CN108443581A - A kind of submarine pipeline fills sandbag basis and floats curtain group's scour protection device - Google Patents
A kind of submarine pipeline fills sandbag basis and floats curtain group's scour protection device Download PDFInfo
- Publication number
- CN108443581A CN108443581A CN201810580788.6A CN201810580788A CN108443581A CN 108443581 A CN108443581 A CN 108443581A CN 201810580788 A CN201810580788 A CN 201810580788A CN 108443581 A CN108443581 A CN 108443581A
- Authority
- CN
- China
- Prior art keywords
- basis
- sandbag
- floating
- filling
- fills
- Prior art date
- 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.)
- Pending
Links
- 238000007667 floating Methods 0.000 claims abstract description 43
- 150000001875 compounds Chemical class 0.000 claims abstract description 4
- 239000004746 geotextile Substances 0.000 claims abstract description 4
- 238000010276 construction Methods 0.000 abstract description 6
- 230000002633 protecting effect Effects 0.000 abstract description 3
- 239000004576 sand Substances 0.000 description 14
- 230000000694 effects Effects 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 239000004744 fabric Substances 0.000 description 4
- FWQHNLCNFPYBCA-UHFFFAOYSA-N fluoran Chemical compound C12=CC=CC=C2OC2=CC=CC=C2C11OC(=O)C2=CC=CC=C21 FWQHNLCNFPYBCA-UHFFFAOYSA-N 0.000 description 4
- 244000025254 Cannabis sativa Species 0.000 description 3
- 241001474374 Blennius Species 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000009991 scouring Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- -1 jackstone Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000003134 recirculating effect Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/12—Laying or reclaiming pipes on or under water
- F16L1/16—Laying or reclaiming pipes on or under water on the bottom
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/12—Laying or reclaiming pipes on or under water
- F16L1/20—Accessories therefor, e.g. floats, weights
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Revetment (AREA)
Abstract
The present invention relates to a kind of submarine pipeline scour protection devices.Purpose, which is to provide a kind of submarine pipeline, fills sandbag basis and floats curtain group's scour protection device, the device should have the characteristics that it is simple in structure, be easy to underwater construction, be of low cost, protecting effect it is good, be applicable to various sea beds and flow condition.Technical solution is：A kind of submarine pipeline fills sandbag basis and floats curtain group's scour protection device, it is characterised in that：The device includes filling sandbag basis and floating curtain group on the basis of filling sandbag being arranged；The sandbag basis of filling includes the bag body made of flexible compound geotextiles, and the top of bag body, which is equipped with, fills Sha Kou, and the internal portion's filling ballast of bag is husky, and the shape of bag body cross section is the isosceles triangle that apex angle is obtuse angle；The floating curtain group includes several flexible floating curtains arranged along the length direction for filling sandbag basis, and each flexible floating curtain includes bottom edge and fill sandbag basis top center line fixed cord and the floating body that is arranged at the top of cord.
Description
Technical field
The present invention relates to a kind of submarine pipeline scour protection devices more particularly to a kind of floating based on sandbag using filling
Curtain group's submarine pipeline scour protection device.
Background technology
The normal operation of submarine pipeline is the important guarantee of offshore oil and gas field safety in production.Undersea pipe-laying and other
Mankind's activity can influence the dynamic equilibrium of submarine pipeline marine site sea bed and seabed trend, cause the seabed scouring of pipeline marine site or pipeline
The seabed scouring of periphery part, causing submarine pipeline to occur, suspended span is aerial, and when suspended span reaches a certain level, pipeline loses effectively
Support, in addition pipeline vortex-induced vibration caused by hydrodynamic load so that because of fatigue rupture pipeline break and oil gas occur for pipeline
Leakage leads to economic loss and ecological environment destruction, therefore develops novel, efficient, economic submarine pipeline scour protection technology
With important engineering application value.
There are underwater dumped rockfill, sand hill heap base, concrete mattress pad, Artificial grass for the common means of defence of submarine pipeline at present
And the technologies such as flexible board group.Underwater dumped rockfill, sand hill heap build method and are although relatively easy to construct, but due to solids such as jackstone, sand hills
The presence of body, periphery will appear " secondary to wash away " problem, can cause to close on segment pipe appearance vacantly；Although concrete mattress pad is anti-
It is preferable to protect effect, but when scour occurs in sea bed, concrete will in a row be loaded to tube top, be unfavorable for pipe safety and stabilization, together
Jackstone, sand hill technology, protection edge have the appearance of " secondary to wash away " problem；Artificial grass developed in recent years, bionical seaweed
Equal flexible protectives technology, can effectively avoid it is secondary wash away problem, but since Artificial grass, bionical seaweed are easy under strong flow action
Lodging so that choked flow and sedimentation effect are deteriorated, and protection effect is not good enough, and flexible board group improves drag effect and resistant to lodging
Ability, but the fixed aspect difficulty in its basis is big, price is high, and foot guard effect reliability is not high.Above-mentioned submarine pipeline protects skill
Art requires sea bed to have certain bearing capacity (anchor force), and all there is a problem of underwater construction hardly possible.
