基于光纤Bragg光栅传感的地铁拱顶沉降监测研究

发布时间：2018-03-13 19:29

本文选题：杂散电流　切入点：腐蚀模型　出处：《防灾减灾工程学报》2017年02期 　论文类型：期刊论文

【摘要】：通过分析双列双边授流情况下杂散电流的分布和杂散电流对金属管道的腐蚀模型,得出杂散电流对金属管道的腐蚀模型。在分析拱顶混凝土开裂过程的基础上,研究了杂散电流对隧道拱顶沉降的影响。为了实现对隧道拱顶沉降的实时监测,提出了一种新的基于光纤光栅传感器的监测方法。采用匹配光栅解调,实现了拱顶沉降的辨识,进而建立了拱顶沉降模型,最后通过仿真检测沉降模型的正确性。
[Abstract]:Based on the analysis of the distribution of stray current and the corrosion model of metal pipeline caused by stray current, the corrosion model of metal pipeline is obtained. On the basis of analyzing the cracking process of concrete in arch roof, the corrosion model of metal pipeline is obtained by analyzing the distribution of stray current and the corrosion model of stray current on metal pipe. The effect of stray current on tunnel dome settlement is studied. In order to realize real-time monitoring of tunnel dome settlement, a new monitoring method based on fiber Bragg grating sensor is proposed. Furthermore, the model of dome settlement is established, and the correctness of the model is tested by simulation.
【作者单位】：暨南大学理工学院;暨南大学信息科学技术学院;暨南大学电气自动化研究所;
【基金】：广东省科技计划项目(2013B010401019) 珠海市公共平台项目(2013D0501990002)资助
【分类号】：U231.94;U456.3

【相似文献】