The acoustic emission technique research on dynamic damage characteristics of the coal rock
The acoustic emission technique is used to research the deformation and the failure process, investigate the deformation and injury regularity, discuss the physical process of acoustic emission of the coal and gas outburst and reveal the evolution process and disaster mechanism of the coal rock dynamic disaster. In this paper, the relationship between the damage and the acoustic emission is researched to get the coal cock damage expression which is expressed by the acoustic emission cumulative value. Meanwhile, the quasi-static is used to analyze the evolution process of the coal rocks inner damage and describe the coal rocks single axis damage character. On the base of the coal rock unit damage model, the constitutive relationship of acoustic emission coal rock is studied, which is the theory analysis for the coal and gas outburst. It is very significant for the research of the coal and gas outburst mechanism and prediction.
coal and gas outburst damage factors acoustic emission energy functional
Wu Yu-liang Chen Jie Zeng Sen-mao
Sichuan academy of safety science and technology, chengdu 610045, China Sichuan coal industry group limited liability company,chengdu 610091,China
国际会议
The First International Symposium on Mine Safety Science and Engineering (首届矿山安全科学与工程学术会议)
北京
英文
1184-1190
2011-10-27（万方平台首次上网日期，不代表论文的发表时间）