CN104164893A - Slinging method - Google Patents
Slinging method Download PDFInfo
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- CN104164893A CN104164893A CN201410366819.XA CN201410366819A CN104164893A CN 104164893 A CN104164893 A CN 104164893A CN 201410366819 A CN201410366819 A CN 201410366819A CN 104164893 A CN104164893 A CN 104164893A
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- platform
- ramming
- sand pocket
- sand
- described platform
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- 238000000034 method Methods 0.000 title claims abstract description 33
- 239000004576 sand Substances 0.000 claims abstract description 57
- 238000001514 detection method Methods 0.000 claims abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 6
- 238000010276 construction Methods 0.000 abstract description 5
- 238000009991 scouring Methods 0.000 abstract 1
- 238000012986 modification Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 description 2
- 244000025254 Cannabis sativa Species 0.000 description 1
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 description 1
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 description 1
- 241000931705 Cicada Species 0.000 description 1
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 235000009120 camo Nutrition 0.000 description 1
- 235000005607 chanvre indien Nutrition 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000011487 hemp Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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- Revetment (AREA)
Abstract
The invention discloses a slinging method. An opposite corner slinging method is mainly used. The method includes the steps that firstly, according to the water flow direction, two incident flow corners of a platform are acquired through detection; the two incident flow corners of the platform are slung; the other two corners of the platform are slung, sand pockets in the four corners of the platform are respectively of a pile shape, and therefore the platform is stabilized; finally other positions of the platform are slung. The method has the advantages that economical efficiency and high efficiency are achieved, pollution is avoided, and operability is high, and construction requirements can be met. Sand piles formed after slinging are connected tightly and are not prone to being undermined, anti-scouring protection can be provided for the base type platform, and the base type platform can be well protected.
Description
Technical field
The present invention relates to submercible unit scour protection field, particularly a kind of ramming method.
Background technology
Beach shallow sea prospection for many years facts have proved, submercible unit is successfully in the use of beach neritic province domain, especially, at brill completion and the production testing operation in Tan Hai marine site, has brought into play irreplaceable important function.Because shallow-water oilfield submarine surface is mucky soil and silt, cause submercible unit in the oil field operation process of sea, China's Bohai Offshore beach, gene basis causes the change of Marine Environment Factors, can cause basis washing away around, produce and wash in a pan sky, cause even unstability of basic slippage, the safety of serious threat platform, is a great problem of puzzlement bottom-supported platform safe construction.
Summary of the invention
The present invention a kind of ramming method is provided, to solve platform, around produce and wash in a pan empty technical problem.
For solving the problems of the technologies described above, the invention provides a kind of ramming method, be used to submercible unit that scour protection is provided, described method comprises: according to the direction of current, detect and obtain two angles that described platform is met stream; Described platform is met to two angles of stream and carry out ramming; Ramming is carried out at two other angle to described platform, so that the sand pocket of four jiaos, described platform is heap shape, with stabilized platform; Ramming is carried out in other position to described platform; Wherein, the scope of the bow stern sand pocket height d of described platform is: 0.7D≤d < D, wherein, the height of foundation that D is described platform, described platform sand pocket is around trapezoidal, and the scope of the extension s of described platform sand pocket is around: s >=0.7D.
Preferably, described, according to the direction of current, before the described platform of detection acquisition is met two angles of stream, described method also comprises: the speed that detects described current; According to the speed of described current, determine sand grains diameter.
Preferably, after ramming is carried out in described other position to described platform, described method also comprises: described platform sand pocket is around piled up.
By one or more technical scheme of the present invention, the present invention has following beneficial effect or advantage:
A kind of ramming method provided by the invention, has mainly been used ' diagonal angle ramming method ', first according to the direction of current, detects and obtains two angles that platform is met stream; Ramming is carried out at two angles of then platform being met to stream; Again ramming is carried out in two other angle of platform, so that the sand pocket of four jiaos, platform is heap shape, with stabilized platform; Finally ramming is carried out in other position of platform.The method has the features such as economy, efficient, pollution-free, strong operability, can meet construction requirement.The sand heap forming after ramming connects closely, and difficult quilt is washed in a pan empty, can provide scour protection for protection submercible unit, and protect submercible unit well.
