Ultrasound Correlation Logging for Roof Rock Structure Diagnostics
V. L. SHKURATNIK, P. V. NIKOLENKO, A. A. KORMNOV
National University of Science and Technology-MISiS, Leninskii pr. 4, Moscow, 119049 Russia
Keywords: roof rocks, ultrasound, noise signal, correlation method, control, fracture, structure diagnostics
Abstract
Influence of a fracture and lamination in roof of an underground excavation on correlation characteristics of stationary continuous acoustic noise signal is studied by means of computer and physical modeling. It is shown that against conventional time-impulse method of roof rock structure diagnostics, the use of acoustic signal and the new method of log data processing enhances perceptibility and reliability of the analysis of roof rocks and their damage with fractures.
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