Evaluation of geosynthetic reinforced pavements by field and laboratory testing integrated with thermo-hydro-mechanical modeling

通过现场和实验室测试与热水力学模型相结合对土工合成材料加固路面进行评估

• 批准号: 549773-2020
• 负责人: Yin, ShundeS
• 金额: $ 2.87万
• 依托单位: University of Waterloo
• 依托单位国家: 加拿大
• 项目类别: Alliance Grants
• 财政年份: 2022
• 资助国家: 加拿大
• 起止时间: 2022-01-01 至 2023-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=748808
• 关键词: Evaluation; geosynthetic; reinforced; pavements; field

Titan Environmental Containment (TITAN), established in 2006, is a leader in the geosynthetics field in Canada. TITAN conducted a few in-situ evaluations of geogrid-reinforced pavement in Canada and showed that geogrids can mitigate crack propagation. TITAN also developed and deployed composite products of geogrids and geotextiles that has great potential to improve the nation's roadways in Canada's unique geography and environment. Considering there is strong demand for these emerging products, TITAN has partnered with the Center for Pavement and Transportation Technology (CPATT) at the University of Waterloo (UW) in this project toward the development of high-performance pavement geosynthetics. The objectives of the projects include: (1)develop advanced numerical models to investigate the effectiveness of geosynthetics as a reinforcement of pavement; (2) conduct field instrumentation to measure pavement responses and quantify the impact of geosynthetics; (3) predict the long-term performance of geosynthetic-reinforced pavement; (4) develop the design and construction guidelines of geosynthetic-reinforced pavement with updated information on thermal, hydraulic, and mechanical properties of materials. By completion of this research project, the improved geosynthetics for pavement structure will be developed for TITAN. These products are expected to have great potential to reduce compressive and tensile strains caused by traffic loading from above and frost heave from the bottom, leading to the reduction of pavement layer thickness or extension of pavement service life. The project will accelerate deployment of these new technologies in Canada and improve competitiveness of the partner company but also the broader Canadian market for these products. The essential outcome of this research project will benefit Canada in validating and quantifying the benefits of geosynthetic - reinforced pavement, especially in cold regions, when incorporated into the pavement design method and used as the guidance for construction.

泰坦环境遏制（Titan）成立于2006年，是加拿大地球合成领域的领导者。泰坦（Titan）对加拿大的地质增强物质人行道进行了一些原位评估，并表明地理植物可以减轻裂纹传播。 Titan还开发了并部署了地质和土工布的复合产品，在加拿大独特的地理和环境中，有很大的潜力来改善美国的道路。 考虑到对这些新兴产品的需求很大，泰坦已与滑铁卢大学（UW）（UW）的路面和运输技术中心合作，旨在开发高性能的路面地质地球仪。项目的目标包括：（1）开发高级数值模型，以研究地质合成剂的有效性作为人行道的增强； （2）进行现场仪器以测量路面反应并量化地质合成剂的影响； （3）预测土工合成强化路面的长期性能； （4）制定了地质加固路面的设计和施工指南，并具有有关材料的热，液压和机械性能的最新信息。 通过完成该研究项目，将为泰坦开发改进的路面结构的地理合成剂。预计这些产品具有巨大的潜力，可以减少由上面的交通负荷引起的压缩和拉伸菌株，从底部和霜冻升起，导致路面层厚度的降低或路面服务寿命的扩展。 该项目将加速这些新技术在加拿大的部署，并提高合作伙伴公司的竞争力，也可以提高加拿大产品的更广泛的市场。该研究项目的基本结果将使加拿大在验证和量化地质合成的益处 - 加强路面的好处，尤其是在寒冷地区，当将其纳入路面设计方法并用作建筑指南时。