Investigation of Seismic Wave Attenuation During Frictional Sliding

摩擦滑动过程中地震波衰减的研究

• 批准号: 9315767
• 负责人: Laura Pyrak-Nolte
• 金额: $ 4.5万
• 依托单位: University of Notre Dame
• 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: 1994-05-01 至 1996-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9315767&HistoricalAwards=false
• 关键词: Investigation; Seismic; Wave; Attenuation; During

9315767 Pyrak-Nolte The PI will investigate on the laboratory time scale active seismic monitoring of fractures or interfaces undergoing frictional sliding and stick-slip behavior. Active seismic monitoring involves propagating compressional/shear waves across interfaces under shear loading. Results from this work on the laboratory scale should illuminate one of the key questions of earthquake prediction and joint stability. In order to achieve this objective, two critical issues will be addressed: (1) the observation of changes in seismic amplitudes or velocities as a fracture undergoes frictional sliding and stick-slip behavior, and (2) relating seismic precursors to the surface conditions of the fracture. ****

9315767 pyrak-nolte PI将在实验室时间尺度上调查裂缝或接口的主动地震监测。 主动的地震监测涉及在剪切载荷下跨接口上传播压缩/剪切波。 这项在实验室规模上的工作的结果应阐明地震预测和关节稳定性的关键问题之一。 为了实现这一目标，将解决两个关键问题：（1）观察地震振幅或速度的变化作为断裂的变化会经历摩擦滑动和滑滑行为，以及（2）将地震前体与骨折的表面条件相关。 ****