CN104452803A - Artificial seabed foundation applicable to gravity type platform - Google Patents
Artificial seabed foundation applicable to gravity type platform Download PDFInfo
- Publication number
- CN104452803A CN104452803A CN201410725788.2A CN201410725788A CN104452803A CN 104452803 A CN104452803 A CN 104452803A CN 201410725788 A CN201410725788 A CN 201410725788A CN 104452803 A CN104452803 A CN 104452803A
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- CN
- China
- Prior art keywords
- groove
- foundation
- space
- seabed
- artificial foundation
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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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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/52—Submerged foundations, i.e. submerged in open water
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
Abstract
The invention discloses an artificial seabed foundation applicable to a gravity type platform. The artificial seabed foundation comprises a groove, wherein the groove is matched with a lower bottom hull of the gravity type platform; the bottom of the lower bottom hull of the gravity type platform is inclined; a bottom foundation is connected with the bottom of the groove. A manufacturing method of the artificial seabed foundation comprises the following steps: cleaning the mud surface of the seabed so as to obtain a space, controlling the side wall of the space to be inclined, and manufacturing the artificial seabed foundation through the following step 1) or the step 2): 1) forming the groove in the space, and filling sand into a cavity between the groove and the side wall of the space; 2) hitting the bottom foundation into the bottom of the space, forming the groove inside the space, and filling sand into the cavity between the groove and the side wall of the space. The artificial seabed foundation has the advantages that when the gravity type platform is fixed, the levelness and the stability of the gravity type platform are ensured, the problem that the bottom of the gravity type platform is likely to wash out and hollow out is solved, the platform is moveable and is simple to displace, return and discard, and the practical application cost is lowered.
Description
Technical field
The present invention relates to a kind of seabed artificial foundation being applicable to gravity platform, belong to ocean engineering field.
Background technology
Gravity platform is conventional offshore oil and gas field development facility, is normally directly stabilized in seabed by the weight of dependence completely itself.It and pile supported platform carry on a shoulder pole vertical load and horizontal loading unlike the pile do not needed with inserting seabed, therefore can save time and the steel using amount of Attention problems.
Marine marginal field is developed, particularly for the small field without support facility, the gravity platform with removable function has the low advantage of cost, is specially adapted to " honeybee formula " development mode, has namely adopted a small oil field and has just transferred to another one small oil field.This development scheme makes the investment of a set of development facility be recycled from multiple oil field, thus reduces the development cost of small oil field.Solving oil field periphery does not rely on engineering services or periphery to rely on the saturated difficulty brought of engineering.
After gravity platform is seated at seabed, some usually can be adopted when gravity platform is in place as squeezed into the measures such as slide resistant pile, to keep resistant slide stability and overturning or slip resistance analysis stability.Meanwhile, As time goes on, gravity platform also faces underflow and washes away, and causes the bottom of gravity platform by the problem emptied, and gravity platform is unsettled easily to collapse.In addition, due to the absorption of soil, make the displacement of gravity platform and throw aside comparatively difficult.
Therefore, in order to solve the application problem of above-mentioned gravity platform, a kind of novel seabed artificial foundation is proposed.
Summary of the invention
The object of this invention is to provide a kind of seabed artificial foundation being applicable to gravity platform, the present invention considered gravity platform installation, operation, be shifted and the various operating mode such as to throw aside, be applicable to shallow sea, a stable ground can be provided for gravity platform, and ensure that the removable performance of gravity platform.
The seabed artificial foundation being applicable to gravity platform provided by the invention, comprises a groove, and the bottom mat of described groove and described gravity platform matches;
The bottom of the bottom mat of described gravity platform is skewed.
Above-mentioned seabed artificial foundation, described seabed artificial foundation also comprises base foundation;
Described base foundation is connected to the bottom of described groove;
Described base foundation enhances the intensity of described seabed artificial foundation, when using described seabed artificial foundation, described base foundation ensure that the gradient of gravity platform, total settlement and dynamic effect are no more than safety threshold value, namely ensure that the levelness of gravity platform, and overcome uneven subsidence.