Accompanying drawing explanation
Fig. 1 is from selecting sand to the overall flow figure of ramming in the embodiment of the present invention;
Fig. 2 is the flow chart of embodiment of the present invention ramming method;
Fig. 3 A-Fig. 3 D is the schematic diagram of ramming in the embodiment of the present invention;
Fig. 4-Fig. 5 is seat bottom type production platform ramming scope schematic diagram in the embodiment of the present invention.
The specific embodiment
In order to make the application the technical staff in the technical field more clearly understand the application, below in conjunction with accompanying drawing, by specific embodiment, present techniques scheme is described in detail.
The embodiment of the present invention has been described a kind of ramming method, is used to submercible unit that scour protection is provided.
Please refer to Fig. 1 below, described from selecting sand to all processes of ramming.
Step 1, selects gravel size.
Detect the speed of current; According to the speed of current, determine sand grains diameter.
First according to well location field measurement water velocity, contrast You Ersitelong sand grains----flow velocity logarithmic curve, considers that ramming is constructed and the job safety of follow-up platform, selects the gravel size of throwing sand pocket.
Step 2, sandstone pack, shipment.
Take to be exclusively managed by a specially-assigned person, pouch adds the mode of dress, machinery shipment, manual jettisoning.
(1) be exclusively managed by a specially-assigned person: arrange the selection of the omnidistance supervision record of special messenger sandstone, transportation, pack, shipment overall process.
(2) pouch adds dress: sandstone buying, strictly select particle diameter, and definite compartment mensuration of taking of sandstone volume, sandstone volume in the compartment of measurement rules, avoids measuring irregular sand heap volume in place, causes measure error, to guarantee quantity.Select high-quality gunnysack, the rope made of hemp, gunnysack sack must be tightened, and guarantees that 1 side's sandstone pack is no less than 30 bags.
(3) machinery shipment: while using loader shipment, forbid loader directly to shovel sand loading bag, in order to avoid sand pocket is damaged in a large number, adopts a dead lift mode to be put in loading shovel, then load onto ship.
Step 3, selects ramming mode.
The phenomenon naughty empty due to four jiaos of generations of platform mat is the most serious, for preventing this situation, uses " diagonal angle ramming method " to carry out ramming.
Step 4, ramming construction.
Use " diagonal angle ramming method " to carry out ramming.
Concrete true principle is: first detect water (flow) direction, utilize large ship to meet two jiaos of stream to platform mat and carry out ramming, then to other two jiaos of rammings, after four jiaos of rammings finish, ramming is carried out in other position of platform mat.After ramming, by diver, sand pocket is piled up.Ramming finishes rear diver should be felt mat surrounding ramming situation immediately, confirms ramming quality.
Main implementation process please refer to Fig. 2.
S1, according to the direction of current, detects and obtains two angles that platform is met stream.
S2, meets two angles of stream and carries out ramming to platform.
S3, carries out ramming to two other angle of platform, so that the sand pocket of four jiaos, platform is heap shape, with stabilized platform.
S4, carries out ramming to other position of platform.
Wherein, the scope of the bow stern sand pocket height d of platform is: 0.7D≤d < D, wherein, and the height of foundation that D is platform, platform sand pocket is around trapezoidal, and the scope of the extension s of platform sand pocket is around: s >=0.7D.
The extraneous factor that need to consider when implementing ramming:
(1) meteorologic factor: should select at least to have the good meteorological time towage of 3 conscience before platform towage, construct because of weather cause influence ramming after avoiding platform to sit the end, guarantee that the end protection of platform seat once completes.
(2) boats and ships support: sat before the end ramming ship and be all on board and await orders, as ramming condition does not possess, platform is postponed the seat end; Platform is implemented ramming operation after sitting the end immediately.
(3) staffing: ramming ship is accepted platform staffing, each position ramming quantity is sat end situation according to platform and is determined.
