Underground unfavorable geological survey method and system based on artificial field source frequency domain electrical method

An artificial field source and geological survey technology, applied in the field of geological survey, can solve problems such as poor geological survey methods and affecting the accuracy of frequency domain electrical survey, and achieve the effect of improving survey accuracy and high precision

Pending Publication Date: 2021-01-01
CHANGCHUN INST OF TECH
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Problems solved by technology

[0006] In order to solve the problem that the GPS positioning error of the artificial excitation field source will affect the accuracy of the frequency domain electrical exploration to a certain extent in the existing artificial field source frequency domain electrical prospecting method, the purpose of the present invention is to provide a frequency domain electrical prospecting method based on artificial field source. Method and system for underground unfavorable geological survey

Method used

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  • Underground unfavorable geological survey method and system based on artificial field source frequency domain electrical method
  • Underground unfavorable geological survey method and system based on artificial field source frequency domain electrical method
  • Underground unfavorable geological survey method and system based on artificial field source frequency domain electrical method

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Embodiment 1

[0051] Embodiment 1: Underground adverse geological survey method and system based on artificial field source frequency domain electrical method,

[0052] In the first aspect, an underground adverse geological survey method based on the artificial field source frequency domain electrical method is provided, including the following steps:

[0053] S101: Arranging multiple survey points in an array in the geological survey area, and obtaining positioning information of each survey point according to the arrangement;

[0054] S102: output a continuous linearly changing waveform current signal through the waveform generator, set the first filter for each survey point one by one, and intercept the waveform current signal from the waveform current signal through the first filter according to the arrangement order of the survey points without overlapping each other The continuous wave band is input into the geological interior as the work excitation field source;

[0055] S103: Set ...

Embodiment 2

[0077] Embodiment 2: An underground unfavorable geological survey system based on the artificial field source frequency domain electrical method, including:

[0078] A positioning module, configured to arrange a plurality of survey points in an array in the geological survey area, and obtain positioning information of each survey point according to the arrangement;

[0079] The waveform output module is used to output a continuous linearly changing waveform current signal through the waveform generator. The first filter is set for each survey point one by one, and the waveform current signal is intercepted from the waveform current signal through the first filter according to the arrangement sequence of the survey points. The continuous wave bands that do not overlap between them, the continuous wave bands are input into the geological interior as the source of the industrial excitation field;

[0080] The waveform receiving module is used to set the waveform receiver and the ...

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Abstract

The invention discloses an underground unfavorable geological survey method based on an artificial field source frequency domain electrical method. The underground unfavorable geological survey methodis characterized by comprising the following steps: acquiring positioning information of each survey point according to an arrangement mode; intercepting non-overlapping continuous wave bands from waveform current signals through a first filter according to an arrangement sequence of the survey points, and inputting the continuous wave bands into the geology to serve as an industrial excitation field source; filtering the waveform current signal in an output frequency receiving range of the non-waveform generator through a corresponding second filter; simulating and calculating a three-dimensional space transmission path of the continuous wave band emitted by each survey point; establishing a three-dimensional geologic model according to the three-dimensional space transmission path of each continuous wave band, and obtaining an unfavorable geologic model; and solving unfavorable geological distribution position information and distribution shape information according to the unfavorable geological model. According to the invention, the positioning information is subjected to secondary deviation rectification positioning so that the actual positioning information of each survey point is high in accuracy, and the underground unfavorable geological survey accuracy is improved.

Description

technical field [0001] The invention relates to the technical field of geological survey, more specifically, it relates to an underground unfavorable geological survey method and system based on artificial field source frequency domain electrical method. Background technique [0002] Geological survey is the investigation and research activity of conducting geological exploration and detection through various means and methods, determining the appropriate bearing layer, determining the foundation type and calculating the foundation parameters according to the foundation bearing capacity of the bearing layer. It is the discovery of mineral deposits with industrial significance in the general survey of mineral resources. In order to ascertain the quality and quantity of mineral products, as well as the technical conditions for mining and utilization, provide mineral reserves and geological data required for mine construction design, and analyze rocks and strata in a certain are...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V3/02G01V3/38
CPCG01V3/02G01V3/38
Inventor 迟唤昭邓馨卉薛晓刚张成陈国强
Owner CHANGCHUN INST OF TECH
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