en) * | 2019-01-03 | 2019-05-21 | 中交二航局第四工程有限公司 | A method of the enhancing back cover bond stress based on offshore steel taper pile basis |
| CN111827322A (en) * | 2020-07-27 | 2020-10-27 | 华东交通大学 | Steel hanging box device for checking and maintaining underwater bearing platform of existing bridge |
-
2012
- 2012-09-11 CN CN2012204623169U patent/CN202830947U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109778891A (en) * | 2019-01-03 | 2019-05-21 | 中交二航局第四工程有限公司 | A method of the enhancing back cover bond stress based on offshore steel taper pile basis |
| CN111827322A (en) * | 2020-07-27 | 2020-10-27 | 华东交通大学 | Steel hanging box device for checking and maintaining underwater bearing platform of existing bridge |
| CN111827322B (en) * | 2020-07-27 | 2022-07-12 | 华东交通大学 | Steel hanging box device for checking and maintaining underwater bearing platform of existing bridge |
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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 |
Granted publication date: 20130327 Termination date: 20170911 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |