United States-New Zealand-Japan International Workshop on Liquefaction-Induced Ground Movements Effects; Berkeley, California; November 2-3, 2016

美国-新西兰-日本液化引起的地面运动影响国际研讨会；

• 批准号: 1640922
• 负责人: Jonathan Bray
• 金额: $ 9.99万
• 依托单位: University of California-Berkeley
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2016
• 资助国家: 美国
• 起止时间: 2016-07-15 至 2017-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1640922&HistoricalAwards=false
• 关键词: United; States; New; Zealand; Japan

There is much to learn from the recent New Zealand and Japan earthquakes. These earthquakes produced differing levels of liquefaction-induced ground movements that damaged buildings, bridges, and buried utilities. Along with the often spectacular observations of infrastructure damage, there were also many cases where well-built facilities located in areas of liquefaction-induced ground failure were not damaged. Researchers are working on characterizing and learning from these observations of both poor and good performance. The "Liquefaction-Induced Ground Movements Effects" workshop provides an opportunity to take advantage of recent research investments following these events to develop a path forward for an integrated understanding of how infrastructure performs with various levels of liquefaction. Approximately 50 leading researchers in the field, two-thirds from the US and one-third from New Zealand and Japan, will convene in Berkeley. The objective of this workshop is to identify which empirical and analytical methods hold the greatest potential for advancing insight on the effects of liquefaction-induced ground movements on structures and therefore should be considered high priority for further research. The workshop will also advance the development of younger researchers through identifying research approaches that appear to be promising, as well as to promote future collaborations among participants. Simplified liquefaction-induced ground movement evaluation procedures cannot explain the different levels of liquefaction-induced infrastructure performance during recent earthquakes in New Zealand and Japan. These earthquakes with their excellent ground motion recordings, comprehensive subsurface investigations, and well-documented performances of structures, provide an exceptional opportunity to advance our understanding of the effects of liquefaction. There are not well-validated procedures available to evaluate the effects of liquefaction-induced ground movements on infrastructure. With the limitations inherent in investigating liquefaction effects solely in the laboratory or through numerical simulations, there is a pressing need to use well-documented case histories to gain insights and to develop analytical procedures for evaluating the effects of liquefaction. The quantity and quality of the ground characterization and ground failure data in the recent earthquakes are unparalleled. These events provide the opportunity for an integrated study of building and lifeline performance at a degree of detail and level of complexity that has not been realized previously. The project will support international collaborations between New Zealand, Japan, and US earthquake researchers and help young US researchers develop promising international research contacts. The interactions and information exchange among the experts will advance liquefaction engineering as well as new collaborations.

从最近的新西兰和日本地震中可以学习很多东西。 这些地震产生了不同水平的液化引起的地面运动，损害了建筑物，桥梁和埋藏的公用事业。除了对基础设施损害的经常观察到壮观的观察结果，在许多情况下，位于液化引起的地面故障区域的设施精良。 研究人员正在努力从这些观察结果中描述和学习较差和良好的表现。 “液化引起的地面运动效果”研讨会提供了一个机会，可以利用这些事件后的最新研究投资，以开发前进的途径，以综合地了解基础设施如何用各种液化的液化。 该领域的大约50名主要研究人员将在伯克利召集该领域的三分之二，来自新西兰和日本的三分之一将召集。 该研讨会的目的是确定哪种经验和分析方法具有促进洞察液化引起的地面运动对结构影响的最大潜力，因此应被认为是高优先级以进行进一步研究。 研讨会还将通过确定似乎有希望的研究方法以及促进参与者之间的未来合作来推动年轻研究人员的发展。简化的液化引起的地面运动评估程序无法解释新西兰和日本最近地震期间液化诱导的基础设施性能的不同水平。 这些地震具有出色的地面运动记录，全面的地下调查以及有据可查的结构表演，为促进了我们对液化作用的理解提供了极大的机会。 没有可用的验证程序来评估液化引起的地面运动对基础设施的影响。 由于仅在实验室或数值模拟中研究液化效果固有的局限性，因此有必要使用有据可查的病例历史来获得见解并开发分析程序来评估液化的影响。 最近地震中地面表征和地面故障数据的数量和质量是无与伦比的。 这些事件为建筑和生命线绩效的综合研究提供了机会，并以一定程度的详细程度和复杂性水平尚未实现。 该项目将支持新西兰，日本和美国地震研究人员之间的国际合作，并帮助年轻的美国研究人员建立有希望的国际研究联系。 专家之间的互动和信息交流将推进液化工程以及新的合作。