CN111750920B - Automatic separation type seabed base suitable for soft and inclined seabed and laying method thereof - Google Patents
Automatic separation type seabed base suitable for soft and inclined seabed and laying method thereof Download PDFInfo
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- CN111750920B CN111750920B CN202010886243.5A CN202010886243A CN111750920B CN 111750920 B CN111750920 B CN 111750920B CN 202010886243 A CN202010886243 A CN 202010886243A CN 111750920 B CN111750920 B CN 111750920B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
- B63C11/00—Equipment for dwelling or working underwater; Means for searching for underwater objects
- B63C11/52—Tools specially adapted for working underwater, not otherwise provided for
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
- G01D11/30—Supports specially adapted for an instrument; Supports specially adapted for a set of instruments
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Abstract
The invention provides an automatic separation type seabed base suitable for soft and inclined seabed and a laying method thereof, wherein the automatic separation type seabed base comprises a counterweight system and a seabed base platform, the seabed base platform comprises an upper frame and a lower frame, the lower frame is of a cubic structure, the upper half part of the lower frame is a hollow frame, the periphery of the lower half part of the lower frame is sealed with a top part by a steel plate, 8 stopping discs are arranged on four corners and side frames of the bottom part of the lower frame, pore water pressure detecting rods are fixedly arranged below the stopping discs at the four corners of the bottom part of the lower frame, the upper frame is arranged in the hollow frame at the upper half part of the lower frame and is fixed by a second trigger, a connecting rod is arranged at the center of the upper frame, the top end of the connecting rod is movably connected with the counterweight system by the first trigger, a cable is arranged in the hollow part of. Through the technical scheme of the invention, the settlement amount is reduced, the level of the carried monitoring equipment is ensured, the whole process is automatically operated, and the equipment is safely and conveniently recovered.
Description
Automatic separation type seabed base suitable for soft and inclined seabed and laying method thereof
Technical Field
The invention relates to the technical field of seabed bases, in particular to an automatic separation type seabed base suitable for soft and inclined seabed and a laying method thereof.
Background
The seabed base carries various seabed detecting instruments, is a self-contained comprehensive measuring device working on the seabed, and has important significance for the construction of ocean engineering, the dredging of navigation channels, the renovation of harbors, the safety operation on the sea and the research of ocean dynamic sedimentology. However, the bearing capacity of the soft seabed is low, so that a high requirement is provided for seabed foundations, when the seabed foundations work on the seabed, the seabed foundations are often difficult to recover due to the fact that silt is accumulated and cannot be recovered in time, meanwhile, due to the influence of terrain, the monitoring equipment cannot be guaranteed to be in a horizontal ideal state when the seabed foundations are inclined, the monitoring result is influenced, and finally, ocean data and property loss is caused.
Disclosure of Invention
In order to make up the defects of the prior art, the invention provides an automatic separation type seabed base suitable for soft and inclined seabed and a laying method thereof.
The invention is realized by the following technical scheme: an automatic separation type seabed base suitable for soft and inclined seabed comprises a counterweight system and a seabed base platform, wherein the counterweight system comprises a steel pipe, the top end of the steel pipe is provided with a lifting head, the lower part of the steel pipe is fixedly provided with a limiting ring, a counterweight plate is sleeved on the steel pipe between the lifting head and the limiting ring, and the bottom end of the steel pipe is fixedly provided with a first bearing platform;
seabed base platform includes upper portion frame and lower part frame, the lower part frame is the cube structure, the first half of lower part frame is hollow frame, the latter half of lower part frame is sealed with the steel sheet for the top all around, set up 8 on the four corners of lower part frame bottom and the frame and end the position dish, the below fixed mounting pore water pressure probe rod that ends the position dish of the four corners department of lower part frame bottom, the first half of lower part frame is arranged in and is fixed through 4 groups of second triggers in being hollow frame to the upper portion frame, the connecting rod is installed at the center of upper portion frame, the top of connecting rod is equipped with the second cushion cap, the inside cavity of connecting rod is equipped with the hawser, the floater is connected to the other end.
First cushion cap and second cushion cap are connected through first trigger, the trigger comprises two L shape triggers, the iron bar is installed on the upper portion of trigger, the iron bar hasp is on first cushion cap, the rotary rod is run through at the middle part of trigger, the rotary rod is installed on the second cushion cap, the shape of first cushion cap is circular, first cushion cap symmetry both sides are equipped with respectively with trigger width assorted recess, the upper surface middle part of recess be equipped with iron bar size assorted iron bar recess, first trigger and second trigger structure are the same. .
