<p>A tunnel project in the mountainous region of southwest China was analyzed using the developed bedding slope–tunnel conceptual model. A series of triaxial-loaded shaking-table tests were conducted to investigate the dynamic response characteristics of the lining at the exit of a multi-stratum sloping tunnel during seismic landslides. Detailed analyses were performed in terms of the slope-failure phenomena, displacements, acceleration amplification coefficients, critical slowing characteristics, tunnel failure phenomena, tunnel lining forces, and deformations. The conclusions are as follows: under seismic conditions, blocks within the bedding slope slid along the bedding plane. The deposit layer sheared, broke down, and eventually slid along the stratigraphic boundary. The slope failed after a seismic acceleration of 0.6&#xa0;g. An increase in the damping ratio led to greater energy dissipation, resulting in a significant decrease in the acceleration amplification coefficient, with a maximum reduction of 35%. The maximum dynamic earth pressure on the lining was primarily concentrated at the arch roof. In the deeply buried section, the deformation of the lining at the arch shoulder and arch foot areas, oriented at a conjugate 45° angle, was significantly greater than in other locations. The maximum residual deformation of the tunnel invert in the sliding region occurred when the slope slid, causing the inverted arch to be prone to cracking. The critical slowing characteristics of slopes under seismic action are obvious, and the precursor point, where the autocorrelation coefficient fluctuates and rises when the slope is under natural conditions and suddenly drops and then rises sharply when seismic action occurs can be taken as the threshold value for the early warning of slope disasters.</p>