Phase I IUCRC at California Institute of Technology-Center for Geomechanics and Mitigation of Geohazards[GMG]

加州理工学院地质力学和地质灾害缓解中心第一阶段 IUCRC[GMG]

• 批准号: 1822214
• 负责人: Jean-Philippe Avouac
• 金额: $ 75万
• 依托单位: California Institute of Technology
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2018
• 资助国家: 美国
• 起止时间: 2018-09-01 至 2024-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1822214&HistoricalAwards=false
• 关键词: Phase; IUCRC; California; Institute; Technology

A number of energy-related industrial activities as well as a range of natural disasters - such as earthquakes and landslides - involve the deformation and eventual failure of geomaterials in presence of fluids. The governing mechanisms remain poorly understood. The Industry-University Collaborative Research Center for Geomechanics and Mitigation of Geohazards (GMG) will enable a synergetic research effort to improve their understanding. GMG will thereby contribute to more efficient, reliable and safe methods for energy production, CO2 and gas storage and improved methods for the assessment and mitigation of earthquake and landslide hazard. The center members include oil and gas companies, engineering companies in the areas of geomechanics and geohazard mitigation, and utilities operators concerned with the exposure of infrastructures to earthquake and landslide hazard. Participation of postdoctoral fellows, graduate and undergraduate students in the research projects based on fundamental science yet relevant to the industrial and societal needs to be pursued by the center will educate a new generation of academic and industrial leaders in science and engineering.Deformation in the subsurface is often associated to, and eventually coupled with fluid flow. Investigating these mechanisms is important to improve our ability to model the effects of fluid injection or extraction in the sub-surface, fault dynamics in general, landslides and the ground response to earthquake shaking. The Industry-University Collaborative Research Center for Geomechanics and Mitigation of Geohazards (GMG) will therefore conduct cross-disciplinary research to advance the fundamental understanding of how geomaterials deform and fail in presence of fluids. GMG will achieve its goal by combining experimental and modeling studies, and leveraging cutting-edge research in geomechanics and computational mechanics, remote sensing, and geophysics. The research will benefit industrial activities involving the management of fluids in the sub-surface related for example, to energy production, gas storage and CO2 storage, and will advance methods for the assessment and mitigation of geohazards, whether of natural origin or related to industrial activities.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

许多与能源有关的工业活动以及一系列自然灾害，如地震和山体滑坡，都涉及到存在流体的地质材料的变形和最终破坏。治理机制仍然知之甚少。地质力学和减轻地质灾害（GMG）产学研合作研究中心将使协同研究工作能够提高他们的认识。因此，GMG将有助于更有效、可靠和安全的能源生产、二氧化碳和气体储存方法，以及改进评估和减轻地震和滑坡灾害的方法。该中心的成员包括石油和天然气公司、地质力学和减轻地质灾害领域的工程公司，以及与基础设施暴露于地震和滑坡危险有关的公用事业运营商。博士后、研究生和本科生参与研究项目，以基础科学为基础，与中心所追求的工业和社会需求相关，将培养新一代科学和工程领域的学术和工业领袖。地下变形通常与流体流动有关，并最终与流体流动相结合。研究这些机制对于提高我们模拟地下流体注入或提取的影响、断层动力学、滑坡和地震震动的地面反应的能力非常重要。因此，地质力学和地质灾害减灾产学研合作研究中心（GMG）将开展跨学科研究，以推进对地质材料在流体存在下如何变形和失效的基本理解。GMG将通过结合实验和建模研究，并利用地质力学和计算力学、遥感和地球物理学的前沿研究来实现其目标。这项研究将有利于涉及管理地下流体的工业活动，例如与能源生产、气体储存和二氧化碳储存有关的活动，并将促进评估和减轻地质灾害的方法，无论是自然灾害还是与工业活动有关的地质灾害。该奖项反映了美国国家科学基金会的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。

项目成果

Investigating the role of thermal stresses on induced seismicity

研究热应力对诱发地震活动的作用

• DOI: 10.1190/segam2020-3423979.1
• 发表时间: 2020
• 期刊: SEG Technical Program Expanded Abstracts 2020
• 作者: Im, Kyungjae;Avouac, Jean-Philippe
• 通讯作者: Avouac, Jean-Philippe

Tectonic tremor as friction-induced inertial vibration

作为摩擦引起的惯性振动的构造震颤

• DOI: 10.1016/j.epsl.2021.117238
• 发表时间: 2021
• 期刊: Earth and Planetary Science Letters
• 影响因子: 5.3
• 作者: Im, Kyungjae;Avouac, Jean-Philippe
• 通讯作者: Avouac, Jean-Philippe

On the role of thermal stress and fluid pressure in triggering seismic and aseismic faulting at the Brawley Geothermal Field, California.

• DOI: 10.1016/j.geothermics.2021.102238
• 发表时间: 2021-09-04
• 期刊: GEOTHERMICS
• 影响因子: 3.9
• 作者: Im, Kyungjae;Avouac, Jean-Philippe
• 通讯作者: Avouac, Jean-Philippe

EikoNet: Solving the Eikonal Equation With Deep Neural Networks

EikoNet：用深度神经网络求解 Eikonal 方程

• DOI: 10.1109/tgrs.2020.3039165
• 发表时间: 2020
• 期刊: IEEE Transactions on Geoscience and Remote Sensing
• 影响因子: 8.2
• 作者: Smith, Jonathan D.;Azizzadenesheli, Kamyar;Ross, Zachary E.
• 通讯作者: Ross, Zachary E.

Constraining Fault Friction and Stability With Fluid‐Injection Field Experiments

通过流体注入现场实验约束断层摩擦和稳定性

• DOI: 10.1029/2020gl091188
• 发表时间: 2021
• 期刊: Geophysical Research Letters
• 影响因子: 5.2
• 作者: Larochelle, Stacy;Lapusta, Nadia;Ampuero, Jean‐Paul;Cappa, Frédéric
• 通讯作者: Cappa, Frédéric