Preferably, two steel plates are oppositely welded on the side of the upper frame to be used as the guide plate.
Preferably, the upper frame is internally equipped with a monitoring device.
As the preferred scheme, the floating ball is internally provided with a GPS locator.
Preferably, 4 sets of second triggers are provided on the top frames of the upper and lower frames.
Preferably, the first bearing platform is smaller in size than the second bearing platform.
Preferably, the second platform is circular in shape.
Preferably, the trigger is rotated about the rotary rod by an angle of 0 ° to 90 °.
A method for distributing an automatic separation type seabed base suitable for soft and inclined seabed comprises the following specific steps:
step (1): the upper frame is arranged in the hollow frame at the upper half part of the lower frame and is connected with the lower frame through a second trigger, and monitoring equipment is carried in the inner frame of the upper frame;
step (2): the balance weight system is connected with the top of the connecting rod of the upper frame through a first trigger, the balance weight system is lifted through a winch, the balance weight system is connected with the upper frame through the first trigger, the upper frame is connected with the lower frame through a second trigger, and a pore water pressure probe rod is installed at the bottom of the lower frame of the seabed base after the whole seabed base is lifted;
and (3): the seabed base is placed at a designated position through a winch, a first trigger between the counterweight system and the upper frame is separated, the counterweight system is recovered to a deck, and a floating ball preset in a connecting rod of the upper frame floats upwards to position the seabed base;
and (4): after the monitoring is finished, the second trigger is started to separate the upper frame from the lower frame, the upper frame is connected to the upper frame through a cable connected with the floating ball, the upper frame and monitoring equipment carried by the upper frame are recovered to a deck, and the lower frame is left on the seabed.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the following beneficial effects:
1. reducing the sedimentation amount: the common seabed base is small in bottom supporting area and large in equipment weight, is only suitable for in-situ long-term monitoring on a hard seabed, and if the common seabed base is arranged on a soft seabed, the common seabed base is greatly settled due to the fact that the bearing capacity of the seabed is weak, and accuracy of monitoring data of the carried equipment is affected. The seabed base is provided with 8 stopping disks at the bottom, and the whole framework can seal a part of air and keep at the bottom of the seabed, so that excessive settlement of the seabed base is prevented, and the equipment safety and the accuracy of monitoring data are ensured.
2. Guarantee to carry on monitoring facilities level: because the common seabed base can only carry out long-term in-situ monitoring on a flat seabed, when a sloping seabed is encountered, the seabed base is inclined, and the monitoring equipment cannot be ensured to be in a horizontal state, so that the accuracy of monitoring data is influenced. When the seabed foundation meets a sloping seabed, the pore water pressure probe rods below the four corners of the seabed foundation penetrate into the seabed foundation by different depths, so that the influence of the gradient of the seabed is eliminated, the seabed foundation is in a horizontal state, and the accuracy of monitoring data is ensured.
3. The whole process is automatically operated without underwater operation of divers: the common seabed base needs to be launched by a diver in the laying and recovery processes, so that the time cost and the labor cost are high, and meanwhile, the common seabed base has certain dangerousness. The seabed base is connected with the balance weight system, the small frame carrying the monitoring equipment and the large frame preventing the seabed base from being greatly settled through the trigger structure, the trigger structure is automatically opened after the seabed base is positioned on the seabed base, the balance weight system is recovered through the winch, the seabed base is monitored for a long time on the seabed, and the positioning floating ball floats upwards to position the seabed base. After the specified monitoring task is finished, the frame carrying the equipment is recovered to the deck by a winch through the positioning floating ball cable, data reading is carried out on the monitoring equipment, and the larger frame is left on the seabed. And the whole laying and recovering process does not need a diver to launch.
4. The equipment recovery is safe and convenient: the conventional seabed foundation is likely to have large sedimentation due to long-term monitoring on the seabed, and the seabed foundation is likely to be damaged in the winch recovery process. And the seabed base only needs to recover the frame for carrying the equipment, so that the safety of the equipment is ensured.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a side view of the present invention;
FIG. 3 is a schematic view of the first trigger;
FIG. 4 is an operational view of the first trigger;
FIG. 5 is a schematic top view of the first platform;
figure 6 is a schematic view of a counterweight system,
wherein, the corresponding relationship between the reference numbers and the components in fig. 1 to fig. 6 is:
1 counter weight system, 2 seabed base platforms, 3 first triggers, 4 upper frames, 5 lower frames, 6 stopping disks, 7 pressure feeler levers, 8 second triggers, 9 mooring ropes, 10 floating balls, 11 guide plates, 1-1 steel pipes, 1-2 lifting heads, 1-3 limiting rings, 1-4 counter weight disks, 1-5 first bearing platforms, 3-1 iron bars, 3-2 rotating rods, 3-3 grooves, 3-4 iron bar grooves, 4-1 connecting rods and 4-2 second bearing platforms.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced otherwise than as specifically described herein, and thus the scope of the present invention is not limited by the specific embodiments disclosed below.
