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

摘要/Abstract

摘要： 煤炭一直是中国的主体能源，煤矿地质监测是煤矿安全生产的重要保障.分布式光纤传感技术具有感测点连续、高精度、抗电磁干扰、耐腐蚀等优点，在煤矿地质监测中有重要的应用.该文介绍了布里渊光时域反射（Brillouin optical time domain reflectometry，BOTDR）技术在煤矿地质监测中的应用.重点介绍了采用分布式光纤传感技术进行采空区地层变形监测的方法和结果.结果表明，分布式光纤监测技术能够满足煤矿地质监测需求，具有良好的应用前景.

关键词: 光纤传感, 布里渊光时域反射, 煤矿地质监测, 采空区稳定性, 地层变形监测

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

中图分类号:

TD325

李世念, 张旭苹, 宋宏, 陈健, 张益昕, 陆金波, 赵晓京. 分布式光纤传感技术在煤矿地质监测中的应用[J]. 应用科学学报, 2020, 38(2): 215-225.

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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