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

Journal of Geology


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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 pressures at depth. The model approximates rainfall infiltration as a sinusoidally varying flux over time and uses physical parameters that can be determined independently. Using a comprehensive data set from an intensively monitored landslide, I demonstrate that the model is capable of distinguishing movement-inducing rainstorms. -Author

Additional publication details

Publication type Article
Publication Subtype Journal Article
Title A pore-pressure diffusion model for estimating landslide-inducing rainfall
Series title Journal of Geology
Volume 102
Issue 6
Year Published 1994
Language English
Larger Work Type Article
Larger Work Subtype Journal Article
Larger Work Title Journal of Geology
First page 709
Last page 717
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