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Title:
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Run-out of landslides in brittle soils: an MPM anlysis
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Author:
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Yerro Colom, Alba; Alonso Pérez de Agreda, Eduardo; Pinyol Puigmartí, Núria Mercè
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Other authors:
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Universitat Politècnica de Catalunya. Departament d'Enginyeria Civil i Ambiental; Universitat Politècnica de Catalunya. MSR - Mecànica del Sòls i de les Roques |
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Abstract:
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In this paper a slope stability problem due to an increase of the pore pressure is analysed by means of the material point method (MPM). A strain softening model is implemented and the progressive failure is examined in terms of mobilized shear strain. A parametric study is performed varying the strength decay but maintaining a common peak envelope. The influence of the brittleness of the material, evaluated in
terms of the brittleness index (IB) proposed by Bishop (1967), in run-out and velocity of unstable slopes is examined. The initiation of motion in the defined slope is observed for values of IB>0.5 and a well correlation between run-outs and brittleness is found. It can be concluded that MPM is able to simulate both the initiation of the failure and the post-failure stages. |
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Subject(s):
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-Àrees temàtiques de la UPC::Enginyeria civil::Geotècnia::Mecànica de sòls
-Slopes (Soil mechanics)--Stability--Mathematical models
-Talussos (Mecànica dels sòls) -- Models matemàtics |
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Rights:
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Document type:
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Article - Published version
Conference Object |
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Published by:
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CRC Press
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