CN202787292U - Offshore precast concrete caisson or cylinder-type wind power foundation stream guidance soil borrowing immersion device - Google Patents
Offshore precast concrete caisson or cylinder-type wind power foundation stream guidance soil borrowing immersion device Download PDFInfo
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- CN202787292U CN202787292U CN 201220383136 CN201220383136U CN202787292U CN 202787292 U CN202787292 U CN 202787292U CN 201220383136 CN201220383136 CN 201220383136 CN 201220383136 U CN201220383136 U CN 201220383136U CN 202787292 U CN202787292 U CN 202787292U
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Abstract
The utility model relates to an offshore precast concrete caisson or a cylinder-type wind power foundation stream guidance soil borrowing immersion device which aims at reducing resistance of soil mass to a foundation structure and enables the foundation structure to sink more conveniently and rapidly. The offshore precast concrete caisson or the cylinder-type wind power foundation stream guidance soil borrowing immersion device is provided with a concrete foundation structure and is characterized in that a bottomless steel box body is arranged at the bottom of the concrete foundation structure. The width of the steel box body is larger than the wall thickness of the concrete foundation structure. A spring web is arranged at the bottom of the steel box body. High-pressure water pipes are arranged inside the steel box body along the horizontal direction of the steel box body. A plurality of sets of downward high-pressure water outlet holes are arranged on the high-pressure water pipes at intervals. The high-pressure water pipes are connected with a water inlet pipe which is embedded in the concrete foundation structure. The offshore precast concrete caisson or the cylinder-type wind power foundation stream guidance soil borrowing immersion device is suitable for submergence and embedment of the precast concrete foundation structure in a hydraulic structure and a marine structure.
Description
Technical field
The utility model relates to a kind of marine precast concrete caisson or the cartridge type wind-powered electricity generation basis water conservancy diversion sinking device that fetches earth.The sinking that is applicable to precast concrete foundation structure in water conservancy project and the ocean structure is buried, and comprises the structure such as caisson, concrete cylindrical basis under water.
Background technology
The offshore wind farm unit often adopts caisson, concrete cylindrical structure basis, and it is difficult point in the construction that the sinking of this class precast concrete is buried always.The sinking of precast concrete foundation structure under water will overcome the end resistance of side friction power and the bottom soil body, and this class formation end resistance and side friction power are larger, and structure is difficult to only rely on deadweight or the sinking of breaking ground of other external force.Therefore need a kind of straightforward procedure when structure is sunk, to destroy the soil body of concrete foundation structure inside and outside wall and bottom, and with its taking-up, thereby eliminate or reduce soil body side friction power and end resistance, so that the concrete foundation structure then can rely on self gravitation or other external force (negative pressure) to realize.
Summary of the invention
The technical problems to be solved in the utility model is: for the problem of above-mentioned existence, the water conservancy diversion sinking device that fetches earth in the marine precast concrete caisson of a kind of simple structure, easy construction or cartridge type wind-powered electricity generation basis is provided, destroy the soil body of concrete foundation structural perimeter, to reduce the soil body to the resistance of foundation structure, it is more convenient that foundation structure is sunk.
The technical scheme that the utility model adopts is: a kind of marine precast concrete caisson or the cartridge type wind-powered electricity generation basis water conservancy diversion sinking device that fetches earth, has the concrete foundation structure, it is characterized in that: along the concrete foundation structural base bottomless steel casing is installed, this steel casing width is greater than concrete foundation structure wall thickness, described steel bottom half is equipped with spring net, the steel box house, along 2 ~ 3 high-pressure water pipe of steel casing horizontal arrangement, some groups of downward high pressure weep holes are arranged at the interval on the high-pressure water pipe, and described high-pressure water pipe connects the water inlet pipe that is embedded in advance in the concrete foundation structure.
Exceed the concrete foundation structure division at steel casing top and offer the mud hole.
Described high-pressure water pipe links to each other through extensible link with water inlet pipe.
Described spring net is side by side continuous forming of spring.
