Study on critical conditions for rock failure by means of group renormallzation

• 来源期刊: 煤炭学报（英文版）
• 年，卷（期）: 2009,（1）
• 页码范围: 50-54
• 页数: 5页
• 语种: 英文
• DOI: 10.1007s12404-009-0110-0

摘要

A study of the characteristics of the accumulative rock failure and its evolution by application of the group renormalization method were presented.In addition,the interaction and long-range correlated effects between the immediate neighboring units was studied.The concept of mechanical transference for model OFC,employed in the study of self-organized criticality,and the coefficient a were introduced into the calculation model for group renormalization.With the introduction,mechanisms for the drastic increase and de-crease of failure intensity of rocks were investigated under similar macro-conditions.