Figure 20
From: Evolution process and failure mechanism of a large expressway roadside landslide
Setting and current situation of intercepting ditches and drainage ditches that block the runoff on slope surface at different time nodes. (a) The slope in a critical sliding state after extreme rainfall; (b,c) drainage ditch and intercepting ditch set on the mountain above the slope top; (d) excavation area covered by vegetation gradually; (e,f) current status of the Baguang Toll Landslide.
