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近年来,全国各地建设了许多大 型体育馆、会展中心、大型商业建筑 和超市、航站楼、交通枢纽、高层和超 高层建筑。随着国家鼓励开发利用城 市地下空间政策的实施,目前已有并 将还有大量地下人防工程和单建、附 建的地下建筑出现,而且已有不少大 城市正在扩建、新建地下铁道、城市 隧道。这些建设工程的出现,必将给 人员的消防安全疏散带来新的问题, 特别是火灾条件下的疏散指示。
In recent years, many large stadiums, convention centers, large commercial buildings and supermarkets, terminal buildings, transport hubs, high-rise and super-tall buildings have been built across the country. With the implementation of the policy of encouraging the development and utilization of urban underground space in the country, there are already a large number of underground civil air defense projects and underground structures attached to and attached to it, and many major cities are undergoing expansion. Newly built subways and urban tunnels . The emergence of these construction projects will inevitably bring new problems to the evacuation of fire safety personnel, especially in evacuation instructions under fire conditions.