近年来,随着经济的快速发展,城市规模不断扩大,高层建筑、地下工程,以及宾馆、饭店、商场、歌舞厅等人员密集场所大量涌现。与此同时,社会单位自身安全防范和火灾情况下逃生之间的矛盾也日益突出,加之一些单位消防安全责任制不落实、安全管理不到位,营业期间锁闭安全出口、封堵 In recent years, with the rapid economic development, the scale of the city has been constantly expanding, high-rise buildings, underground engineering, as well as hotels, restaurants, shopping malls, dance halls and other staff intensive place. At the same time, the contradictions between social units themselves and their escapes in the event of a fire have become increasingly prominent. In addition, some units fail to implement the fire safety responsibility system and safety management is not in place. During the operation period, the safety exit is blocked and blocked