Multiscale modeling of geomaterials subjected to environmental loads

环境载荷作用下岩土材料的多尺度建模

• 批准号: 5905-2013
• 负责人: Pietruszczak, Stanislaw
• 金额: $ 1.75万
• 依托单位: McMaster University
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2016
• 资助国家: 加拿大
• 起止时间: 2016-01-01 至 2017-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=592822
• 关键词: Multiscale; modeling; geomaterials; subjected; environmental

The proposed research is related to modeling of mechanical and hydraulic response of geomaterials subjected to environmental influences. It is recognized that climate change will have a direct impact on a wide range of physicochemical processes in soils thereby modifying their microstructure and affecting their properties. Therefore, the focus in this research is on the response of soils to extreme weather conditions, viz. moving freezing front and a heavy rainfall. The major topics that will be addressed include: (i) modeling of the mechanical response of frost-susceptible soils, (ii) modeling of the chemo-mechanical interaction in soils due to increased rainfall and (iii) influence of evolving microstructure on the hydraulic/strength properties of soils.

拟议的研究是有关的建模受到环境影响的岩土材料的力学和水力响应。人们认识到，气候变化将直接影响土壤的各种物理化学过程，从而改变其微观结构并影响其性质。因此，本研究的重点是土壤对极端天气条件的响应，即移动冻结锋和暴雨。将解决的主要问题包括：（一）模拟的机械响应的霜冻敏感的土壤，（二）模拟的土壤中的化学-机械相互作用，由于降雨量增加和（iii）不断变化的微观结构对土壤的水力/强度性能的影响。