Reinforcing river and lake ice covers to maintain their load-bearing capacity in a warming climate

加固河流和湖泊的冰盖，以在气候变暖时保持其承载能力

• 批准号: 505581-2016
• 负责人: Lindenschmidt, KarlErich
• 金额: $ 1.8万
• 依托单位: University of Saskatchewan
• 依托单位国家: 加拿大
• 项目类别: Engage Grants Program
• 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=609776
• 关键词: Reinforcing; river; lake; ice; covers

Canada has experienced an annual average surface air temperature increase of 1.5°C from 1950-2010. Stronger warming trends have been found for the north and west of Canada, with the greatest warming occurring in winter and spring. Warmer winters lead to less thickening and reduced structural competence of river and lake ice covers which are so vital in Canada's north for winter road crossings and construction platforms on rivers and lakes. One method of maintaining and increasing ice cover strength, which the ice engineering company NOR-EX wishes to investigate, along with the University of Saskatchewan's Global Institute for Water Security, is integrating reinforcing materials into the ice during the freezing period. Using computer models they wish to determine the load-bearing capacity of composite materials, where freshwater ice is the primary matrix and environmental-friendly materials are the secondary, reinforcing matrix. Guidance in the material types and design will help NOR-EX propose new methods to clients for extending the duration of ice cover competency and maintaining their competitiveness in load-bearing ice cover design.

从1950年到2010年，加拿大的地表平均气温每年上升1.5摄氏度。加拿大北部和西部出现了更强烈的变暖趋势，冬季和春季变暖最严重。温暖的冬季导致河流和湖泊冰盖厚度减少，结构能力降低，这对加拿大北部冬季的道路穿越和河流和湖泊上的建筑平台非常重要。冰工程公司NOR-EX希望与萨斯喀彻温省大学的全球水安全研究所一起研究的一种保持和增加冰盖强度的方法是在冰冻期间将加固材料整合到冰中。他们希望利用计算机模型来确定复合材料的承载能力，其中淡水冰是主要的基质，环境友好的材料是次要的加固基质。对材料类型和设计的指导将有助于NOR EX向客户提出新的方法，以延长冰盖能力的持续时间，并保持其在承重冰盖设计方面的竞争力。