Above-mentioned seabed artificial foundation, described base foundation comprises several cement mixing piles, can be and is evenly arranged.
Above-mentioned seabed artificial foundation, described groove adopts concrete to make.
Above-mentioned seabed artificial foundation, described groove adopts steel framework to reinforce.
Above-mentioned seabed artificial foundation, the periphery of described groove is filled with sandstone, and described sandstone can effectively prevent the bottom of described groove from being emptied by seawater scouring.
In the present invention, described groove enhances the anti-slide performance of gravity platform.
The present invention is applicable to the preparation method of the seabed artificial foundation of gravity platform, comprises the steps:
Seabed is carried out the cleaning of mud face and obtain a space, and the sidewall controlling described space is skewed; By following 1) or 2) step namely obtain described seabed artificial foundation:
1) in described space, make described groove, and fill described sandstone in cavity between described groove and the sidewall in described space;
2) squeeze into described base foundation in the bottom in described space, then in described space, make described groove, and fill described sandstone in cavity between described groove and the sidewall in described space.
When using gravity platform seabed artificial foundation of the present invention, the bottom mat of the gravity platform matched with described seabed artificial foundation is seated in the groove of described seabed artificial foundation.
Compared with prior art, the present invention has the following advantages:
(1) when fixing for gravity platform, make platform moveable, be shifted, reset and throw aside simple.
(2) ensure that levelness and the stability of gravity platform.
(3) problem being easily washed bottom gravity platform and emptying is solved.
(4) surrounding saving the bottom mat of gravity platform beats slide resistant pile or arranges the investments such as choking wall, reduces the cost of practical application.
Accompanying drawing explanation
Fig. 1 is the elevation that the present invention is applicable to the seabed artificial foundation of gravity platform.
Fig. 2 is the manufacturing process figure that the present invention is applicable to the seabed artificial foundation of gravity platform.
Fig. 3 is the structural representation using the present invention to be applicable to the seabed artificial foundation of gravity platform.
Fig. 4 is the structural representation using the present invention to be applicable to the seabed artificial foundation of gravity platform.
In figure, mark is as follows:
1 groove, 2 cement mixing piles.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is further described, but the present invention is not limited to following examples.
Embodiment 1, be applicable to gravity platform seabed artificial foundation and application thereof
As shown in Figure 1, for the present invention is applicable to the seabed artificial foundation of gravity platform, it comprises groove 1 (adopting steel framework to reinforce) that concrete makes and is connected to multiple cement mixing piles 2 of bottom of groove 1, and multiple cement mixing pile 2 is for being evenly arranged.Groove 1 matches with the bottom mat of gravity platform; The bottom of the bottom mat of gravity platform is skewed, and groove 1 can enhance the anti-slide performance of gravity platform.The periphery of groove 1 is filled with sandstone, and sandstone can effectively prevent the bottom of groove 1 from being emptied by seawater scouring.Cement mixing pile 2 can enhance the intensity of seabed artificial foundation, when using seabed artificial foundation, cement mixing pile 2 ensure that the gradient of gravity platform, total settlement and dynamic effect are no more than safety threshold value, namely ensure that the levelness of gravity platform, and overcomes uneven subsidence.
As shown in Figure 2, to be applicable to the manufacturing process of the seabed artificial foundation of gravity platform as follows in the present invention:
Seabed is carried out the cleaning of mud face and obtain a space, and the sidewall controlling space is skewed; By squeezing into cement mixing pile 2 in the bottom in space, then in space, make groove 1, and fill sandstone in cavity between groove 1 and the sidewall in space, namely obtain seabed artificial foundation:
As shown in Figure 3 and Figure 4, using the present invention when being applicable to gravity platform seabed artificial foundation, is that skewed bottom mat is seated in groove 1 by the bottom of the gravity platform matched with seabed artificial foundation.
Claims (7)
1. be applicable to a seabed artificial foundation for gravity platform, it is characterized in that: described seabed artificial foundation comprises a groove, the bottom mat of described groove and described gravity platform matches;
The bottom of the bottom mat of described gravity platform is skewed.
