Geophysical monitoring of the integrity of water-retaining earth structures

保水土结构完整性的地球物理监测

• 批准号: 2142398
• 金额: --
• 依托单位: Lancaster University
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2018
• 资助国家: 英国
• 起止时间: 2018 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2142398
• 关键词: Geophysical; monitoring; integrity; water; retaining

Failure of water-retaining earth structures (e.g. flood embankments and dams) can be devastating, in some cases leading to loss of life and/or huge engineering and environmental restoration. Current monitoring approaches are heavily dependent on either surface observations, which can only address failures that have already begun, or point sensors, which sample a very small volume of ground and are therefore inadequate as a means of detecting localized deterioration. This project aims to provide new approaches for monitoring the integrity of such geotechnical assets, by exploiting the potential of geophysical imaging approaches. Such approaches may enable volumetric tracking of structural changes associated with deterioration, motion of fluids, flow pathways and ground movement, thereby helping to prevent catastrophic failure by identifying problems at a much earlier stage. Although some attempts to use geophysics for this application have been made (see examples in reference list), recent developments in field-based geophysical experimentation and data processing need to be exploited in order to realise the full potential. In this studentship we aim to bring together expertise at Lancaster and the British Geological Survey (BGS) in order to develop new approaches for monitoring the integrity of water-retaining earth structures.

蓄水土结构（如防洪堤和水坝）的破坏可能是毁灭性的，在某些情况下会导致生命损失和/或巨大的工程和环境恢复。目前的监测方法严重依赖于地面观测，只能解决已经开始的故障，或点传感器，采样非常小的地面体积，因此不足以作为检测局部恶化的手段。该项目旨在通过利用地球物理成像方法的潜力，为监测此类岩土工程资产的完整性提供新的方法。这种方法可以实现与劣化、流体运动、流动路径和地面移动相关联的结构变化的体积跟踪，从而通过在更早的阶段识别问题来帮助防止灾难性故障。虽然已经尝试将地球物理学用于此应用（参见参考列表中的示例），但需要利用基于野外的地球物理实验和数据处理的最新发展，以实现全部潜力。在这个学生奖学金，我们的目标是汇集专业知识在兰开斯特和英国地质调查局（BGS），以开发新的方法来监测保水土结构的完整性。