A multi-scale approach to investigate desiccation cracking in clayey soils

研究粘土干燥开裂的多尺度方法

• 批准号: DP160100775
• 负责人: Prof Ha Bui
• 金额: $ 23.81万
• 依托单位: Monash University
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2016
• 资助国家: 澳大利亚
• 起止时间: 2016-01-01 至 2019-06-30
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP160100775
• 关键词: multi; scale; approach; investigate; desiccation

The project plans to develop a model of the mechanism of drying shrinkage and associated cracking in soils. Soil desiccation cracking can adversely affect the stability and performance of many vital geo-infrastructures. For example, desiccation cracks have contributed to dam and slope failures incurring significant damages. Our understanding of the mechanism of drying shrinkage cracking and ways to control or avoid such cracking in soils is not yet fully developed. This project aims to advance knowledge of the nature of crack initiation and propagation in clayey soils induced by moisture evaporation, through the use of advanced experimental and modelling techniques. Outcomes are expected to lead to new continuum models for reliable prediction of soil desiccation cracking.

该项目计划开发土壤干燥收缩和相关开裂机制的模型。土壤干燥开裂会对许多重要地质基础设施的稳定性和性能产生不利影响。例如，干燥裂缝导致大坝和边坡溃坝，造成重大损失。我们对干燥收缩开裂的机制以及控制或避免土壤开裂的方法的理解尚未完全成熟。该项目旨在通过使用先进的实验和建模技术，增进对水分蒸发引起的粘土中裂纹萌生和扩展性质的了解。预计结果将产生新的连续模型，以可靠地预测土壤干燥开裂。