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| 混凝土高坝裂缝光纤分布式监测能力的研究 | |
| 引用本文： | 吴永红,苏怀智,徐洪钟,高培伟,蔡海文.混凝土高坝裂缝光纤分布式监测能力的研究[J].光子学报,2007,36(4):722-725. |
| 作者姓名： | 吴永红 苏怀智 徐洪钟 高培伟 蔡海文 |
| 作者单位： | 1. 河海大学,水利水电工程学院,南京,210090 2. 南京工业大学,土木工程学院,南京,210093 3. 中国科学院上海光学精密机械研究所,信息光学研究室,上海,201800 |
| 基金项目： | 国家自然科学基金重点项目(50539030 ,50539010)，中国水电工程顾问集团公司科学研究项目(CHC-KJ-2004-12)资助 |
| 摘 要： | 基于单点裂缝模型试验结果分析,提出了一种利用瑞利散射的工程结构裂缝光纤监测复用能力的方法,得到水工混凝土裂缝光纤监测两种典型方案的裂缝复用能力,结合三峡工程泄洪坝段上游面出现的裂缝,进行了光纤裂缝传感复用能力的工程适用性分析,进一步揭示工程裂缝光纤分布式监测能力研究的意义. |
| 关 键 词： | 光纤传感 裂缝监测 瑞利散射 复用能力 大坝安全 三峡工程 |
| 文章编号： | 1004-4213（2007）04-0722-4 |
| 收稿时间： | 2006-01-11 |
| 修稿时间： | 2006-01-11 |
Study on Mmultiplexing Capability of Huge Concrete Dam Crack Distributed Fiber Optic Monitoring |
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| WU Yong-hong,SU Huai-zhi,XU Hong-zhong,GAO Pei-wei,CAI Hai-weng.Study on Mmultiplexing Capability of Huge Concrete Dam Crack Distributed Fiber Optic Monitoring[J].Acta Photonica Sinica,2007,36(4):722-725. | |
| Authors: | WU Yong-hong SU Huai-zhi XU Hong-zhong GAO Pei-wei CAI Hai-weng |
| Institution: | 1 College of Water Conservancy and Hydropower Engineering,Hohai University,Nanjing 210090,China;2 College of Civil Engineering,Nanjing University of Technology,Nanjing 210093,China;3 Shanghai Institute of Optics and fine mechanics,Chinese Academy of Sciences,Shanghai 201800,China |
| Abstract: | The means of investigating the multiplexing capability of Rayleigh scattering-based distributed fiber optic crack sensing based on single-point crack model experiment results was proposed.The multiplexing capabilities of two kinds of typical hydraulic engineering concrete crack fiber optic monitoring programs were obtained.Combined with the cracks occurring near the upstream face of the Three Gorges Project spillway dam section,the engineering applicability of the multiplexing capability of the fibre optic crack sensing was analysed, and the significance of the investigation of large engineering structures distributed fiber optic crack sensing multiplexing capability was further demonstrated. |
| Keywords: | Fiber optic sensing Crack monitoring Rayleigh scattering Multiplexing capability Dam safety Three gorges project |
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