NEESR-SG: Evaluation of Ground Rupture Effects on Critical Lifelines

NEESR-SG：地面破裂对关键生命线影响的评估

• 批准号: 0421142
• 负责人: Thomas O'Rourke
• 金额: --
• 依托单位: Cornell University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-10-01 至 2009-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0421142&HistoricalAwards=false
• 关键词: NEESR; SG; Evaluation; Ground; Rupture

The research addresses a fundamental problem affecting all underground lifelines, namely the effects of large differential ground deformation on buried pipeline and conduit performance. The research will produce a seminal outcome through state-of-the-art modeling and quantification of earthquake-induced ground movement effects on lifelines. It also will improve the design and construction of lifelines affected by landslides, mining, extraction of subsurface fluids, and underground construction. The research deliverables include, as a minimum: 1) systematic assessment of lifeline performance under permanent ground deformation, 2) quantification of serviceability and ultimate limit states for critical lifelines, 3) design guidelines, 4) experimental databases for benchmarking future numerical models and guiding the evolution of numerical simulations for soil-structure interaction, and 5) validation and guidance for advanced materials as well as sensor and robotics deployment in underground conduits. The research will be performed through physical modeling using the Cornell Large Displacement Soil-Structure Interaction Facility for Lifeline Systems and the Rensselaer 150 g-ton Geotechnical Centrifuge in combination with advanced computational simulation. The 4-year program is organized according to a matrix management approach in which lifeline response to a comprehensive suite of ground rupture patterns is systematically investigated and checked through large-scale experiments, centrifuge tests, and numerical simulation. Technical Merits: The research team at Cornell and Rensselaer has extensive experience in the design, siting, and construction of underground lifelines, as well as laboratory and field testing of pipelines/conduits. They have worked extensively together and have earned a strong national and international reputation for their contributions to lifeline, geotechnical, and structural engineering. Moreover, they will follow a meticulous and systematic plan for the research that is thoroughly integrated and managed. They will use world-class NEES facilities that were constructed specifically for this type of investigation. Research investments through the proposed project will be leveraged into improved practices for water, electric power, gas and liquid fuel, telecommunication, transportation, and wastewater conveyance lifelines representing hundreds of thousands of km of US facilities critical for the delivery of community resources and services. Broader Impacts: The proposed project addresses safety and reliability of critical infrastructure while also creating an innovative outreach program with the Sciencenter of Ithaca, NY. The project team will develop a 300-SF museum exhibition on earthquake engineering and will explain how engineers at NEES sites study earthquake effects using networked experimental facilities. An interactive shake table that can be controlled by anyone on the Internet will allow museum visitors, school classes, and home users to participate in earthquake engineering experiments, reaching an estimated 600,000 individuals over four years. The project will model a process for how other NEES sites can link with 400 science centers throughout the U.S. The project involves substantial collaboration with industry, including ADS, Inc., Corning, Inc., Exxon Mobil, Los Angeles Department of Water and Power, Phillips Driscopipe, Inc., Tokyo Gas Co., Ltd., and ULC Robotics, Inc. Hence, the research results will be guided by industry for maximum impact in practice, continuing education of the U.S. work force, and nationwide dissemination in infrastructure projects. The project will receive assistance from Cornell in supporting women and minority summer research experiences for undergraduates, and will benefit from a Sciencenter program that will support teenage museum guides from underserved communities. Additional undergraduate support will be sought through the NSF REU program, graduate students will be supported, and research results will be integrated into courses taught by the PIs and their colleagues at Cornell, Rensselaer, and other institutions.

该研究解决了影响所有地下生命线的一个基本问题，即大差分地面变形对埋地管线性能的影响。这项研究将通过最先进的模拟和量化地震引起的地面运动对生命线的影响，产生开创性的结果。它还将改进受滑坡、采矿、提取地下流体和地下建筑影响的生命线的设计和建造。研究成果至少包括：1)系统评估永久地面变形下的生命线性能，2)量化关键生命线的可用性和极限状态，3)设计指南，4)为未来数值模型提供基准的实验数据库，指导土-结构相互作用数值模拟的发展，5)验证和指导先进材料以及传感器和机器人在地下管道中的部署。该研究将通过使用康奈尔大位移生命线系统土-结构相互作用设施和Rensselaer 150 g-ton岩土离心机进行物理建模，并结合先进的计算模拟。这个为期4年的项目是根据矩阵管理方法组织的，通过大规模实验、离心机测试和数值模拟，系统地调查和检查了对一系列地面破裂模式的生命线响应。技术优势：康奈尔大学和伦斯勒大学的研究团队在地下生命线的设计、选址和施工以及管道/管道的实验室和现场测试方面拥有丰富的经验。他们广泛合作，在生命线、岩土工程和结构工程方面的贡献赢得了强大的国内和国际声誉。此外，他们将遵循细致系统的研究计划，并进行彻底的整合和管理。他们将使用专门为这类调查建造的世界级NEES设施。拟议项目的研究投资将用于改善水、电力、天然气和液体燃料、电信、交通和废水输送生命线的实践，这些生命线代表了美国数十万公里的设施，这些设施对社区资源和服务的提供至关重要。更广泛的影响：拟议的项目涉及关键基础设施的安全性和可靠性，同时还与纽约州伊萨卡的科学中心建立了一个创新的外展计划。项目团队将开发一个300平方英尺的地震工程博物馆展览，并将解释NEES站点的工程师如何使用网络实验设施研究地震影响。一个可以在互联网上由任何人控制的互动式振动台将允许博物馆参观者、学校班级和家庭用户参与地震工程实验，预计四年将有60万人参与。该项目将为其他NEES站点如何与美国400个科学中心建立联系提供一个流程模型。该项目涉及与行业的大量合作，包括ADS， Inc.，康宁公司，埃克森美孚公司，洛杉矶水电局，Phillips Driscopipe, Inc.，东京燃气公司和ULC Robotics， Inc.。因此，研究成果将以行业为导向，在实践中产生最大的影响，对美国劳动力进行继续教育，并在全国范围内推广基础设施项目。该项目将得到康奈尔大学的资助，以支持本科生的女性和少数民族夏季研究经验，并将受益于科学中心的一个项目，该项目将支持来自服务不足社区的青少年博物馆导游。其他本科生将通过NSF REU项目寻求支持，研究生将得到支持，研究成果将被整合到康奈尔大学、伦斯勒大学和其他机构的pi及其同事所教授的课程中。