Modeling seismic experiments for weakness zone prediction in rock mass above mined-out voids

The article exemplifies the use of mathematical modeling for the detection of weakness zones above mined-out spaces in rock mass. A physical–geological model of weakness zones above a mined-out void is developed. The mathematical modeling of wave fields is carried out in the conditions conformable with the seismic experiments using the common depth point stack. Efficiency of the methods of reflected waves and diffracted waves in the weakness zone detection is evaluated. The signs of the weakness zones in the seismic profiles obtained using the common depth point stack and in the seismic images obtained using the method of diffracted waves for the cases of horizontal and inclined bedding of rocks are examined. The mathematical modeling results prove possibility of detection of weakness zones above minedout areas. The weakness zones are identified in the seismic profiles obtained using the common depth point by the sign of a diffraction effect and reflecting boundary. Regarding the seismic images obtained using the method of diffraction waves, the weakness zones show up as the inphase effects of combination of scattered waves.

Glukhov А. А., Antsiferov А. V., Golubev P. М. Modeling seismic experiments for weakness zone prediction in rock mass above mined-out voids. MIAB. Mining Inf. Anal. Bull. 2025;(11):87-98. [In Russ]. DOI: 10.25018/0236_1493_2025_11_0_87.

The study was carried out at RANIMI in the framework of the state contract, state registration no. 124061700022-3.

А.А. Glukhov¹, Dr. Sci. (Eng.), Senior Researcher, Deputy Director for Scientific Work, e-mail: glukhov1964@yandex.ru, ORCID ID: 0000-0001-9816-5628,
А.V. Antsiferov¹, Dr. Sci. (Eng.), Professor, Scientific Director, e-mail: antsyferov_av@mail.ru, ORCID ID: 0009-0008-0684-6513,
P.М. Golubev¹, Cand. Sci. (Eng.), Head of Department for Geodynamic and Geophysical Processes, e-mail: alaby007@mail.ru, ORCID ID: 0009-0008-5093-4916,
¹ Republican Academic Scientific, Research and Design Institute for Mining Geology, Geomechanics, Geophysics and Mine Surveying (RANIMI), 283086, Donetsk, Russia. 

А.А. Glukhov, e-mail: glukhov1964@yandex.ru.

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