Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/20426
Title: Application of optical fiber grating sensor in gravity dam structure model test
Authors: Dong, JH
Xie, HP
Zhang, L
Zhu, HH
Yin, JH 
Hu, CQ
Chen, JY
Keywords: Internal deformation
Monitoring
Optical fibre grating sensor
Overloading method
Structure model
Issue Date: 2009
Publisher: 中國學術期刊 (光盤版) 電子雜誌社
Source: 四川大學學報. 工程科學版 (Journal of Sichuan Union University. Engineering science edition), 2009, v. 41, no. 1, p. 41-46 How to cite?
Journal: 四川大學學報. 工程科學版 (Journal of Sichuan Union University. Engineering science edition) 
Abstract: During the research of hydraulic structure model test, the displacement and strain of dam body and dam foundation are mainly measured by displacement transducers and foil resistance strain gauges on the model surface. For the internal deformation of model under overloading, it will be difficult to measure accurately with conventional monitoring instrument. For a structural model of gravity dam section, beside installing displacement transducers and foil resistance strain gauges on the surface, fiber grating sensors were installed in dam body and dam foundation so that the internal displacement of structural mode could be monitored during overloading. Comparison study shows that the displacements measured using the fiber grating sensor are in good agreement with those from displacement transducers. The test results reveal that the dam foundation overloading safety factor is 6.0, and the failure mechanism of dam foundation under overloading was obtained. The present study confirmed the feasibility of the application of fiber grating sensor in gravity dam structural model test.
URI: http://hdl.handle.net/10397/20426
ISSN: 0253-2263
EISSN: 1009-3087
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