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Seismoacoustic survey of artificial inhomogeneities in the ground

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Abstract

The results of processing the field test data obtained for the seismoacoustic system designed at the Institute of Applied Physics of the Russian Academy of Sciences for the visualization of underground engineering structures are presented. The described experiment is the first demonstration of the use of a high-power, high-stability transmitting-receiving system for producing a coherent insonification with a frequency of 195 Hz. The receiving element of the system is a synthetic aperture array. With the use of focusing as a method of the final signal processing, an image of a tunnel lying at a depth of 30 m is obtained in three spatial cross-sections, which demonstrates the possibility of a three-dimensional, coherent, high-frequency seismic survey of engineering structures.

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Translated from Akusticheski\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l}\) Zhurnal, Vol. 47, No. 4, 2001, pp. 437–441.

Original Russian Text Copyright © 2001 by Averbakh, Artel’ny\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l}\), Bogolyubov, Zaslavski\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l}\), Kukushkin, Lebedev, Maryshev, Postoenko, Talanov.

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Averbakh, V.S., Artel’nyi, V.V., Bogolyubov, B.N. et al. Seismoacoustic survey of artificial inhomogeneities in the ground. Acoust. Phys. 47, 371–375 (2001). https://doi.org/10.1134/1.1385408

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