Continuation of Parkfield Pipeline Experiment

继续帕克菲尔德管道实验

• 批准号: 9313848
• 负责人: Jeremy Isenberg
• 金额: $ 4.22万
• 依托单位: Weidlinger Associates, Incorporated
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-02-01 至 1997-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9313848&HistoricalAwards=false
• 关键词: Continuation; Parkfield; Pipeline; Experiment

9313848 Isenberg This action is for continued support of an experiment in which underground instrumented pipeline segments were constructed and installed in a zone of probable earthquake rupture in Parkfield, California. The overall objective is to investigate the damage experienced by buried pipelines due to strong earthquake shaking, and to use data measured during strong ground shaking to evaluate analytical models for predicting this damage. Since 1857, seven earthquakes have occurred on the San Andreas Fault in the vicinity of Parkfield, at an average interval of 22 years. The last earthquake was in 1966, and the United States Geological Survey (USGS) predicts, with a 95% confidence level, a recurrence before 1993. The choice of the site at Parkfield was made with assistance from USGS geologists. This experiment is supported in collaboration with the National Center for Earthquake Engineering Research in Buffalo, New York, and the Urban Earthquake Hazard Research Institute of the University of Tokyo in Japan. The first objective of this project is to investigate the effects of lateral offset on pipelines, a major damage mode, and to provide data on the relation between ground displacements and pipeline response in order to evaluate analytical models of this damage mode. The second objective is to investigate the damage induced by travelling seismic waves, another important damage mode, and to use measured data to evaluate analytical models. Whereas the first experiment requires that the surface rupture cross the installed pipelines, the second experiment is dependent only on the installation being subjected to strong ground shaking. ***

9313848 Isenberg 此行动是为了继续支持一项实验，在该实验中，在加利福尼亚州帕克菲尔德可能发生地震破裂的区域建造和安装了地下仪表管道段。 总体目标是调查强烈地震震动导致埋地管道遭受的损坏，并使用强烈地面震动期间测量的数据来评估预测这种损坏的分析模型。 自1857年以来，帕克菲尔德附近的圣安德烈亚斯断层上已发生7次地震，平均间隔22年。 上一次地震发生在 1966 年，美国地质调查局 (USGS) 以 95% 的置信度预测 1993 年之前会再次发生地震。帕克菲尔德选址是在 USGS 地质学家的协助下做出的。 该实验得到纽约布法罗国家地震工程研究中心和日本东京大学城市地震灾害研究所的合作支持。 该项目的首要目标是研究横向偏移对管道（一种主要损坏模式）的影响，并提供地面位移与管道响应之间关系的数据，以便评估这种损坏模式的分析模型。第二个目标是研究行波地震引起的损坏（另一种重要的损坏模式），并使用测量数据来评估分析模型。 第一个实验要求表面破裂穿过已安装的管道，而第二个实验仅取决于安装是否受到强烈的地面震动。 ***