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Annular space grid data structure and construction and retrieval method and device thereof

A ring space and data structure technology, applied in CAD numerical modeling, special data processing applications, design optimization/simulation, etc., can solve the problems of large storage space, large errors, waste of storage space, etc., to improve data accuracy, reduce The effect of small storage space

Active Publication Date: 2021-08-27
CHINA REINSURANCE (GROUP) CORPORATION +2
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  • Claims
  • Application Information

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Problems solved by technology

The traditional equal-area (or equal longitude and latitude) earthquake influence field grid needs to occupy a huge storage space. Taking the simulation of one million years as an example, it needs to occupy TB-level space, and the earthquake influence field decays exponentially, close to the error of the epicenter Larger, but the values ​​of grid data far away from the epicenter are very close, wasting storage space

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  • Annular space grid data structure and construction and retrieval method and device thereof
  • Annular space grid data structure and construction and retrieval method and device thereof
  • Annular space grid data structure and construction and retrieval method and device thereof

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Embodiment Construction

[0050] Some of the following embodiments are used to understand many details of the present invention, however, it still cannot be interpreted as a specific limitation to the protection scope of the present invention.

[0051] see figure 1 As shown in the traditional equal-area (or equal longitude and latitude) earthquake influence field grid diagram, the error in the epicenter area is very large, while the peripheral area wastes storage due to the extremely small difference in ground motion parameter values.

[0052] Construction of Ring Space Grid

[0053] 1. According to the ground motion attenuation ellipse model (see GB 18306-2015 for details), for an earthquake with known divisions and magnitudes, the relationship between ground motion parameters and distances on the major and minor axes is:

[0054] wxya l =A+BM+Clg(R+De EM )

[0055] wxyas =A'+B'M+C'lg(R+D'e E′M )

[0056] Y is the ground motion parameter (Y l is the ground motion parameter on the long axis, Y ...

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Abstract

The invention relates to a data structure with annular space grids, and a plurality of annular space grids formed by a plurality of ellipses, wherein long axes and short axes of the ellipses are progressively increased according to a function and intersection points of the ellipses coincide; each annular space grid has a seismic parameter value of any seismic parameter of any seismic event of the known magnitude and seismic partition; the seismic oscillation parameter values correspond to the long axis Ra and the short axis Rb of the ellipse. The invention provides a design method and device for construction and rapid retrieval of an annular space grid aiming at seismic attenuation and influence field distribution characteristics. The data precision is improved, the storage space is greatly reduced, and the requirements of functions such as medium-and-long-term earthquake loss evaluation are met.

Description

technical field [0001] The invention belongs to the field of earthquake catastrophe models, in particular to an annular space grid data structure and its construction and retrieval methods and devices. Background technique [0002] In earthquake catastrophe models, tens of millions of earthquake event sets are usually simulated in order to assess the loss caused by medium and long-term earthquakes. Depending on the intensity of the earthquake, the range of the earthquake's impact field varies from several thousand kilometers to tens of thousands of square kilometers, and the area of ​​influence caused by a major earthquake even exceeds 100,000 square kilometers. In order to analyze the damage and loss caused by earthquake events, it is often necessary to calculate the impact field of the earthquake. The traditional equal-area (or equal longitude and latitude) earthquake influence field grid needs to occupy a huge storage space. Taking the simulation of one million years as ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20G06F111/10
CPCG06F30/20G06F2111/10
Inventor 王小东熊政辉周俊华
Owner CHINA REINSURANCE (GROUP) CORPORATION