CN202323971U - Connection mode of cofferdam and bearing platform - Google Patents
Connection mode of cofferdam and bearing platform Download PDFInfo
- Publication number
- CN202323971U CN202323971U CN2011204841347U CN201120484134U CN202323971U CN 202323971 U CN202323971 U CN 202323971U CN 2011204841347 U CN2011204841347 U CN 2011204841347U CN 201120484134 U CN201120484134 U CN 201120484134U CN 202323971 U CN202323971 U CN 202323971U
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- China
- Prior art keywords
- cofferdam
- cushion cap
- air bag
- bearing platform
- connected mode
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- 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.)
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Abstract
The utility model discloses a connection mode of a cofferdam and a bearing platform, which comprises the cofferdam and the bearing platform and is characterized in that the cofferdam and the bearing platform are in flexible connection. By adopting the technical scheme, the cofferdam and the bearing platform are connected without bolts and achieve flexible connection by aid of friction acted between the cofferdam and the bearing platform or a base after an air bag is aerated, and water stopping is finished together. The cofferdam and the bearing platform are convenient to mount and demount, and due to the fact that the cofferdam and the bearing platform are not in rigid connection, when stormy waves and wave currents strike the cofferdam, vibration cannot be transmitted to the bearing platform or the base due to the fact that the aerated air bag arranged between the cofferdam and the bearing platform or the base has buffer and absorption effects on vibration waves, and therefore the quality of concrete of a later pouring portion can be ensured.
Description
Technical field
The utility model relates to a kind of subaqueous construction field, specifically, relate to a kind of in building water such as bridge, offshore wind farm the connected mode of cofferdam and cushion cap in the building process.
Background technology
In harbour, bridge, tunnel, power plant, offshore wind farm etc. are built; Often need be in water or underwater operation, adopt cofferdam or casing or box etc. that the scope of operation on cushion cap or the base is fenced up usually, drain water wherein; Form a dried environment, be convenient to construction.
Some cofferdam will be connected with cushion cap or other members, as being connected of cushion cap in the bridge construction and steel cofferdam, all is to adopt bolt to connect now for example, adopts the rubber strip sealing, and genus is rigidly connected.During dismounting, need diver's operation under water, because tie point is many and bolt corrosion, operational difficulty, efficient is low.After the dismounting, bolt or the nut stayed on the cushion cap must be done preservative treatment, otherwise can influence the application life of cushion cap; Moreover, being rigidly connected, cofferdam and cushion cap are connected as one; When stormy waves, when wave current impacts the cofferdam; The cofferdam can pass to cushion cap to vibration, causes in the bearing platform construction after-pouring concrete that crack or not firm with other objects bondings takes place when initial set, may cause the after-pouring concrete to be scrapped; Also have, when adopting hydro-expansive rubber bar sealing, compress by bolt, when the cofferdam received the stormy waves impact, in a single day sealing lost efficacy, and was difficult to shutoff under water, threatened constructor's life security.
The utility model content
The technical problem that the utility model will solve is to overcome above-mentioned defective; The connected mode of a kind of cofferdam and cushion cap is provided; It is convenient to make the cofferdam install, dismantle; Sealing is reliable again simultaneously, and can prevent that the vibration in cofferdam from can not pass to cushion cap, thereby guarantees the quality of concrete of after-pouring part on cushion cap.
The technical scheme that the utility model adopted is:
The connected mode of cofferdam and cushion cap comprises cofferdam and cushion cap, it is characterized in that: between said cofferdam and the cushion cap for flexibly connecting.
As a kind of improvement:
The said junction that is meant at cofferdam and cushion cap that flexibly connects is provided with air bag, give airbag aeration after, air bag through with cofferdam, cushion cap between active force realize being connected of cofferdam and cushion cap.
As further improvement:
Said air bag is an annular air-pocket.
The cross section of described annular air-pocket is a rectangle.
As further improving again:
The quantity of said air bag is two.
Said two air bags are positioned at the side of cushion cap, are arranged above and below along cushion cap.
The outside of the inboard of said cofferdam and cushion cap junction or cushion cap and junction, cofferdam is provided with the air bag groove, and said air bag is positioned at the air bag groove.
As further improving again:
The inboard of said cofferdam and cushion cap junction is provided with bolt.
As further improving again:
Said air bag is positioned on the last plane of cushion cap, and the soffit in cofferdam contacts with air bag, give airbag aeration after, air bag is through being connected cofferdam and cushion cap with the active force of the upper surface of the soffit in cofferdam, cushion cap.
Said air bag is a strip shaped air sac.
The upper surface of said cushion cap is provided with the air bag place and is provided with the air bag groove, and air bag is positioned at the air bag groove.
