CN106585884A - Marine engineering auxiliary ship - Google Patents
Marine engineering auxiliary ship Download PDFInfo
- Publication number
- CN106585884A CN106585884A CN201610952149.9A CN201610952149A CN106585884A CN 106585884 A CN106585884 A CN 106585884A CN 201610952149 A CN201610952149 A CN 201610952149A CN 106585884 A CN106585884 A CN 106585884A
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- CN
- China
- Prior art keywords
- hull
- buoyancy tank
- telescopic
- ocean engineering
- support vessel
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B17/00—Vessels parts, details, or accessories, not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
- B63B2035/001—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for for beach loading or unloading, e.g. landing crafts
-
- B63B2710/00—
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Artificial Fish Reefs (AREA)
Abstract
The invention discloses a marine engineering auxiliary ship. The marine engineering auxiliary ship comprises a hull; the hull is provided with telescopic floating boxes; an adjusting device is arranged between the hull and each telescopic floating box; a central cylinder is arranged at the center of each telescopic floating box along an axial direction; the inner wall of each central cylinder is provided with a spiral groove; each adjusting device comprises a driving motor and a lifting driving rod; the driving motor is fixed on the hull; the lifting driving rod is in transmission connection with the output end of the driving motor; the top end of the lifting driving rod is rotatably connected with the hull; the lower section of the lifting driving rod is provided with a spiral protruding line matched with the spiral groove; the lifting driving rod is in transmission connection with the central cylinder through the matching of the spiral protruding line and the corresponding spiral groove; the stem of the hull is provided with a beaching rack; the beaching rack is connected with the stem; and the beaching rack is provided with a crawler-type retractor. According to the marine engineering auxiliary ship, the hull can berth stably. With the marine engineering auxiliary ship adopted, the efficiency and safety of external input material transfer during island reef construction can be improved, and the economical efficiency of the island reef construction can be improved.
Description
Technical field
The present invention relates to a kind of ocean engineering facility, more specifically, it relates to a kind of ocean engineering support vessel.
Background technology
At present, China's land resource growing tension, at the same time has a large amount of unmanned islands and reefs not yet to develop profit in China territorial waters
With with the fast development of China's economy and science and technology, the enough economic and technical capabilities of China support that extensive ocean is built
If, therefore, ocean is marched, want space to can yet be regarded as a kind of feasible means of the current Land of solution China to ocean, currently
There are many coastal cities to carry out marine reclamation land and the exploitation of offshore athermal effect etc. and widen outside city to set.In addition, China's marine territory
Safety problem also can not be ignored, and periphery minority sea neighbouring country has long-term islands and reefs and marine site ownership controversial issue with China, is to safeguard me
The intrinsic territory of state and marine site, safeguard legal maritime rights and interests, and China has taken proper and necessary means and carried out extensive island
Reef land-based area hydraulic reclamation and follow-up Facilities Construction, are also required to continually strengthen China's ocean engineering constructive ability from now on, preferably to tackle
Following situation development.Need to use substantial amounts of ocean engineering support vessel when islands and reefs development ＆ construction are carried out, and put into a large amount of islands
Upper workmen and equipment.Many islands and reefs are under native state and are unfavorable for construction, and the periphery of such as islands and reefs main body has big face
The long-pending reef disk for submerging under water, water is very shallow on reef disk, and ordinary ships cannot tide over reef disk near islands and reefs main body, on first stage of construction island
Also it is not available for the deepwater wharf moored a boat, construction goods and materials to first pass through freighter and be transported near islands and reefs at deep water in reef main body,
Lightered by light-draft canoe again, and canoe often highly differs greatly with freighter, canoe is also poor in water stability, because
This handling transfer goods and materials be inconvenient, risk is also higher, goods and materials lift when operation must be careful as, it is light and slow, otherwise easily because
Operation sight line is not good, canoe loading end is limited, rocking tendency is big and cause injury to personnel, people, goods are overboard, the thing such as canoe topples
