打通一矿深部半煤岩巷道支护优化设计及数值模拟研究

Study on Optimization Design and Numerical Simulation for Deep Half Coal Rock Roadway Support in Datong No.1 Mine

针对打通一矿W2078半煤岩运输巷围岩变形严重、支护效果差的问题,利用固压理论对W2078运输巷提出2种优化支护方案,采用FLAC3D进行模拟分析得出:方案Ⅱ比方案Ⅰ垂直位移、水平位移增加显著,由此确定了方案Ⅰ为W2078半煤岩运输巷的支护方案。

For W2078 half coal rock transportation lane deformation serious,support scheme effect is poorer in Datong No.1 mine,using the theory of solid pressure of W2078 transportation lane has designed two kinds of supporting schemes, simulation analysis by using the FLAC3D numericao simulation software, Comparative analysis：scheme I than scheme II vertical displacement and horizontal displacement.Determines the scheme I as sunnort scheme nf W207R half coal rock transport lane.