The utility model has the following advantages through adopting technique scheme:
A) be connected without bolt between cofferdam and the cushion cap, rely on the frictional force that acts between cofferdam and cushion cap or the base behind the airbag aeration to realize flexibly connecting, sealing is also accomplished in the lump, installation, convenient disassembly;
B) owing to connect,, guarantee the application life of cushion cap so after removing the cofferdam, do not need again the cushion cap that is threaded the hole to be carried out preservative treatment without bolt;
C) owing to no longer be rigidly connected between cofferdam and the cushion cap; So when stormy waves, when wave current impacts the cofferdam; Owing to be provided with inflatable air bag between cofferdam and cushion cap or the base vibration wave is played buffering, absorption; Can not pass to cushion cap or base to vibration, can guarantee after-pouring part quality of concrete;
D) owing to be provided with air bag between cofferdam and cushion cap or the base; Inflatable air bag has better elastic and flexibility, can be to rough tight contact, and stagnant water effect is good; Can guarantee the long sealing in cofferdam, and can be because of the impact of stormy waves, rock to cause and leak;
E) the auxiliary bolt quantity that connects is few, and is arranged on the inboard, cofferdam, before the dismounting cofferdam, first demounting bolt, carry out preservative treatment after, tear the cofferdam again open.Under dried environment, carry out preservative treatment, simple, convenient.Prior art is after disassembling bolts, and sealing lost efficacy immediately, can only in water, carry out preservative treatment;
F) the technical scheme saving of labor of the utility model, laborsaving, efficient is high, safety, reliable, short construction period, construction cost is low.
Below in conjunction with the accompanying drawing and the specific embodiment the utility model is further specified.
Description of drawings
Accompanying drawing 1 is the structural representation of cofferdam and cushion cap among the utility model embodiment 1;
Accompanying drawing 2 is structural representations of cofferdam and cushion cap among the utility model embodiment 2;
Accompanying drawing 3 is structural representations of cofferdam and cushion cap among the utility model embodiment 3;
Among the figure: the 1-cofferdam; The 2-cushion cap; 3,6-air bag; 4,8-air bag groove; The 5-Valve for aerocyst; The 7-auxiliary bolt.
The specific embodiment
Embodiment 1: as shown in Figure 1, and the connected mode of cofferdam and cushion cap: earlier play several concrete piles marine.The precast concrete cushion cap 2 in the land; In the air bag groove 4 in cofferdam 1, place annular air-pocket 3, or around the facade of cushion cap 2, put annular air-pocket 3, cofferdam 1 is installed on the cushion cap 2; Give air bag 3 inflations through Valve for aerocyst 5; Cofferdam 1 and cushion cap 2 are connected as one, and formation flexibly connects, and can realize the purpose of sealing.With 7 auxiliary connections of 4 auxiliary bolts, auxiliary bolt 7 is not tightened between cofferdam 1 and cushion cap 2, steel cofferdam 1 is formed with cushion cap 2 be rigidly connected.Reserving the stake hole of matching with stake on the cushion cap 2, is sling together with cushion cap 2 and is sleeved on the concrete pile in cofferdam 1, behind cushion cap 2 and the stake sealing; Drain the water in cofferdam 1 and the cushion cap 2, concreting in the cavity of cushion cap 2, treat concrete curing after; Lay down the auxiliary auxiliary bolt 7 that connects earlier; Carry out preservative treatment, give air bag 3 venting again, cofferdam 1 is removed.
Embodiment 2: as shown in Figure 2, and the connected mode of cofferdam and cushion cap: earlier beat several steel pipe piles marine.The precast concrete cushion cap 2 in the land; In two air bag grooves 4 in cofferdam 1, place the annular air-pocket 3 of square-section respectively; Or around the facade of cushion cap 2, put the annular air-pocket of two square-sections; Such double-layer air bag structure has increased the active force of annular air-pocket 3 between cofferdam 1 and cushion cap 2, and has made stagnant water effect more reliable.Cofferdam 1 is being installed on the cushion cap 2, is giving air bag 3 inflations through Valve for aerocyst 5, cofferdam 1 and cushion cap 2 are connected as one, formation flexibly connects.Reserving the stake hole of matching with stake on the cushion cap 2, is sling together with cushion cap 2 and is sleeved on the steel pipe pile in cofferdam 1, behind cushion cap 2 and the stake sealing; Drain the water in cofferdam 1 and the cushion cap 2, concreting in the cavity of cushion cap 2, treat concrete curing after; Give air bag 3 venting, cofferdam 1 is removed.
Embodiment 3: as shown in Figure 3; The connected mode of cofferdam and cushion cap: precast concrete cushion cap 2 in the land; In the air bag groove 4 in cofferdam 1, place annular air-pocket 3, or around the facade of cushion cap 2, put annular air-pocket 3, the binding site in plane and cofferdam 1 is placed the strip shaped air sac of square-section on cushion cap 2; Or the annular air-pocket of O tee section, the weight in cofferdam 1 is pressed on the air bag 6.Two-way airbag structure like this makes stagnant water effect more reliable.Cofferdam 1 is being installed on the cushion cap 2, is giving air bag 3 and air bag 6 inflations through Valve for aerocyst 5, cofferdam 1 and cushion cap 2 are connected as one, formation flexibly connects.Reserve the stake hole of matching with stake on the cushion cap 2, cofferdam 1 is lifted on the concrete pile with cushion cap 2 together, behind cushion cap 2 and the stake sealing; Drain the water in cofferdam 1 and the cushion cap 2, concreting in the cavity of cushion cap 2, treat concrete curing after; Give air bag 3 venting, sling in cofferdam 1.
