NEESR-SG: Damage Detection and Health Monitoring of Buried Pipelines after Earthquake-Induced Ground Movement

NEESR-SG：地震引起的地面运动后埋地管道的损坏检测和健康监测

• 批准号: 0724022
• 负责人: Radoslaw Michalowski
• 金额: $ 160万
• 依托单位: Regents of the University of Michigan - Ann Arbor
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-09-01 至 2013-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0724022&HistoricalAwards=false
• 关键词: NEESR; SG; Damage; Detection; Health

This proposed research is an outcome of the National Science Foundation 07-506 program solicitation "George E. Brown, Jr. Network for Earthquake Engineering Simulation (NEES) Research" competition. This project is led by the University of Michigan and includes subawards to Merrimack College and Purdue University. This project will utilize the NEES lifeline experimental facilities at Cornell University. The assessment of damage to lifelines after natural disasters, such as earthquakes, is a crucial component of emergency response and rescue efforts. Of particular importance is the water supply system, as water is an important survival resource. Even minor damage to water pipelines can result in contamination and epidemic outbreaks. Water is transmitted in concrete and metal pipes, which are vulnerable to damage caused by ground motions; it is proposed that damage detection methods be devised for both kinds of pipes. Quick assessment of the integrity of these pipelines is necessary for first planning the recovery mission and subsequent infrastructure reconstruction. The long-term monitoring of the structural health of pipelines is also an important component of infrastructure maintenance. A challenge in damage assessment to lifelines is in the fact that most pipelines are buried in soil. This proposal will develop methods for the detection of damage to concrete and metal pipelines caused by permanent ground displacement. It is envisioned that future lifelines will be smart structures built of materials with self-sensing capabilities, and wireless techniques will be used to transmit the information-carrying signal to the ground surface. The research proposed has three components: soil-structure interaction of pipelines subjected to ground movement, material research and design (particularly self-sensing concrete), and information technology focused on data gathering, processing and transfer. The broad impacts of this research on society will come through increased capabilities of damage assessment to lifelines after natural disasters, and through better long-term health monitoring methods. A unique aspect of this project is the involvement of the project team in an outreach program through the Hands-On Museum in Ann Arbor, Michigan and the Sciencenter in Ithaca, New York, where a young audience can be directly reached and educated on the issues of engineering and the nation's infrastructure. Data from this project will be made available through the NEES data repository (http://www.nees.org).

这项拟议中的研究是国家科学基金会07-506计划征求“乔治E。小布朗地震工程模拟研究网络（NEES）竞赛。该项目由密歇根大学领导，包括梅里马克学院和普渡大学的子奖项。该项目将利用康奈尔大学的NEES生命线实验设施。评估地震等自然灾害后生命线的损害是应急和救援工作的一个关键组成部分。供水系统尤其重要，因为水是重要的生存资源。即使是对水管的轻微损坏也可能导致污染和流行病的爆发。混凝土管道和金属管道都是输水管道，在地震作用下容易受到损伤，因此提出了两种管道的损伤检测方法。必须迅速评估这些管道的完整性，以便首先规划恢复使命和随后的基础设施重建。管道结构健康的长期监测也是基础设施维护的一个重要组成部分。生命线损害评估的一个挑战是，大多数管道埋在土壤中。该提案将制定方法，用于检测永久性地面位移对混凝土和金属管道造成的损坏。据设想，未来的生命线将是由具有自感知能力的材料建造的智能结构，无线技术将用于将携带信息的信号传输到地面。建议的研究有三个组成部分：土壤结构相互作用的管道受到地面运动，材料的研究和设计（特别是自感知混凝土），以及信息技术集中在数据收集，处理和传输。这项研究对社会的广泛影响将通过提高自然灾害后对生命线损害评估的能力，以及通过更好的长期健康监测方法来实现。该项目的一个独特之处是，项目小组通过密歇根州安阿伯的动手博物馆和纽约伊萨卡的科学中心参与了一项外联方案，在那里可以直接接触年轻观众，并就工程和国家基础设施问题进行教育。该项目的数据将通过NEES数据储存库（http：//www.example.com）提供。www.nees.org