LIU Zhen, ZHOU Cui-ying, FANG Ming. Research on consistency of nonlinear evolution models and unity of failure criteria for tunnel[J]. 2012, 33(5).DOI:
Nonlinear dynamics evolution model & criterion of tunnel and energy evolution model & criterion of tunnel are to describe and judge for the same system from dynamic process and energy state. From the description of two models to the zonal disintegration in surrounding rocks
the consistency of two models in space is proved by the relation between thermodynamic entropy S
Kolmogorov entropy and correlation dimension of nonlinear dynamics. The consistency of two models in time by the relation between evolution time of two models. According to the description of two failure criteria to stability state of different evolution stages
from division of system evolution stages by them
the unity of two failure criteria under the conditions of regular development and salutatory development is analyzed. This research more explained nonlinear mechanism of tunnel unstable failure while two models and criteria are validated each other. This research has a great significance for the stability judgment of surrounding rocks of tunnels.