In order to solve a rapid reset and seal key technology problems during a mine shaft disaster period,the standby explosion-proof door and rapid reset technology of the mine ventilation shaft was researched and developed.With deformation simulation and impact resist-ance test of the standby explosion-proof door,the results showed that the standby explosion-proof door could hold the max stress of 189 MPa and the max elastic deformation of 32.2 mm.The designed standby explosion-proof door system and the available explosion-proof door would be completely and mutually independent,could rapidly seal and cover the mine shaft head,could play a same function of the previ-ous explosion-proof door and could have a normal ventilation and a reversed ventilation when a gas explosion occurred in the underground mine.There was a moving air door in the standby explosion door system.When twice or more explosions occurred in the underground mine, the air door could be automatically opened and reset to ensure the normal ventilation during the mine disaster period.%为解决矿井灾变时期立风井快速复位、密封的关键技术难题，研究了煤矿立风井备用防爆门及快速复位技术。备用防爆门变形模拟与抗冲击试验结果表明：备用防爆门能承受最大应力为189 MPa，最大弹性变形量32.2 mm，所设计的备用防爆门系统与现有防爆门完全相互独立，能够在煤矿井下发生瓦斯爆炸后，快速封盖风井井口，发挥与原防爆门相同的功能，既能正常通风又能反风。备用防爆门系统中还设置有活动风门，当井下发生二次甚至多次爆炸的情况下，风门能自动打开、复位，以保证矿井灾变时期的正常通风。
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机译：煤矿安全和健康管理局煤矿安全和健康调查报告：露天矿设施坠落事故2009年2月26日埃文斯维尔车库门公司ID W824印第安纳州埃文斯维尔，minuteman罚款回收厂Covol Fuels No 2 LLC Greenville，muhlenberg County，KY ID No 15-19205
