具有导渗导排管的透水混凝土铺装对径流污染物控制实验

Experiment on the Runoff Pollution Control of the Permeable Concrete Pavement with Built-In Perforated Pipes

具有导渗导排管的透水混凝土铺装是在传统透水混凝土铺装基础上的一种创新的透水铺装形式,属于"海绵城市"建设技术之一。实验利用人工模拟降雨装置,对具有导渗导排管的透水混凝土铺装的径流污染物控制作用进行了研究。结果表明,在一年降雨重现期下,降雨120 min,具有导渗导排管的透水混凝土铺装对雨水径流污染物SS、COD、TP、TN、Cu的去除率分别为98%、88%、84%、60%、88%。并且发现降雨重现期越小,具有导渗导排管的透水混凝土铺装对污染物的去除效果越好。说明了具有导渗导排管的透水混凝土铺装对降雨不但具有渗透、储存、排放作用,而且对雨水径流中常见的污染物有良好的去除效果。

The PCPBP（permeable concrete pavement with built-in perforated pipe） is a new kind of permeable pavement compared with the traditional permeable concrete pavement,which is an innovative technique for construction of the sponge city. Based on artificial rainfall simulator, the effect of that PCPBP reduced road runoff pollutants were studied. The results showed that in one year rainfall return period and rainfall 120 min, the removal rates of SS, COD, TP, TN, Cu by PCPBP were 98%, 88%, 84%,60%, 88% respectively. And it was found that the less the rainfall return period was, the larger the removal rate by PCPBP on pollutants was. It showed that PCPBP not only had the function of water penetration, storage, drainage, but also displayed good removal effect on the common pollutants in the runoff.