Therefore.To solve the problems, such as material safety fast transfer of the islands and reefs nearby between profundal zone and islands and reefs main body joint portion, pole is necessary pin
Transhipment facility to this special area design specialized.The patent of invention of Publication No. CN105714732A was in June 29 in 2016
Day disclose a kind of landing stage, belong to terminal facilities technical field, including the 4th cylinder, controller, pole, the first cylinder,
First support plate, the first hollow out, the first lower plate, the second water wings, the first water wings, the first bearing pin, the first Eddy propeller, scissor arms,
Second eddy current propeller, the second support plate, the second hollow out, the second bearing pin, pillar, the 3rd water wings, the second lower plate, the 3rd vortex propulsion
Device, motor, the second cylinder, the 3rd cylinder, the first flake bearing, the second flake bearing, the second riding boogie board, the second antiskid plate, first
Riding boogie board, slide rail, slide block, the first antiskid plate and pier body, install the first water wings, pier body right-hand member hinge under the pier body
The first riding boogie board of installation is connect, the first antiskid plate is installed on the first riding boogie board, upper and lower ends respectively install slide rail in the first riding boogie board.In the present invention
Riding boogie board is scalable, and can adjust the angle between riding boogie board and harbour.But it is big that the invention can not well solve islands and reefs phytal zone
The problem of the convenient transfer of material safety between craft.
The content of the invention
Existing islands and reefs engineering construction field lacks islands and reefs nearby phytal zone and the safely and efficiently transition of profundal zone joint portion
Facility, goods and materials transfer is inconvenient, to overcome this defect, the invention provides one kind phytal zone and profundal zone near islands and reefs
Joint portion plays a transition role, and safely and efficiently islands and reefs can be carried out with the ocean engineering support vessel of goods and materials transfer.
The technical scheme is that：A kind of ocean engineering support vessel, including hull, hull is provided with telescopic buoyancy tank,
Adjusting means is provided between hull and telescopic buoyancy tank, telescopic buoyancy tank central authorities are installed with vertically central tube, and central tube inwall sets
There is spiral channel, described adjusting means includes motor and lifting drive rod, and motor is fixedly arranged on hull, and lifting is driven
Lever is connected in the outfan of motor, and lifting drive rod top is rotatably connected on hull, lifts drive rod hypomere
The spiral convex line being adapted to the spiral channel is provided with, lifting drive rod and central tube pass through between spiral convex line, spiral channel
Cooperation is connected, and the fore of hull is additionally provided with and rushes beach frame, rushes beach frame and connects at the boat, rushes beach frame and is provided with crawler type traction
Device.Can change extension elongation as the telescopic buoyancy tank of hull ingredient, that is, change the displacement of volume of hull, increase hull
Suffered buoyancy, when hull gross weight is not changed in or changes limited, it is waterborne, under water that the buoyancy of increase makes hull redistribute automatically
Volume, to balance the gross weight of hull, the waterborne of hull exposes volume increase, and hull rises, and adjusts and stays in the outer profundal zone of islands and reefs
Difference in height between the cargo ship of pool, in addition, the original idea for manufacturing and designing hull is just used as movable dock, thus with larger face
Product, stationarity is also better than general canoe, therefore can better adapt to the goods of different tonnages using this ocean engineering support vessel
Wheel, construction unit can have bigger cargo ship to arrange leeway when goods and materials are built in conveying, and without the need for poor with the scale of construction of canoe because considering
And limited in the selection of cargo ship size.During transfer goods and materials, because hull area and bearing capacity are bigger, can disposably connect
Can stack by more goods and materials and temporarily, then continue to be shifted on islands and reefs profundal zone and the interval canoe for shuttling of shallow water, reduce goods
The residence time of wheel, can not only improve goods and materials transfer tasks efficiency and safety, can also improve economy.Telescopic buoyancy tank is stretched
Contracting drives lifting drive rod to rotate by adjusting means realization, when motor works, and lifts drive rod and central tube helicla flute
Screw between road is converted into the axial movement of telescopic buoyancy tank, realizes the telescopic adjustment of telescopic buoyancy tank, makes suffered by hull
Buoyancy changes, and then changes the waterborne of hull and expose volume, makes that the podium level between hull height and cargo ship is poor preferably to be matched.
