[12] Zhu H, Shi B, Zhang C. FBG-based monitoring of Geohazards： Current status and trends[J]. Sensors, 17, 452(2017).

[13] Lee B. Review of the present status of optical fiber sensors[J]. Optical Fiber Technology, 10, 57-79(2003).

[14] Culshaw B. Optical fiber sensor technologies： Opportunities and perhaps pitfalls[J]. Journal of Lightwave Technology, 22, 39-50(2004).

[16] Miguel J, Rodriguez L, Quintela A et al. Fiber optic sensors in structural health monitoring[J]. Journal of Lightwave Technology, 29, 587-608(2011).

[17] Huang X D, Wang Y, Sun Y Y et al. Research on horizontal displacement monitoring of deep soil based on a distributed optical fiber sensor[J]. Journal of Modern Optics, 65, 158-165(2017).

[18] Zhang Q, Sun Y, Zhang Z et al. Strain transfer in distributed fiber optic sensor with optical frequency domain reflectometry technology[J]. Optical Engineering, 58, 27109(2019).

[19] Zhang Z L, Sun Y Y, Zhang Q H et al. Applications of optical frequency-domain reflectometry technology in strain-deformed configuration conversion of structural surface deformed configuration measurement[J]. International Journal of Distributed Sensor Networks, 15, 1-9(2019).