CN1536169A - Offshore normal pressure impact firm platform - Google Patents
Offshore normal pressure impact firm platform Download PDFInfo
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- CN1536169A CN1536169A CNA031121209A CN03112120A CN1536169A CN 1536169 A CN1536169 A CN 1536169A CN A031121209 A CNA031121209 A CN A031121209A CN 03112120 A CN03112120 A CN 03112120A CN 1536169 A CN1536169 A CN 1536169A
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- platform
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- offshore
- grouting
- jet impact
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Abstract
The present invention relates to a new type offshore fixed platform-offshore positive pressure jet impact fixed platform. Said platform supporting mechanism and its lower portion short pile are welded together and made into one body, in the intioer of short pile a jet impact mechanism and grouting mechanism are fixed, the jet impact mechanism and grouting mechanism are connected with construction machine by means of pipeline, the jet impact mechanism is equipped with spray nozzle, said spray nozzle is positioned in middle and lower portion of short pile, the grouting mechanism is equipped with grouting hole, said grouting hole is placed on the pile wall of lower portion of short pile, and said grouting hole is opened outward, and when it is used for offshore construction, said invention utilizes jet impact to implement perfusion of said platform.
Description
Technical field:
The present invention develops a kind of marine fixed platform that is applicable to.
Technical background:
As the load basis, elder generation is with handling and securing after upending procedure, along conduit piling fixed platform during offshore construction with the steel friction pile for a large amount of jacket platforms that use in the marine petroleum development now, platform.The steel using amount of stake can account for about half of the total steel using amount of platform, and work such as marine guidance piling, pile extension can not launch simultaneously, needs the long offshore construction time, and platform total cost height has had a strong impact on the development benefit of offshore oilfield.
Summary of the invention:
The objective of the invention is to develop a kind of marine fixed platform, its form of structure, form of construction work, bearing mechanism are all different with the conventional catheters body panel, can exist to use stub under the foundation condition of time bearing stratum and replace friction pile as platform load basis in more shallow stratum.Platform is integral constructing by land, also can be by deck structure and substructure sectional construction, and the substructure stub that comprises the platform braced structures and be welded as a whole with it wherein in the bottom.Braced structures needn't be considered the needs of guide pile, and main key pile diameter and gradient all can be chosen flexibly even can be changed.Platform makes stub go into mud by spray towards mode at sea, ground around the consolidation by grouting then, thus realize integral installation.
The present invention has following advantage:
(1) adopts stub, change bearing mechanism, save material.Conventional jacket platform is by the friction pile load, and steel using amount accounts for about half of the total steel using amount of platform usually.The positive pressure platform that the present invention carries stub load exists in shallow layer foundation under the situation of time bearing stratum, and end load and frictional force all effectively play a role, and can significantly save a steel using amount.
(2) optimize structure, reduce outer lotus effect, and give full play to strength of materials performance, save material.Platform braced structures (being equivalent to jacket) needn't be considered the needs of guide pile, thereby main key pile diameter and gradient can be chosen flexibly even can be changed.Main key pile adopts near Water Plane than the paxilla footpath, can significantly reduce platform control loads such as ice, wave, and the optimization of spud leg gradient is distribute loads better, gives full play to strength of materials performance and foundation capability, reaches the effect of saving material.
(3) platform and integrally is installed, and improves marine installation quality, shortens the engineering time, saves expensive marine installation exercise expense.Conventional jacket platform marine guidance piling, pile extension operation can't launch simultaneously, and the offshore construction time is longer, and the offshore construction expense is also higher than platform structure expenditure of construction usually.The positive pressure platform adopts spray earlier to carry out offshore integral towards the post-reinforcing method and installs, and time ratio piling is saved more than 1 times, the corresponding reduction of expense.
