Research on the mechanisms of EME and charge accumulation during the rock crush |
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Authors: | Wei-jia Su Yan-ming Li |
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Affiliation: | Department of Mechanical Engineering, Liaoning Technical University, Fuxin 123000, China |
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Abstract: | The phenomenon of EME and charge accumulation were included during the load-bearing failure processing of the rock. The mechanism
and signal law of the two kinds of phenomenon through the experiment, as well as the mutual relation of the two kinds of phenomenon,
were contribute to monitor the regulation of the mine rock and prevent the dynamic disasters of the mine. There were two charge
sensors, one electromagnetic radiated sensors and one pressure sensor in the experiment to detect the EME signal and the charge
intensity signal during the load-bearing failure processing of the rock. The results show that the charge intensity signal
is prior to the EME signal through the date processing and numerical analysis. The two signals change obviously before the
rock crush. The two kinds of phenomenon are homogenous and have obvious master-slave characteristic. With the appeared of
the EME signal, the charge intensity signal decreased, the power is released.
Supported by the National Natural Science Foundation of China (50490275); Education Office of Liaoning Province (20082123) |
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Keywords: | EME charge accumulation charge sensor electromagnetic sensor |
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