(4) go along with sb. to guard him four jiaos: utilize large ship to meet two jiaos of stream to platform mat and carry out ramming, then to other two jiaos of rammings, order is shown in Fig. 3 A-Fig. 3 B.During ramming, to guarantee ramming speed and along throwing under platform mat slope, as early as possible sand pocket is thrown in water.Utilize that low slack tide seawater velocity is low, boats and ships are apart from the difficult feature being washed away by ocean current of the nearly sand pocket in seabed, make it on four jiaos, platform, be heap shape, guarantee stabilized platform in the fastest situation.On large ship, be equipped with loader, utilizing loader to load that sand pocket quantity is fixed, easily neatly jettisoninged, efficiency is high, fireballing advantage, ensureing that platform sits end safety, can also effectively reduce sand pocket and run off.Forbid loader directly to shovel sand loading bag, should adopt a dead lift mode to be put in loading shovel.In order to avoid sand pocket is damaged in a large number, cause loose sand stone to drop into marine, affect ramming quality.After four jiaos of sand pockets are thrown and thrown, under diver, water carries out pile to sand pocket.
(5) periphery ramming: after four jiaos of rammings finish, ramming is carried out in other position of platform mat.During ramming, be chosen in before and after low slack tide and carry out within 2 hours, will guarantee ramming speed and along throwing under platform mat slope, utilize ocean current to make sand pocket in seabed natural discharging slope order during ramming, order is shown in Fig. 3 C-Fig. 3 D.At platform bow, stern narrow space place, utilize canoe to carry out manual jettisoning sand pocket, other position utilizes large ship to jettisoning.
(6) pile sand pocket: by diver, sand pocket is piled up after ramming.Sand pocket is put neatly, highly even, stops sand pocket stacking and occurs too high, too low, the fickle condition of mistake., while easily causing the boats and ships sides such as oil tanker by platform, there is scraping hull bottom phenomenon in sand pocket excessive height; Sand pocket height is too low, easily produces unsettled flow field and wave field, makes to produce turbulent flow, eddy flow near sand pocket, produces and washes in a pan empty phenomenon; Sand pocket heap is let slip thin, along with the time is elongated, under the effect through wave, trend, causes sand pocket disappearance, produces and washes in a pan empty phenomenon.
(7) stage is felt: ramming is 70% of design ramming quantity first, after stage ramming, diver should feel mat surrounding ramming situation immediately, confirm ramming quality, draw sand pocket distribution map, and according to sand pocket distribution situation, instruct the ramming of next stage, ramming imperfection district is carried out to emphasis and mend ramming.Ramming is felt after all finishing again, confirms ramming quality.
Ramming is gone along with sb. to guard him effect and is seen Fig. 4-Fig. 5, and bow stern sand pocket height is not less than 0.7 times of platform base height, and base extension is no less than 1.5 times of platform base height, is trapezoidal and piles up.
For example, the scope of the bow stern sand pocket height d of platform is: 0.7D≤d < D, wherein, and the height of foundation that D is platform, platform sand pocket is around trapezoidal, and the scope of the extension s of platform sand pocket is around: s >=0.7D.
By one or more embodiment of the present invention, the present invention has following beneficial effect or advantage:
A kind of ramming method provided by the invention, has mainly been used ' diagonal angle ramming method ', first according to the direction of current, detects and obtains two angles that platform is met stream; Ramming is carried out at two angles of then platform being met to stream; Again ramming is carried out in two other angle of platform, so that the sand pocket of four jiaos, platform is heap shape, with stabilized platform; Finally ramming is carried out in other position of platform.The method has the features such as economy, efficient, pollution-free, strong operability, can meet construction requirement.The sand heap forming after ramming connects closely, and difficult quilt is washed in a pan empty, can provide scour protection for protection submercible unit, and protect submercible unit well.
Although described the application's preferred embodiment, once one of ordinary skilled in the art obtains the basic creative concept of cicada, can make other change and modification to these embodiment.So claims are intended to all changes and the modification that are interpreted as comprising preferred embodiment and fall into the application's scope.
Obviously, those skilled in the art can carry out various changes and modification and the spirit and scope that do not depart from the application to the application.Like this, if within these of the application are revised and modification belongs to the scope of the application's claim and equivalent technologies thereof, the application is also intended to comprise these changes and modification interior.
