Mechanistic characterization and modeling of road materials and structures

道路材料和结构的机械表征和建模

• 批准号: 217033-2006
• 负责人: Berthelot, Curtis
• 金额: $ 1.6万
• 依托单位: University of Saskatchewan
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2006
• 资助国家: 加拿大
• 起止时间: 2006-01-01 至 2007-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=332145
• 关键词: Mechanistic; characterization; modeling; road; materials

Road transport plays a direct role in our economy.  This is particularly the case in resource based jurisdictions - like Saskatchewan.  Recent economic pressures have resulted in the drive towards larger, more cost-effective commerical trucks, which have resulted in increased load spectra by up to 800 percent on some Saskatchewan roads.  However, strengthening significant amounts of the road system using conventional materials and structures is not economically sustainable, nor practical.  In addition, until very recently, phenomological-empirical based methods have been used for the structural design and management of the pavement system.  These traditional methods are limited because they cannot explicitly quantify performance impacts of increasing traffic load spectra, materials advancements, innovative road structures, etc.   Therefore, I am developing mechanistic based road materials and structural analysis methods that will enable road engineers to develop innovative road strengthening systems that significantly improve the cost effectiveness of strengthening roads.  Preserving roads structurally and facilitating efficient commerical transportation, is a primary objective of my research.  My research is dedicated to developing a rational mechanistic based road engineering framework to reliably characterize and model alternative pavement materials and structures, and to integrate advanced lab and field engineering with the latest technologies such as intelligent transportation systems.  The potential benefits of a rational scientific framework to better engineer and manage road systems structurally, and optimize materials resources are significant.  Having the ability to reliably engineer the renewal of existing road systems will also reduce the need for non-renewable quality aggregate sources and improve whole life pavement performance.  Moreover, the economics associated with innovative strengthening of road structures will also reduce energy requirements helping Canada meet its Kyoto committments.

公路运输在我们的经济中发挥了直接作用。在基于资源的司法管辖区（例如萨斯喀彻温省）中，情况尤其如此。最近的经济压力导致迈向更大，更具成本效益的商业卡车，这导致一些萨斯喀彻温省的道路增加了800％的负载光谱。但是，使用常规材料和结构加强大量的道路系统在经济上也不可持续，也不是实用。此外，直到最近，基于现象的经验方法已用于人行道系统的结构设计和管理。这些传统方法之所以受到限制，是因为它们无法明确量化增加交通负荷谱，材料进步，创新的道路结构等的性能影响。我正在开发基于机械的道路材料和结构分析方法，这些方法将使公路工程师能够开发创新的道路强化系统，从而显着提高增强道路的成本成本有效性。在结构上保存道路并支持有效的商业运输，这是我研究的主要目标。我的研究致力于开发一个理性的基于机械的道路工程框架，以可靠地表征和建模替代路面材料和结构，并将高级实验室和现场工程与最新技术（例如智能运输系统）整合在一起。理性科学框架的潜在好处可以在结构上更好地工程和管理道路系统，并优化材料资源。具有可靠地设计现有道路系统的能力还将减少对非可再生质量质量汇总来源的需求，并提高整个生活路面性能。此外，与道路结构的创新加强相关的经济学还将减少能源需求，以帮助加拿大满足其京都的承诺。