工程技术论坛Engineering Technology Forum

基于地面雷达的结构微小位移监测
贺佳欣 杜强 李佳航

新疆理工职业大学，新疆，844004；

摘要:现代结构微变形健康监测技术对监测方法的精度、便捷性和成本提出了更高要求。传统监测方法难以满足工程需求，因此迫切需要新的技术手段来适应现代健康监测的需求。随着调频连续波（FMCW）毫米波雷达技术的快速发展，其已开始进入人们的视野。为此，本文以 FMCW 毫米波雷达为研究对象，阐述了地基干涉雷达测量的基本原理，介绍了地基雷达一维测距的基本原理，并对某桥梁进行了现场监测，获取并分析了动态挠度曲线、固有频率等竖向振动参数，以衡量桥梁的运营性能。结果表明，该监测结果符合铁路桥梁相关通用规范对铁路桥梁的要求。

关键词：健康监测技术；调频连续波（FMCW）；干涉测量法；结构位移测量

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