Experiment Study on Coal Roadways Roof Monitoring Based on the Pre-stretched Optical Fiber Lay out at Fixed-points

• DOI: 10.11648/j.ogce.20200805.12
• Publication Date: 2020-12-28T09:32:48Z
• Authors: Tao Hu; Su Bu; GY Hou; Yan Wang; Ziyi Hu; Zixiang Li; Jinping Liang; Yuliang Zhou; Haoyong Jing
• Keywords: Safety Monitoring; Settlement (finance)

The safety monitoring of coal roadways roof is the key to prevent accidents and ensure mines safety. However, blind zones caused by traditional methods one main reasons frequent accidents. To production, a novel method proposed in this paper, which based on distributed optical fiber sensing (DOFS) pre-stretched layout at fixed points (POFLF). research approach has been carried out through analysis DOFS strain POFLF theory, with help indoor experiment. Finally was applied field roadway roof. Aforementioned verified distribution not only accurately indicate settlement range, but also qualitatively quantitatively demonstrate subsidence displacement. feasibility validation as supplementary or auxiliary resorts were confirmed. paper important reference significance for under similar geological production conditions, be helpful improving mine well.