再生骨料在既有慢行道路的海绵化改造应用

Application of recycled aggregate in sponging reconstruction of existing slow road

把建筑垃圾破碎加工成再生骨料,填筑于慢行道路下方建成蓄水层。下雨时可将车行道、人行道等路面雨水收集储蓄其中,有效缓解城市洪涝灾害;收集的雨水净化后可用于植物灌溉、道路清洁;蓄水系统中的缓排系统,可将蓄水层排水细管以上的雨水在24 h内逐渐排放,以腾出空间迎接下一场暴雨来袭。这既可以拓展建筑垃圾资源化应用途径,又可以较好地缓解洪涝对城市排水管网的压力。

The construction waste is crushed and processed into recycled aggregate,which is filled under the sidewalks to build a water storage layer.In rainy weather,rainwater on carriageways and sidewalks can be collected and stored to effectively alleviate urban flood disasters;The collected rainwater can be used for plant irrigation and road cleaning after purification;The slow discharge system in the water storage system can gradually discharge half of the rainwater in the livestock layer within 24 hours to make room for the next rainstorm.It can expand the application of construction waste as a resource,besides,it can alleviate the pressure of floods on urban drainage networks better.