Theory Analysis and Experimental Study on Propagation Laws of Acoustic Emission in Coal and Rock

摘要：

The propagation laws of acoustic emission in coal and rock is the base of AE monitoring gas dynamic disasters, AE signal conversion analysis, and AE discriminate analysis techniques of dynamic disasters. So, the propagation Laws of acoustic emission in coal and rock must be studied before beginning AE monitoring gas dynamic disasters in the field. Based on the stress wave propagation theory and quality factor Q theory, the AE propagation theoretic model is established. And combined with the many field tests, the AE propagation laws in coal and rock with the different protodrakonov scale of hardness. Based on these propagation laws and monitoring techniques in the field, the application conditions of AE monitoring dynamic disasters in the coal and rock are preliminarily given. These conclusions establish the theoretic and testing base for the further study on the AE forecasting gas dynamic disasters technique.

关键词： Coal and Rock Acoustic Emission (AE) Stress Wave Propagation Laws Protodrakonov Scale of Hardness Monitoring Application Condition

作者: Wen Guangcai LI Jiangong Yang Huiming Lv guichun

作者单位: Chongqing Research Institute of China Coal Research Institute, Chongqing 400037, China Chongqing Research Institute of China Coal Research Institute, Chongqing 400037, China Shandong Univ

会议类型: 国际会议

会议名称: 2010 International Conference on Mine Hazards Prevention and Control(第二届矿山灾害预防与控制国际学术会议 ICMHPC)

会议地点: 青岛

会议语种:英文

页码: 757-763

在线出版日期: 2010-10-15（万方平台首次上网日期，不代表论文的发表时间）