Research on Efficient Mining Technology for Coal Roadways
In order to solve the problem of mismatched excavation efficiency and mining efficiency affecting production efficiency in coal mine production,based on the analysis of the current status of coal roadway excavation technology,a research idea is proposed to optimize the excavation technology from two aspects:excavation path and empty top distance.Then,numerical simulation software was used to compare the vertical stress and deformation of the surrounding rock of the working face corresponding to different excavation paths and empty top distances,and finally the snake shaped path and 4 m empty top distance suitable for rapid excavation were obtained.
serpentine pathempty top distancevertical stressplastic deformation zoneexcavation technology
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