Device and method for measuring subsidence of marine base equipment

A measurement device and settlement technology, applied in measurement devices, height/level measurement, surveying and navigation, etc., can solve the problems of inability to distinguish between self-weight settlement and erosion settlement, inability to distinguish settlement, and no device support, etc. The monitoring method is clear, the structure is simple, and the design is reasonable.

Active Publication Date: 2020-04-10
OCEAN UNIV OF CHINA
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  • Application Information

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Problems solved by technology

However, in the existing technology, the subsidence changes retrieved by water depth data will be affected by waves and tides, and the erosion and deposition of sediments and the self-weight settlement of the device itself will be indistinguishable. Therefore, the acquired subsidence data is only a set, which cannot be better Differentiate the amount of sedimentation
At present, some studies have proposed a differential calculation method of seabed foundation settlement based on base station water level observation (patent number: 201710831894.2), but the calculation of this method is cumbersome and there is no device support, and it is impossible to distinguish the self-weight settlement and erosion settlement of the equipment

Method used

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  • Device and method for measuring subsidence of marine base equipment
  • Device and method for measuring subsidence of marine base equipment
  • Device and method for measuring subsidence of marine base equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] like figure 1 As shown, the measurement device includes a hollow double-layer electrode natural potential probe rod and a collection device, and the hollow double-layer electrode natural potential probe rod includes a hollow rod body 1 and a double-layer ring electrode 2 . Ring electrodes 2 are evenly spaced on the outer and inner surfaces of the hollow rod body 1, and the ring electrodes 2 are all-solid maintenance-free reference electrodes with strong stability.

[0027] The all-solid-state maintenance-free reference electrode is made of titanium alloy as the skeleton, and the surface is uniformly coated with graphene with a thickness of 0.1-1mm. After coating, it is placed in an oven at 150°C for 30 minutes. There is no need to supply power to the electrode during use, and the working time of the device is not affected by the battery or external power supply, which effectively reduces the failure probability of the device and reduces the frequency of maintenance.

...

Embodiment 2

[0038] The difference between this embodiment and Embodiment 1 is that a part of the top cover is fixed and the other part is movable. The position of the top cover is raised, higher than the junction of the wire and the hollow rod body, and the other end of the wire needs to protrude from the hole in the top cover 6, and then all the wires are gathered and wrapped together to connect to the collection cabin 5.

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Abstract

The invention belongs to the field of ocean base equipment settlement measuring technologies and relates to an ocean base equipment settlement measuring device and method. Designed monitoring equipment can effectively monitor the settlement of ocean base equipment and can effectively distinguish self-weight settlement of the equipment from a displacement change caused by erosion sedimentation. Themeasuring device and method have quite important significance for understanding of the equipment settlement process, safety control of ocean engineering and accuracy judgment on seabed monitoring equipment data. An electrode in use is a solid annular reference electrode with high stability, and power supply to the electrode is not needed. A feeler lever is simple in structure and reasonable in design and can be matched with the ocean base equipment in use. The monitoring method is clear, and monitoring precision is high.

Description

technical field [0001] The invention belongs to the technical field of subsidence measurement of marine base equipment, and relates to a device and method for measuring the subsidence of marine base equipment. Background technique [0002] There are abundant resources in the ocean. As the demand for ocean exploration increases, some large-scale ocean observation devices are placed on the seabed. settlement. This settlement phenomenon will not only affect the stability of the observation equipment, but also affect the accuracy of the measurement results. [0003] At present, some existing large-scale marine bottom equipment are equipped with depth monitoring and attitude monitors, and the shape of the bottom equipment is corrected in real time through acoustic communication equipment. The seawater pressure above the seabed interface, that is, the height difference between the seabed interface and the sea surface, is used to reflect the settlement change of the marine bottom...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C5/00
CPCG01C5/00
Inventor 贾永刚范智涵徐海波胡聪田壮才单红仙
Owner OCEAN UNIV OF CHINA
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