Invention content
The purpose of the present invention is overcoming the shortcomings of in above-mentioned background technology, a kind of submarine pipeline is provided fills sandbag basis and float curtain
Group scour protection device, the device should have the characteristics that it is simple in structure, be easy to underwater construction, be of low cost, protecting effect it is good, can
Suitable for various sea beds and flow condition.
The technical scheme is that：
A kind of submarine pipeline fills sandbag basis and floats curtain group's scour protection device, it is characterised in that：The device includes filling sandbag
Basis and floating curtain group on the basis of filling sandbag is set；The sandbag basis of filling includes the bag made of flexible compound geotextiles
Body, the top of bag body, which is equipped with, fills Sha Kou, and the internal portion's filling ballast of bag is husky, and the shape of bag body cross section is the isosceles that apex angle is obtuse angle
Triangle；The floating curtain group includes several flexible floating curtains arranged along the length direction for filling sandbag basis, each flexible floating curtain
Including bottom edge and fill sandbag basis top center line fixed cord and the floating body that is arranged at the top of cord.
The bag internal body portion be it is several fill Sha Cang, these fill husky storehouse along fill sandbag basis length direction arrangement and
Independently of each other.
The top setting for each filling husky storehouse is at least one to fill husky mouth and at least one flexible floating curtain, and adjacent soft
Property floating curtain between keep certain spacing.
The width for filling sandbag basis is 10-20m and height is 0.5-2.0m.
The width of the cord is 3-8m and height is 1-5m.
The floating body is floating drum or floating ball.
The beneficial effects of the invention are as follows：
The present apparatus is laid in above submarine pipeline；Active erosion control of the sandbag basis as protection sea bed is filled, shape is passed through
Optimization design, it is possible to reduce device to protect periphery ocean current and sea bed disturb, effective protection submarine pipeline nearby sea bed from
It washes away, to reduce " secondary to wash away ", improves protection effect, while stable structure can effectively slow down falling anchor and hit to submarine pipeline
Hit influence；Floating curtain group is unfolded and can be put with flow as the deceleration erosion control for reducing bottom ocean current flow velocity, cord naturally in water
Dynamic, water flows through out-of-date can be streamed by blocking at the top of cord and in gap so that neighbouring flow rate of water flow reduces, and is easy to form mud
Sand siltation has played water conservancy diversion and has promoted the effect become silted up；The present apparatus solve difficulty of construction in existing guard technology it is big, it is costly, protection
The problem of effect difference improves the economics and reliability of marine pipeline protection method.
Description of the drawings
Fig. 1 is the dimensional structure diagram of the present invention.
Fig. 2 is the main structure diagram of the present invention.
Fig. 3 is the overlooking structure diagram of the present invention.
Fig. 4 is embodiments of the present invention schematic diagram.
Specific implementation mode
Below in conjunction with Figure of description, the invention will be further described, but the invention is not limited in following embodiments.
As shown in Figure 1, a kind of submarine pipeline, which fills sandbag basis, floats curtain group's scour protection device, including fill sandbag basis and
Floating curtain group on the basis of filling sandbag is set.
The sandbag basis of filling includes bag body 1, and bag body, which is equipped with, fills husky mouth 10, and the internal portion's filling ballast of bag is husky (silt).
The internal portion's setting of the bag it is multiple every cloth (in Fig. 1 shown in dotted line) to be separated out several it is mutually independent fill Sha Cang, these
It fills husky storehouse to arrange along the length direction (vertical direction of Fig. 3) for filling sandbag basis, each fills the top setting at least one in husky storehouse
It is a to fill Sha Kou, it fills husky mouth and is connected to husky storehouse is filled.Water sand mixture is filled by filling using sand pump in husky pocket, water is by geotechnological cloth hole
Gap is oozed out, and silt stays in the internal portion of bag and completes filling ballast sand, and bag body is sufficiently spread out automatically during filling sand；Sand will finally be filled
Mouth closing (can will fill Sha Kou with band rope and tie up closing).