Hull directly can not be rushed to islands and reefs shoal by ordinary ships, otherwise can be caused between beaching, and ship and islands and reefs shoal
Impact can damage hull.It is for islands and reefs shoal on substitute vessel primary drying that beach frame is rushed in setting, it is to avoid hull directly connects with islands and reefs shoal
Touch, collide, have and rush beach frame, the crawler type traction apparatuss rushed on the frame of beach can come in contact prior to hull with islands and reefs shoal, and draw
Hull continues near islands and reefs shoal, and then rushing beach frame can fix with the piling of islands and reefs shoal, make this ocean engineering support vessel reliably
Berth, reduce drift, so as to more steadily, safely carry out goods and materials or redundant labor transfer.
Preferably, rush beach frame being hinged on hull, hull is provided with telescopic hydraulic strut, rushes beach frame and supports with hydraulic pressure
The piston rod of bar is hinged.By the flexible of hydraulic strut, can will rush beach frame and force down appropriate depth, be easy to preferably make crawler type
Traction apparatuss contact and produce enough pull strengths with islands and reefs shoal.
Preferably, crawler type traction apparatuss are hinged on rushing on the frame of beach.Due to adopting articulated manner, the contact of crawler type traction apparatuss
To islands and reefs shoal be can voluntarily adjustment angle, better adapt to islands and reefs shoal surface relief situation, so as to islands and reefs shoal earth's surface
Preferably match, reduce the loss of pull strength.
Preferably, hull bottom is provided with lifting hoistway, telescopic buoyancy tank is slidably connected in lifting hoistway, lifts hoistway
Movable sealing structure is provided between inwall and telescopic buoyancy tank outer wall.By this structure setting, telescopic buoyancy tank and hull are capable of achieving
Connection and Telescopic realization, and guarantee will not seepage between telescopic buoyancy tank and hull.
Preferably, lifting hoistway, the cross section of telescopic buoyancy tank are rectangle.Cross section is the lifting hoistway pair of rectangle
Nested telescopic buoyancy tank therein has guide effect, can prevent to rotate, it is ensured that spiral shell between lifting drive rod and central tube
Revolve pair axially retains compression, so as to produce axial thrust, realizes screw to the conversion of axial movement.
Preferably, telescopic buoyancy tank is multiple and symmetrical.Arranging multiple buoyancy tanks can be grasped respectively as needed
Make, obtain different buoyancy adjustment compound modes, better adapt to different operating modes.Symmetrical this hull that is more conducive to of buoyancy tank keeps
Balance.
Preferably, hull is provided with boom hoisting.Hull area is larger, has enough conditions to install boom hoisting, with profit
Goods and materials handling operation is more efficiently carried out in more convenient.
Preferably, hull is provided with ships and light boats berth.Hull is that most at last the phytal zone of the upper islands and reefs of goods and materials transport shuttles little
Ship provides berth, and the canoe that enables manually to shuttle stablizes berthing, hull from the cargo ship of profundal zone receive after goods and materials can safely, standard
Really, efficiently it is transferred on shuttle canoe.
The invention has the beneficial effects as follows：
Improve the efficiency of outside input goods and materials transfer and safety in islands and reefs process of construction.The present invention can pass through telescopic buoyancy tank
The waterborne of operation change hull exposes volume, adjusts and stays the difference in height between the cargo ship of pool in the outer profundal zone of islands and reefs, improves goods and materials
Transfer tasks efficiency and safety.
Improve the economy that islands and reefs are built.The cargo ship of different tonnages can be better adapted to this ocean engineering support vessel,
Construction unit can have bigger cargo ship to arrange leeway when goods and materials are built in conveying, and without the need for because consider the scale of construction difference with canoe and
Limit in the selection of cargo ship size, the residence time of cargo ship can have been reduced when shifting goods and materials, improved the economy that islands and reefs are built.
