石胡兴Shi Hu-xing

（中铁二院昆明勘察设计研究院有限责任公司，云南，650200）

（Kunming Survey, Design and Research Institute Co. Ltd. of CREEC, Yunnan,650200）

摘要：近年来新旧规范标准更替，存在地铁行业规范、人防规范、建筑规范共同指导地铁车站防烟设计的情况；对地铁车站的消防专用通道及内部楼梯常见的几种类型进行介绍，并简要列举各规范对地铁楼梯间设置的规定异同；结合昆明某地铁工程实际案例，探讨参照现行标准规定的防烟系统计算方法设计地铁防烟系统的设计计算风量的适用性，结合国内外研究观点对地铁防烟系统的设计疏散门开启的楼层数量(N1)取值给出建议取值。 

Abstract：In recent years, Replacement of old and new specifications and standards, bring about the situation that the smoke containment design of subway stations need stick to "the subway industry codes", "civil air defense codes" and "building codes"; Introduces several common types of Fire special access and inner stairwell in subway stations, and briefly lists the differences and similarities between the provisions of various specifications on the setting of subway staircases; Based on the actual case of a metro project in Kunming, discussed the applicability of the design and calculation air volume of the subway smoke containment system, which was designed with reference to the calculation method of the smoke control system specified in the current standards, and the recommended value of the design opening doors during evacuation (N1) in the subway smoke control system was given in combination with domestic and foreign research points.

关键词：地铁车站；加压送风系统；防烟设计；消防专用通道；内部楼梯

Key words：Subway stations; Air pressurization system; Smoke containment design; Fire special access; Inner stairwell