InSAR for geotechnical infrastructure: enabling stakeholders to remotely assess environmental risk and resilience.

用于岩土基础设施的 InSAR：使利益相关者能够远程评估环境风险和恢复力。

• 批准号: NE/N013018/1
• 负责人: David Hughes
• 金额: $ 5.92万
• 依托单位: Queen's University Belfast
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2016
• 资助国家: 英国
• 起止时间: 2016 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=NE%2FN013018%2F1
• 关键词: InSAR; geotechnical; infrastructure; enabling; stakeholders

The three stakeholders in this project, Transport Northern Ireland (TNI), Northern Ireland Rail (NIR) and the Department of Enterprise, Trade and Investment (DETI) all have one common need which this project addresses. They are required to monitor ground deformations across their geotechnical assets (e.g. embankments, cuttings and earth retaining structures) using the most efficient, cost effective methods, with a view to minimising and managing the geotechnical risk to their businesses and the road/rail users. The objective of the work therefore is to apply the methodologies that the British Geological Survey (BGS) have already developed through past research projects of assessing the deformation of geotechnical infrastructure, such as slope movement or ground subsidence, using Satellite Interferometric Synthetic Aperture Radar (InSAR). The project will validate this methodology through ground truthing, using geotechnical monitoring and high resolution photogrammetry developed by Queen's University Belfast (QUB). Through this project, the stakeholders will be able to monitor ground deformations in a more cost effective, efficient, more thorough and more robust way, and embed the use of this methodology across their organisations making a step change on how they approach assessment and manage the resilience of their geotechnical infrastructure.TNI anticipate that the use of InSAR data will help form their strategies for monitoring their geotechnical assets and will feed into the existing GIS based risk assessment methods for their infrastructure assets. The site at Straidkilly is only one of many sections along the A2 coast road that is unstable and it is hoped that InSAR will give a much greater insight into the behaviour of a variety of geohazards that impact on the road and will inform their maintenance strategies and lead to more cost effective better targeted maintenance. TNI also are committed to having a better understanding of the mechanisms of failure on the slow moving failures on the Throne Bend in Belfast. The InSAR data will allow a much better correlation between slope movement and rainfall intensity and duration to be undertaken. InSAR data will also allow better mapping of the extent and magnitude of the instability. NIR also hope to be able to correlate the slope instability against rainfall data on the Belfast-Bangor rail line. DETI anticipate that the project will validate new methods of monitoring and provide baseline data of ground motion to form the basis of future strategic decisions in regards to geohazards. The use of InSAR at sites in Carrickfergus will potentially provide greater knowledge of extent of subsidence boundaries and provide indicators to potential catastrophic collapse by analysing SAR data against periods of known rapid collapse of ground.

该项目中的三个利益相关者是北爱尔兰运输（TNI），北爱尔兰铁路（NIR）和企业，贸易和投资部（DETI）都有一个共同的需求，该项目解决了一个共同的需求。他们需要使用最有效，最具成本效益的方法来监测其岩土资产（例如路堤，切口和地球保留结构）的地面变形，以最大程度地减少和管理对其业务和道路/铁路用户的岩土技术风险。因此，这项工作的目的是利用卫星干涉量化合成孔径雷达（INSAR）来应用英国地质调查局（BGS）已经开发出的方法。该项目将使用岩土监测和高分辨率摄影测量法（QUB）开发的岩土监测和高分辨率摄影测量法来验证这种方法。通过这个项目，利益相关者将能够以更具成本效益，高效，更彻底，更稳健的方式监视地面变形，并嵌入该方法的使用跨越其跨组织，对他们进行评估和如何进行逐步评估和管理地理技术的复原力的逐步进行更改。其基础设施资产的方法。 Straidkilly的地点只是A2海岸道路沿线的许多部分之一，它希望INSAR能够更深入地了解各种地缘狂的行为，这些地质心脏会影响道路上的影响，并将为他们的维护策略提供信息，并导致更有效的成本有效地有效地目标维护。 TNI还致力于更好地理解贝尔法斯特王位弯曲的缓慢移动失败的失败机制。 InsAR数据将允许进行坡度运动与降雨强度和持续时间之间的更好相关性。 InsAR数据还将允许更好地映射不稳定性的程度和幅度。 NIR还希望能够将斜率不稳定性与贝尔法斯特 - 框架铁路线上的降雨数据相关联。 DETI预计该项目将验证监视的新方法，并提供地面运动的基线数据，以构成地球扎华那未来战略决策的基础。在Carrickfergus中使用INSAR的使用将有潜在地提供有关沉降边界程度的知识，并通过在已知的快速地面崩溃时期分析SAR数据来为潜在的灾难性崩溃提供指标。

项目成果

Mapping Ground Instability in Areas of Geotechnical Infrastructure Using Satellite InSAR and Small UAV Surveying: A Case Study in Northern Ireland

• DOI: 10.3390/geosciences7030051
• 发表时间: 2017-09-01
• 期刊: GEOSCIENCES
• 影响因子: 2.7
• 作者: Cigna, Francesca;Banks, Vanessa J.;Parker, Kieran
• 通讯作者: Parker, Kieran