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Formation velocity structure detection method and device and storage medium

A detection method and speed technology, applied in the field of engineering survey, to achieve the effect of improving the detection depth and enhancing the anti-interference ability

Active Publication Date: 2021-01-05
CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP
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Problems solved by technology

[0004] Conventional surface wave methods are all linear measurements, and cannot form three-dimensional measurement results for a band-shaped range in a certain area

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  • Formation velocity structure detection method and device and storage medium
  • Formation velocity structure detection method and device and storage medium
  • Formation velocity structure detection method and device and storage medium

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Embodiment Construction

[0065] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the embodiments of the present disclosure. Rather, they are merely examples of apparatuses and methods consistent with aspects of the disclosed embodiments as recited in the appended claims.

[0066] It should be noted that, in some embodiments of the present disclosure, the velocity in the formation velocity structure refers to the velocity of seismic waves propagating in different media, and the velocity reflects the properties of different media in the formation, and the formation velocity structure refers to the Different media lead to different ...

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Abstract

The invention provides a formation velocity structure detection method and device and a storage medium. The method comprises the steps of collecting passive source surface wave data and active sourcesurface wave data of a target geographic area; obtaining a first surface wave frequency dispersion curve of the measured wave in the vertical direction according to the vertical component of the active source surface wave data; obtaining a second surface wave frequency dispersion curve of the measured wave in the vertical direction according to the vertical component of the passive source surfacewave data; predicting a formation velocity structure of the target geographic area according to the first surface wave frequency dispersion curve and the second surface wave frequency dispersion curve; and associating the formation velocity structures of different sections of the target geographic area to obtain a velocity structure of the target geographic area in a three-dimensional space. By adopting the technical scheme provided by the invention, the active source surface wave data and the passive source surface wave data are integrated, the detection depth is improved, the anti-interference capability is enhanced, and a better velocity structure in a three-dimensional space can be formed.

Description

technical field [0001] The present disclosure relates to the field of engineering survey, in particular to a detection method, device and storage medium of formation velocity structure. Background technique [0002] The surface wave method is widely used in the field of engineering survey, especially in the field of urban rail transit. Active sources have limited detection depth and are greatly affected by urban human interference. [0003] The passive source surface wave micro-motion array technology is easily limited by the site. Microtremor array technology (Microtremor array technology): also known as passive source surface wave exploration, is based on the theory of stationary random processes, and obtains natural vertical downward micro-motion signals through specific observation devices, and extracts surface waves from the micro-motion signals (Rayleigh wave) dispersion curve, a technique for inversion of formation properties from dispersion curves. According to th...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V1/30G01V1/28G01V1/18
CPCG01V1/303G01V1/28G01V1/18
Inventor 郭建湖化希瑞刘铁刘铁华张邦崔德海刘伟刘瑞军雷理韦德江蔡盛卿志杨正国陈洪杰王敏
Owner CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP
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