Method and device for establishing security risk evaluation system in ocean and coastal environment

Abstract

The invention discloses a method and a device for establishing a security risk evaluation system in ocean and coastal environment. The method comprises: establishing a seawater dynamic model of rotational wave ocean current of ocean and coastal environment; using the seawater dynamic model, performing simulation calculation on the parameter value of each dynamic phenomenon in ocean and coastal environment; using the calculated parameter value of each dynamic phenomenon, calculating hydrodynamic load and a breaking strength parameter of seawater; and based on the hydrodynamic load and the breaking strength parameter, establishing a security risk evaluation system in ocean and coastal environment. Through establishing the seawater dynamic model of rotational wave ocean current of ocean and coastal environment, the model is differ from a model established by irrotational hypothesis, so the established seawater dynamic model is more close to ocean and coastal environment in natural phenomenon, especially having nearshore environment with more turbulence flow. Therefore, accuracy of established seawater dynamic model is improved, so as to ensure accuracy of the security risk evaluation system.

Description

technical field [0001] This application relates to the technical field of marine and coastal engineering, and more specifically relates to a method and device for establishing a safety risk assessment system in marine and coastal environments. Background technique [0002] In nature, there is a huge amount of energy in the ocean, which has a strong utilization value. In the process of human development of the ocean, such as fishing, oil exploitation, and the establishment of nuclear power plants, in order to ensure the safety of coastal engineering, ecology, life and property, it is necessary to conduct safety assessments of the ocean and coastal environment. [0003] In the prior art, the seawater dynamic model of the marine and coastal environment is generally established to simulate the real marine and coastal environment, and then a safety risk assessment system is established to realize the safety risk assessment of the marine and coastal environment. [0004] In the e...

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Problems solved by technology

[0005] In view of this, this application provides a method and device for establishing a safety risk assessment system in marine and coastal environments, to solve the problem that the seawater dynamic model in the prior art is based on the theory of no-rotation hypothesis, which reduces the accuracy of the seawater dynamic model , resulting in a technical problem of low accuracy of the safety risk evaluation system

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