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首页> 外文期刊>Granular matter >Liquefaction induced permanent ground deformations and energy dissipation analysis based on smoothed particle hydrodynamics method (SPH): validation by large-scale model tests
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Liquefaction induced permanent ground deformations and energy dissipation analysis based on smoothed particle hydrodynamics method (SPH): validation by large-scale model tests

机译：Liquefaction induced permanent ground deformations and energy dissipation analysis based on smoothed particle hydrodynamics method (SPH): validation by large-scale model tests

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摘要

Abstract To accurately simulate the permanent displacements caused by liquefaction in saturated sandy soils, a mesh-free method named smoothed particle hydrodynamics (SPH) with a suitable soil behavior model and considering the interaction between soil and water phases has been developed in this study. The considered soil–water coupled phase plays the most critical role in more accurate modeling of soil failure during liquefaction and post-liquefaction processes. The results of the developed SPH code have been validated in the present study by performing some large-scale model tests in the laboratory using a shaker and a shaking table. The comparison between the SPH simulated displacement and the results of shaking table tests showed a good agreement, which proved that the proposed SPH framework could be a suitable tool for simulating and estimating the liquefaction-induced displacements. Moreover, the shear stress–strain response and subsequently the energy dissipated in soil were investigated in the shaking table test setting and a close correlation was observed between the excess pore water pressure and energy dissipation during liquefaction.

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