摘要：When the train runs through the tunnel, it will produce large lateral alternating wind pressure because of the large ratio of the section area of the train to the area of tunnel, the long tunnel and the high speed.It is more likely to cause the loosening of connecting pasts, shedding of panel, and dumping of the door body under the lateral wind pressure. And in this situation, protection door will easily invade the limit, which threatens the traffic safety. There are many damage sources of traffic safety accident caused by the protection door. And the degree of damage caused by different damage sources is also different. Accordingly, formulating corresponding measures to different degrees of damage will greatly improve the traffic safety. In this paper, an analysis method of damage source for damage accident of protection door was proposed, as well as the corresponding scheme. which would guide the whole process of the design, production, construction, monitoring and maintenance of the protection door.%列车在隧道内运行通过时, 由于列车截面积与隧道面积之比较大, 且隧道长度长, 运行速度快, 列车在隧道内会产生较大的侧向风压.防护门在侧向风压的作用下, 容易出现连接件松动、面板脱落、门体倾倒等状况, 易侵入限界, 严重影响行车安全.由防护门造成的行车安全事故的危险源较多, 不同危险源所导致的危害程度不同, 开展隧道防护门的风险评价研究, 并制定对应措施将极大地提高行车安全.因此, 针对现有问题, 提出一种针对防护门的风险评价及处理方案, 指导隧道防护门的设计、生产、施工、监测、维护保养等全过程.