Claims (3)
1. a ramming method, is used to submercible unit that scour protection is provided, and it is characterized in that, described method comprises:
According to the direction of current, detect and obtain two angles that described platform is met stream;
Described platform is met to two angles of stream and carry out ramming;
Ramming is carried out at two other angle to described platform, so that the sand pocket of four jiaos, described platform is heap shape, with stabilized platform;
Ramming is carried out in other position to described platform;
Wherein, the scope of the bow stern sand pocket height d of described platform is: 0.7D≤d < D, wherein, the height of foundation that D is described platform, described platform sand pocket is around trapezoidal, and the scope of the extension s of described platform sand pocket is around: s >=0.7D.
2. ramming method as claimed in claim 1, is characterized in that, described, according to the direction of current, before the described platform of detection acquisition is met two angles of stream, described method also comprises:
Detect the speed of described current;
According to the speed of described current, determine sand grains diameter.
3. ramming method as claimed in claim 1, is characterized in that, after ramming is carried out in described other position to described platform, described method also comprises:
Described platform sand pocket is around piled up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410366819.XA CN104164893A (en) | 2014-07-29 | 2014-07-29 | Slinging method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410366819.XA CN104164893A (en) | 2014-07-29 | 2014-07-29 | Slinging method |
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| Publication Number | Publication Date |
|---|---|
| CN104164893A true CN104164893A (en) | 2014-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410366819.XA Pending CN104164893A (en) | 2014-07-29 | 2014-07-29 | Slinging method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105544619A (en) * | 2015-12-31 | 2016-05-04 | 中交第三航务工程局有限公司宁波分公司 | Antiscour protection method for fan foundation |
| CN105626963A (en) * | 2016-04-11 | 2016-06-01 | 中国石油大学(华东) | Channel-type hanging submarine pipeline slinging treatment device and construction method thereof |
| CN108330977A (en) * | 2017-12-28 | 2018-07-27 | 中交烟台环保疏浚有限公司 | SA sand bedding course throwing constructions |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1940185A (en) * | 2006-09-06 | 2007-04-04 | 水利部交通部电力工业部南京水利科学研究院 | Waterproof riprap inspection of dike |
| KR20090069767A (en) * | 2007-12-26 | 2009-07-01 | 고재호 | Eco-friendly packaging material to prevent global warming and artificial pond floor structure |
| CN103233444A (en) * | 2013-04-23 | 2013-08-07 | 中交四航工程研究院有限公司 | Underwater riprap foundation bed and side slope erosion resisting structure and construction method thereof |
-
2014
- 2014-07-29 CN CN201410366819.XA patent/CN104164893A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1940185A (en) * | 2006-09-06 | 2007-04-04 | 水利部交通部电力工业部南京水利科学研究院 | Waterproof riprap inspection of dike |
| KR20090069767A (en) * | 2007-12-26 | 2009-07-01 | 고재호 | Eco-friendly packaging material to prevent global warming and artificial pond floor structure |
| CN103233444A (en) * | 2013-04-23 | 2013-08-07 | 中交四航工程研究院有限公司 | Underwater riprap foundation bed and side slope erosion resisting structure and construction method thereof |
Non-Patent Citations (3)
| Title |
|---|
| 中国石油学会石油工程专业委员会海洋工程工作部: "《海洋石油工程技术论文 第四集》", 31 August 2012, article "浅谈底座式采油平台防淘空、滑移技术措施研究" * |
| 戴金山: "浅谈水下抛石护岸设计与施工", 《治淮》, no. 6, 30 June 2004 (2004-06-30) * |
| 陈养厚: "滩海石油平台桩基冲刷防治及CFD仿真", 《中国石油大学学报》, vol. 33, no. 2, 28 February 2009 (2009-02-28) * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105544619A (en) * | 2015-12-31 | 2016-05-04 | 中交第三航务工程局有限公司宁波分公司 | Antiscour protection method for fan foundation |
| CN105626963A (en) * | 2016-04-11 | 2016-06-01 | 中国石油大学(华东) | Channel-type hanging submarine pipeline slinging treatment device and construction method thereof |
| CN105626963B (en) * | 2016-04-11 | 2017-09-01 | 中国石油大学(华东) | Channel type seabed suspended pipeline sand blasting treatment device and construction method |
| CN108330977A (en) * | 2017-12-28 | 2018-07-27 | 中交烟台环保疏浚有限公司 | SA sand bedding course throwing constructions |
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Application publication date: 20141126 |