Liquefaction failures of intermediate soils. The aims of the project are to provide new data on the conditions under which liquefaction failures can occur in soil materials that are intermediate between sand and clay, and to develop models to describe this behaviour. This project addresses two significant problems: liquefaction failures which occur in silty sediments on continental slopes and produce tsunamis, and liquefaction in unsaturated ship cargos with intermediate gradings which lead to s ....Liquefaction failures of intermediate soils. The aims of the project are to provide new data on the conditions under which liquefaction failures can occur in soil materials that are intermediate between sand and clay, and to develop models to describe this behaviour. This project addresses two significant problems: liquefaction failures which occur in silty sediments on continental slopes and produce tsunamis, and liquefaction in unsaturated ship cargos with intermediate gradings which lead to ship losses. The outcomes of the project are expected to be greater understanding of the factors controlling liquefaction in silty materials, a better understanding of the risk of submarine landslides, and models which can be used to predict the conditions under which liquefaction can occur in ship cargos.Read moreRead less
Liquefaction of silty soils: Micromechanics, modelling and prediction. 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 liquefac ....Liquefaction of silty soils: Micromechanics, modelling and prediction. 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.Read moreRead less