Plane wave electromagnetic sounding method suitable for mountainous areas

An electromagnetic sounding and plane wave technology, which is applied in electromagnetic wave detection and other directions, can solve the problems of cumbersome operation of horizontal electromagnetic fields, etc., and achieve the effect of small terrain influence, accurate sounding data, and simple field operation

Active Publication Date: 2020-04-03
CENT SOUTH UNIV +1
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  • Abstract
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  • Application Information

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Problems solved by technology

[0004] In reality, the mountainous terrain is often inclined, and the operation of obtaining the horizontal electromagnetic field through man-made operations such as digging and conversion is not only cumbersome, but also prone to large errors

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  • Plane wave electromagnetic sounding method suitable for mountainous areas
  • Plane wave electromagnetic sounding method suitable for mountainous areas
  • Plane wave electromagnetic sounding method suitable for mountainous areas

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Embodiment Construction

[0022] Such as figure 1 Shown is the method flowchart of the method of the present invention: this plane wave electromagnetic sounding method that the present invention provides is applicable to mountainous areas, comprises the following steps:

[0023] S1. According to the survey task and the terrain characteristics of the survey site, design survey lines and survey points;

[0024] S2. According to the terrain characteristics of the measurement site, determine the placement status of the observation device; specifically, the following rules are used to determine the placement status:

[0025] R1. Along the direction of the mountain is the horizontal y direction;

[0026] R2. The horizontal trend of the vertical mountain body is the horizontal x direction;

[0027] R3. The tangential direction along the hillside interface is the t direction; (if the ground is level, the x direction is consistent with the t direction)

[0028] R4. The electrode-electrode connection line for...

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Abstract

The invention discloses an electromagnetic plane wave sounding method suitable for mountains. The method comprises the steps of: designing a measuring line and a measuring point; determining a puttingstate of an observation device; starting measurement and acquiring and processing electric field and magnetic field data; and drawing images of electric resistivity and a deep section of a measured land. According to the electromagnetic plane wave sounding method suitable for mountains, the electric resistivity sounding data is more correct, the observation horizontal electric fields are along the trend of slopes, the observation magnetic fields are along the tangent directions of the slopes, the observation results are less influenced by terrains and the field operations are simple.

Description

technical field [0001] The invention specifically relates to a plane wave electromagnetic sounding method suitable for mountainous areas. Background technique [0002] With the development of economy and technology and the improvement of people's living standards, people pay more and more attention to basic subjects. [0003] The plane wave electromagnetic sounding method is mainly based on the Carnia resistivity to study the spatial distribution of underground resistivity. Traditional plane-wave electromagnetic sounding methods, including magnetotelluric method (MT), audio-frequency magnetotelluric method (AMT), controlled source magnetotelluric method (CSAMT), etc., are used to detect mutually orthogonal horizontal electric fields and The magnetic field component requires human operation (planing) to observe the horizontal electric field and magnetic field when observing the inclined ground. The electrode distance must be converted into the length of the pole distance in ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01V3/12
Inventor 席振铢龙霞周胜陈兴朋王亮韦洪兰肖炜薛军平王鹤
Owner CENT SOUTH UNIV
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