光通信研究Issue(4)：226-232,7.DOI:10.13756/j.gtxyj.2026.240229
基于传感光纤主动加热技术的混凝土渗漏监测研究
Study on Leakage Monitoring based Sensing Fiber Active Heating Technology
摘要
Abstract
[Objective]China ranks among the world leaders in the number of hydraulic structures,such as dams.The use of opti-cal fibre sensing technology for hydraulic structures leakage monitoring technology is one of the hot directions in recent years.The purpose is to enhance fiber-optic-based monitoring technology for identifying leakage locations in seepage walls.[Methods]A physical model of concrete leakage monitoring was built using Brillouin Optical Time Domain Analysis(BOTDA)sensing fibre optic active heating technology.The study explored the fibre optic temperature sensitivity law and leakage identification effect by changing the fibre optic heating power,fibre optic deployment spacing,and leakage rate.[Results]The experimental results show that,the technology of active heating has a high level of sensitivity in detecting concrete leakage,particularly when the heating power is high.The ability of the fibre to sense leakage decreases as the distance between the leakage channel and the heatable sensing fibre increases.The relationship between the leakage rate and the fibre-optic monitoring of temperature change is inversely proportional.However,the degree of influence is also related to the fibre-optic heating power and the distance between the leak-age channels.[Conclusion]The BOTDA sensing fibre-optic active heating technology is a viable method for monitoring concrete leakage.However,cost,safety and environmental impact need to be considered in practical applications.关键词
传感光纤技术/布里渊光时域分析/防渗墙/主动加热技术/大坝渗漏监测Key words
sensing fiber/BOTDA/impermeable wall/active heating technology/leakage monitoring分类
信息技术与安全科学引用本文复制引用
谈洋洋,陶志鹏,严梦尧,邓清禄..基于传感光纤主动加热技术的混凝土渗漏监测研究[J].光通信研究,2026,(4):226-232,7.基金项目
江西省交通运输厅科技项目(2019C0012) （2019C0012）
国家自然科学基金资助项目(42077269) （42077269）
