Climate change impacts on flood protection embankments

长线性资产（LLAs）是长距离提供关键服务的基础（例如公路和铁路路基和路堑、管道垫层、防洪结构）。这个博士学位的重点是防洪设施的岩土工程方面。目前，确切的原因和失败的时间知之甚少。意外的故障会导致严重的中断，并伴随着高昂的成本。目前解决未来故障的方法主要是基于过去的经验，这限制了对未来性能的实际推断。此外，它的使用越来越频繁，并受到越来越极端的天气模式的影响。这些因素联合收割机大大增加了未来故障的可能性。气候变化已被确定为推动这一变化的主导因素之一。本博士将调查气候变化对洪水防洪的恶化和性能的影响。将对英国赫克瑟姆沃登的防洪堤进行案例研究，以便从全尺寸资产的季节性行为中获得测量结果。这些测量结果将用于校准/验证数值建模方法。这种数值模拟方法将被用来模拟一套洪水的行为，预测气候变化模式，以提高我们对退化过程的理解。

Long Linear Assets (LLAs) are fundamental to the delivery of critical services over long distances (e.g. road & railway embankments and cuttings, pipeline bedding, flood protection structures). The focus of this PhD is on the geotechnical aspects of flood protection embankments.At present the exact reasons for and timing of failure are poorly understood. Unanticipated failures cause severe disruption with associated high costs. Current approaches to address future failure are largely based on past experience and this limits realistic extrapolation to future performance.As the infrastructure becomes older its condition deteriorates. In addition, it is ever more intensively used and subject to increasingly extreme weather patterns. These factors combine to significantly increase the likelihood of future failures. Climate change has been identified as one of the dominant factors driving this change.This PhD will investigate the impacts of climate change on the deterioration and performance of flood embankments. A case study flood embankment at Warden, Hexham, UK, will be instrumented to in order to obtain measurements from seasonal behaviour in a full-scale asset. These measurements will be used to calibrate/validate a numerical modelling approach. This numerical modelling approach will then be used to simulate the behaviour of a suite of flood embankments to projected climate change patterns to enhance our understanding of deterioration processes.