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道路热融雪过程降融同步特性研究

, PP. 22-26

Keywords: 道路工程,道路热融雪,试验研究,降融同步,传热

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Abstract:

?针对道路热力融雪问题,开展了3种地热结构道路融雪试验,研究降融同步主动融雪过程不同埋管节距的道路融雪特性和传热特征,分析路面温度、单位面积耗热量和单位流程温差等参数的变化规律。结果表明:采用密距型布置的埋管节距越小,可保持越大的路面无雪率,其融雪能力越强,单位面积耗热量也相应增加,但是单位流程温差增加是有限度的,并非持续增加;采取路面融雪提前预热,可以大大缩短积雪存留时间,有利于实现及时清雪。

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