文章基本信息

标题：Developing a Simple Approach for Estimating the Infiltration Capacity of Infiltration Gutters
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作者：Yao-Lung Tsai ; Yie-Ru Chiu ; Chao-Hsien Liaw 等
期刊名称：Journal of Asian Architecture and Building Engineering
印刷版ISSN：1346-7581
电子版ISSN：1347-2852
出版年度：2012
卷号：11
期号：1
页码：193-198
DOI：10.3130/jaabe.11.193
语种：English
出版社：日本建築学会、大韓建築学会、中国建築学会
摘要：Infiltration gutters are often applied to address the urban hydraulic impact resulting from rapid urbanization. Despite their applicability in many of Asia's fast growing middle-sized cities, their characteristics and performance, however, have not been properly understood for supporting sound design. To this end, this study assessed their performance and proposed a simple approach based on Darcy's law for estimating the infiltration capacity of an infiltration gutter. Permeable-brick infiltration gutters were constructed and tested on-site. Water infiltrated through three scenarios, i.e., the surfaces of two vertical sides (NFS-2S), the bottom (NFS-B), and three faces (NFS-3S) of the gutter, which were measured under steady state conditions. Test results indicate that specific infiltration area per unit length (Au.s), denoting the final infiltration rate divided by the saturated hydraulic conductivity of the soil, and the designed water depth (H) are linearly dependent on each other for NFS-2S and NFS-3S but not for NFS-B. Experimental results also indicate that when the bottom of the gutter is clogged, the gutter still retains about 93% of its infiltration capacity. Based on these on-site tests, this study thereby developed a simple tool using Darcy's law to design infiltration gutters.
关键词：urban hydraulic impact;infiltration gutter;permeable-brick