Improve hull to berth stability.The present invention can be fixed by rushing beach frame on islands and reefs shoal, fixed effect
It is more more reliable than traditional anchored mode.
Description of the drawings
Fig. 1 is a kind of structural representation of the present invention；
Fig. 2 is the overlooking the structure diagram of the present invention；
Fig. 3 is a kind of structural representation of adjusting means in the present invention.
In figure, 1- hulls, the telescopic buoyancy tanks of 2-, 3- central tubes, 4- motors, 5- lifting drive rods, 6- lifting hoistways,
7- ships and light boats berth, 8- rushes beach frame, 9- crawler type traction apparatuss, 10- hydraulic struts.
Specific embodiment
Below in conjunction with the accompanying drawings the invention will be further described for specific embodiment.
Embodiment 1：
As shown in Figure 1, Figure 2, Figure 3 shows, a kind of ocean engineering support vessel, including hull 1, hull 1 is provided with telescopic buoyancy tank 2, ship
Adjusting means is provided between body 1 and telescopic buoyancy tank 2, the central authorities of telescopic buoyancy tank 2 are installed with vertically central tube 3, the inwall of central tube 3
Spiral channel is provided with, described adjusting means includes motor 4 and lifting drive rod 5, and motor 4 is fixedly arranged on hull 1,
Lifting drive rod 5 is connected in the outfan of motor 4, and lifting drive rod 5 top is rotatably connected on hull 1, is lifted
The hypomere of drive rod 5 is provided with the spiral convex line being adapted to the spiral channel, lifting drive rod 5 and central tube 3 by spiral convex line,
Cooperation between spiral channel is connected, and the fore of hull 1 is additionally provided with and rushes beach frame 8, rushes beach frame 8 and connects at the boat, rushes beach frame 8
Four crawler type traction apparatuss 9 are provided with, crawler type traction apparatuss 9 include traction apparatuss motor, crawler belt, parallel axles, power wheel, traction
Device motor output power drives power wheel, power wheel to drive crawler belt, and traction apparatuss motor seal is in headstock.Rush beach frame 8 to be hinged
On hull 1, hull 1 is provided with telescopic hydraulic strut 10, and the working media in hydraulic strut 10 produces pressure by oil pump
Power, rushes beach frame 8 and is hinged with the piston rod of hydraulic strut 10.Crawler type traction apparatuss 9 are hinged on and rush on beach frame 8.Lifting drive rod 5 bottom
Portion is hanging in lifting hoistway 6.The outer wall of telescopic buoyancy tank 2 is coated with corrosion-resistant hydrophobic coat.Telescopic buoyancy tank 2 be ten and
It is symmetrical in the long axis both sides of hull 1.The edge of hull 1 is provided with the ships and light boats berth 7 of concave type, is provided with small-sized by ships and light boats berth 7
Straddle truck, for loading and unloading goods and materials for shuttle canoe.In addition other positions also are provided with arm on hull 1, for aiding in big ship to load and unload
Goods and materials.
