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通过不同因素对透壁通风管路堤降温特性影响的室内试验研究,结果表明,透壁通风管的开孔率对路堤降温效果的影响比较明显,总体上,随着管壁开孔率的增大通风管路堤降温效果也随之增强,由于透壁通风管通风期间水分蒸发而产生蒸发耗热,从而使路堤土体温度降低,通风管材料对降温效果也有一定的影响,另外透壁通风管路堤仅负温通风时的降温效果整体上强于整个温度波动期间均通风时的降温效果。
The indoor experiment study on the influence of different factors on the cooling characteristics of the transmembrane ventilation pipe embankment shows that the influence of the perforated ratio of the transpiration ventilated pipe on the cooling effect of the embankment is obvious. Generally speaking, with the increase of the perforated wall ratio The cooling effect of the embankment of the air duct also increases. Since the moisture evaporates during transpiration, the temperature of the soil of the embankment decreases. The ventilation pipe material also has some influence on the cooling effect. In addition, Only the cooling effect when the negative temperature ventilation is better than the cooling effect when the temperature fluctuates during the whole temperature.