CAREER: Experimental Investigation of Failure Modes and Mechanics of Earthquakes
职业:地震破坏模式和力学的实验研究
基本信息
- 批准号:1056317
- 负责人:
- 金额:$ 54.55万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Continuing Grant
- 财政年份:2011
- 资助国家:美国
- 起止时间:2011-03-01 至 2018-02-28
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Small amplitude slow slip events were discovered at both the updip and downdip limits of the subduction zones where tsunami-generating mega earthquakes occur. Understanding the physics of these events may provide constraints on stress transfer and loading that potentially lead to great earthquakes. The proposed study will focus on investigating the possible mechanisms for generating very low frequency earthquakes (VLFEs) detected in the Nankai accretionary prism. The mechanisms that trigger these un-earthquake like seismic signals are controversial. The project involves an experimental investigation on the failure mechanisms related to pore pressure excess, which is widely cited for triggering slip that induces VLFEs. Using an integrated approach consists of deformation and frictional experiments, microstructural analyses, and numerical modeling on slip and failure associated with the observed seismic events, the project's goal is to gain better understanding of the fundamental mechanics of shallow VLFEs. The multidisciplinary and hands-on nature of experimental studies is a great platform to motivate open-minded young students, especially from underrepresented groups, to pursue careers in science and engineering. The proposed work includes building a virtual deformation laboratory where students everywhere can learn about rock deformation. The experimental results will provide new insights into seismicity at subduction zones.
在引起海啸的特大地震发生的俯冲带的上倾和下倾边界都发现了小振幅慢滑事件。了解这些事件的物理性质可能会限制可能导致大地震的应力传递和载荷。该研究将重点研究在南开吸积棱镜中探测到的甚低频地震(VLFEs)的可能产生机制。触发这些非地震信号的机制是有争议的。该项目涉及与孔隙压力过剩相关的破坏机制的实验研究,孔隙压力过剩被广泛引用为触发滑移诱发vlfe的原因。该项目的目标是利用变形和摩擦实验、微观结构分析以及与观测到的地震事件相关的滑动和破坏的数值模拟等综合方法,更好地了解浅层vlfe的基本力学。实验研究的多学科和实践性质是一个很好的平台,可以激励思想开放的年轻学生,特别是来自代表性不足的群体,追求科学和工程方面的职业。提议的工作包括建立一个虚拟变形实验室,让各地的学生都可以学习岩石变形。实验结果将为俯冲带的地震活动性提供新的见解。
项目成果
期刊论文数量(7)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Microscale characterization of rupture nucleation unravels precursors to faulting in rocks
- DOI:10.1016/j.epsl.2017.08.002
- 发表时间:2017-10
- 期刊:
- 影响因子:5.3
- 作者:François Renard;B. Cordonnier;M. Kobchenko;Neelima Kandula;J. Weiss;Wenlu Zhu
- 通讯作者:François Renard;B. Cordonnier;M. Kobchenko;Neelima Kandula;J. Weiss;Wenlu Zhu
Effect of pore pressure buildup on slowness of rupture propagation: PORE PRESSURE BUILDUP ON RUPTURE
孔隙压力累积对破裂传播速度的影响:孔隙压力累积对破裂的影响
- DOI:10.1002/2015jb012047
- 发表时间:2015
- 期刊:
- 影响因子:0
- 作者:Ougier-Simonin, A.;Zhu, W.
- 通讯作者:Zhu, W.
