传感技术学报2025，Vol.38Issue(4)：603-609,7.DOI:10.3969/j.issn.1004-1699.2025.04.005
埋入式光纤的应变传递理论及试验研究
Theoretical and experimental study on strain transfer of embedded optical fiber
郭飞 1孔恒 1侯公羽 2冯东兴 2高盛雷 1周航 2程成2
作者信息
- 1. 北京市政建设集团有限责任公司,北京 100089
- 2. 中国矿业大学(北京)力学与土木工程学院,北京 100083
- 折叠
摘要
Abstract
In the process of rapid development in China's infrastructure construction,concrete has become a significant building material.Distributed fiber optic sensing technology,as an emerging strain monitoring technique,has been widely applied in the monitoring of con-crete cracks and structural health due to its superior performance.However,due to the inherent fragility of optical fibers,they need to be encapsulated and protected in engineering applications,which may result in strain loss between the fiber optic monitoring and the actual structural strain.To verify the accurate monitoring of structural strain by encapsulated fiber optics,theoretical research on embedded op-tical fibers and pull-out tests on grouted tendons are conducted to investigate the transmission efficiency and coupling of fiber optic sen-sors.The research results demonstrate that when using embedded fiber optic deployment,there is excellent coupling between the optical fibers and the poured concrete,and the strain transmission efficiency can reach over 90％.Structural health monitoring can be achieved through distributed fiber optic technology.关键词
分布式光纤/光纤耦合性/应变传递机制/应变传递效率/结构健康监测Key words
distributed optical fiber/fiber optic coupling/strain transmission mechanism/strain transmission efficiency/structural health monitoring分类
建筑与水利引用本文复制引用
郭飞,孔恒,侯公羽,冯东兴,高盛雷,周航,程成..埋入式光纤的应变传递理论及试验研究[J].传感技术学报,2025,38(4):603-609,7.