This ocean engineering support vessel can be used for the exploitation of islands and reefs as the transition facility between islands and reefs phytal zone and profundal zone
Build, in islands and reefs first stage of construction, logistics, the effect of artificial abortion's transfer platform are provided in the case that facilities and equipment is not complete so that island
Goods and materials in reef process of construction, personnel log in more convenient, safety.When goods and materials, redundant labor transfer is carried out, this ocean engineering auxiliary
The fore of ship can continue to drive into against islands and reefs shoal, and crawler type traction apparatuss 9 are matched with islands and reefs shoal earth's surface, and by hydraulic strut
10 support produces enough thrusts so that crawler type traction apparatuss 9 possess good earth-catching property, can produce compared with large traction, match somebody with somebody
Closing self-propelled device this ocean engineering of the powered support vessel of hull 1 can to a certain extent go deep into islands and reefs shoal, then by beating
The fixed mode of stake will be rushed beach frame 8 and is fixed on islands and reefs shoal, and fixed effect is more more reliable than traditional anchored mode, so that this
Ocean engineering support vessel firmly and is smoothly docked in shallow water area edge, is easy to deliver the larger vessels of goods and materials or personnel near this
Hull carries out goods and materials or redundant labor transfer.It is situated between by rushing beach frame 8 and completing to be closed by after hull 1 is fixed to provide hydraulic strut 10 and work
The oil pump of matter pressure.If big ship is poor with the podium level of this hull excessive, when pedestrian, goods transfer are entered in inconvenience, can be by flexible
The flexible adjustment of formula buoyancy tank 2 changes the waterborne of this hull and exposes volume, reaches the purpose for reducing podium level difference.Adjustment is telescopic
During buoyancy tank 2, start motor 3, motor 3 drives and drives elevating lever 5 to rotate, and drives the phase between elevating lever 5 and central tube 3
Effect is mutually screwed so that central tube 3 is promoted, telescopic buoyancy tank 2 is moved with central tube 3, realizes stretching for telescopic buoyancy tank 2
Contracting is adjusted, and changes buoyancy suffered by hull 1, and then change the waterborne of hull 1 exposes volume, makes the platform between hull 1 and big ship
Difference in height is preferably matched.After due to closing oil pump, the rigid support that hydraulic strut 10 is relieved between beach frame 8 and hull 1 is rushed, one
Determining overall floating of hull 1 in degree will not receive to rush constraining for beach frame 8.The freeboard of hull 1 can be according to the need of the amplitude of accommodation
Determine to carry out telescopic adjustment to fully or partially telescopic buoyancy tank 2, but need to operate in couples, it is ensured that hull balance.Adjusting
In adjusting range, the extension elongation of telescopic buoyancy tank 2 can also as needed depending on, the decelerator of motor 3 is worm and gear
Formula decelerator, with auto-lock function.Goods and materials, redundant labor transfer subsequently just can be carried out, the larger goods and materials of goods amount can temporarily be deposited in this
On hull, directly the shuttle canoe that people, goods serve islands and reefs is docked in ships and light boats berth 7, three faces are fixed, it is ensured that shuttle canoe is put down
Surely berth, people then on this hull, goods can continue to be shifted on shuttle canoe.So, big ship and this hull, shuttle canoe with
People or transfer between this hull can independently be carried out, and big ship unloads perfect person, goods and can leave away in advance, and on remaining people, goods
The work of islands and reefs can proceed with.Using this mode of operation, ship carrying object money of passing by one's way, personnel can be made full use of to transport in passing
Send, and special vessel special trip need not be sent to transport, can more flexible, higher frequency ground enforcement islands and reefs engineering construction goods and materials, personnel's transport
Task, greatly shortens the transport cycle, reduces shipping expense.
Embodiment 2：
Telescopic buoyancy tank 2 is 12.Remaining is with embodiment 1.
Claims (8)
1. a kind of ocean engineering support vessel, including hull（1）, it is characterized in that hull（1）It is provided with telescopic buoyancy tank（2）, hull
（1）With telescopic buoyancy tank（2）Between be provided with adjusting means, telescopic buoyancy tank（2）Central authorities are installed with vertically central tube（3）, center
Cylinder（3）Inwall is provided with spiral channel, and described adjusting means includes motor（4）With lifting drive rod（5）, motor
（4）It is fixedly arranged on hull（1）On, lift drive rod（5）It is connected in motor（4）Outfan, lift drive rod（5）Top
End is rotatably connected on hull（1）On, lift drive rod（5）Hypomere is provided with the spiral convex line being adapted to the spiral channel, lifting
Drive rod（5）With central tube（3）It is connected by the cooperation between spiral convex line, spiral channel, hull（1）Fore be additionally provided with
Rush beach frame（8）, rush beach frame（8）Connection at the boat, rushes beach frame（8）It is provided with crawler type traction apparatuss（9）.