The recent history of the Galapagos triple junction preserved on the Pacific plate
太平洋板块上保存的加拉帕戈斯三重交界点的近代历史
- DOI:10.1016/j.epsl.2013.04.018
- 发表时间:2013
- 期刊:
- 影响因子:5.3
- 作者:Smith, Deborah K.;Schouten, Hans;Montési, Laurent;Zhu, Wenlu
- 通讯作者:Zhu, Wenlu
Progressive microscopic damage associated with fault growth: MICROSCOPIC DAMAGE AND FAULT GROWTH
与断层生长相关的渐进性微观损伤:微观损伤和断层生长
- DOI:10.1029/2012gl052487
- 发表时间:2012
- 期刊:
- 影响因子:5.2
- 作者:Tamarkin, T.;Ougier-Simonin, A.;Zhu, Wenlu
- 通讯作者:Zhu, Wenlu
Distributed deformation ahead of the Cocos-Nazca Rift at the Galapagos triple junction: DEFORMATION AT THE GALAPAGOS TJ
加拉帕戈斯三重交界处科科斯-纳斯卡裂谷前方的分布式变形:加拉帕戈斯 TJ 处的变形
- DOI:10.1029/2011gc003689
- 发表时间:2011
- 期刊:
- 影响因子:0
- 作者:Smith, Deborah K.;Schouten, Hans;Zhu, Wen-lu;Montési, Laurent G.;Cann, Johnson R.
- 通讯作者:Cann, Johnson R.
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Wen-Lu Zhu其他文献
Wen-Lu Zhu的其他文献
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{{ truncateString('Wen-Lu Zhu', 18)}}的其他基金
Experimental Investigation of Mechanisms for High Pore Fluid Pressure Associated Slow Faulting
高孔隙流体压力伴慢断层机理的实验研究
- 批准号:
2218314 - 财政年份:2022
- 资助金额:
$ 54.55万 - 项目类别:
Standard Grant
Research Coordination Network: In situ Studies of Rock Deformation (ISRD)
研究协调网络:岩石变形原位研究 (ISRD)
- 批准号:
1926627 - 财政年份:2019
- 资助金额:
$ 54.55万 - 项目类别:
Continuing Grant
Observations of Fault Growth Under Elevated Fluid Pressure Using Dynamic Microtomography
使用动态显微断层扫描观察高流体压力下的断层生长
- 批准号:
1761912 - 财政年份:2018
- 资助金额:
$ 54.55万 - 项目类别:
Continuing Grant
Physical Properties of Partially Molten Rocks from Microtomography Experiments and Digital Rock Physics
显微断层摄影实验和数字岩石物理中部分熔融岩石的物理性质
- 批准号:
1551300 - 财政年份:2016
- 资助金额:
$ 54.55万 - 项目类别:
Standard Grant
Support for 2014 Gordon Research Conference and Gordon Research Seminar on Experimental Rock Deformation
支持2014戈登研究会议和戈登实验岩石变形研究研讨会
- 批准号:
1437343 - 财政年份:2014
- 资助金额:
$ 54.55万 - 项目类别:
Standard Grant
Collaborative Research: Experimental Investigation of the Effects of Lithology and Melt Composition on Permeability and 3-D Melt Distribution in Partially Molten Rocks
合作研究:岩性和熔体成分对部分熔融岩石渗透率和 3-D 熔体分布影响的实验研究
- 批准号:
1250338 - 财政年份:2013
- 资助金额:
$ 54.55万 - 项目类别:
Standard Grant
Acquisition of a Triaxial Deformation Apparatus
获得三轴变形装置
- 批准号:
0824908 - 财政年份:2008
- 资助金额:
$ 54.55万 - 项目类别:
Standard Grant
Experimental Quantification of 3D Melt Distribution in Partially Molten Rocks
部分熔融岩石中 3D 熔体分布的实验量化
- 批准号:
0753505 - 财政年份:2007
- 资助金额:
$ 54.55万 - 项目类别:
Continuing Grant
Effects of Stress on the Anisotropic Development of Permeability During Mechanical Compaction of Porous Limestones
多孔灰岩机械压实过程中应力对渗透率各向异性发展的影响
- 批准号:
0741339 - 财政年份:2007
- 资助金额:
$ 54.55万 - 项目类别:
Continuing Grant
Experimental Quantification of 3D Melt Distribution in Partially Molten Rocks
部分熔融岩石中 3D 熔体分布的实验量化
- 批准号:
0537961 - 财政年份:2006
- 资助金额:
$ 54.55万 - 项目类别:
Continuing Grant
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