Author: Bai, Shi-qiang
Title: Application of FBG technology for monitoring strains and displacements of GFRP soil nailing
Degree: M.Sc.
Year: 2015
Subject: Optical fiber detectors.
Structural stability.
Structural analysis (Engineering)
Hong Kong Polytechnic University -- Dissertations
Department: Faculty of Construction and Environment
Pages: xii, 117 leaves : illustrations (some color) ; 30 cm
Language: English
Abstract: In this study, the focus is on FBG sensors for measuring strains of GFRP soil nails to prove the advantages of FBG sensors. According to literature review of FBG and GFRP soil nailing, a lab pullout test was performed. Fiber Bragg Grating (FBG) sensors, strain gauges, LVDTs and a load cell were used to measure axial strain distributions and pullout force during the testing. After pullout testing and monitoring of strain distributions along a soil nail by the FBG sensors, calculation and comparison of data from Fiber Bragg Grating (FBG) sensors and strain gauges have been done. It is found that the FBG sensing technology has a number of advantages, terms of stability and reliability for soil nail monitoring.
Access: restricted access

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Please use this identifier to cite or link to this item: https://theses.lib.polyu.edu.hk/handle/200/7882