2. ocean engineering support vessel according to claim 1, is characterized in that rushing beach frame（8）It is hinged on hull（1）On, hull
（1）It is provided with telescopic hydraulic strut（10）, rush beach frame（8）With hydraulic strut（10）Piston rod be hinged.
3. ocean engineering support vessel according to claim 1, is characterized in that crawler type traction apparatuss（9）It is hinged on and rushes beach frame
（8）On.
4. ocean engineering support vessel according to claim 1, is characterized in that hull（1）Bottom is provided with lifting hoistway（6）, stretch
Contracting formula buoyancy tank（2）It is slidably connected at lifting hoistway（6）In, lift hoistway（6）Inwall and telescopic buoyancy tank（2）It is provided between outer wall dynamic
Sealing structure.
5. ocean engineering support vessel according to claim 4, is characterized in that lifting hoistway（6）, telescopic buoyancy tank（2）Horizontal stroke
Section is rectangle.
6. ocean engineering support vessel according to claim 1, is characterized in that telescopic buoyancy tank（2）For multiple and symmetrical points
Cloth.
7. ocean engineering support vessel according to claim 1, is characterized in that hull（1）It is provided with boom hoisting.
8. ocean engineering support vessel according to any one of claim 1 to 7, is characterized in that hull（1）It is provided with ships and light boats
Berth（7）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610952149.9A CN106585884B (en) | 2016-11-02 | 2016-11-02 | A kind of ocean engineering support vessel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610952149.9A CN106585884B (en) | 2016-11-02 | 2016-11-02 | A kind of ocean engineering support vessel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106585884A true CN106585884A (en) | 2017-04-26 |
| CN106585884B CN106585884B (en) | 2019-03-05 |
Family
ID=58590253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201610952149.9A Active CN106585884B (en) | 2016-11-02 | 2016-11-02 | A kind of ocean engineering support vessel |
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| Country | Link |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201254268Y (en) * | 2008-05-20 | 2009-06-10 | 周鹏 | Water surface platform capable of arbitrary up-down |
| DE102010026711A1 (en) * | 2010-03-30 | 2011-10-06 | Werner Möbius Engineering GmbH | Semi-submersible for transport or carrying out work at sea, has pontoon arrangement with chamber, which is equipped with units to flood and to pump out chamber selectively partially or totally |
| CN203345167U (en) * | 2013-02-05 | 2013-12-18 | 宏华海洋油气装备（江苏）有限公司 | Movable jack-up artificial island |
| CN105539749A (en) * | 2015-12-15 | 2016-05-04 | 上海船舶研究设计院 | Liftable buoyancy tank device of semi-submersible transport ship |
| CN105544457A (en) * | 2015-12-07 | 2016-05-04 | 国家***第一海洋研究所 | Small wharf capable of automatically adapting to tide level |
-
2016
- 2016-11-02 CN CN201610952149.9A patent/CN106585884B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201254268Y (en) * | 2008-05-20 | 2009-06-10 | 周鹏 | Water surface platform capable of arbitrary up-down |
| DE102010026711A1 (en) * | 2010-03-30 | 2011-10-06 | Werner Möbius Engineering GmbH | Semi-submersible for transport or carrying out work at sea, has pontoon arrangement with chamber, which is equipped with units to flood and to pump out chamber selectively partially or totally |
| CN203345167U (en) * | 2013-02-05 | 2013-12-18 | 宏华海洋油气装备（江苏）有限公司 | Movable jack-up artificial island |
| CN105544457A (en) * | 2015-12-07 | 2016-05-04 | 国家***第一海洋研究所 | Small wharf capable of automatically adapting to tide level |
| CN105539749A (en) * | 2015-12-15 | 2016-05-04 | 上海船舶研究设计院 | Liftable buoyancy tank device of semi-submersible transport ship |
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| Publication number | Publication date |
|---|---|
| CN106585884B (en) | 2019-03-05 |
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