The following describes an automatic separation type seabed base suitable for a weak and inclined seabed and a laying method thereof according to an embodiment of the present invention with reference to fig. 1 to 6.
As shown in fig. 1 to 6, the invention provides an automatic separation type seabed base suitable for soft and inclined seabed, which comprises a counterweight system 1 and a seabed base platform 2, wherein as shown in fig. 5, the counterweight system 1 comprises a steel pipe 1-1, a lifting head 1-2 is arranged at the top end of the steel pipe 1-1, a limiting ring 1-3 is fixedly arranged at the lower part of the steel pipe 1-1, a counterweight disc 1-4 is sleeved on the steel pipe 1-1 between the lifting head 1-2 and the limiting ring 1-3, and a first bearing platform 1-5 is fixedly arranged at the bottom end of the steel pipe 1-1;
as shown in fig. 1 and 2, the seabed base platform 2 comprises an upper frame 4 and a lower frame 5, the lower frame 5 is a cubic structure and is used for providing support to prevent the platform from settling and laterally deviating, the upper half part of the lower frame 5 is a hollow frame, the periphery of the lower half part of the lower frame 5 is sealed with a steel plate at the top, and partial gas can be reserved in the process of lowering the seabed base by adopting the principle similar to a suction anchor to prevent the seabed base from greatly settling on a soft seabed surface. Four corners and the frame of the bottom of the lower frame 5 are provided with 8 stopping discs 6 to prevent the seabed from generating large settlement. Pore water pressure detecting rods 7 are fixedly arranged below the stopping disks 6 at the four corners of the bottom of the lower frame 5, so that the lateral displacement is prevented when the seabed base cloth is placed on the seabed, and the pore water pressure is monitored. On the inclined seabed, the whole seabed base can be controlled to be in a horizontal position through the difference of the penetration depth of the 7 pore water pressure probe rods 7 into the seabed. The upper frame 4 is arranged in a hollow frame of the upper half part of the lower frame 5 and is fixed by 4 groups of second triggers 8, and a monitoring instrument is carried in the upper frame 4. The center of the upper frame 4 is provided with a connecting rod 4-1, the top end of the connecting rod 4-1 is provided with a second bearing platform 4-2, a certain stroke is set, the connection is provided between the counterweight system 1 and the upper frame 4 in the process of laying the seabed base, the first trigger 3 is automatically opened after the seabed base is laid on the seabed, the working process is as shown in figure 4, the counterweight system 1 is separated from the seabed base platform 2, the counterweight system 1 is recovered to a deck, and the platform is laid on the seabed for monitoring. The connecting rod 4-1 is hollow and is provided with a cable 9, the other end of the cable 9 is connected with a floating ball 10, a GPS positioner is arranged in the floating ball 10, and the seabed base platform 2 can be positioned through the floating ball 10 after the platform is laid on the seabed. Two steel plates are oppositely welded on the side of the upper frame 4 to be used as a guide plate 11, so that the seabed base is prevented from rotating in the distribution process. 4 sets of second triggers 8 are provided on the top frames of the upper and lower frames 4, 5, and after completion of the monitoring task, the upper and lower frames 4, 5 are automatically disengaged by the second triggers 8, the lower frame 5 is left on the seabed, and the upper frame 4 is retrieved together with the instruments carried thereon.
As shown in fig. 3 to 5, a first bearing platform 1-5 and a second bearing platform 4-2 are connected through a first trigger 3, the first trigger 3 is composed of two L-shaped triggers, an iron bar 3-1 is installed on the upper portion of the first trigger 3, the iron bar 3-1 is buckled on the first bearing platform 1-5, the middle portion of the first trigger 3 penetrates through a rotating rod 3-2, the rotating rod 3-2 is installed on the second bearing platform 4-2, the first bearing platform 1-5 is circular, grooves 3-3 matched with the width of the trigger 3 are respectively arranged on two symmetrical sides of the first bearing platform 1-5, iron bar grooves 3-4 matched with the size of the iron bar 3-1 are arranged in the middle of the upper surface of the grooves 3-3, and the first trigger 3 and the second trigger 8 are identical in structure. The first bearing platform 1-5 is smaller than the second bearing platform 4-2 in size. The second bearing platform 4-2 is circular in shape. The first trigger 3 is rotated about the rotary rod 3-3 by an angle of 0 to 90.