Described high pressure weep hole arrangement pitch is 40 ~ 80mm, aperture 4 ~ 8mm.
The beneficial effects of the utility model are: the water conservancy diversion of the present utility model sinking apparatus structure that fetches earth is simple, easy to make, when sinking, the concrete foundation structure can effectively destroy the soil body of foundation structure inside and outside wall and bottom, and with its discharge, eliminate or minimizing soil body side friction power and end resistance, so that the concrete foundation structure can rely on self gravitation or other external force (negative pressure) to realize.The utility model mesohigh water pipe height is adjustable, keeps weep hole and soil body suitable distance, can make the aperture water under high pressure that enough impulse forces are arranged, and can prevent that again weep hole is blocked.
Description of drawings
Fig. 1 is the utility model embodiment water conservancy diversion drawing out soil equipment sectional drawing.
Fig. 2 is the utility model embodiment water conservancy diversion drawing out soil equipment plan view.
The specific embodiment
As shown in Figure 1, present embodiment is a kind of marine precast concrete caisson/cartridge type wind-powered electricity generation basis water conservancy diversion sinking device that fetches earth, at sea bottomless steel casing 3 is installed in wind-powered electricity generation concrete foundation structure 1 bottom, steel casing 3 bottoms be equipped with spring net 4(linked to each other side by side by spring form), the steel box house, be horizontally disposed with 2 ~ 3 high-pressure water pipe 5 along the steel casing, interval 40 ~ 80mm is evenly arranged the downward high pressure weep hole of many groups, weep hole aperture 4 ~ 8mm on the water pipe.Be embedded with some water inlet pipes 7 in the concrete foundation structure 1, water inlet pipe 7 connects high-pressure water pipe 5 through extensible link, and High-Pressure Water is caused high-pressure water pipe 5.Described extensible link can be according to the position of the highly automated adjusting high-pressure water pipe 5 of mud face in the case in case, and the high pressure weep hole of high-pressure water pipe 5 is stopped up by the soil body when preventing from, and assurance high-pressure water pipe 5 can be pressed close to the mud face.
Wherein the steel casing 3 of concrete foundation structure 1 bottom is interconnected, and forms steel case passage 6.Steel casing 3 width are greater than the foundation structure wall thickness, and mud hole 2 is offered at the top that exceeds foundation structure wall thickness part at foundation structure outward flange, steel casing.
During sinking, formation mud is broken up, confused to spring net 4 with the soil body with soil body chopping under the effect of High-Pressure Water, and mud causes outward flange mud hole along steel case passage 6 and locates and be forced out, and top concrete foundation structure realizes fetching earth sinking.
The specific embodiment of present embodiment is as follows: Fig. 2 is a diameter 16m, the cylinder type concrete foundation structure 1 of high 10m, the principle close by area is divided into seven cabin bodies with cylindrical shell, vacuum negative pressure device 8 is installed in the body of cabin, the inside and outside wall thickness of this foundation structure is 0.3m, along the inside and outside wall of foundation structure bottom steel casing 3, the high 0.4m of steel casing, wide 0.4m are installed.At steel casing top, exceed the outer walls of concrete place and offer 120 holes along even circumferential and export as mud, hole diameter is 4cm, the spring net 4 that is provided for breaking ground at the steel bottom half.
Adopt the auxiliary sinking of negative pressure, in seven cabin bodies of foundation structure, vacuumize, under foundation structure deadweight and suction function, steel casing 3 and bottom spring net 4 press down, soil body chopping is become soil block, mud is fully broken up and formed to soil block in cabinet space under the effect of equally distributed High-Pressure Water, because pressure is larger in the casing, in, the mud that forms in the casing of outer wall bottom flows to the mud hole 2 that steel casing outward flange is offered along the passage of casing, and be forced out casing, be forced out by constantly the foundation structure bottom soil body being broken up formation mud, eliminate the end load of the bottom soil body, the frictional resistance of foundation structure sidewall also reduces simultaneously, thereby realizes the foundation structure sinking.
