Seismic imaging for improving flood defence management

合作伙伴：环境署、运河和河流信托、北爱尔兰水务/Aecom、RSKChallenge：我们的合作伙伴共同拥有超过10,000公里的挡水土方工程（堤防/水坝），保护英国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凸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，发展和维护有弹性的基础设施对我们的合作伙伴和所有英国岩土技术资产所有者至关重要。及早发现土方工程的不良/恶化状况，对于具有成本效益的维修和预防危险和昂贵的故障至关重要。然而，目前的土方工程状况评估实践通常是基于视觉观察，很少或没有关于其潜在内部状况的信息。该项目将展示一种创新的地球物理方法，使用地震表面波（SW）对内部土方状况进行非侵入性评估，同时调整输出以确保与合作伙伴的管理系统兼容。这种方法将支持资产管理决策，例如，维护优先级；监测工作的选择/配置和干预措施的选择/目标。SW数据采集的速度、高空间覆盖率和相对低成本将消除预防性管理的主要障碍。目的/目标：本项目旨在将最近EPSRC项目“GEOCARE”的研究成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) SW数据将在选定的合作地点获得，并将用于导出2D/3D资产状况模型。O)调整该技术以确保与合作伙伴的管理系统兼容。A)项目工作人员将被短期借调到每个合作组织，以便更好地了解他们的状况评估实践、数据库，并根据他们的要求优化调查结果。与我们的合作伙伴定期召开利益相关者会议，也将确保科学、工程和信息交付的发展是适当的。O)在我们的项目合作伙伴中永久嵌入这些知识和能力。A)除了借调和利益相关者会议之外，还将编写关于将软件集成到资产排序、优先级和干预计划中的指导方针。O)广泛传播项目的技术成果。A)举办工作坊，向广大观众展示项目的技术成果。研究结果和建议将通过项目网站、行业杂志上的文章以及与中国科学与工业研究所的案例研究进一步传播。主要成果：将为每个合作伙伴的场地开发2D/3D体素条件模型，以展示SW技术（D1）。这将使对维护和补救作出早期知情的决定成为可能，从而消除预防性管理的障碍。这些模式将在每个组织的咨询和借调后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在状态评估实践（D3）中使用软件输出的指南，以进一步嵌入知识。将举办一个研讨会，向广大持份者展示该项目的技术成果和主动资产管理的好处（D4）。结果和建议将通过项目网站（D5）、工业杂志上的文章（D6）和与CIRIA一起出版的案例研究（D7）进一步传播。持续时间：12个月总费用：139,866英镑

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