Abstract Bridges are one of the oldest types of civil engineering structures and the interaction between the transport and hydrographic networks represents a significant issue in a country such as France. Recently, various cases highlight the importance and vulnerability of civil transport works in relation to their environmental hazards, e.g. floods, and therefore the need to develop integrated observation tools and warning systems in the aim both of optimizing the management system and of increasing the knowledge on real scour processes. This paper reports on the “field approach” task of a research project aiming at improving continuous monitoring in order to follow the evolution of the scour processes of a given bridge or abutment. The first step has been to identify a pilot site, representative of scour vulnerability. After a report of the scour parameters to be monitored, the benchmark study and the choice of monitoring devices available on the market are detailed. Instrumentation, sensor adaptability, limitations (actual measurement ranges, ergonomics, energy supply limits …) and in situ implementation are then presented and discussed. Finally, preliminary measurements, post-treatments and interpretation are detailed.

中文翻译：

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水力学和桥梁：法国监测受冲刷影响的桥梁的案例研究

摘要 桥梁是最古老的土木工程结构类型之一，交通和水文网络之间的相互作用在法国这样的国家是一个重要问题。最近，各种案例凸显了民用交通工程在其环境危害（例如洪水）方面的重要性和脆弱性，因此需要开发综合观测工具和预警系统，以优化管理系统并增加对相关知识的了解。真正的冲刷过程。本文报告了一项研究项目的“现场方法”任务，该项目旨在改进连续监测，以便跟踪给定桥梁或桥台的冲刷过程的演变。第一步是确定代表冲刷脆弱性的试验地点。在报告要监测的冲刷参数后，将详细介绍基准研究和市场上可用的监测设备的选择。然后介绍和讨论仪器、传感器适应性、限制（实际测量范围、人体工程学、能源供应限制……）和原位实施。最后，详细介绍了初步测量、后处理和解释。