Deep Foundation Technologies for Infrastructure Development

加拿大目前正面临着基础设施老化的巨大挑战，我们60%的公共基础设施已经超过40年。这一重要基础设施由具有相当经济价值的不同类型的基础提供支持。因此，迫切需要新的高效基础技术来支持新的基础设施，并升级和延长现有基础设施的寿命。拟议研究的主要目标是开发新的深基础系统和产品，以最大限度地减少对环境的影响，并为建筑公司、业主和运营商节省资金。该研究计划将调查各种基础设施项目的创新基础在各种环境和人为荷载下的性能。它将涉及实地和实验测量的基础系统，这将证明可行性和上级性能的拟议创新的基础和产品。此外，实验测量和观察将用于校准/验证分析和数值模型，可用于设计和评估的性能特点的检查基础technology.The拟议的研究计划包括三个研究方向，调查基础系统的三种不同类型的基础设施。这些研究方向涉及施工，分析和设计问题，包括不同的荷载条件，施工技术和材料，以及不同基础系统的响应特性。1.高速公路基础设施的大容量深基础 * 高速公路桥梁的基础承受着巨大的重力、交通和环境荷载，因此必须采用具有大承载能力的基础系统。为此，将研究两种创新的桩基解决方案，以降低成本提供大容量。* 2. * 电信/输电塔和风力涡轮机通常建造在偏远和难以进入的地点，并对其基础施加复杂的载荷条件，其特点是高侧向力和弯矩。 将研究两种创新技术，以提高微型桩基础在此类应用中的抗侧力和抗弯力。* 3.振动设备的基础 * 石油管道、发电/石化工厂需要能够快速安装和加载并能承受动态载荷的基础。将研究两种高效基础系统的动态响应，这两种基础系统在远程和有限访问站点的快速安装和易于安装方面具有优势。**

Canada is currently facing enormous challenges dealing with the aging of infrastructures, with 60% of our public infrastructure is more than 40 years old. This critical infrastructure is supported by different types of foundations that are of considerable economic value. Hence, there is an urgent need for novel efficient foundation technologies to support new infrastructure and to upgrade and extend the life of existing infrastructure. The main objective of the proposed research is to develop novel deep foundation systems and products that will minimize environmental impact and will save money for construction companies, and owners and operators of this infrastructure. This research program will investigate the performance of innovative foundations for a variety of infrastructure projects subjected to a variety of environmental and man-made loadings. It will involve field and experimental measurements of investigated foundation systems, which will demonstrate the feasibility and superior performance of the proposed innovative foundations and products. In addition, the experimental measurements and observations will be used in calibrating/verifying analytical and numerical models that can be used for the design and evaluation of the performance characteristics of the examined foundation technologies.The proposed research program comprises three research directions that investigate foundation systems for three different types of infrastructure. These research directions deal with construction, analysis and design issues, including different loading conditions, construction techniques and materials, and response characteristics of different foundation systems.***1. Large capacity deep foundations for highway infrastructure***Foundations for highway bridges are subjected to heavy gravitational, traffic and environmental loads, which necessitates utilizing foundation systems that have large load carrying capacity. Two innovative pile foundation solutions that provide large capacity at a reduced cost will be examined for this purpose.***2. Foundations for telecommunication and power transmission towers***Telecommunication/transmission towers and wind turbines are often constructed in remote and difficult access sites, and impose complex loading conditions on their foundations characterized by high lateral forces and bending moments.  Two innovative technologies will be investigated to enhance the lateral and bending resistances of micropiles foundation for such applications.***3. Foundations for vibrating equipment***Oil pipelines, power generation/petrochemical plants require foundations that can be installed and loaded quickly and can withstand dynamic loading. The dynamic response of two efficient foundation systems that offer advantages with regard to fast installation and ease of installation in remote and limited access sites will be examined.**