›› 2008, Vol. 29 ›› Issue (11): 3161-3164.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Application of fiber optical sensing technology to monitoring axial forces of anchor bolts

LIN Chuan-nian1, 3, LIU Quan-sheng2, GAO Wei2, XIAO Chun-xi2   

  1. 1. School of Civil Engineering & Architecture, Beijing Jiaotong University, Beijing 100044, China; 2. State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China; 3. Hu-Rong Expressway West Section Construction Headquarters of Hubei Province, Enshi 445000, China
  • Received:2006-12-14 Online:2008-11-10 Published:2013-08-07

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Abstract: The basic principle of fiber Bragg grating sensor is described. Through engineering application of fiber Bragg grating sensor to monitoring axial forces of anchor bolts for Longtan tunnel of Hu-Rong Expressway West Section, some important aspects of fiber optical sensing technology applications to geotechnical engineering monitoring, which are selection of sensors, installation of sensors, calibration of sensors and embedding of sensors, et al, are discussed. Through local monitoring, the characteristics of axial forces of anchor bolts are obtained. And some useful experiences with application of fiber optical sensing technology to geotechnical engineering are summarized.

Key words: fiber optical sensing, fiber Bragg grating(FBG), tunnel, bolt axial force, monitoring

CLC Number: 

  • TP 212
  • Please send e-mail to pingzhou3@126.com if you would like to read full paper in English for free. Parts of our published papers have English translations.
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