Experimental Study on Stress Evolution and Microseismic Signals under Vibration Conditions of Coal during Excavation and Subsequent Waiting Time

<div>Stress evolution during the first excavation in the second stage: (a) the stress-time curve of 4 measuring points; (b) diagram of stress distribution at different locations over time.</div>

Shock and Vibration

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Figure 5

Figure 5: Experimental Study on Stress Evolution and Microseismic Signals under Vibration Conditions of Coal during Excavation and Subsequent Waiting Time 

Figure 5 | Experimental Study on Stress Evolution and Microseismic Signals under Vibration Conditions of Coal during Excavation and Subsequent Waiting Time 