重正化模型及其在岩石失稳破坏中的应用

基于岩石强度的概率分布假设,根据自相似分形的观点,采用重正化群模型对岩石失稳破坏过程中的临界现象进行了研究,得到了岩石材料失稳破坏的理论临界点及岩体稳定性的发展方向.通过实验数据与重正化群模型的计算结果的对比,证明了重正化破坏模型能准确地模拟岩石的失稳破坏,并能有效地推测出破坏的临界点,建立了判断岩石稳定状态的判据.

Renormalization Model and Its Application in Instability and Failure of Rock

The critical phenomenon in rock failure is analyzed with renormalization model on the assumption that strength of rock fallows probability distribution and self-similar characteristic. The experimental results are introduced. The calculation results given by renormalization model are in good accordance with experimental results. This show that the theoretical failure point of rock and evolutionary process of rock mass can be simulated accurately by renormalization model. Normalization model can be adopted to judge whether the rock start to fail or not.