Certainly, above-mentioned explanation is not limitation of the utility model, and the utility model also is not limited to above-mentioned giving an example; those skilled in the art; in scope of the present utility model, the variation of making, change and add or replace, all should belong to protection domain of the present utility model.
Claims (5)
1. a marine precast concrete caisson or the cartridge type wind-powered electricity generation basis water conservancy diversion sinking device that fetches earth, has concrete foundation structure (1), it is characterized in that: along concrete foundation structure (1) bottom bottomless steel casing (3) is installed, this steel casing width is greater than concrete foundation structure (1) wall thickness, spring net (4) is equipped with in described steel casing (3) bottom, steel casing (3) inside, along 2 ~ 3 high-pressure water pipe of steel casing horizontal arrangement (5), some groups of downward high pressure weep holes are arranged at the upper interval of high-pressure water pipe (5), and described high-pressure water pipe (5) connects the water inlet pipe (7) that is embedded in advance in the concrete foundation structure (1).
2. marine precast concrete caisson according to claim 1 or the cartridge type wind-powered electricity generation basis water conservancy diversion sinking device that fetches earth is characterized in that: exceed concrete foundation structure (1) part at steel casing (3) top and offer mud hole (2).
3. marine precast concrete caisson according to claim 1 and 2 or the cartridge type wind-powered electricity generation basis water conservancy diversion sinking device that fetches earth, it is characterized in that: described high-pressure water pipe (5) links to each other through extensible link with water inlet pipe (7).
4. marine precast concrete caisson according to claim 3 or the cartridge type wind-powered electricity generation basis water conservancy diversion sinking device that fetches earth, it is characterized in that: described spring net (4) forms for spring links to each other side by side.
5. marine precast concrete caisson according to claim 4 or the cartridge type wind-powered electricity generation basis water conservancy diversion sinking device that fetches earth, it is characterized in that: described high pressure weep hole arrangement pitch is 40 ~ 80mm, aperture 4 ~ 8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220383136 CN202787292U (en) | 2012-08-03 | 2012-08-03 | Offshore precast concrete caisson or cylinder-type wind power foundation stream guidance soil borrowing immersion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220383136 CN202787292U (en) | 2012-08-03 | 2012-08-03 | Offshore precast concrete caisson or cylinder-type wind power foundation stream guidance soil borrowing immersion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202787292U true CN202787292U (en) | 2013-03-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220383136 Expired - Lifetime CN202787292U (en) | 2012-08-03 | 2012-08-03 | Offshore precast concrete caisson or cylinder-type wind power foundation stream guidance soil borrowing immersion device |
Country Status (1)
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| CN (1) | CN202787292U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106013214A (en) * | 2016-07-27 | 2016-10-12 | 天津大学前沿技术研究院有限公司 | Thick-wall composite cylindrical foundation with built-in ground breaking device |
| CN106759419A (en) * | 2017-03-16 | 2017-05-31 | 天津大学前沿技术研究院有限公司 | A kind of annular subregion waterpower is broken ground grooving apparatus |
| CN106836267A (en) * | 2017-03-16 | 2017-06-13 | 天津大学前沿技术研究院有限公司 | A kind of annular subregion machinery waterpower combines the grooving apparatus that break ground |
-
2012
- 2012-08-03 CN CN 201220383136 patent/CN202787292U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106013214A (en) * | 2016-07-27 | 2016-10-12 | 天津大学前沿技术研究院有限公司 | Thick-wall composite cylindrical foundation with built-in ground breaking device |
| CN106759419A (en) * | 2017-03-16 | 2017-05-31 | 天津大学前沿技术研究院有限公司 | A kind of annular subregion waterpower is broken ground grooving apparatus |
| CN106836267A (en) * | 2017-03-16 | 2017-06-13 | 天津大学前沿技术研究院有限公司 | A kind of annular subregion machinery waterpower combines the grooving apparatus that break ground |
| CN106836267B (en) * | 2017-03-16 | 2022-06-17 | 天津大学前沿技术研究院有限公司 | Annular partition mechanical-hydraulic combined soil-breaking grooving construction method |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130313 |