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

Journal of Geology

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Abstract

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
Number of Pages:
9