Complex loading of buried structures and foundations

埋地结构和地基的复杂荷载

• 批准号: 312016-2010
• 负责人: Newson, Timothy
• 金额: $ 1.75万
• 依托单位: University of Western Ontario
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2014
• 资助国家: 加拿大
• 起止时间: 2014-01-01 至 2015-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=548596
• 关键词: Complex; loading; buried; structures; foundations

The aim of this work will be the investigation of the behaviour of two types of buried foundation when subjected to complex combinations of vertical, horizontal and moment loads under static and cyclic conditions. The 'geotechnical structures' to be investigated are wind turbine foundations and tree root systems. Newly developed design methods utilised in the offshore foundation industry will be validated and calibrated for use with these new foundations, supported by data from field testing, scaled physical model testing and computer based finite element analysis. Refinement of wind farm turbine foundation design tools would be an extremely valuable and cost effective contribution to the renewable energy industry. Likewise, understanding the impact of extreme wind storms such as tornadoes, severe thunderstorms, and winter storms on the built environment in Canada is significant. Understanding of the behaviour of these geotechnical foundation systems and optimisation of analytical methods will provide improvements in design and prediction of their behaviour, and provide progress in their areas of application. Over the funding period, data and knowledge accrued from the research will be utilized by engineers working in construction, geosciences, energy and the offshore industry. The proposed infrastructure will enable the creation of (i) knowledge of structures and geotechnical processes, (ii) databases of field-scale behaviour, (iii) design and construction information and (iv) data for numerical and analytical method validation. Due to the significant size of the industries supported by geotechnical engineering, optimization and development of geotechnical design and practice will have great economic advantages and reduce risks for people, business and property in Canada. Geotechnical engineers are highly sought after and there is a drastic shortage of trained individuals across Canada and North America. The requested funds would provide training and experience for 17 highly qualified personnel over the five years of the project.

这项工作的目的是调查两种类型的埋地基础在静态和循环条件下受到垂直、水平和弯矩载荷的复杂组合时的行为。要研究的“土工结构”是风力涡轮机的基础和树根系统。在现场测试、比例物理模型测试和基于计算机的有限元分析数据的支持下，将验证和校准用于海上基础行业的新开发设计方法，以便与这些新基础一起使用。改进风力涡轮机基础设计工具将对可再生能源产业做出极具价值和成本效益的贡献。同样，了解极端风暴如龙卷风、严重雷暴和冬季风暴对加拿大建筑环境的影响也很重要。了解这些岩土基础系统的行为和分析方法的优化将改善其行为的设计和预测，并在其应用领域取得进展。在资助期内，从研究中积累的数据和知识将被建筑、地球科学、能源和海上工业的工程师利用。拟议的基础设施将能够创造(i)结构和岩土工程过程的知识，（ii）现场尺度行为的数据库，（iii）设计和建筑资料以及（iv）数值和分析方法验证的数据。由于岩土工程所支持的产业规模巨大，岩土工程设计和实践的优化和发展将具有巨大的经济优势，并降低加拿大人民，企业和财产的风险。岩土工程师备受追捧，在加拿大和北美，训练有素的人员严重短缺。所要求的资金将在项目的五年期间为17名高度合格的人员提供培训和经验。