Abstract

Stress in rock-masses can develop cracks. Crack formation generates acoustic emission which can be recorded using special equipment. The acoustic emission from cracked zones can be analyzed using gaps between acoustic energy emissions. Other models of the acoustic emission can be used. The special attention is paid to processes of Ihe acoustic emission originated during gas sorption and gas flow through coal medium. The acoustic emission method can be used in assessment of rock bursts, slope slides and gas outbursts.

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