Support technology for small coal pillar roadway of"roof-supporting along the floor"of thick coal seam
In order to further explore the optimization measures of support schemes in the excavation and mining mode of small coal pillar roadways along the floor of thick coal seams,taking a mine with this feature as an actual research case,the current problems of large displacement,high stress,and large-area distribution of plastic zone are studied through 3D model-ing analysis.Then,combined with the related research literature,the specific roadway support scheme and parameters are determined.Finally,starting from both simulation analysis and on-site measurement,the roadway support scheme is tested.The test results shows that the optimized support technology scheme plays a significant role in reducing stress and deforma-tion,proving that the technical scheme has a certain value of practical application.
国家科技期刊平台
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