摘要
通过模拟渗透试验,当级配砂用作生物滞留池填料时其悬浮物去除率随净水浓度及填料厚度变化而变化,最大悬浮物去除率可达95%以上,且在填料表层布设覆盖层后,其持水性能提高,24 h蒸发量可降至3.28 mm/d,同时由于其原材料简单易得,因此级配砂可广泛用于城市建设中生物滞留池的填料。
Through the simulation of penetration test,when the graded sand used as a biological detention ponds packing the suspended solids removal rate changes over water concentration and thickness of packing,the largest suspended solids removal rate can reach more than 95%,and after layer arranged on the filler surface and its water-holding performance improvement,24 hours of evaporation can be dropped to 3.28 mm/d,at the same time,the materials graded sand can be widely used in city construction for its raw materials are easy to obtain,packing of biological detention ponds.
作者
龚金龙
樊绿叶
阙振业
姚成雷
GONG Jinlong;FAN Lvye;QUE Zhenye;YAO Chenglei(Kunshan Construction Project Quality Inspection Center,Kunshan Jiangsu 215300,China)
出处
《工程质量》
2019年第2期48-51,54,共5页
Construction Quality
基金
江苏省海绵城市建设材料与绩效检测工程技术研究中心(BM2017402)
关键词
级配砂
海绵城市
悬浮物
持水性
生物滞留池
graded sand
sponge city
suspended solids
water binding capacity
bioretention ponds
作者简介
龚金龙,男,工程师,研究方向为海绵城市相关技术。
