摘要
本文简要介绍了分布式光纤和光栅光纤测温传感器原理及在三峡坝前水库、三峡升船机塔柱的埋设应用。通过对光纤测温传感器在坝前库水温的资料分析,得出了三峡坝前水库基本无水温分层现象的结论,光纤测温传感器也为在不同高程空间上的库水温度连续监测和坝前水库淤积监测提供了新的方法。同时光纤光栅技术成功应用在升船机塔柱施工期及运行期的混凝土温度监测,为该类监测仪器的应用积累了宝贵的工程经验。
This paper briefly introduces the principles of distributed optical fiber and fiber Bragg grating temperature sensor and their application in the embankment of the Three Gorges Dam upstream reservoir and the Three Gorges ship lift tower.Based on the data analysis of the optical fiber temperature sensor in upstream reservoir,it is concluded that there is basically no water temperature stratification phenomenon in the Three Gorges Dam upstream reservoir.The optical fiber temperature sensor also provides a new method for continuous monitoring of reservoir water temperature at different elevation spaces and sedimentation monitoring of the upstream reservoir.At the same time,the successful application of fiber Bragg grating Technology in the construction and operation period of the ship lift tower has accumulated valuable engineering experience for the application of optical fiber temperature sensors.
作者
刘勇军
丁琦华
耿峻
LIU Yongjun;DING Qihua;GENG Jun(CTG Operation and Administration Center for River Basin Hydro Complex,Yichang 443133,China;CTG Hubei Energy Group Co.Ltd.,Wuhan 430077,China)
出处
《水电与抽水蓄能》
2022年第6期78-84,共7页
Hydropower and Pumped Storage
基金
科技部重点研发项目复杂工程力学高性能应用软件系统研究(2016YFB0201005)。
关键词
分布式光纤
光纤光栅
温度传感器
坝前水库
升船机塔柱
distributed optical fiber
fiber Bragg grating
temperature sensor
dam upstream reservoir
ship lift tower
