›› 2008, Vol. 29 ›› Issue (11): 3174-3177.

• Fundamental Theroy and Experimental Research • Previous Articles    

Study of application of optical fiber Bragg grating sensing to uniaxial compression experiments of rock

WEI Shi-ming1, 2, CHAI Jing2   

  1. 1. School of Energy Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, China; 2. School of Energy, Xi’an University of Science and Technology, Xi’an 710054, China
  • Received:2007-03-14 Online:2008-11-10 Published:2013-08-07

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Abstract: The application of optical fiber sensing technology to rock deformation test is studied. The axial and radial strains are tested by sticking fiber Bragg gratings and electric strain gauges on rock surface in the uniaxial compression experiment; and test results are compared. The method of cyclic loading is applied; and the rock damaged at the last time. The small deformation only before damage is tested. By three times of loading, the results show that the testing curves of fiber Bragg gratings accord with electric strain gauges’ ones. It is shown that the fiber Bragg grating sensing technology can be used in deformation test of rock. It has certain meanings to increase the level of rock deformation monitoring.

Key words: rock, fiber Bragg grating, uniaxial compression, deformation test

CLC Number: 

  • TP 212.4
  • 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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