Quasi-Distributed Fiber-Optic Monitoring System for Overlying Rock Mass Pressure on Roofs of Underground Excavations
Mekhtiev A.D. Yurchenko A.V. Ozhigin S.G. Neshina E.G. Al’kina A.D.
March 2021Pleiades journals
Journal of Mining Science
2021#57Issue 2354 - 360 pp.
Abstract: The ground control using optical fibers is discussed. The designed monomode fiber pressure sensor is capable to perform high-precision measurement of overlying rock mass pressure imposed on walls of underground excavation. The mathematical apparatus is presented for the calculation of radiation intensity of optical wave traveling along an optical fiber with and with no mechanical effects. The simulation model is developed for an underground excavation with steel arch support. The model is equipped with the fiber-optic monitoring system and pressure sensors. This model enables practicing the ground control methods and measurements. The critical element of the simulation model is its hardware/software complex with interface showing four check zones with fiber-optic pressure sensors. This monitoring system is explosion-proof and is suitable for operation in super hazardous mines in terms of gas and dust outbursts.
explosive atmosphere , fiber-optic sensors , Karaganda coal basin , mine , mining , monitoring system , optic fiber , overlying rock pressure , safety , underground excavation
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Seifullin Kazakh Agrotechnical University, Nur-Sultan, 010000, Kazakhstan
Tomsk Polytechnical University, Tomsk, 634050, Russian Federation
Karaganda Technical University, Karaganda, 100012, Kazakhstan
Seifullin Kazakh Agrotechnical University
Tomsk Polytechnical University
Karaganda Technical University
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