The Stability Analysis of Tunnel Lining Structure with Seismic Excitation Based on the Energy Evaluation Principle

Earthquakes are vibrations induced by the rapid releases of large quantities energy from crustal movements. During seismic excitation, there kinetic energy, damping and strain acting on tunnel structure. Based indexes total releasable elastic dissipated this paper proposes three evaluation criteria for structure, which applied to optimization aseismic design cross-sectional shape material property It can be concluded that peak values accumulated at spandrel arch springing significantly larger than other positions, indicates strengths most influential factor damage Considering factor, width-to-height ratio 1.33 Poisson’s 0.3 determined as optimal property, respectively. Furthermore, analyzing relationship between internal input structure with excitation proposing an equation dynamic stability stabilities different PGAs analyzed; it value wave acceleration, longer instable period greater degree instability. The derived equations used references analysis conclusions contribute lining.