自然通风模式在成都地铁中的应用

结合规划、地面现状及线路埋深情况,成都地铁1号线南部区间隧道采用了顶部开口的自然通风模式,在国内首次引入了地铁区间隧道通风模式的新理念.与传统的区间隧道通风模式相比,自然通风模式可以节省初期土建、设备投资和今后的运营费用.对自然通风的方案构思,通风井的设置等作详细介绍.通过现场的热烟试验,结果表明,前期方案论证采用的数值模拟计算较为合理,工程能满足今后的运营防灾要求.

Application of Natural Ventilation in Chengdu Metro

According to the programming,the ground conditions and the buried depth of the line,the southern running tunnel of Chengdu Metro Line 1 applied natural ventilation mode with openings on the top of tunnels. This was the first time that the new idea of this ventilation mode was introduced to metro running tunnels in China. Compared with the traditional running tunnel ventilation mode,the new natural ventilation mode helps to save cost of civil works,equipment investment and the cost for future operation. This...