Cofferdam 1 is with after cushion cap 2 or base are connected, and cofferdam 1 can not produce buoyancy, and the frictional force of air bag 3 between cofferdam 1 and cushion cap 2 is enough to overcome the gravity in cofferdam 1, can keep one all the time and flexibly connect state.
For making air bag 6 be sleeved on around cushion cap 2 or the base facade easily in advance or be placed on cushion cap 2 or the base on the plane, can on the facade of cushion cap 2 or plane, reserve air bag groove 8.
The blowing pressure of cofferdam 1 and 2 air bags 6 of cushion cap is generally at 0.1～0.4MPa.
During venting, on Valve for aerocyst 5, connect earlier, pipeline is caused above the cofferdam 1 after air bag 3 exhausts, seawater can pour into rapidly in the cofferdam 1 with fast plug.Operate very convenient, safety like this.
The utility model also can be advantageously used in base and cofferdam 1 prefabricated under water or that place and install.In the air bag groove 4 in cofferdam 1, place air bag 3 in advance, connect the gas tube that can lead to the water surface on the Valve for aerocyst 5, cofferdam 1 is lifted on the base, give air bag 3 inflations, cofferdam 1 and base are connected as one.
Claims (10)
1. the connected mode of cofferdam and cushion cap comprises cofferdam (1) and cushion cap (2), it is characterized in that: between said cofferdam (1) and the cushion cap (2) for flexibly connecting.
2. the connected mode of cofferdam according to claim 1 and cushion cap; It is characterized in that; The said junction that is meant (1) and cushion cap (2) in the cofferdam that flexibly connects is provided with air bag (3); After giving air bag (3) inflation, air bag (3) through with cofferdam (1), cushion cap (2) between active force realize being connected of cofferdam (1) and cushion cap (2).
3. the connected mode of cofferdam according to claim 2 and cushion cap is characterized in that, said air bag (3) is an annular air-pocket.
4. the connected mode of cofferdam according to claim 3 and cushion cap is characterized in that, the quantity of said air bag (3) is two.
5. the connected mode of cofferdam according to claim 4 and cushion cap is characterized in that, said two air bags are positioned at the side of cushion cap (2), is arranged above and below along cushion cap (2).
6. the connected mode of cofferdam according to claim 5 and cushion cap is characterized in that, said cofferdam (1) is provided with air bag groove (4) with the inboard of cushion cap (2) junction or the outside of cushion cap (2) and junction, cofferdam (1), and said air bag (3) is positioned at air bag groove (4).
7. the connected mode of cofferdam according to claim 1 and cushion cap is characterized in that, said cofferdam (1) is provided with auxiliary bolt (7) with the inboard of cushion cap (2) junction.
8. the connected mode of cofferdam according to claim 1 and cushion cap is characterized in that, the last plane of said cushion cap (2) is provided with air bag (6), and the soffit of said cofferdam (2) contacts with air bag (6).
9. the connected mode of cofferdam according to claim 8 and cushion cap is characterized in that, said air bag (6) is strip shaped air sac or annular air-pocket.
10. the connected mode of cofferdam according to claim 9 and cushion cap is characterized in that, the upper surface of said cushion cap (2) is provided with air bag (6) and locates to be provided with air bag groove (8), and air bag (6) is positioned at air bag groove (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204841347U CN202323971U (en) | 2011-11-18 | 2011-11-18 | Connection mode of cofferdam and bearing platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204841347U CN202323971U (en) | 2011-11-18 | 2011-11-18 | Connection mode of cofferdam and bearing platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202323971U true CN202323971U (en) | 2012-07-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204841347U Expired - Fee Related CN202323971U (en) | 2011-11-18 | 2011-11-18 | Connection mode of cofferdam and bearing platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202323971U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102518146A (en) * | 2011-11-18 | 2012-06-27 | 钟爱民 | Connecting way of cofferdam and bearing platform |
| CN107604933A (en) * | 2017-10-31 | 2018-01-19 | 中铁十六局集团第三工程有限公司 | One kind reclines formula steel boxed cofferdam |
-
2011
- 2011-11-18 CN CN2011204841347U patent/CN202323971U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102518146A (en) * | 2011-11-18 | 2012-06-27 | 钟爱民 | Connecting way of cofferdam and bearing platform |
| CN107604933A (en) * | 2017-10-31 | 2018-01-19 | 中铁十六局集团第三工程有限公司 | One kind reclines formula steel boxed cofferdam |
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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: 20120711 Termination date: 20141118 |
|
| EXPY | Termination of patent right or utility model |