CN208397435U - A kind of submarine pipeline fills sandbag basis and floats curtain group scour protection device - Google Patents
A kind of submarine pipeline fills sandbag basis and floats curtain group scour protection device Download PDFInfo
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- CN208397435U CN208397435U CN201820883184.4U CN201820883184U CN208397435U CN 208397435 U CN208397435 U CN 208397435U CN 201820883184 U CN201820883184 U CN 201820883184U CN 208397435 U CN208397435 U CN 208397435U
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Abstract
The utility model 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 scour protection device, which should have the characteristics that structure is simple, be easy to underwater construction, is low in cost, protecting effect 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 scour protection device, it is characterised in that: the device includes the floating curtain group for filling sandbag basis and being arranged on the basis of filling sandbag；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 filling ballast is husky inside bag body, 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 the cord that bottom edge is fixed with the top middle line for filling sandbag basis and the floating body being arranged at the top of cord.
Description
Technical field
The utility model relates to a kind of submarine pipeline scour protection devices more particularly to a kind of utilization to fill based on sandbag
Floating curtain group submarine pipeline scour protection device.
Background technique
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 will affect the dynamic equilibrium of submarine pipeline sea area sea bed Yu seabed trend, cause the seabed scouring of pipeline sea area 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 is lost 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.
Means of defence common for submarine pipeline has underwater dumped rockfill, sand hill heap base, concrete mattress pad, Artificial grass 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, will cause and 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, 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.
Utility model content
The purpose of the utility model is to overcome the deficiency in above-mentioned background technique, a kind of submarine pipeline is provided and fills sandbag basis
Floating curtain group scour protection device, the device should have that structure is simple, is easy to underwater construction, is low in cost, the spy that protecting effect is good
Point is applicable to various sea beds and flow condition.
The technical solution of the utility model is:
A kind of submarine pipeline fills sandbag basis and floats curtain group scour protection device, it is characterised in that: the device includes filling sandbag
Basis and the floating curtain group being arranged on the basis of filling sandbag；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 filling ballast is husky inside bag body, 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
The cord fixed including bottom edge with the top middle line for filling sandbag basis and the floating body being arranged at the top of cord.
Be divided into inside the bag body it is several fill Sha Cang, these fill husky storehouse along fill sandbag basis length direction arrange and
Independently of each other.
The top for each filling husky storehouse is arranged at least one and fills 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 utility model are:
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 protection 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 naturally in water and can put with water flow as the deceleration erosion control for reducing bottom ocean current flow velocity, cord
It moves, it is out-of-date by stopping to stream at the top of cord and in gap that water flows through, so that flow rate of water flow reduction nearby, mud easy to form
Sand siltation has played water conservancy diversion and has promoted the effect become silted up；The present apparatus solve in existing guard technology difficulty of construction is big, it is costly, protection
The problem of effect difference improves the economics and reliability of marine pipeline protection method.
Detailed description of the invention
Fig. 1 is the schematic perspective view of the utility model.
Fig. 2 is the schematic view of the front view of the utility model.
Fig. 3 is the overlooking structure diagram of the utility model.
Fig. 4 is the embodiments of the present invention schematic diagram.
Specific embodiment
Below in conjunction with Figure of description, the utility model is described in further detail, but the utility model be not limited to
Lower embodiment.
As shown in Figure 1, a kind of submarine pipeline fill sandbag basis float curtain group 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 filling ballast is husky (silt) inside bag body.
Inside the bag body setting 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 exudation, silt, which stays in inside bag body, 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 filling ballast sand inside bag body 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 scope 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.
The bag body for filling sandbag basis is by being pre-designed, and the cross section of bag body is in isosceles triangle after overcharging sand,
Top is that the fluoran stream surface angle with horizontal plane of big obtuse angle and two sides is small acute angle, can reduce the resistance of bottom ocean current；As ocean current V
By downward directed force F (shown in Fig. 4) can be generated 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 to protection adjacent edges seabed soil disturbance and scour.
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, it not will lead to sea bed stress and 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 middle 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 is also possible to floating ball.The width of the cord is 3-8m and height is 1-5m.The cord is by high-intensitive, 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 to control the flow-disturbing recirculating zone at cord rear without departing from the fluoran stream surface for filling sandbag basis top
Region.
This protective device needs then to transport to scene in factory's pre-production (having spliced bag body and floating curtain group) and applied
Work, concrete construction method are as follows: bag body is laid in the top of submarine pipeline 9, and floating body is carried out with 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 expansion after floating.
Claims (6)
1. a kind of submarine pipeline, which fills sandbag basis, floats curtain group scour protection device, it is characterised in that: the device includes filling sandbag base
Plinth and the floating curtain group being arranged on the basis of filling sandbag；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 filling ballast is husky inside bag body, 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 the cord (2) that bottom edge is fixed with the top middle line for filling sandbag basis and the floating body (3) being arranged at the top of cord.
2. submarine pipeline according to claim 1, which fills sandbag basis, floats curtain group scour protection device, it is characterised in that: described
Be divided into inside bag body it is several fill Sha Cang, these fill husky storehouse and arrange along the length direction for filling sandbag basis and mutually indepedent.
3. submarine pipeline according to claim 2, which fills sandbag basis, floats curtain group scour protection device, it is characterised in that: described
The top for each filling husky storehouse is arranged at least one and fills 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 scour protection device, it is characterised in that: 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 scour protection device, it is characterised in that: 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 scour protection device, it is characterised in that: described
Floating body is floating drum or floating ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820883184.4U CN208397435U (en) | 2018-06-07 | 2018-06-07 | A kind of submarine pipeline fills sandbag basis and floats curtain group scour protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820883184.4U CN208397435U (en) | 2018-06-07 | 2018-06-07 | A kind of submarine pipeline fills sandbag basis and floats curtain group scour protection device |
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| Publication Number | Publication Date |
|---|---|
| CN208397435U true CN208397435U (en) | 2019-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820883184.4U Active CN208397435U (en) | 2018-06-07 | 2018-06-07 | A kind of submarine pipeline fills sandbag basis and floats curtain group scour protection device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108443581A (en) * | 2018-06-07 | 2018-08-24 | 浙江省水利河口研究院 | A kind of submarine pipeline fills sandbag basis and floats curtain group's scour protection device |
| CN111691469A (en) * | 2020-04-20 | 2020-09-22 | 浙江大学 | Expanded underwater protection structure and deployment and detection method |
-
2018
- 2018-06-07 CN CN201820883184.4U patent/CN208397435U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108443581A (en) * | 2018-06-07 | 2018-08-24 | 浙江省水利河口研究院 | A kind of submarine pipeline fills sandbag basis and floats curtain group's scour protection device |
| CN111691469A (en) * | 2020-04-20 | 2020-09-22 | 浙江大学 | Expanded underwater protection structure and deployment and detection method |
| CN111691469B (en) * | 2020-04-20 | 2021-11-23 | 浙江大学 | Expanded underwater protection structure and deployment and detection method |
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