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我国南方湿热多雨的气候条件使得城市地下设施易出现严重的结露现象,为减小维护费用,城市地下人行通道需尽可能地采取自然通风方式,通道的平面布置形式对其通风效果、避免结露问题十分重要。以武汉翠柳街地下人行通道为研究对象,对Z型城市地下人行通道进行现场试验测试,并辅以数值模拟,检验分析了通道的通风效果。结果表明,数值模拟结果与实测数据接近,Z型地下通道是通风换气较优的一种布置型式,自然通风效果较好,不易结露。
Hot and humid climatic conditions in southern China make urban underground facilities prone to serious condensation, in order to reduce maintenance costs, urban underground pedestrian passage should be as natural ventilation as possible, the layout of the channel of its ventilation effect, to avoid knot Dew problem is very important. Taking the underground pedestrian passage of Cui Liu Street in Wuhan as an example, the underground pedestrian passage in Z-type city was tested on site and supplemented with numerical simulation to test and analyze the ventilation effect of the passage. The results show that the numerical simulation results are close to the measured data. The Z-type underground passage is an arrangement type with better ventilation and natural ventilation, which is not easy to dew.