Become when the internal portion of bag fills ballast sand and fill sandbag basis, the cross section of bag body is (perpendicular to cutting for length direction
Face) shape and each to fill the cross-sectional shape in husky storehouse be isosceles triangle, the apex angle of the isosceles triangle is obtuse angle, apex angle
Size be 140-170 degree, fill on the basis of sandbag and then form two symmetrical inclined-planes as fluoran stream surface.
The size for filling sandbag basis is depending on the protection domain of pipeline, it is generally the case that the width (level of Fig. 2
Direction) it is 10-20m, about 10-20 times of submarine pipeline caliber, height (vertical direction of Fig. 2) is 0.5-2.0m, about 2-5
Times submarine pipeline caliber, length (vertical direction of Fig. 3), which is then subject to, facilitates construction.The bag body (including every cloth) is high-strength
Degree, the corrosion resistant flexible compound geotextiles with water penetration are made.
For the bag body for filling sandbag basis by being pre-designed, the cross section through overcharging husky back pkt. body is in isosceles triangle,
Top is that the fluoran stream surface angle with horizontal plane of big obtuse angle and both sides is small acute angle, can reduce the resistance of bottom ocean current；As ocean current V
By will produce downward directed force F (shown in Fig. 4) when fluoran stream surface, to improve stability of foundation, moreover it is possible to reduce to protection edge
The disturbance of edge position ocean current and disturbance and scour to protecting adjacent edges seabed soil.
The sandbag basis of filling is the bag body for loading ballast sand, and there is certain deformability can adapt to sea bed punching automatically
Brush, it is more uniform to sea bed ballast, sea bed stress will not be caused to concentrate and cause local sea bed depressed deformation, can be suitably used for various
The sea bed basis of bearing capacity.
The sandbag basis of filling is laid on submarine pipeline, since the medium position for filling sandbag basis is most thick and solid, should ensure that
The length direction of the center line and submarine pipeline that fill sandbag basis is located in same perpendicular, when fall anchor shock fill sandbag basis when
Shock, which can effectively be slowed down, to be influenced, and submarine pipeline is utmostly protected.
The floating curtain group includes several flexible floating curtains, these flexible floating curtains are arranged along the length direction for filling sandbag basis
(one or several flexible floating curtains are arranged in the top for each filling husky storehouse).Each flexible floating curtain includes cord 2 and floating body 3, cord
Bottom edge is fixed on the top midline position for filling sandbag basis, and floating body is then fixed on the top of cord, and floating body can be floating drum
It can also be floating ball.The width of the cord is 3-8m and height is 1-5m.The cord is by high intensity, corrosion resistant flexibility
Cloth is made, and floating body is made of the resistant material with certain buoyancy and some strength.The bottom edge of the cord is using seam
The mode of system is wrapped in bag body, is increased the connection area of cord and bag body, be ensure that bonding strength.
Cord is unfolded naturally in water under floating body buoyancy, can guarantee that cord will not occur under the conditions of certain flow rate
Lodging has certain lodging tolerance, therefore the effect that can stop reversing current, slow down bottom ocean current flow velocity, realizes and reduce
The function of washing away, increase siltation needs the flow-disturbing recirculating zone for controlling cord rear without departing from the fluoran stream surface for filling sandbag basis top
Region.
This protective device needs, in factory's pre-production (having spliced bag body and floating curtain group), then to transport to scene and applied
Work, concrete construction method are：Bag body is laid in the top of submarine pipeline 9, and floating body is carried out to match weighing, then to bag body into
Row fills husky (being derived from neighbouring silt) under water, fills sand and is filled husky mouth using cover closing after the completion or tightened using rope and fills sand
Mouthful, bag body fills sandbag basis as stable, finally removes counterweight, and floating body floats curtain group after floating to be unfolded.
Claims (6)
1. a kind of submarine pipeline, which fills sandbag basis, floats curtain group's scour protection device, it is characterised in that：The device includes filling sandbag base
Plinth and floating curtain group on the basis of filling sandbag is set；The sandbag basis of filling includes the bag body made of flexible compound geotextiles
(1), the top of bag body, which is equipped with, fills Sha Kou, and the internal portion's filling ballast of bag is husky, the shape of bag body cross section be apex angle be obtuse angle etc.
Lumbar triangle shape；The floating curtain group includes several flexible floating curtains arranged along the length direction for filling sandbag basis, each flexible floating
Curtain includes bottom edge and the floating body (3) that fills the fixed cord of top center line (2) on sandbag basis and be arranged at the top of cord.
