| 本文已被：浏览 755次 下载 787次 |
|
|
|
| 闸墩水管冷却的光纤光栅温度监测及反馈分析 |
|
周宜红1,黄耀英1,严寒柏2,周建兵1,周志强2,刘杨3
|
1. 三峡大学水利与环境学院,湖北,宜昌,443002
2. 安徽省治淮重点工程建设管理局,安徽,合肥,230000
3. 水利建筑安装工程公司,安徽,颍上,236200
|
|
| 摘要: |
| 将光纤Bragg光栅温度传感技术应用于水闸工程的闸墩进行实时温度监测,同时对该工程进行施工期温度场和应力场反馈分析.将光纤光栅温度传感器串联熔接形成准分布式测温系统,既具有分布式光纤测温的优点,又可克服分布式光纤测温精度不高以及常规仪器点式监测等缺点.由于闸墩混凝土是薄壁结构,其温度特性和应力状态受混凝土浇筑前后几天的气温影响较大,建议结合周天气预报,将光纤光栅温度传感技术与温度场和应力场仿真分析相结合,进行实时在线监测、实时仿真和实时反馈,及时采取合理的温控措施. |
| 关键词: 闸墩 光纤Bragg光栅 温度 监测 反馈 |
| DOI： |
| 分类号:TV315 |
| 基金项目:国家自然科学基金资助项目(51079079); 教育部科学技术研究重点项目(208092); 湖北省教育厅科学技术研究项目(Z200713001,D20101207); 三峡大学基金资助项目(2008A007,2008B041,KJ2010B003) |
|
| FBG temperature monitoring and feedback analysis of water-pipe cooling in sluice pier |
|
ZHOU Yi-hong1,HUANG Yao-ying1,YAN Han-bo2,ZHOU Jian-bing1,ZHOU Zhi-qiang2,LIU Yang3
|
|
ZHOU Yi-hong1,HUANG Yao-ying1,YAN Han-bo2,ZHOU Jian-bing1,ZHOU Zhi-qiang2,LIU Yang3(1.College of Hydraulic & Environmental Engineering,China Three Gorges University,Yichang 443002,China,2.Anhui Provincial Authority for Huaihe River's Key Projects Construction and Management,Hefei 230000,3.Company of Hydraulic Construction and Installation Engineering,Yingshang 236200,China)
|
| Abstract: |
| Fire-new FBG temperature sensor technology is applied in sluice engineering for real-time monitoring of sluice pier's temperature.The sluice engineering's temperature and stress field are feedbacked and analyzed.Quasi-distributed system can be composed by splicing several FBG temperature sensors.It has advantages of distributed temperature system with high precision.Though the sluice pier is a thin-walled concrete structure,the air temperature in sluice pier placement highly influences the sluice pier's tem... |
| Key words: sluice pier fiber Bragg grating(FBG) temperature monitoring feedback |
