Development of an experimental system for analyzing the rheology of dense granular materials and fault gouge under seismic conditions

地震条件下致密颗粒材料和断层泥流变分析实验系统的开发

• 批准号: 0732715
• 负责人: Ze'ev Reches
• 金额: $ 24.38万
• 依托单位: University of Oklahoma Norman Campus
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2008
• 资助国家: 美国
• 起止时间: 2008-01-15 至 2010-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0732715&HistoricalAwards=false
• 关键词: Development; experimental; system; analyzing; rheology

0732715RechesThis grant supports a two year collaborative effort to develop a rotary shear device for studying the rheology of dense granular materials and fault gouge under earthquake conditions. In order to simultaneously subject materials to large slip, fluid confinement, elevated pore pressure, high slip velocity, and high normal stress, the device will combine a commercially available loading and monitoring device together with a PI developed sealed annular cell that will contain the granular material and allow loading under in situ seismic conditions and a servo-controlled hydraulic system that is capable of continuous, monotonous change of slip velocity. Components of the instrument will be assembled at the University of Oklahoma though the final instrument will be housed and maintained at the USGS in Menlo Park, CA. If successful, the device is anticipated to produce novel experimental data that may lead to advances in our understanding of earthquake rupture mechanics.***

0732715Rechesthis Grant支持为期两年的合作努力，以开发一种旋转剪切装置，用于研究地震条件下的致密颗粒状材料和断层壁的流变。 为了同时使材料受到较大的滑移，流体限制，孔压的升高，高滑动速度和高正常压力，该设备将结合商业上可用的装载和监视装置与PI开发的密封环形细胞，这些密封环形细胞包含颗粒状材料，并允许在地震条件下进行伺服式式液压系统，从而可以连续地进行击中，从而可以连续地进行远射式远射。 该乐器的组件将在俄克拉荷马大学组装，尽管最终乐器将在加利福尼亚州门洛公园的USGS安置和维护。 如果成功，该设备将产生新的实验数据，这可能会导致我们对地震破裂力学的理解的进步。***