2. submarine pipeline according to claim 1, which fills sandbag basis, floats curtain group's scour protection device, it is characterised in that：It is described
Bag internal body portion be it is several fill Sha Cang, these fill husky storehouse and are arranged along the length direction for filling sandbag basis and mutual indepedent.
3. submarine pipeline according to claim 2, which fills sandbag basis, floats curtain group's scour protection device, it is characterised in that：It is described
Each fill husky storehouse top setting it is at least one fill Sha Kou (10) and at least one flexible floating curtain, and adjacent flexible float curtain it
Between keep certain spacing.
4. submarine pipeline according to claim 3, which fills sandbag basis, floats curtain group's scour protection device, it is characterised in that：It is described
The width for filling sandbag basis is 10-20m and height is 0.5-2.0m.
5. submarine pipeline according to claim 4, which fills sandbag basis, floats curtain group's scour protection device, it is characterised in that：It is described
The width of cord is 3-8m and height is 1-5m.
6. submarine pipeline according to claim 5, which fills sandbag basis, floats curtain group's scour protection device, it is characterised in that：It is described
Floating body is floating drum or floating ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810580788.6A CN108443581A (en) | 2018-06-07 | 2018-06-07 | A kind of submarine pipeline fills sandbag basis and floats curtain group's scour protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810580788.6A CN108443581A (en) | 2018-06-07 | 2018-06-07 | A kind of submarine pipeline fills sandbag basis and floats curtain group's scour protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108443581A true CN108443581A (en) | 2018-08-24 |
Family
ID=63206761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810580788.6A Pending CN108443581A (en) | 2018-06-07 | 2018-06-07 | A kind of submarine pipeline fills sandbag basis and floats curtain group's scour protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108443581A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112332360A (en) * | 2020-10-30 | 2021-02-05 | 国网浙江省电力有限公司舟山供电公司 | Self-sinking type current-variable interlocking row protection device |
| CN115434296A (en) * | 2022-09-29 | 2022-12-06 | 南通市海洋水建工程有限公司 | Construction method of anti-scour-sedimentation offshore booster station |
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| US3727417A (en) * | 1971-07-23 | 1973-04-17 | Mc Dermott J & Co Inc | Submarine pipeline laying apparatus |
| JPS566971A (en) * | 1979-05-23 | 1981-01-24 | Coyne & Bellier | Anchoring method and device for conduit pipe like as submarine pipeline |
| GB9311983D0 (en) * | 1992-06-10 | 1993-07-28 | Norwegian Contractors | Method and means for production,temporary storage,towing and installation of long pipelines along the sea bottom |
| JP2001146723A (en) * | 1999-11-24 | 2001-05-29 | Toa Harbor Works Co Ltd | Settlement prevention method for underwater structure on sandy soil |
| CN101892673A (en) * | 2010-07-01 | 2010-11-24 | 宝钢工程技术集团有限公司 | Erosion protection processing method for offshore wind turbine foundation |
| CN202152454U (en) * | 2011-07-12 | 2012-02-29 | 同济大学 | Mold bag row curtain with functions of flow regulation and sand permeation |
| JP3204471U (en) * | 2016-03-16 | 2016-06-02 | 泰徳 松中 | Water flow attenuating network and wave protection device using the same |
| US20160169414A1 (en) * | 2013-06-25 | 2016-06-16 | Acergy France SAS | Foundations for Subsea Pipeline Accessories |
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| CN206495213U (en) * | 2016-10-31 | 2017-09-15 | 中国海洋石油总公司 | A kind of protection against erosion grouting bag administered for submarine pipeline suspended span |
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-
2018
- 2018-06-07 CN CN201810580788.6A patent/CN108443581A/en active Pending
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| GB9311983D0 (en) * | 1992-06-10 | 1993-07-28 | Norwegian Contractors | Method and means for production,temporary storage,towing and installation of long pipelines along the sea bottom |
| JP2001146723A (en) * | 1999-11-24 | 2001-05-29 | Toa Harbor Works Co Ltd | Settlement prevention method for underwater structure on sandy soil |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112332360A (en) * | 2020-10-30 | 2021-02-05 | 国网浙江省电力有限公司舟山供电公司 | Self-sinking type current-variable interlocking row protection device |
| CN112332360B (en) * | 2020-10-30 | 2022-04-19 | 国网浙江省电力有限公司舟山供电公司 | Self-sinking type current-variable interlocking row protection device |
| CN115434296A (en) * | 2022-09-29 | 2022-12-06 | 南通市海洋水建工程有限公司 | Construction method of anti-scour-sedimentation offshore booster station |
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