An Investigation of Rainfall-Induced Landslides From the Pre-Failure Stage to the Post-Failure Stage Using the Material Point Method

The kinematic behavior of rainfall-induced landslides from the pre-failure stage to post-failure stage contains important information for risk assessment and management. Because a complex relationship exists between rainfall conditions, pore water pressure, soil strength, and movement rates, a numer...

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Autores principales:	Wei-Lin Lee, Mario Martinelli, Chjeng-Lun Shieh
Formato:	article
Lenguaje:	EN
Publicado:	Frontiers Media S.A. 2021
Materias:	landslide rainfall boundary infiltration unsaturated soil material point method Science Q
Acceso en línea:	https://doaj.org/article/27dea4bbd245442e832c5999e4c963bb
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id	oai:doaj.org-article:27dea4bbd245442e832c5999e4c963bb
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spelling	oai:doaj.org-article:27dea4bbd245442e832c5999e4c963bb2021-11-11T09:52:56ZAn Investigation of Rainfall-Induced Landslides From the Pre-Failure Stage to the Post-Failure Stage Using the Material Point Method2296-646310.3389/feart.2021.764393https://doaj.org/article/27dea4bbd245442e832c5999e4c963bb2021-11-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/feart.2021.764393/fullhttps://doaj.org/toc/2296-6463The kinematic behavior of rainfall-induced landslides from the pre-failure stage to post-failure stage contains important information for risk assessment and management. Because a complex relationship exists between rainfall conditions, pore water pressure, soil strength, and movement rates, a numerical model is the most efficient way to investigate the behavior of rainfall-induced landslides. In this study, the material point method (MPM) is used to investigate the dynamic behavior of landslides. First, the rainfall boundary conditions are extensively verified by comparing 1-D consolidation tests against other numerical solutions. Then, a numerical model is used to simulate a lab-scale rainfall-induced slope failure. A parametric study shows the influence of rainfall intensity on pore water pressure development, failure triggering time, surface displacement, and velocity. The use of the MPM provides a clear understanding in the failure mechanism and post-failure behavior of a rainfall-induced landslide.Wei-Lin LeeMario MartinelliChjeng-Lun ShiehFrontiers Media S.A.articlelandsliderainfall boundaryinfiltrationunsaturated soilmaterial point methodScienceQENFrontiers in Earth Science, Vol 9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	landslide rainfall boundary infiltration unsaturated soil material point method Science Q
spellingShingle	landslide rainfall boundary infiltration unsaturated soil material point method Science Q Wei-Lin Lee Mario Martinelli Chjeng-Lun Shieh An Investigation of Rainfall-Induced Landslides From the Pre-Failure Stage to the Post-Failure Stage Using the Material Point Method
description	The kinematic behavior of rainfall-induced landslides from the pre-failure stage to post-failure stage contains important information for risk assessment and management. Because a complex relationship exists between rainfall conditions, pore water pressure, soil strength, and movement rates, a numerical model is the most efficient way to investigate the behavior of rainfall-induced landslides. In this study, the material point method (MPM) is used to investigate the dynamic behavior of landslides. First, the rainfall boundary conditions are extensively verified by comparing 1-D consolidation tests against other numerical solutions. Then, a numerical model is used to simulate a lab-scale rainfall-induced slope failure. A parametric study shows the influence of rainfall intensity on pore water pressure development, failure triggering time, surface displacement, and velocity. The use of the MPM provides a clear understanding in the failure mechanism and post-failure behavior of a rainfall-induced landslide.
format	article
author	Wei-Lin Lee Mario Martinelli Chjeng-Lun Shieh
author_facet	Wei-Lin Lee Mario Martinelli Chjeng-Lun Shieh
author_sort	Wei-Lin Lee
title	An Investigation of Rainfall-Induced Landslides From the Pre-Failure Stage to the Post-Failure Stage Using the Material Point Method
title_short	An Investigation of Rainfall-Induced Landslides From the Pre-Failure Stage to the Post-Failure Stage Using the Material Point Method
title_full	An Investigation of Rainfall-Induced Landslides From the Pre-Failure Stage to the Post-Failure Stage Using the Material Point Method
title_fullStr	An Investigation of Rainfall-Induced Landslides From the Pre-Failure Stage to the Post-Failure Stage Using the Material Point Method
title_full_unstemmed	An Investigation of Rainfall-Induced Landslides From the Pre-Failure Stage to the Post-Failure Stage Using the Material Point Method
title_sort	investigation of rainfall-induced landslides from the pre-failure stage to the post-failure stage using the material point method
publisher	Frontiers Media S.A.
publishDate	2021
url	https://doaj.org/article/27dea4bbd245442e832c5999e4c963bb
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An Investigation of Rainfall-Induced Landslides From the Pre-Failure Stage to the Post-Failure Stage Using the Material Point Method

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