透水路面蒸发降温效应研究综述

Review on the Evaporative Cooling Effect of Permeable Pavements

透水路面作为海绵城市的重要组成部分,除了可以缓解雨水径流,还可以利用水分进行蒸发降温,降低人工下垫面温度,进而缓解城市热岛。本文以透水路面为研究对象,首先,介绍了格栅透水路面、缝隙透水路面、渗透路面和保水路面四种透水路面的构造形式及蒸发降温特点;然后,综述了国内外关于透水路面蒸发降温机理及其对室外热环境影响的研究现状;最后,总结了透水路面现今研究中的问题,并对未来的研究趋势进行了展望。

As an important part of sponge city, permeable pavements can not only alleviate storm water runoff, but also mitigate the urban heat island by reducing artificial underlying surface temperature with evaporative cooling. In this paper, different kinds of permeable pavements were introduced, including permeable pavements, porous pavements, pervious pavements and water-retaining pavements. First, structures and evaporative cooling characteristics of the four pavements were studied. Then, research status of the four pavements on evaporative cooling mechanism, influencing factors and the impact on outdoor thermal environment under domestic and overseas were then reviewed. Finally, current research problems of permeable pavements were summarized and the future trends are prospected.