Liquefaction of silty soils: Micromechanics, modelling and prediction

粉质土壤的液化：微观力学、建模和预测

• 批准号: DP170103793
• 负责人: A/Prof Giang Nguyen
• 金额: $ 19.43万
• 依托单位: The University of Adelaide
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2017
• 资助国家: 澳大利亚
• 起止时间: 2017-05-25 至 2021-06-25
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP170103793
• 关键词: Liquefaction; silty; soils; Micromechanics; modelling

The project aims to develop a numerical approach to understand liquefaction in silty soils. Liquefaction of silty soils in submarine landslides, mine tailings dam failures and cargo liquefaction in vessels carrying iron/nickel ores can cause property loss and be fatal. This project will bridge the behaviours across the scales and deliver constitutive models that possess grain scale mechanisms for better prediction of liquefaction induced failure at the large scales. The expected outcomes are liquefaction criteria for silty soils with different silt contents and numerical tools to predict the onset of liquefaction and flow of liquefied soils.

该项目旨在开发一种数值方法来了解粉土液化。海底滑坡中粉质土的液化、尾矿坝的破坏以及运载铁/镍矿的船只中货物的液化都可能造成财产损失并造成死亡。该项目将跨越尺度的行为，并提供具有颗粒尺度机制的本构模型，以更好地预测大尺度液化引起的破坏。预期的成果是不同粉土含量的粉土液化标准和数值工具，以预测液化和液化土的流动开始。