作者: Robert L. Schuster , John E. Costa
DOI:
关键词: Agricultural land 、 Geology 、 Landslide classification 、 Slump 、 Snowmelt 、 Hydrology 、 Aggradation 、 Debris 、 Landslide
摘要: The most common types of mass movements that form landslide dams are rock and soil slumps slides; mud, debris, earth flows: debris avalanches. initiation mechanisms for dam-forming landslides excessive rainfall snow melt, earthquakes. Most remarkable short-lived. In a sample 63 documented cases, 22 percent the failed in less than 1 day after formation, half within 10 days. Overtopping was by far frequent cause landslide-dam failure. Backwater flooding behind can inundate communities valuable agricultural land. Floods from failure smaller floods constructed impounding bodies water with same potential energy, but larger ice dams. Secondary effects failures include additional as reservoir levels drop rapidly, aggradation valleys upstream downstream dams, avulsive channel changes downstream.