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Potential for seepage erosion of landslide dam Potential for seepage erosion of landslide dam

The failure potential of the debris-avalanche dam at Castle Lake near Mount St. Helens, Washington, by three processes of seepage erosion (1) Heave; (2) piping; and (3) internal erosion, is examined. Results indicated that the dam is stable against piping but potentially locally unstable against heave. -from Authors
Authors
W. Meyer, R. Schuster, M. Sabol

The importance of earthquake-induced landslides to long-term slope erosion and slope-failure hazards in seismically active regions The importance of earthquake-induced landslides to long-term slope erosion and slope-failure hazards in seismically active regions

This paper describes a general method for determining the amount of earthquake-induced landsliding that occurs in a seismically active region over time; this determination can be used as a quantitative measure of the long-term hazard from seismically triggered landslides as well as a measure of the importance of this process to regional slope-erosion rates and landscape evolution. The...
Authors
D. Keefer

A pore-pressure diffusion model for estimating landslide-inducing rainfall A pore-pressure diffusion model for estimating landslide-inducing rainfall

Many types of landslide movement are induced by large rainstorms, and empirical rainfall intensity/duration thresholds for initiating movement have been determined for various parts of the world. In this paper, I present a simple pressure diffusion model that provides a physically based hydrologic link between rainfall intensity/duration at the ground surface and destabilizing pore-water...
Authors
M.E. Reid

Modeling and analysis of the 1949 Narrows landslide, Tacoma, Washington Modeling and analysis of the 1949 Narrows landslide, Tacoma, Washington

A large landslide failed catastrophically along steep, 90-m (300-ft) high bluffs overlooking the waters of Puget Sound at Tacoma, Washington, in April of 1949, three days after the region was struck by a magnitude 7.1 earthquake. The area of failure was investigated to estimate the static and seismic stability of the pre-earthquake slope and to identify factors that contributed to the...
Authors
A.F. Chleborad
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