岩体损伤演化的协同效应及其热弹性不稳定性

将岩体受载破坏看成岩体本身各组成部分在外界作用下的自组织行为。论证了岩体损伤演化的自组织特征;考虑热力学参量(温度、自由能和熵等)在岩体损伤演化中的作用,并综合力学参量和热学参量,构造系统的动力学方程;最后从协同学观点出发,将岩体的破坏过程视为非平衡相变现象,利用协同学的方法进行研究,通过线性稳定性分析,探讨从这一角度寻求岩体的弹性极限的方法。该方法为进一步研究岩体的力学性能和岩体损伤破坏的防护提供理论依据且具有一定的理论价值和工程实践意义。

Synergetics effect and thermo elastic instabilities of evolution of rock mass damage

Destruction of rock mass under loads is thought as a result of outside force in traditional views,while the author looks on it as a self-organization of components of rock mass.Therefore,this paper demonstrates the self-organized characteristic of the evolvement of rock mass damage,constructs the dynamic equations of the system thinking of the action of thermodynamic parameter such as temperature,freedom energy and entropy etc.in the evolvement of rock mass damage,looks on the damage course of rock mass as imbalance changes in the view of synergetics,discusses the method of finding out the elastic terminal of rock mass through analysis of linear stability,offers academic gist for improving rock mass mechanic performance and the study on defending rock mass damage,which have certain academic value and practice significance.