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《Journal of Liaoning Technical University(Natural Science)》 2009-03
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Application of coupling between EME and energy dissipation during deformation and fracture of coal-rock mass

YAO Jingming1,SHUI Guohong2,WANG Xi2 (1. Key Laboratory for the Exploitation of Southwestern Resources & the Environmental Disaster Control Engineering of Ministry of Education, Chongqing University ,400044, China; 2. College of Resources and Environmental Sciences, Chongqing University, Chongqing 400030, China)  
To consummate the forecast theory of coal-rock mass dynamic disaster based on electromagnetic emission (EME) method, the coupling relations between EME Signal and energy dissipation of coal-rock mass during the deformation of coal-rock mass are investigated using physical experiments and theoretical analysis. The results show that EME is caused by the plastic deformation of coal-rock mass. The pulse number of EME is proportional to the rate of plastic energy change, and the ratio is 5.962. In addition, the total pulse number of EME is proportional to plastic energy. EME is not only related with damage rate, but also proportional to plastic module of coal samples, which is corresponding to experimental phenomena.
【Fund】: 国家自然科学基金资助项目(50074030);; 国家自然科学重大基金资助项目(50490270)
【CateGory Index】: TD315
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