Method for detecting directional reflection imaging of single-drilled geological radar

Abstract

The invention discloses a method for detecting directional reflection imaging of a single-drilled geological radar. The method comprises the following steps: drilling and sampling, placing a geological radar antenna into the bottom of a drill hole first, then pulling the geological radar antenna back to the ground, connecting a drilling radar directional detection tube through a thread, fixing a detection tube fixer to the ground, placing the geological radar antenna into a radar detection channel in the drilling radar directional detection tube, connecting the geological radar antenna to a distance measuring wheel and a computer, adjusting the angle of the drilling radar directional detection tube with the detection tube fixer and a tripod, contrasting full-space reflected radar wave images and reflected radar wave images of each fixed angle, and determining a specific orientation of the abnormal body. The method solves the problem that the single-hole geological radar reflection imaging cannot determine the orientation of a reflector through detection of different directions, and has great significance to the implementation of project and the transparency of the geological body.

Description

technical field [0001] The invention relates to the technical field of engineering geological detection, in particular to a detection method for single borehole geological radar directional reflection imaging. Background technique [0002] Geological prospecting is an investigation and research activity that conducts geological exploration and detection through various means and methods, determines the appropriate bearing layer, determines the foundation type, and calculates the foundation parameters according to the foundation bearing capacity of the bearing layer. Among them, physical exploration is referred to as geophysical prospecting, which is based on the differences in physical properties such as density, magnetism, electricity, elasticity, and radioactivity of various rocks and ores, and uses different physical methods and geophysical instruments to detect natural or artificial geophysical fields. By analyzing and studying the geophysical prospecting data obtained, ...

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Problems solved by technology

[0004] In view of the above-mentioned technical problems, the present invention provides a method for detecting the geological conditions of artificially set azimuths in boreholes using geological radar reflection imaging; using borehole radar directional detection tubes filled with wave-absorbing materials, The detection of different azimuths around the borehole can obtain the specific azimuth of the abnormal reflector in the borehole, which solves the problem that the azimuth of the reflector cannot be judged by single-hole geological radar reflection imaging

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