Study on EME Gray Cusp Catastrophe Model during Deformation and Fracture of Coal or Rock
Formulating electromagnetic emission (EME) signal changing characteristics during deformation and fracture of coal or rock in working face, combining with the accumulated generating operation (AGO) of gray system and cusp catastrophe theory, an EME gray cusp catastrophe model during deformation and fracture of coal or rock was established and a catastrophe judging rule was put forward. The danger of coal and gas outburst of the 12th coal seam excavating face in Hongling coal mine has been forecasted by this catastrophe model. The results indicate that between the forecast results of using the EME gray cusp catastrophe model and the comprehensive information forecast result of using the EME indexes (EME intensity E, EME pulse number N ), gas desorption index △h2, premonition phenomenon of coal and gas outburst have good consistency. The gray cusp catastrophe model can realize a continuously dynamic tendency forecast, increase the forecast precision, and has a broad application prospect.
coal or rock electromagnetic emission (EME) gray theory cusp catastrophe model coal and gas outburst
SA Zhanyou WANG Chunyuan WANG Dongmei
College of Automobile and Traffic, Qingdao Technological University, Qingdao 266520, Shandong, China
国际会议
The 2007 International Symposium on Safety Science and Technology(2007采矿科学与安全技术国际学术会议)
河南焦作
英文
1100-1105
2007-04-17（万方平台首次上网日期，不代表论文的发表时间）