Modelling creep and time-dependency in unsaturated soils

非饱和土中的蠕变和时间依赖性建模

• 批准号: DP190103771
• 负责人: Prof Nasser Khalili
• 金额: $ 22.84万
• 依托单位: The University of New South Wales
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2019
• 资助国家: 澳大利亚
• 起止时间: 2019-01-01 至 2023-06-01
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP190103771
• 关键词: Modelling; creep; time; dependency; unsaturated

This project aims to present the most complete and rigorous modelling framework for creep and time-dependent behaviour of unsaturated soils in infrastructure. The project will address previously neglected aspects of soil behaviour, such as gradual changes in physical properties with time and strain-rate dependency. The project is expected to enable better predictions of infrastructure performance, improve confidence in design, and avoid unwarranted over-design and the considerable cost this imposes. The project will provide a fully validated predictive computational modelling tool for quantitative assessment of long-term performance and stability of infrastructure such as dams, embankments, tunnels, slopes, buildings and foundations.

该项目旨在为基础设施中非饱和土的蠕变和时间依赖性行为提供最完整和最严格的建模框架。该项目将解决以前被忽视的土壤行为方面，如物理性质随时间和应变率依赖性的逐渐变化。预计该项目将能够更好地预测基础设施的性能，提高设计的信心，并避免不必要的过度设计和由此带来的巨大成本。该项目将提供一个经过充分验证的预测计算建模工具，用于定量评估大坝、堤坝、隧道、斜坡、建筑物和地基等基础设施的长期性能和稳定性。