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Method for detecting coal seam thickness information by using borehole radar multiples

A technology of drilling radar and coal seam thickness, which is applied in the direction of using re-radiation, radio wave measurement system, radio wave reflection/re-radiation, etc., can solve the problems of predicting the fine change characteristics and complex structure of coal seam thickness, and achieve high resolution , high detection accuracy and high radar wave frequency

Active Publication Date: 2020-12-18
XIAN RES INST OF CHINA COAL TECH& ENG GROUP CORP
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Problems solved by technology

[0003] The general geophysical methods for detection of coal seam thickness and its changes are carried out on the surface of the ground or the surface of the object to be measured. Prediction of Fine Variation Characteristics of Coal Seam Thickness

Method used

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  • Method for detecting coal seam thickness information by using borehole radar multiples
  • Method for detecting coal seam thickness information by using borehole radar multiples
  • Method for detecting coal seam thickness information by using borehole radar multiples

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Embodiment

[0041] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0042] A method for predicting coal seam thickness and its variation by using borehole radar multiple waves, such as figure 1 As shown, it includes the following steps:

[0043] S1 On-the-spot measurement of the relationship between the position of the drill hole to be tested and the position of the roof and floor of the coal seam, according to figure 2 As shown in , record the opening position as P0(0,0), use a tape measure to measure the distance from the ...

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Abstract

The invention relates to a method for detecting coal seam thickness information, belongs to the technical field of coal mine detection, and particularly relates to a method for detecting coal seam thickness information by using drilling radar multiples. The method comprises the following steps: measuring position relation information of a to-be-measured drilling position and a coal seam roof and floor on site, measuring a relative dielectric constant of a to-be-measured coal seam, sending a drilling radar and a drilling track measuring instrument into an underground bedding hole of a coal mine, acquiring detection data of the drilling radar and data of a drilling track, and calculating the drilling track of the to-be-measured coal seam; combining the drilling radar data and the drilling track data of the multiple drilling holes to obtain the coal seam thickness change condition of the region.

Description

technical field [0001] The invention relates to a method for detecting coal seam thickness information, which belongs to the technical field of coal mine detection, in particular to a method for detecting coal seam thickness information by using borehole radar multiple waves. Background technique [0002] With the development of intelligent mining in coal mines, current coal seam mining requires advance exploration to predict the thickness and changes of high-precision coal seams. [0003] The general geophysical methods for detection of coal seam thickness and its changes are carried out on the surface of the ground or the surface of the object to be measured. Predict fine variation characteristics of coal seam thickness. [0004] Borehole radar sends a high-frequency electromagnetic wave transceiver device into the hole and directly enters the interior of the formation for detection. Its biggest feature and advantage are high resolution and high precision. For the safety...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S13/88
CPCG01S13/885
Inventor 程建远蒋必辞燕斌田小超汲方林丛琳张鹏代晨昱
Owner XIAN RES INST OF CHINA COAL TECH& ENG GROUP CORP
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