分布式光纤传感技术在煤矿地质监测中的应用

doi:10.3969/j.issn.0255-8297.2020.02.002

Abstract

Abstract: Coal is the main source of energy in China, and coal mine geological monitoring is an important guarantee for the safe production of coal mines. Distributed optical fber sensing technology has the advantages of sensing continuity, high precision, antielectromagnetic interference and corrosion resistance, and has been applied in coal-mine geological monitoring in recent years. First, this paper introduces the principle of Brillouin optical time-domain reflectometry (BOTDR) technology and its applications in the coal-mine geological monitoring. Second, a practical application of BOTDR to monitor the deformation of coal-mine goaf is demonstrated. It shows that the distributed optical fber measurement could sufciently meet the requirements of coal-mine geological monitoring and has a good application prospect.

Key words: optical fber sensing, Brillouin optical time domain reflectometry(BOTDR), coal-mine geological monitoring, goaf stability, formation deformation monitoring

CLC Number:

TD325

LI Shinian, ZHANG Xuping, SONG Hong, CHEN Jian, ZHANG Yixin, LU Jinbo, ZHAO Xiaojing. Distributed Optical Fiber Sensing Technology and Its Application in Coal Mine Safety Production[J]. Journal of Applied Sciences, 2020, 38(2): 215-225.

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Distributed Optical Fiber Sensing Technology and Its Application in Coal Mine Safety Production

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