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Deep and far sea seabed stability evaluation method based on fuzzy mathematics

A technology of fuzzy mathematics and evaluation methods, applied in data processing applications, geographic information databases, structured data retrieval, etc., can solve problems such as engineering damage, difficult exploration, and few research results

Pending Publication Date: 2021-05-18
SHANDONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] There are rich mineral resources in the deep sea. Compared with the offshore sea, the main problems are the difficulty of exploration, low data accuracy and few research results.
Due to the lack of information, it is easy to be affected by submarine geological disasters (submarine landslides, collapses, etc.) during the construction of marine projects, resulting in project damage and collapse, resulting in major economic and property losses

Method used

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  • Deep and far sea seabed stability evaluation method based on fuzzy mathematics
  • Deep and far sea seabed stability evaluation method based on fuzzy mathematics
  • Deep and far sea seabed stability evaluation method based on fuzzy mathematics

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Experimental program
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Effect test

Embodiment 1

[0042] Embodiment 1 The fuzzy mathematics-based deep-sea seabed stability evaluation method provided in this embodiment, the process is as follows figure 1 As shown, it specifically includes the following steps:

[0043] 1. Establishment of an evaluation index system for seabed stability in deep and open seas

[0044] 1. Select the deep sea bottom stability evaluation index

[0045] Select the influencing factors that affect the stability of the deep-sea seabed, and obtain the stability evaluation factor set A. The evaluation indicators are mainly composed of two indicators: disaster-forming background and disaster-geology. Factor and sediment four indicators.

[0046] 2. Analyze the degree of attribution of each indicator (influencing factor) to the stability assessment level, and assign a value within the range of 0-1 to each indicator in combination with expert experience and fuzzy mathematics.

[0047] 2. Empower the influencing factors

[0048] Since each influencing ...

Embodiment 2

[0064] Embodiment 2 In this embodiment, the following research area is taken as an example, and the method for evaluating the stability of the deep seabed based on fuzzy mathematics provided by the present invention is used for evaluation. The specific steps are described in detail as follows:

[0065] 1. Overview of the study area, determination of the indicator system and data preparation:

[0066] 1. Overview of the study area

[0067] Such as figure 2 As shown, the study area is located in the southern part of the Philippine Sea in the western Pacific Ocean, at the junction of the Eurasian plate and the Pacific plate, with an area of ​​about 2.6×104km 2 , the seabed elevation is between -6700—-1700m. The tectonic movement is active, the terrain and landform fluctuate greatly, and the seabed micro-geomorphology units are widely developed.

[0068] 2. Selection of evaluation indicators

[0069] According to the actual situation of the study area, the selected geological...

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Abstract

The invention relates to the technical field of deep and far sea evaluation, in particular to a deep and far sea seabed stability evaluation method. A deep and far sea seabed stability evaluation method based on fuzzy mathematics comprises the following steps: 1) selecting influence factors influencing the deep and far sea seabed stability, and establishing a deep and far sea seabed stability evaluation index system; 2) weighting the influence factors; 3) constructing an evaluation model; 4) reading GIS environment analysis data, and preprocessing geological stability analysis data to obtain seabed stability data; and 5) according to the seabed stability data, evaluating the seabed geological stability of the deep and far sea. According to the method, data processing and spatial analysis functions of the GIS are fully utilized, processing (classification, assignment, weighting and the like) and overlay analysis of deep and far sea seabed stability influence factor data are realized, and a seabed stability numerical value is obtained. Practice shows that the method achieves an expected effect under the GIS environment, and certain reference significance can be provided for deep and far sea seabed engineering construction.

Description

technical field [0001] The invention relates to the technical field of deep sea evaluation, in particular to a deep sea bottom stability evaluation method. Background technique [0002] The ocean is rich in fishery, mineral, ecological and other resources. The development of marine economy and marine scientific research is a very important aspect of promoting our strategy of strengthening our country. Among them, the deep sea, as an undeveloped field, is of far-reaching significance to the development of my country's marine industry. [0003] There are rich mineral resources in the deep sea. Compared with the offshore sea, the main problems are the difficulty of exploration, low data accuracy and few research results. Due to the lack of information, marine engineering construction is easily affected by submarine geological disasters (submarine landslides, collapses, etc.), resulting in engineering damage and collapse, resulting in major economic and property losses. How to...

Claims

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Application Information

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IPC IPC(8): G06Q10/06G06F16/29G01C13/00
CPCG06Q10/06393G06F16/29G01C13/00
Inventor 刘森杨霄刘娅楠贾超邵帅杨帆
Owner SHANDONG UNIV