摘要
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。
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 article gives a detailed introduction to the conception of the project, the setting of ventilation shafts, etc. Results of the hot smoke test at the site indicated that the numerical simulation for the ealier stage investigation was reasonable, and that the disaster prevention requirements could be met in future operation.
出处
《都市快轨交通》
2009年第3期28-31,共4页
Urban Rapid Rail Transit
基金
四川省重点建设项目(发改投资[2005]2440号)
关键词
成都地铁
自然通风
数值模拟
热烟试验
Chengdu metro
natural ventilation
numeraical simulation
hot smoke test
