Seismic imaging for improving flood defence management

合作伙伴：环境署、运河和河流信托基金、北爱尔兰水/Aecom、RSK挑战：我们的合作伙伴总共拥有超过10,000公里的挡水土方工程(堤坝/水坝)，这些工程可以保护英国的大片地区免受洪水侵袭。最近极端天气对英国土方工程的影响突显了它们对气候变化的脆弱性，一系列基础设施网络报告了许多故障。鉴于气候变化预计将变得更加极端，开发和维护具有弹性的基础设施对我们的合作伙伴和所有英国岩土资产所有者至关重要。及早识别糟糕/恶化的土方工程条件对于具有成本效益的维护和防止危险和代价高昂的故障至关重要。然而，目前的土方工程条件评估实践通常是基于目测，很少或根本没有关于土方工程内部条件的信息。该项目将展示一种创新的地球物理方法，使用地震面波非侵入性地评估内部土方工程条件，同时调整输出以确保与我们合作伙伴的管理系统兼容。这一办法将支持资产管理决策，例如，包括确定维修优先顺序；选择/配置监测工作和选择/确定干预措施。短波数据采集的速度、高空间覆盖率和这些测量的相对低成本将消除预防性管理的关键障碍。目的/目标：该项目旨在将EPSRC最近一个项目“GEOCARE”的结果转化为保护英国免受洪水侵袭的蓄水土方工程的资产所有者/管理者。目标(O)和支持活动(A)是：O)展示评估内部土方工程状况的创新方法。A)将在选定的合作伙伴现场获取西南数据，并用于得出2D/3D资产状况模型。O)采用该技术以确保与我们合作伙伴的管理系统的兼容性。A)项目工作人员将被短期借调到每个合作伙伴组织，以便更好地了解其状况评估实践、数据库，并根据其要求优化调查输出。与我们合作伙伴的定期利益相关者会议还将确保科学、工程和信息交付的发展是适当的。O)将这种知识和能力永久嵌入我们的项目合作伙伴。A)除了借调和利益相关者会议外，还将编写关于将软件纳入资产排序、优先排序和干预规划的指导方针。o)广泛传播项目的技术成果。a)将组织研讨会，向广大受众展示项目的技术成果。结果和建议将通过项目网站、行业杂志上的文章以及与CIRIA的案例研究进一步传播。主要交付成果：将为每个合作伙伴的站点开发2D/3D体素相关条件模型，以展示软件技术(第1天)。这将使及早作出关于维护和补救的知情决定，从而消除预防性管理的障碍。在每个组织进行咨询和借调后，这些模型将整合到我们合作伙伴的管理系统(D2)中。将为每个合作伙伴制定关于在条件评估实践(D3)中使用软件输出的指导方针，以进一步嵌入知识。将组织一次研讨会，向广大利益相关者展示项目的技术成果和积极主动的资产管理的好处(D4)。结果和建议将通过项目网站(D5)、行业杂志文章(D6)和出版与CIRIA的案例研究(D7)进一步传播。工期：12个月总费用：139,866 GB

Partners: Environment Agency, Canal & River Trust, Northern Ireland Water/Aecom, RSKChallenge: Our partners collectively own over 10,000km of water retaining earthworks (embankments/dams), which protect large areas of the UK from flooding. Recent effects of extreme weather on UK earthworks have highlighted their vulnerability to climate change with numerous failures reported across a range of infrastructure networks. Given that climatic variations are projected to become more extreme, developing and maintaining resilient infrastructure is essential to our partners and all UK geotechnical asset owners.Early identification of poor/deteriorating earthwork condition is essential for cost effective maintenance and prevention of hazardous and expensive failures. Current earthwork condition assessment practice is, however, usually based on visual observations with little/no information available on their underlying internal condition. This project will demonstrate an innovative geophysical approach, using seismic surface waves (SW), for non-invasively assessing internal earthwork condition, while also adapting the outputs to ensure compatibility with our partner's management systems. This approach will support asset management decisions, including, for example, maintenance prioritisation; selection/configuration of monitoring works and selection/targeting of interventions. The speed of SW data acquisition, high spatial coverage and relative low-cost of these measurements will remove key barriers to preventative management. Aims/Objectives: This project aims to translate the findings from a recent EPSRC project "GEOCARE" to asset owners/managers of water retaining earthworks that protect the UK from flooding. The objectives (O) and supporting activities (A) are: O) Demonstrate an innovative approach for assessing internal earthwork condition.A) SW data will be acquired at selected partner sites and will be used to derive 2D/3D asset condition models.O) Adapt this technology to ensure compatibility with our partners' management systems.A) Project staff will be seconded to each partner organisation for short periods in order to better understand their condition assessment practices, databases, and to optimise survey outputs to their requirements. Regular stakeholder meetings with our partners' will also ensure that scientific, engineering and information delivery developments are appropriate. O) Permanently embed this knowledge and capability within our project partners. A) In addition to secondments and stakeholder meetings, guidelines on the integration of SW into asset ranking, prioritisation and intervention planning will be written.O) Widely disseminate the project's technological outcomes.A) A workshop will be organised to showcase the project's technological outcomes to a wide audience. Results and recommendations will be further disseminated through a project website, articles in industry magazines and via a case study with CIRIA. Main Deliverables: 2D/3D voxelated condition models will be developed for each partner's site, to showcase SW technology (D1). This will enable early informed decisions on maintenance and remediation to be made, thereby removing a barrier to preventative management. These models will be integrated within our partner's management systems (D2) following consultation and secondments at each organisation. Guidelines on the use of SW outputs in condition assessment practice (D3) will be developed for each partner to further embed the knowledge. A workshop will be organised to showcase the project's technological outcomes and benefits to proactive asset management to a wide stakeholder audience (D4). Results and recommendations will be further disseminated through a project website (D5), articles in industry magazines (D6) and via publication of a case study with CIRIA (D7). Duration: 12 monthsTotal cost: £139,866