摘要
采取标准化后进行依平均距离的系统聚类分析法对44个高速公路路面雨水径流样本和降雨数据进行分析,结果表明:水中的有机物大多附着在悬浮颗粒之上,雨水径流中有机物含量和悬浮颗粒物含量有很大关联性;同时由于雨水径流中的金属离子主要由汽车尾气排放或轮胎与高速公路路面摩擦产生,故金属离子含量相互影响、关系密切。该结论有助于简化雨水径流初步检验,亦可便于对污染源头的搜寻。
The 44 samples of rainfall runoff on freeway pavement and rainfall data were analyzed by use of hierarchical cluster analysis method with average range method after standardization. The results shown that the COD and SS are very close with each other as most of the organics in water are attached on the surface of suspended substance, so the contents between organics and suspended substance have great relevance ; and the metallic ion are coming from exhaust emission and the friction between wheel and pavement, so that the concentration of metallic ion is somehow affect each other. These results may helps to simplifying the preliminary test of runoff and searching for the pollution source.
出处
《市政技术》
2013年第5期101-104,107,共5页
Journal of Municipal Technology
关键词
高速公路
雨水径流
系统聚类
freeway
rainwater runoff
hierarchical cluster
