Effect of different types of permeable brick on the stormwater runoff quantity control
ZHAO Yuanling1,, WANG Jianlong1,2,,, LI Luhan3, LI Tianning1, ZHOU Tianxin1 1.Key Laboratory of Urban Stormwater System and Water Environment, Ministry of Education, Beijing University of Civil Engineering and Architecture, Beijing 100044, China 2.Beijing Advanced Innovation Center for Future Urban Design, Beijing University of Civil Engineering and Architecture, Beijing 100044, China 3.Beijing Institute of Sustainable Urban Drainage System Construction and Risk Control Engineering Technology Research Center, Beijing University of Civil Engineering and Architecture, Beijing 100044, China
Abstract:Permeable pavement is one of the most widely used technologies in the construction of sponge cities, and plays an important role in promoting the penetration and reducing stormwater runoff. In this study, two different types of permeable bricks were selected as the research objects, and the artificial rainfall simulation method was used to investigate the stormwater runoff control effects of two different types of permeable bricks under different return periods of 1, 3, 5 and 10 years, including the quantity control, the peak reduction, the peak delay and so on. The results showed that the average control rates of event rainfall quantity for the structural permeable brick and ordinary permeable brick were all over 95% at the rainfall return period less than 10 years, respectively. The peak flow increased with the increase of the return period. The peak reduction effect of the structural permeable brick was better than that of the ordinary permeable brick, and the average peak reduction rate increased by 8.6%. The average outflow delay times of the structural permeable brick and ordinary permeable brick were 11.3 min and 13.8 min, and the average peak delay times were 6.3 min and 16.3 min, respectively. The control effects of the total quantity and peak flow for the structural permeable brick were better than those of the ordinary permeable brick. Therefore, the application of permeable pavement should combine the project design goals, local hydrological and geological conditions, and the structural permeable brick should be in priority. Key words:permeable pavement/ permeable brick/ stormwater runoff/ quantity control.
图1透水铺装实验流程图 Figure1.Flow chart of permeable pavement
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1.Key Laboratory of Urban Stormwater System and Water Environment, Ministry of Education, Beijing University of Civil Engineering and Architecture, Beijing 100044, China 2.Beijing Advanced Innovation Center for Future Urban Design, Beijing University of Civil Engineering and Architecture, Beijing 100044, China 3.Beijing Institute of Sustainable Urban Drainage System Construction and Risk Control Engineering Technology Research Center, Beijing University of Civil Engineering and Architecture, Beijing 100044, China Received Date: 2019-05-13 Accepted Date: 2019-09-19 Available Online: 2020-03-25 Keywords:permeable pavement/ permeable brick/ stormwater runoff/ quantity control Abstract:Permeable pavement is one of the most widely used technologies in the construction of sponge cities, and plays an important role in promoting the penetration and reducing stormwater runoff. In this study, two different types of permeable bricks were selected as the research objects, and the artificial rainfall simulation method was used to investigate the stormwater runoff control effects of two different types of permeable bricks under different return periods of 1, 3, 5 and 10 years, including the quantity control, the peak reduction, the peak delay and so on. The results showed that the average control rates of event rainfall quantity for the structural permeable brick and ordinary permeable brick were all over 95% at the rainfall return period less than 10 years, respectively. The peak flow increased with the increase of the return period. The peak reduction effect of the structural permeable brick was better than that of the ordinary permeable brick, and the average peak reduction rate increased by 8.6%. The average outflow delay times of the structural permeable brick and ordinary permeable brick were 11.3 min and 13.8 min, and the average peak delay times were 6.3 min and 16.3 min, respectively. The control effects of the total quantity and peak flow for the structural permeable brick were better than those of the ordinary permeable brick. Therefore, the application of permeable pavement should combine the project design goals, local hydrological and geological conditions, and the structural permeable brick should be in priority.