Liu, Z.; Zhou, C., and Lu, Y., 2015. Dynamic evolution model and critical failure criterion of the instability evolution for submarine tunnel system.

Dynamic evolution model and critical failure criterion of the instability evolution for submarine tunnel system are studied in this paper. Based on the synergetic theory and chaotic dynamic theory, nonlinear dynamics evolution characteristics for the whole process of the tunnel deformation and instability are presented. The fluctuation correlation mechanism of the whole tunnel system is revealed by systematical analysis, and then the nonlinear dynamic evolution model is established. Combined the practice project with the length of time sequence for general deformation monitoring data as well as the effective analysis on chaotic dynamics, the dynamical criterion of the stability evolution process of the tunnel system is conducted separately under different data conditions (more than 3,000 and less than 3,000). According to unstable and failure features of each evaluating stage of the tunnel system, the dynamic criterion is proposed. It provides a significant guideline for the calculation and analysis of submarine tunnel stability.