Abstract: Based on the geological feature of the 22202 large mining height fully-mechanized face in the Shendong mining area DAliuta Coal Mine equipment remove channel, using FLAC 3D numerical simulation technology，we obtain results that the 12 overlying the coal mined-out area has no effect on the face. According to the mining geological conditions and the measured strata behavior regulavity of the face, we costruct roof structure model of the equipment remove area, and export the active support strength of stents, on the basis of it, calculating the reference value of chock support working resistance is 9998kN。Considering the differences of the roof structure, we suggest that the used chock support working resistance is 11000kN。The measured rib spalling of equipment remove gateway in 22202working face is slight, no roof fall, and both the roof-to-floor convergence and the roadway’s sides convergence is very small, so the roof control effect is good.