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Strength softening models of soil and its application in rainfall-induced landslide simulation 被引量:3

Strength softening models of soil and its application in rainfall-induced landslide simulation
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摘要 In this study, strength softening models are developed for exploring rainfall-induced landslide mechanism based on Mohr Coulomb strength theory with both saturation degree and temporal evolution into consideration. According to the ratio of two time scales available, the model can be classified into three categories, i.e., instant softening model, delay softening model, and coupling softening model. Corresponding evolution functions are specified to represent these kinds of softening processes and then applied to simulate landslide of homogeneous slopes triggered by rainfall, therefrom, useful conclusions can be drawn in the end. In this study, strength softening models are developed for exploring rainfall-induced landslide mechanism based on Mohr Coulomb strength theory with both saturation degree and temporal evolution into consideration. According to the ratio of two time scales available, the model can be classified into three categories, i.e., instant softening model, delay softening model, and coupling softening model. Corresponding evolution functions are specified to represent these kinds of softening processes and then applied to simulate landslide of homogeneous slopes triggered by rainfall, therefrom, useful conclusions can be drawn in the end.
出处 《Theoretical & Applied Mechanics Letters》 CAS 2013年第4期23-28,共6页 力学快报(英文版)
基金 supported by the National Natural Science Funds of China (10932012)
关键词 homogeneous slope numerical simulation strength softening model rainfall-induced landslide geological disaster homogeneous slope, numerical simulation, strength softening model, rainfall-induced landslide, geological disaster
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