Yangcheng coal mine-650 south wing track roadway is a typical fault fracture zone roadway. At the initial stage, it is supported by Ф 168 × 8 straight wall semicircle arch concrete-filled steel tube support. Affected by dynamic pressure, the support is partially deformed half a year later. Based on the finite element analysis of the mechanical properties of the original concrete-filled steel tubular support, the optimal support scheme based on the circular concrete-filled steel tubular support of the shallow bottom arch is proposed, and the finite element analysis is used to verify that the support performance meets the stability requirements of the roadway. After the optimization of support scheme, the roadway is stable for a long time, which provides reference for other similar roadway support.<br>
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