Articles | Volume 11, issue 1
https://doi.org/10.5194/gi-11-59-2022
https://doi.org/10.5194/gi-11-59-2022
Research article
 | 
07 Feb 2022
Research article |  | 07 Feb 2022

Research into using a fiber Bragg grating sensor group for three-dimensional in situ stress measurement

Yimin Liu, Zhengyang Hou, Hao Zhou, Guiyun Gao, Lu Yang, Pu Wang, and Peng Wang

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Cited articles

Amadei, B. and Stephansson, O.: Rock stress and its measurement, London, Chapman and Hall, https://doi.org/10.1201/9780203746813-2, 1997. 
Cai, M., Qiao, L., Yu, B., and Wang, S.: Stress Measurement with an Improved Hollow Inclusion Technique In Jinchuan Nickel Mine, Int. J. Mineral. Metal., 7, 157–160, https://doi.org/10.1016/S0022-5096(99)00079-4, 2000 (in Chinese with English abstract). 
Dewolf, S., Wyatt, F. K., Zumberge, M. A., and Hatfield, W.: Improved vertical optical fiber borehole strainmeter design for measuring Earth strain, Rev. Entif. Instrum., 86, 1942–605, https://doi.org/10.1063/1.4935923, 2015. 
Fama, M. and Pender, M. J.: Analysis of the hollow inclusion technique for measuring In Situ rock stress, Int. J. Rock Mech. Min. Sci. Geom. Abstr., 17, 137–146, https://doi.org/10.1016/0148-9062(80)91360-1, 1980. 
Fuhr, P. L., Spammer, S. J., Jung, C. C., and Udd, E.: Fiber optic sensors in the Waterbury bridge, Proc. SPIE, 3489, 124–129, https://doi.org/10.1117/12.323424, 1998. 
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Short summary
We use technical methods of instrument development, calibration experiments, and numerical simulations to develop a new type of in situ stress sensor group using fiber Bragg grating (FBG) sensing technology, which can calculate the in situ stress state of surrounding rock mass by sensing the borehole wall strain. This sensor group lays an important theoretical and experimental foundation for the development and application of FBG hole wall strain gauge.
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