Method for carrying out shallow exploration by using SH wave excited by axisymmetric probe on ground

Method for carrying out shallow exploration by using SH wave excited by axisymmetric probe on ground

The invention discloses a method for shallow exploration by using an SH wave excited by an axisymmetric probe on the ground. The method comprises the following steps: pricking an axisymmetric transmitting probe on the ground, exciting vibration in the circumferential direction, and spreading the vib...

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1. Verfasser: SHEN YONGJIN
Format: Patent
Sprache:chi ; eng
Schlagworte:
DETECTING MASSES OR OBJECTS
GEOPHYSICS
GRAVITATIONAL MEASUREMENTS
MEASURING
PHYSICS
TESTING
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description The invention discloses a method for shallow exploration by using an SH wave excited by an axisymmetric probe on the ground. The method comprises the following steps: pricking an axisymmetric transmitting probe on the ground, exciting vibration in the circumferential direction, and spreading the vibration in an SH wave mode; array receiving probes are placed in the radial direction of the transmitting probe, SH wave waveforms at different source distances are measured, and vibration in the circumferential direction is received; processing the SH wave waveform to obtain a wave number-frequency distribution curve and a time difference frequency dispersion curve; converting the wave number-frequency distribution curve into a reciprocal of the wave number to obtain a depth-time difference relation curve; extending the high-order mode wave distribution curve to a frequency axis with a wave number of 0 on a wave number-frequency plane to obtain a corresponding frequency and a stratum depth; according to an actual t
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subjects DETECTING MASSES OR OBJECTS
GEOPHYSICS
GRAVITATIONAL MEASUREMENTS
MEASURING
PHYSICS
TESTING
title Method for carrying out shallow exploration by using SH wave excited by axisymmetric probe on ground
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