通过对22121回风巷煤与瓦斯动力现象分析，总结了这次动力现象的成因。
Through the analysis for the 22121 wind alley coal and gas power phenomenon, have summarized the cause of this time power phenomenon.
利用理论分析所得结论，对淮北朱庄矿3625较大采高工作面风巷进行巷旁支护设计及工程实践。
The results are applied successfully to the design and engineering practice in the airway of the high working face No. 3625 of Zhuzhuang Mine, Huaibei.
本实用新型还可以设置成节风窗、盲巷封闭。
The utility model can be set into an air-saving window or blind drift block.
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