Coupled processes in geomaterial degradation and instability with special reference to soil-environment interaction

岩土材料退化和不稳定的耦合过程，特别是土壤与环境的相互作用

• 批准号: 250338-2011
• 负责人: Guo, PeiJun
• 金额: $ 1.46万
• 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: 2013
• 资助国家: 加拿大
• 起止时间: 2013-01-01 至 2014-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=525021
• 关键词: Coupled; processes; geomaterial; degradation; instability

Safe operation and economic design of infrastructure, such as dams, highway pavements, and municipal utilities including sewage and water supply pipelines, are extremely important for Canadian economic development. Owing to observed impact of climate change, the conventional geotechnical engineering technologies should be adapted to accommodate the potential risk associated with environmental and climate change (e.g., extensive precipitation, milder winters and increased number of freeze-thaw cycles, degradation of permafrost in the North). For example, degradation of pavement subgrade soils owing to repetitive traffic loading and seasonal environmental change (e.g., freezing-thawing, drying-wetting) costs millions of dollars every year for maintaining the Canadian highways in good condition.

基础设施的安全运行和经济设计，如水坝、公路路面和市政公用设施，包括污水和供水管道，对加拿大经济发展极为重要。由于观测到的气候变化的影响，传统的岩土工程技术应进行调整，以适应与环境和气候变化相关的潜在风险（例如，北方降水量大、冬季较温和、冻融循环次数增加、永久冻土退化）。例如，由于反复的交通负荷和季节性环境变化（例如，冻融、干湿）每年花费数百万美元用于维护加拿大高速公路的良好状况。