Seabed surface layer deformation sliding long-term observation device and method

An observation device and surface technology, applied in the field of seabed observation, can solve the problem of restricting disaster mechanism research and monitoring and early warning technology, there is little research on the deformation and sliding observation technology of regional seabed surface sediments, and there is a lack of quantitative observation of sliding distance and sliding direction and other issues to achieve the effect of good reusability and saving observation costs

Active Publication Date: 2020-10-16
OCEAN UNIV OF CHINA +1
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  • Summary
  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

At present, the observation technology of lateral deformation and sliding of shallow seabed sediments at home and abroad is relatively mature, but there is little research on the deformation and sliding observation technology of regional seabed surface sediments
The deformation and sliding observations of surface sediments are mostly qualitative analysis after occurrence, lacking quantitative observations of sliding distance and sliding direction
At present, there is no ideal observation method to directly obtain the evolution process of seabed surface sediment deformation and sliding, which seriously restricts the research on disaster mechanism and the development of monitoring and early warning technology.

Method used

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  • Seabed surface layer deformation sliding long-term observation device and method
  • Seabed surface layer deformation sliding long-term observation device and method
  • Seabed surface layer deformation sliding long-term observation device and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] like Figure 1-Figure 8 As shown in the figure, a long-term observation device for the deformation and sliding of the seabed surface, including the indwelling part ( figure 2 ) and the recycling part ( image 3 ).

[0056] like figure 2 (In order to show the structure of the device of the present invention more clearly, the attached figure 2 Only one auxiliary measurement unit is shown in the figure, and the remaining three auxiliary measurement units are omitted), the indwelling part includes a central measurement unit and four auxiliary measurement units.

[0057] The bottom of the central measuring unit is the suction anchor 16 , the upper part of the suction anchor 16 is fixedly connected to the support frame 14 , and the stop plate 15 is fixed in the middle of the support frame 14 . A support panel 13 is fixed above the support frame 14 . The support panel 13 is rectangular, and each corner attachment of the support panel 13 is provided with a main measuremen...

Embodiment 2

[0112] The difference from Embodiment 1 is that three main measurement columns and three auxiliary measurement units are provided, and the opening degree of the measurement opening on each main measurement column is 120°.

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Abstract

The invention discloses a seabed surface layer deformation sliding long-term observation device and method, and belongs to the technical field of seabed observation. The device comprises a central measuring unit and a plurality of auxiliary measuring units, and quantitative data of seabed surface layer deformation sliding displacement and sliding orientation in a certain area range can be measuredthrough cooperation of the central measuring unit and the auxiliary measuring units. In-situ long-term observation of seabed surface sediment deformation sliding displacement and orientation can be realized, the device has large-range measurement characteristics, and the regional seabed surface sediment deformation sliding process can be measured.

Description

technical field [0001] The invention relates to the technical field of seabed observation, in particular to a long-term observation device and method for seabed surface deformation and sliding. Background technique [0002] Deformation and sliding of the seabed surface is an intuitive phenomenon of a series of marine geological disasters such as submarine creep and submarine landslides, and can reflect the stable state of submarine slope sediments. However, the stability of submarine slope sediments is directly related to the safe development of submarine oil and gas resources. Cables and other important engineering facilities will bring huge dangers and losses. [0003] The reason for seabed surface deformation and sliding is, on the one hand, due to the internal structure and dynamic conditions of the sediment, such as the water content and clay content of the soft sediment on the seabed or the overpressure fluid produced by the decomposition of natural gas hydrate, etc.;...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B21/32
CPCG01B21/32
Inventor 贾永刚宋晓帅范智涵孙志文薛凉陆杨单红仙单海龙
Owner OCEAN UNIV OF CHINA
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