Control of Dynamic Rock Pressure Events Using Improved EME Recording Instrumentation
A. A. BIZYAEV, G. E. YAKOVITSKAYA
Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences, Krasnyi pr. 54, Novosibirsk, 630091 Russia
Keywords: горные выработки, разрушение, электромагнитное излучение, регистрация, приборы, диагностика, mine workings, failure, electromagnetic emission, recording, instrumentation, diagnosis
Abstract
The article reports electromagnetic emission (EME) measurements in rocks using REMI-2 equipment and recording-diagnosing system RDS REMI-3 developed jointly at the Institute of Mining and Novosibirsk State Technical University. REMI-2 measures EME signal strength and displays the results digitally. RDS REMI-3 is advantageous over earlier designed equipment as it downloads measurement data in the embedded memory. The EME records are displayed as oscillograms to enable detecting initial stage of rock failure based on analysis of change in structure, parameters and spectrum-and-time behavior of EME signals.
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