Interaction between landsliding materials and the underlying erodible bed in a loess flowslide

摘要: Abstract Loess landslides exhibit strong interactions with the terrace sediments of Jing River on South Jingyang Platform, Jingyang, Xi'an, China. Analysis past landslide events revealed that sand layer this was thrust up to surface, accompanied by other carrying. This led formation a nappe structure over long distance. We performed ring shear tests examine behavior layer, finding saturated highly susceptible liquefaction-induced failure. The groundwater level study area is high, resulting in near-saturation layer. Therefore, topographic interferences contributed additional variables and increased interaction complexities. Simulations indicated liquefied compressed forced. Due absence constraints, near bottom slope sheared out relatively short On hand, particle interia constraints stable resulted distal part deposits being upward ground. Finally, an initiation-movement model loess flowslides proposed. It describes static liquefaction occurrence flowslides. Collisions between from platform edge sands. experienced four stages as they moved: scraping collisions, floating scrapes, folded thrusts, accumulation.