Technical solution of the present invention: platform braced structures and its underpart stub are welded as a whole, the stub internal fixation has spray impact machine structure and slip casting mechanism, spray impact machine structure and slip casting mechanism are connected to construction machinery by pipeline, spray impact machine structure is provided with nozzle, nozzle is positioned at the middle and lower part of stub, slip casting mechanism is provided with grouting port, and grouting port is arranged on the pile lining of stub bottom, and the grouting port opening is outside.
Description of drawings:
Fig. 1 is marine the positive pressure platform schematic diagram
1, platform braced structures 2, stub 3, spray impact machine structure 4, slip casting mechanism
5, pipeline 6, construction machinery 7, nozzle 8, grouting port
The specific embodiment:
Now, the present invention is further described: make platform braced structures and stub by designing requirement in conjunction with Figure of description; As required with designs of nozzles, be made into rotation or fixed; Platform braced structures and stub are welded to connect, spray impact machine structure and slip casting mechanism are installed in stub; Reserve the interface that links to each other with spray impact machine structure, slip casting mechanism on the stub top.During marine the installation, platform braced structures and stub are transported to the pre-location of well and sling, construction machinery is connected to spray impact machine structure, the slip casting mechanism interface that the stub top is reserved by pipeline, finish platform and install and prepare with crane barge with barge; Then, start construction machinery, by the outside jet water course of spray impact machine structure, spray removes the soil plug or the bottom soil body in the stub, and stub sinks, and adjusts the platform level by spray stamping press and the flow of controlling each stub, stops spray towards operation when stub sinks to desired depth; At last, towards situation, start construction machinery, to injecting reinforcement material in the ground around the stub, reinforce the ground around the stub, finish the sea of platform and install by slip casting mechanism according to formation properties and spray.
Claims (3)
1, marine the positive pressure platform, it is characterized in that platform braced structures (1) and its underpart stub (2) are welded as a whole, stub (2) internal fixation has spray impact machine structure (3) and slip casting mechanism (4), and spray impact machine structure (3) and slip casting mechanism (4) are connected to construction machinery (6) by pipeline (5).
2, according to claims 1 described marine the positive pressure platform, it is characterized in that spraying impact machine structure (3) and be provided with nozzle (7), nozzle (7) is positioned at the middle and lower part of stub (2).
3, according to claims 1 described marine the positive pressure platform, it is characterized in that slip casting mechanism (4) is provided with grouting port (8), grouting port (8) is arranged on the pile lining of stub (2) bottom, and grouting port (8) opening is outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031121209A CN1536169A (en) | 2003-04-08 | 2003-04-08 | Offshore normal pressure impact firm platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031121209A CN1536169A (en) | 2003-04-08 | 2003-04-08 | Offshore normal pressure impact firm platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1536169A true CN1536169A (en) | 2004-10-13 |
Family
ID=34319855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA031121209A Pending CN1536169A (en) | 2003-04-08 | 2003-04-08 | Offshore normal pressure impact firm platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1536169A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007045173A1 (en) * | 2005-10-19 | 2007-04-26 | Zhenxin Chen | An assembly type open caisson and a marine engineering structure |
| CN108956105A (en) * | 2018-05-16 | 2018-12-07 | 福州大学 | Technology of Deepwater Mooring System body bearing capacity simulation test device and test method |
| CN110983947A (en) * | 2019-11-25 | 2020-04-10 | 浙江朱光波机械科技有限公司 | High-bearing jet bridge device |
-
2003
- 2003-04-08 CN CNA031121209A patent/CN1536169A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007045173A1 (en) * | 2005-10-19 | 2007-04-26 | Zhenxin Chen | An assembly type open caisson and a marine engineering structure |
| CN108956105A (en) * | 2018-05-16 | 2018-12-07 | 福州大学 | Technology of Deepwater Mooring System body bearing capacity simulation test device and test method |
| CN110983947A (en) * | 2019-11-25 | 2020-04-10 | 浙江朱光波机械科技有限公司 | High-bearing jet bridge device |
| CN110983947B (en) * | 2019-11-25 | 2021-07-02 | 深圳朱光波机械科技有限公司 | High-bearing jet bridge device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |