Understanding Processes of Rock Friction Relevant to Earthquake Mechanics

了解与地震力学相关的岩石摩擦过程

• 批准号: 9725562
• 负责人: Terry Tullis
• 金额: $ 12.24万
• 依托单位: Brown University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-04-01 至 2000-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9725562&HistoricalAwards=false
• 关键词: Understanding; Processes; Rock; Friction; Relevant

9725562 Tullis The P.I.s propose an experimental program focussed on understanding fundamental processes that may be responsible for causing earthquakes to occur. Crustal earthquakes occur due to rapid sliding on faults, and they occur suddenly because it is harder for the sliding to begin than for it to continue once it has started. The experiments proposed will aim at trying to understand why sliding is easier when it occurs faster, and why faults grow stronger as they sit quietly between earthquakes. Several fundamental explanations have been offered, and these laboratory experiments on friction of rock will be testing some of the predominant hypotheses. Ultimately it is hoped that improving understanding of fundamental earthquake processes might show ways of predicting earthquakes and understanding the origin of the damaging strong ground motions. ***

[9725562]图利斯私家侦探提出了一个实验项目，重点是了解可能导致地震发生的基本过程。地壳地震是由于断层上的快速滑动而发生的，它们突然发生是因为滑动开始比开始后继续困难。提出的实验旨在试图理解为什么滑动发生得更快时更容易，以及为什么断层在地震之间安静地生长时变得更强。已经提出了几种基本的解释，这些关于岩石摩擦的实验室实验将检验一些主要的假设。最终，人们希望提高对地震基本过程的理解，从而找到预测地震和理解破坏性强地面运动起源的方法。＊＊＊