Quantifying the impact of 3D effects on 3D Electrical Resistivity Tomography data at Mactaquac Dam, New Brunswick

量化 3D 效应对新不伦瑞克省 Mactaquac 大坝 3D 电阻率断层扫描数据的影响

• 批准号: NE/V010123/1
• 负责人: Andrew Binley
• 金额: $ 0.72万
• 依托单位: Lancaster University
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2020
• 资助国家: 英国
• 起止时间: 2020 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=NE%2FV010123%2F1
• 关键词: Quantifying; impact; 3D; effects; Electrical

EPSRC : John Ball : EP/R513076/1 Geophysical techniques are being increasingly used to monitor the structural conditions of dams, due to their widespread coverage and ability to detect subsurface issues, such as the development of seepage pathways. One such technique is Electrical Resistivity Tomography (ERT), which is sensitive to moisture content and porosity, meaning it can be useful for detecting areas of potential seepage, and therefore parts of the dam which are failing.Analysis of geophysical data often requires computer models. In my PhD I have been exploring how such models can lead to incorrect interpretations if the 3D geometry of the site or dynamic variation in water levels adjacent to the dam are not accounted for. This exchange will allow me to apply some of the approaches I have been working on to an established site in Canada where geophysical techniques have been applied. I anticipate that the work will enable greater certainties in data interpretations.

EPSRC：John Ball：EP/R513076/1地球物理技术越来越多地用于监测大坝的结构条件，因为它们的广泛覆盖范围和检测地下问题的能力，例如渗透途径的发展。一种这样的技术是对水分含量和孔隙率敏感的电阻率断层扫描（ERT），这意味着它可用于检测潜在渗流区域，因此大坝的一部分失败。地球物理数据的分析通常需要计算机模型。在我的博士学位中，我一直在探索如果不考虑该模型的3D几何形状，或者不考虑与大坝相邻的水位的动态变化，如何导致错误的解释。这种交流将使我能够将我一直在研究的一些方法应用于加拿大已建立的地球物理技术的建立现场。我预计这项工作将在数据解释中获得更大的确定性。