苏州火车站地下环形车道通风安全及火灾烟控技术研究

以苏州火车站地下环形车道的营运通风方案为对象,对正常运营和火灾时的需风量进行计算和分析,并采用计算流体力学方法对车道火灾模式下排烟的有效性进行了模拟研究,确定该车道采用竖井送排式加射流风机进行通风,竖井设在车道的西北和东南两个对角处,有效面积分别为10.2 m2和11.7 m2,为地下空间运营通风方案选择和计算提供参考依据。

Study on the Ventilation Safety and Smoke Control Technology in Underground Annular Driveway of Suzhou Railway Station

By taking the ventilation scheme of the underground annular driveway of Suzhou railway station as the object of study,the air volume needed both in the normal situation and fire situation was calculated and analyzed.The effectiveness of smoke exhausting under fire mode was simulated by using Computational Fluid Dynamics.The result showed that the ventilation mode in the annular driveway should use shaft ventilation with jet fans.The shafts were respectively set at the northwest and southeast corners,with active areas respectively being 10.2m2 and 11.7m2,this study provides referential basis for the choosing of ventilation system of underground engineering.