Method and device for analyzing time-lapse seismic observation data

Abstract

An embodiment of the present invention provides a time-lapse seismic observation data analysis method and device, the method comprising: detecting the site conditions of the observation site, determining the layout type of the excitation point and the receiving point according to the site conditions of the observation site; conducting a site experiment, Get the basic parameters; when the layout type is linear, arrange the positions of the excitation point and the receiving point according to the basic parameters; when it is a regular grid type, calculate the observation parameters according to the basic parameters, and arrange the positions of the excitation point and the receiving point according to the observation parameters; Select different time points to excite the excitation point, and obtain the seismic waves received by the receiving point; calculate the seismic images of the observation site at different times according to the seismic waves received by the receiving point; obtain site data, establish a corresponding relationship according to the site data and seismic images, through the corresponding relationship Perform data analysis. The method can reflect the seismic data of expansive soil bank slopes and embankment landslides in time and space, and then can accurately identify anomalies.

Description

technical field [0001] The invention relates to the technical field of seismic exploration, in particular to a method and device for analyzing time-lapse seismic observation data. Background technique [0002] Seismic data acquisition is the basis of seismic exploration. The quality of seismic data collected in the field directly affects the exploration results, especially for seismic data detection of expansive soil bank slopes and dam landslides. Due to the complexity and variability of the crustal structure, seismic data needs to be more accurate. precise. [0003] At present, for the detection of expansive soil bank slopes and embankment landslides, a single survey line is usually arranged, and then seismic data are detected by seismic imaging methods, seismic refraction methods, surface wave methods and other seismic detection methods. [0004] However, the processing of seismic data by the above method only analyzes the transient seismic data of a specific section at ...

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Problems solved by technology

[0004] However, the processing of seismic data by the above method only analyzes the transient seismic data of a specific section at a specific moment, and cannot reflect the time-lapse change image of the landslide process; limited by a single time and transient data, the ability to identify anomalies is poor. weak

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