High frequency electromagnetic disturbance engineering calculation model in coal mine tunnel
Abstract：Engineering calculation model of high frequency electromagnetic disturbance in mine tunnel was proposed.With a systematic analysis of high frequency electromagnetic transmission mechanism in coal mine,the energy loss was divided into three stages:qusi-free space transmission stage,high-order modes conversion and stable stage,main transmission mode stage.By integrating with analytic method and finite element method,the calculation formulas of electrical field strength and propagation loss were given respectively.Three-dimensional finite element simulation and field measurement both proved the validity and convenience of the model.
Keywords：coal mine tunnelelectromagnetic disturbancecalculation model
Publication Date：2012-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 2118-2122 )