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Scientific, Technological and Production Journal
ISSN 2079–3332 (print)
ISSN 3034-6835 (online)
founded in 2001

Infrared diagnostics of geomechanical processes in mining workings caused by natural and man-made factors

Original articles: 2025 No 5

Infrared diagnostics of geomechanical processes in mining workings caused by natural and man-made factors

DOI: 10.56195/20793332-2025-25-6-26-31

Read in pdf D. I. Blokhin
  1. National University of Science and Technology "MISIS", Moscow, Russian Federation
p. 26-31, No.6/2025
Abstract:
The methodology and results of experimental studies performed to substantiate the effectiveness of using thermoradiological (IR-radiometric) measurements to diagnose changes in the stress state of arrays over time are described. The tests of geomaterial samples under various loading conditions under uniaxial compression conditions are described, which were performed with synchronous registration of changes in the parameters of thermal radiation signals and strain gauge data. The design of a "large-scale" stand for alternating loading of a relatively large (≈0.35 m3) volume of soil is described. Changes in the stress state over time in the bottomhole zone of the "well", arranged in a model of a soil massif, are recorded using synchronous recordings of IR radiometer signals and strain gauge elements installed inside the loaded volume. The reliability of estimating stress changes in the "array" of soil over time according to IR radiometry data is demonstrated. From a physical point of view, the obtained results show that the recorded thermodynamic processes accompanying the deformation of the soil "massif" can be considered adiabatic with sufficient accuracy, i.e. in conditions simulating real field measurements, the basic physical prerequisite for the effectiveness of thermoradiological diagnostics is fulfilled. The experimental results indicate the possibility of using complex geophysical measurements in monitoring systems for real geomechanical events.
Keywords:
rocks, stresses, deformations, diagnostics, thermal radiation, strain gauge
For citation:
Blokhin D. I. Infrared diagnostics of geomechanical processes in mining workings caused by natural and manmade factors. Mine Surveying and Subsurface Use. 2025;25(6):26-31. (In Russ.). https://doi.org/10.56195/20793332-2025-256-26-31.
Information about the authors:
  1. Dmitry I. Blokhin – Cand. Sci. (Eng.), Associate Professor, Associate Professor of the Department of Physics, National University of Science and Technology “MISIS”, 119049, Moscow, Russian Federation; https://orcid.org/0000-0002-4652-661X; e-mail: dblokhin@ yandex.ru
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