For centuries, the interaction between the transport and hydrographic networks represents a significant issue in a country such as France. For example, the French railway network includes 1700 river-crossing structures and an important length of embankments either forming river banks or adjacent to watercourses exposed to scouring processes. 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 relies to a French research project named SSHEAR which objective is to improve understanding of the scouring process through the use of innovative observation tools and physical and numerical hydraulic modelling. This part of the project aims at improving continuous monitoring in order to follow the evolution of the scour processes of a given bridge or abutment. After a presentation of the experimental site, the instrumentation is described as well as its in situ implementation. The data analysis process is given and results are commented before the presentation of some perspectives part.

几个世纪以来，运输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。例如，法国铁路网包括 1700 个跨河结构和一段重要长度的堤坝，这些堤坝形成了河岸，或者与暴露在冲刷过程中的水道相邻。最近，各种案例凸显了民用交通工程对其环境危害（例如洪水）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，以优化管理系统和增加对环境的了解。真正的冲刷过程。本文依赖于一个名为 SSHEAR 的法国研究项目，该项目旨在通过使用创新的观测工具以及物理和数值水力模型来提高对冲刷过程的理解。该项目的这一部分旨在改进连续监测，以跟踪给定桥梁或桥台冲刷过程的演变。在介绍了实验场地后，描述了仪器及其现场实施。给出了数据分析过程并对结果进行了评论，然后再介绍了一些观点部分。描述了仪器及其现场实施。给出了数据分析过程并对结果进行了评论，然后再介绍了一些观点部分。描述了仪器及其现场实施。给出了数据分析过程并对结果进行了评论，然后再介绍了一些观点部分。