Fig. 8
Longitudinal geomorphic evolution and bottom slope angle dynamics of breaches in cascade landslide dams during Test 1: (a) Longitudinal geomorphic evolution of the breach in Dam 1 over time, illustrating the progression of headward erosion and scour pit formation; (b) Temporal evolution of the bottom slope angle in Dam 1, showing the reduction in slope angle due to headward erosion and stabilization trends; (c) Longitudinal geomorphic evolution of the breach in Dam 2, highlighting the migration of the breach apex and scour pit dynamics; (d) Temporal evolution of the bottom slope angle in Dam 2, with trends indicating erosion and toe scouring; (e) Longitudinal geomorphic evolution of the breach in Dam 3, emphasizing the headward erosion progression; (f) Temporal evolution of the bottom slope angle in Dam 3, showing trends of erosion and stabilization.
