Landslide Monitoring Based on High-Resolution Distributed Fiber Optic Stress Sensor

查看全文 作　　者：Zhi-Yong [1]Dai;Yong [1]Liu;Li-Xun [1]Zhang;Zhong-Hua [1]Ou;Ce [2]Zhou;Yong-Zhi [1]Liu

机构地区：[1]Key Laboratory of Broadband Optical Fiber Transmission & CommunicationNetworks (Ministry of Education of China), School of OptoclectronicInformation, University of Electronic Science & Technology of China,Chcngdu, 610054, China;[2]Exploration Engineering Institute, GAGS, Chengdu,610081, China.

出　　处：《Journal of Electronic Science and Technology of China》索引2008年第6卷第4期,共4页

基　　金：supported by the National Natural Science Foundation of China under Grant No. 60377021;partially supported by Program for New Century Excellent Talents in University under Grant. No. NCET-07-0152;Sichuan Scientific Funds for Young Researchers under Grant No. 08ZQ026-012. 摘　　要：A landslide monitoring application is presented by using a high-resolution distributed fiber optic stress sensor. The sensor is used to monitor the intra-stress distribution and variations in landslide bodies, and can be used for the early warning of the occurrence of the landslides. The principle of distributed fiber optic stress sensing and the intra-stress monitoring method for landslides are described in detail. By measuring the distributed polarization mode coupling in the polarization-maintaining fiber, the distributed fiber stress sensor with stress measuring range 0 to 15 MPa, spatial resolution 10 cm and measuring range 0.5 km, is designed. The warning system is also investigated experimentally in the field trial. 关键词：分布式纤维光学应力敏感器滑坡警告监视系统光纤

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Landslide Monitoring Based on High-Resolution Distributed Fiber Optic Stress Sensor

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