2. seabed artificial foundation according to claim 1, is characterized in that: described seabed artificial foundation also comprises base foundation;
Described base foundation is connected to the bottom of described groove.
3. seabed artificial foundation according to claim 2, is characterized in that: described base foundation comprises several cement mixing piles.
4. the seabed artificial foundation according to any one of claim 1-3, is characterized in that: described groove adopts concrete to make.
5. the seabed artificial foundation according to any one of claim 1-4, is characterized in that: described groove adopts steel framework to reinforce.
6. the seabed artificial foundation according to any one of claim 1-5, is characterized in that: the periphery of described groove is filled with sandstone.
7. be applicable to the preparation method of the seabed artificial foundation of gravity platform according to any one of claim 1-6, comprise the steps:
Seabed is carried out the cleaning of mud face and obtain a space, and the sidewall controlling described space is skewed; By following 1) or 2) step namely obtain described seabed artificial foundation:
1) in described space, make described groove, and fill described sandstone in cavity between described groove and the sidewall in described space;
2) squeeze into described base foundation in the bottom in described space, then in described space, make described groove, and fill described sandstone in cavity between described groove and the sidewall in described space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410725788.2A CN104452803B (en) | 2014-12-03 | 2014-12-03 | Be applicable to the seabed artificial foundation of gravity platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410725788.2A CN104452803B (en) | 2014-12-03 | 2014-12-03 | Be applicable to the seabed artificial foundation of gravity platform |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104452803A true CN104452803A (en) | 2015-03-25 |
| CN104452803B CN104452803B (en) | 2016-04-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410725788.2A Active CN104452803B (en) | 2014-12-03 | 2014-12-03 | Be applicable to the seabed artificial foundation of gravity platform |
Country Status (1)
| Country | Link |
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| CN (1) | CN104452803B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000027149A (en) * | 1998-07-09 | 2000-01-25 | Toyo Constr Co Ltd | Fixing method of caisson |
| CN101260664A (en) * | 2008-04-22 | 2008-09-10 | 中船第九设计研究院工程有限公司 | Soft soil foundation large scale steel float lock head construction method |
| CN101838996A (en) * | 2010-05-17 | 2010-09-22 | 中国海洋石油总公司 | Sea gravity type pile foundation combined fan foundation |
| CN201826291U (en) * | 2010-10-19 | 2011-05-11 | 中国石油化工集团公司 | Gravity type underwater oil storage platform suitable for shallow sea |
| CN201933459U (en) * | 2010-12-17 | 2011-08-17 | 中交第四航务工程勘察设计院有限公司 | Gravity wharf structure with anti-slide plate |
| CN204298846U (en) * | 2014-12-03 | 2015-04-29 | 中国海洋石油总公司 | A kind of seabed artificial foundation being applicable to gravity platform |
-
2014
- 2014-12-03 CN CN201410725788.2A patent/CN104452803B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000027149A (en) * | 1998-07-09 | 2000-01-25 | Toyo Constr Co Ltd | Fixing method of caisson |
| CN101260664A (en) * | 2008-04-22 | 2008-09-10 | 中船第九设计研究院工程有限公司 | Soft soil foundation large scale steel float lock head construction method |
| CN101838996A (en) * | 2010-05-17 | 2010-09-22 | 中国海洋石油总公司 | Sea gravity type pile foundation combined fan foundation |
| CN201826291U (en) * | 2010-10-19 | 2011-05-11 | 中国石油化工集团公司 | Gravity type underwater oil storage platform suitable for shallow sea |
| CN201933459U (en) * | 2010-12-17 | 2011-08-17 | 中交第四航务工程勘察设计院有限公司 | Gravity wharf structure with anti-slide plate |
| CN204298846U (en) * | 2014-12-03 | 2015-04-29 | 中国海洋石油总公司 | A kind of seabed artificial foundation being applicable to gravity platform |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104452803B (en) | 2016-04-20 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Co-patentee after: CNOOC research institute limited liability company Patentee after: China Offshore Oil Group Co., Ltd. Address before: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Co-patentee before: CNOOC Research Institute Patentee before: China National Offshore Oil Corporation |