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介绍成都某侧式地铁站台工程概况。选用FDS建立站台模型,设置火源功率大小为10 MW,选取2个火源位置、3种排烟模式设计工况,研究火灾发生在站台中部和站台端部时不同通风模式下烟气温度、能见度等参数变化规律。对比各工况下火场温度、能见度分布情况,分析不同排烟情况下烟气运动机理,得出火源位于站台端部时推送式加强排烟模式最优,火源位于站台中部时局部加强排烟模式最优。
Introduction of Chengdu side of the subway station project overview. FDS was used to set up the station model. The power of the fire source was set as 10 MW. Two fire source locations and three exhaust mode design conditions were selected to study the flue gas temperature under different ventilation modes in the middle of the platform and on the platform end. Visibility and other parameters change. Comparing the distribution of fire temperature and visibility under different operating conditions, analyzing the movement mechanism of flue gas under different smoke exhaust conditions, the conclusion is drawn that when the fire source is located at the end of the platform, Best smoke pattern.