Dynamic analysis of granite rockburst based on the PIV technique

作     者：Wang Hongjian Liu Da'an Gong Weili Li Liyun 

作者机构：Key Laboratory of GeomechanicsInstitute of Geology and GeophysicsChinese Academy of Sciences School of Mechanics and Civil EngineeringChina University of Mining & Technology 

出 版 物：《International Journal of Mining Science and Technology》 (矿业科学技术学报（英文版）)

年 卷 期：2015年第25卷第2期

页      面：275-283页

核心收录：

学科分类：0709[理学-地质学] 0819[工学-矿业工程] 0808[工学-电气工程] 08[工学] 0818[工学-地质资源与地质工程] 0708[理学-地球物理学] 0807[工学-动力工程及工程热物理] 080104[工学-工程力学] 0815[工学-水利工程] 0813[工学-建筑学] 0814[工学-土木工程] 0801[工学-力学（可授工学、理学学位）] 

基　　金：supported by the National Natural Science Foundation of China (No.41172270) National Basic Research Program (No.2011CB201201) 

主　　题：Rock mechanics Instantaneous rockburst Particle image velocimetry Energy variation 

摘      要：This paper describes the deep rockburst simulation system to reproduce the granite instantaneous rockburst *** on the PIV(Particle Image Velocimetry)technique,quantitative analysis of a rockburst,the images of tracer particle,displacement and strain fields can be obtained,and the debris trajectory *** to the observation of on-site tests,the dynamic rockburst is actually a gas–solid high speed flow process,which is caused by the interaction of rock fragments and surrounding *** the help of analysis on high speed video and PIV images,the granite rockburst failure process is composed of six stages of platey fragment spalling and debris ***,the elastic energy for these six stages has been calculated to study the energy *** results indicate that the rockburst process can be summarized as:an initiating stage,intensive developing stage and gradual decay *** research will be helpful for our further understanding of the rockburst mechanism.