Natural Hazards Engineering Research Infrastructure: Experimental Facility with Large Wave Flume and Directional Wave Basin 2021-2025

自然灾害工程研究基础设施(NHERI)由国家科学基金会(NSF)支持，作为一个分布式、多用户的国家设施，向自然灾害工程研究社区提供访问研究基础设施的机会，这些基础设施包括地震和风力工程实验设施、网络基础设施(CI)、计算建模和模拟工具、高性能计算资源和研究数据，以及教育和社区推广活动。NHERI最初由计划征集NSF 14-605和NSF 15-598提供资金，自2015年以来一直通过网络协调办公室、CI、计算建模和仿真中心以及实验设施(包括灾后快速反应研究设施)获得单独但协调的五年研究基础设施奖。有关NHERI资源的信息可在NHERI Web门户网站(https://www.DesignSafe-ci.org).)上找到授予NHERI的奖项有助于NSF在国家减少地震灾害计划(NEHRP)和国家减少风暴影响计划(NWIRP)中发挥的作用。NHERI实验设施将为NSF支持的研究和教育奖项提供对其实验资源、用户服务和数据管理基础设施的访问。该奖项将俄勒冈州立大学的NHERI实验设施续期至2021年1月1日至2025年9月30日。通过这一奖项，俄勒冈州立大学将继续维护、运营和加强大型波浪水槽和定向波浪盆地，以提供实验设备、仪器和技术支持，以使研究能够减轻自然灾害(如海岸浪涌和海浪和海啸)对国家民用基础设施和社区的影响。与NHERI科学计划(https://doi.org/10.17603/ds2-4s85-mc54)，)中概述的自然灾害工程领域的重大研究挑战一致，该设施将实现新的研究发现，有助于保护人类生命、减少损害、最大限度地减少经济损失，并使社区能够在发生极端沿海灾害事件后更快地恢复。这些实验能力将使研究人员能够开发适应工程的新技术，以减轻沿海灾害的影响。使用这一设施产生的实验数据将存档在NHERI门户网站的数据仓库中。该设施将举办年度用户工作坊，为本科生提供研究体验，并通过教师研究体验开发K-12教学内容。大浪槽和定向波池能够产生用于海啸研究的长周期波和用于飓风波研究的短峰波，并可用于研究水力结构-泥沙现象，例如人工和自然环境中的海啸和飓风淹没动力学；海啸和飓风波浪力对近岸民用基础设施的影响；以及海啸和飓风浪与沉积物的相互作用，导致侵蚀和局部冲刷。波浪水槽是海岸的二维表示(直接面向大海)，消除了沿岸流和波向的复杂性，并允许在大约1：50到1：1(原型)的尺度上研究试件的横截面，以模拟建筑物部件、海滩和沙丘的天然沉积物以及海岸活植被的波浪-结构相互作用。波浪盆地通过横向延伸将系统的复杂性增加到三维，使得当波浪方向很重要时能够研究沿海社区和复杂的港口。波浪盆地通常需要将比例减小到五倍(1：250到1：5)。除了这两个资源，该设施还将提供标准和最先进的仪器，以评估波浪条件、速度和响应变量，如应力、应变、载荷和泥沙传输(冲刷和侵蚀)。该奖项反映了NSF的法定使命，并通过使用基金会的智力优势和更广泛的影响审查标准进行评估，被认为值得支持。

The Natural Hazards Engineering Research Infrastructure (NHERI) is supported by the National Science Foundation (NSF) as a distributed, multi-user national facility to provide the natural hazards engineering research community with access to research infrastructure that includes earthquake and wind engineering experimental facilities, cyberinfrastructure (CI), computational modeling and simulation tools, high performance computing resources, and research data, as well as education and community outreach activities. Originally funded under program solicitations NSF 14-605 and NSF 15-598, NHERI has operated since 2015 through separate, but coordinated, five-year research infrastructure awards for a Network Coordination Office, CI, Computational Modeling and Simulation Center, and Experimental Facilities, including a post-disaster, rapid response research facility. Information about NHERI resources is available at the NHERI web portal (https://www.DesignSafe-ci.org). Awards made for NHERI contribute to NSF's role in the National Earthquake Hazards Reduction Program (NEHRP) and the National Windstorm Impact Reduction Program (NWIRP). NHERI Experimental Facilities will provide access to their experimental resources, user services, and data management infrastructure for NSF-supported research and education awards. This award will renew the NHERI Experimental Facility at Oregon State University from January 1, 2021, to September 30, 2025. Through this award, Oregon State University will continue to maintain, operate, and enhance the Large Wave Flume and Directional Wave Basin to provide access to experimental equipment, instrumentation, and technical support to enable research to mitigate the impact of natural hazards, such as coastal surge and waves and tsunamis, on the nation’s civil infrastructure and communities. Consistent with the grand research challenges in natural hazards engineering, as outlined in the NHERI Science Plan (https://doi.org/10.17603/ds2-4s85-mc54), the facility will enable new research discoveries that can help protect human life, reduce damage, minimize economic losses, and allow communities to recover more quickly after extreme coastal hazard events. The experimental capabilities will allow researchers to develop new technologies for adaptive engineering to mitigate the effects of coastal hazards. Experimental data generated from the use of this facility will be archived in the Data Depot on the NHERI web portal. The facility will conduct annual user workshops, host Research Experiences for Undergraduate students, and enable the development of K-12 instructional content developed via Research Experiences for Teachers.The Large Wave Flume and Directional Wave Basin are capable of generating long-period waves for tsunami research and short-crested waves for hurricane wave research and can be used for the study of hydraulic-structure-sediment phenomena, such as tsunami and hurricane inundation dynamics in constructed and natural environments; tsunami and hurricane wave forces on near-coast civil infrastructure; and tsunami and hurricane surge interaction with sediments causing erosion and localized scour. The wave flume is a two-dimensional representation of the coast (looking directly out to sea), eliminating the complexity of longshore currents and wave direction, and allowing a cross-section of test specimens to be studied at scales from approximately 1:50 up to 1:1 (prototype) scale to model wave-structure interaction of building subassemblies, native sediments for beaches and dunes, and live coastal vegetation. The wave basin increases the system complexity to three dimensions by extending laterally, enabling the study of coastal communities and complex harbors when wave direction is important. The wave basin generally requires a decrease in scale by a factor of five (1:250 to 1:5). In addition to these two resources, the facility will provide standard and state-of-the-art instrumentation to assess wave conditions, velocity, and response variables such as stress, strain, load, and sediment transport (scour and erosion).This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.