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混凝土重力坝裂缝观测的光纤传感网络
引用本文:刘浩吾.混凝土重力坝裂缝观测的光纤传感网络[J].水利学报,1999,30(10):0061-0065.
作者姓名:刘浩吾
作者单位:四川大学水电学院,成都,610065
基金项目:国家自然科学基金委员会资助,中国长江三峡工程开发总公司资助
摘    要:首次提出了混凝土裂缝监测的基于光时域反射技术的全分布式光纤传感网络,混凝土模型试验表明它以高分辨率(0.01mm)感知缝宽,且能定位,能实施大范围、连续、立体检测,对混凝土坝裂缝监测特别有用。对三峡重力坝建议了典型布置方案。

关 键 词:分布式光纤传感  混凝土裂缝  混凝土重力坝  光纤传感网络  大坝安全监测

Optical fiber sensor network for crack monitoring in concrete gravity dams
Liu Haowu.Optical fiber sensor network for crack monitoring in concrete gravity dams[J].Journal of Hydraulic Engineering,1999,30(10):0061-0065.
Authors:Liu Haowu
Institution:Sichuan University
Abstract:A full distributed optical fiber sensor network,based on optical time domain reflectometry,for concrete crack monitoring is presented for the first time.Model tests show that it not only can detect crack widths with high resolution but also localize the cracks.Thus,the continuous and special observation for the dam body in a large range can be carried out.This is particularly useful for crack monitoring of concrete dams.The scheme of application to the Three Gorges Project is proposed.
Keywords:optical fiber sensor  network  crack  concrete gravity dam  safety monitoring
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