A method for distributing an automatic separation type seabed base suitable for soft and inclined seabed comprises the following specific steps:
step (1): the upper frame 4 is arranged in a hollow frame at the upper half part of the lower frame 5, the upper frame and the lower frame are connected through a second trigger 8, and monitoring equipment is carried in the inner frame of the upper frame 4;
step (2): the counterweight system 1 is connected with the top of a connecting rod 4-1 of an upper frame 4 through a first trigger 3, the counterweight system 1 is lifted through a winch, the counterweight system 1 is connected with the upper frame 4 through the first trigger 3, the upper frame 4 is connected with a lower frame 5 through a second trigger 8, and a pore water pressure probe 7 is installed at the bottom of the lower frame 5 of the seabed base after the whole seabed base is lifted;
and (3): the seabed base is laid at a designated position through a winch, the first trigger 3 between the counterweight system 1 and the upper frame 4 is separated, the working process is shown in figure 4, the counterweight system 1 is recovered to a deck, and a floating ball 10 in a connecting rod 4-1 of the upper frame 4 is floated to position the seabed base;
and (4): after the monitoring is completed, the second trigger 8 is opened to separate the upper frame 4 and the lower frame 5, the upper frame 4 is connected to the upper frame 4 through the cable 9 connected with the floating ball 10, the upper frame 4 and the monitoring equipment carried by the upper frame are recovered to a deck, and the lower frame 5 is left on the seabed.
As shown in FIG. 4, the whole trigger structure works in the following manner, the counterweight system 1 is connected with the seabed base platform 2 through the first trigger 3 to lift the whole device, and the iron bar 3-1 in the first trigger 3 is buckled in the groove of the first bearing platform 1-5 of the counterweight system 1 to realize the structural connection. When the whole device is arranged at a specified position, the first trigger 3 can rotate around the rotating rod 3-2 under the action of gravity, so that the trigger structure can be automatically opened. Finally the trigger is fully opened and the separation of the counterweight system 1 and the seabed base platform 2 is achieved.
In the description of the present invention, the terms "plurality" or "a plurality" refer to two or more, and unless otherwise specifically limited, the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention; the terms "connected," "mounted," "secured," and the like are to be construed broadly and include, for example, fixed connections, removable connections, or integral connections; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. An automatic separation type seabed base suitable for a weak and inclined seabed comprises a counterweight system (1) and a seabed base platform (2), and is characterized in that the counterweight system (1) comprises a steel pipe (1-1), a lifting head (1-2) is installed at the top end of the steel pipe (1-1), a limiting ring (1-3) is fixedly installed at the lower part of the steel pipe (1-1), a counterweight plate (1-4) is sleeved on the steel pipe (1-1) between the lifting head (1-2) and the limiting ring (1-3), and a first bearing platform (1-5) is fixedly installed at the bottom end of the steel pipe (1-1);
the seabed base platform (2) comprises an upper frame (4) and a lower frame (5), the lower frame (5) is of a cubic structure, the upper half part of the lower frame (5) is a hollow frame, the periphery of the lower half part of the lower frame (5) is sealed with a steel plate at the top, 8 stopping disks (6) are arranged on four corners and frames at the bottom of the lower frame (5), pore water pressure detecting rods (7) are fixedly arranged below the stopping disks (6) at the four corners at the bottom of the lower frame (5), the upper frame (4) is arranged in the hollow frame at the upper half part of the lower frame (5) and is fixed through 4 groups of second triggers (8), a connecting rod (4-1) is arranged at the center of the upper frame (4), a second bearing platform (4-2) is arranged at the top end of the connecting rod (4-1), a cable (9) is arranged in the hollow connecting rod (4-1), the other end of the cable (9) is connected with a floating ball (10);
first cushion cap (1-5) and second cushion cap (4-2) are connected through first trigger (3), first trigger (3) comprise two L shape triggers, iron bar (3-1) is installed on the upper portion of first trigger (3), iron bar (3-1) is taken on first cushion cap (1-5), the middle part of first trigger (3) runs through rotary rod (3-2), rotary rod (3-2) are installed on second cushion cap (4-2), the shape of first cushion cap (1-5) is circular, first cushion cap (1-5) symmetry both sides are equipped with respectively with first trigger (3) width assorted recess (3-3), the upper surface middle part of recess (3-3) is equipped with iron bar recess (3-4) with iron bar (3-1) size assorted, first trigger (3) and second trigger (8) structure are the same.
