岩石蠕变变形的混沌特性研究

Study of chaotic characteristics of rock creep

对岩石蠕变变形分别进行了流变模型法和试验法的混沌特性研究,分析了其混沌行为的演化过程、进入混沌的通道以及混沌发生的条件,讨论了两种方法的现场工程应用问题以及相关参数的理论和实践意义。研究表明,岩石蠕变变形的发展过程是一种从有序-混沌(无序)-有序的过程。最后,根据岩石蠕变变形的孕育过程具有混沌特征的这一特性,提出控制岩石蠕变系统的应力水平是避免其混沌发生的主要途径。

The chaotic characteristics of creep deformation of rock are studied based on rheological model method and test method; and the analysis of evolution process of chaotic behavior and the route to chaos as well as the occurrence condition of chaos are given. The engineering applications of the two methods and the theoretical and practical meanings of its parameters are also discussed. The results show that the development of rheological deformation of rock can be described as that： order-chaos（disorder）-order. Based on the property of development of creep deformation of rock has chaotic characteristics, the conclusion of controlling the stress level of rock creep system is the main method of avoiding chaos occurrence which is presented in the end.