2. The self-separating seabed foundation as claimed in claim 1, wherein two steel plates are oppositely welded at the side of the upper frame (4) as the deflector (11).
3. An automatically separating seabed base for soft and inclined seabed as claimed in claim 1, wherein the upper frame (4) is internally equipped with monitoring instrument.
4. The self-separating seabed base for soft and inclined seabed as claimed in claim 1, wherein the floating ball (10) is internally provided with a GPS locator.
5. An autosegregation seabed base for soft and inclined seabed as claimed in claim 1, wherein, the 4 sets of second triggers (8) are arranged on the top frame of the upper frame (4) and the lower frame (5).
6. An automatically separating seabed base for soft and inclined seabed, as claimed in claim 1, wherein the first bearing platform (1-5) is smaller in size than the second bearing platform (4-2).
7. An automatically separating seabed base for soft and inclined seabed, as claimed in claim 1, wherein the second bearing platform (4-2) is circular in shape.
8. An automatic separating seabed base for soft and inclined seabed as claimed in claim 1, wherein the first trigger (3) is rotated about the rotating rod (3-2) by an angle of 0 ° to 90 °.
9. The method for laying an automatically separating seabed base suitable for soft and inclined seabed as claimed in any one of claims 1 to 8, wherein the method comprises the following steps:
step (1): the upper frame (4) is arranged in a hollow frame at the upper half part of the lower frame (5), the upper frame and the lower frame are connected through a second trigger (8), and monitoring equipment is carried in the inner frame of the upper frame (4);
step (2): the balance weight system (1) is connected with the top of a connecting rod (4-1) of the upper frame (4) through a first trigger (3), the balance weight system (1) is lifted through a winch, the balance weight system (1) is connected with the upper frame (4) through the first trigger (3), the upper frame (4) is connected with the lower frame (5) through a second trigger (8), and a pore water pressure probe rod (7) is installed at the bottom of the lower frame (5) of the seabed base after the whole seabed base is lifted;
and (3): the seabed base is placed at a designated position through a winch, a first trigger (3) between a counterweight system (1) and an upper frame (4) is separated, the counterweight system (1) is recovered to a deck, and a floating ball (10) preset in a connecting rod (4-1) of the upper frame (4) floats upwards to position the seabed base;
and (4): after the monitoring is finished, a second trigger (8) is started to separate the upper frame (4) and the lower frame (5), the upper frame (4) is connected to the upper frame (4) through a cable (9) connected with the floating ball (10), the upper frame (4) and monitoring equipment carried by the upper frame are recovered to a deck, and the lower frame (5) is left on the seabed.
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CN202010511541.6A CN111595371A (en) | 2020-06-08 | 2020-06-08 | Automatic separation type seabed base suitable for soft and inclined seabed and laying method thereof |
CN2020105115416 | 2020-06-08 |
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CN112325859B (en) * | 2020-11-02 | 2024-02-27 | 广东海洋大学 | Floating type seabed base |
CN112523252B (en) * | 2020-11-18 | 2021-09-07 | 河海大学 | Recyclable seabed anti-sinking plate suitable for uneven seabed and installation and use method |
CN114336092B (en) * | 2022-01-24 | 2022-12-09 | 山西汾西重工有限责任公司 | Underwater power-on mechanism |
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CN109278962A (en) * | 2018-10-24 | 2019-01-29 | 中国海洋大学 | A kind of cable-free type sea bed observation platform deep suitable for full sea |
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DE69310378T2 (en) * | 1992-10-09 | 1997-10-23 | Torger Skarnes Tveter | WAVE ENERGY DEVICE WITH BUOY |
CN104369838B (en) * | 2013-08-16 | 2017-02-08 | 中国科学院海洋研究所 | Self-elevating connected submersible buoy measuring system |
CN208459327U (en) * | 2018-07-31 | 2019-02-01 | 国家***第一海洋研究所 | The fixed point continuous measuring device in situ of seabed sediment acoustics property and temperature profile |
CN208887631U (en) * | 2018-11-19 | 2019-05-21 | 广东海洋大学 | A kind of de- silt preventing seabed base of New type rotary formula |
CN109596108B (en) * | 2018-11-19 | 2023-11-10 | 广东海洋大学 | Novel rotary desilting seabed base |
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CN109278962A (en) * | 2018-10-24 | 2019-01-29 | 中国海洋大学 | A kind of cable-free type sea bed observation platform deep suitable for full sea |
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