Simulation study on effect of permeable pavement on reducing flood risk of urban runoff
|نوع نگارش مقاله||
scopus – master journals – JCR
۴٫۲۷۶ در سال ۲۰۲۰
۲۶ در سال ۲۰۲۱
۰٫۹۰۱ در سال ۲۰۲۰
|شاخص Quartile (چارک)||
Q1 در سال ۲۰۲۰
خرید محصول توسط کلیه کارت های شتاب امکان پذیر است و بلافاصله پس از خرید، لینک دانلود محصول در اختیار شما قرار خواهد گرفت و هر گونه فروش در سایت های دیگر قابل پیگیری خواهد بود.
فهرست مطالب مقاله:
Permeable pavement is part of the low impact development (LID) measurement, which can decrease urban surface runoff coefficient and flood peak flow. In this paper, a two-way, six- lane road in Nanjing was selected as the study area. Storm water management model (SWMM) was used to simulate the effect of different pavement structures (drainage sur- face, permeable pavement and permeable road) under different rainfall conditions on reducing surface runoff and controlling urban stormwater. The simulation results show that the drainage surface can reduce part of surface runoff, but it has no influence on the reduction and hysteresis of flood peak. The permeable pavement can reduce part of surface runoff and flood peak and can delay peak time. The permeable road has better effect on reducing runoff coefficient and flood peak, which can effectively reduce the pressure of urban drainage and reduce the risk of stormwater flood.
|بخشی از متن مقاله:|
According to China’s National Bureau of Statistics, the urbanization rate of China reached 57.35 percent in ۲۰۱۶٫ The underlying surface condition in urban area has changed a lot as the urbanization process is accelerating. Impervious surfaces such as concrete structures and hardened roads have increased considerably, which increases the surface runoff and the risk of urban floods. In addition, groundwater has not been effectively supplied due to the lack of rainwater drainage. Many cities are therefore faced with severe water shortage and drought. Developed countries such as United States, UK, Australia began to pay attention to such problems decades ago. They developed a series of techniques to control urban runoff and introduced a series of stormwater management plans and guidelines. These techniques and guidelines have been applied systematically. Since October 2014, China has proposed a ‘‘sponge city” strategy for the development of urbanization based on the summary of urban stormwater control concepts in foreign countries. A series of policy and technical guidelines were issued thereby.
The design of city road should adjust timely, as city road is a very important part of city development, such as creating ecological grass ditches, sunken lawns, rain gardens and permeable pavement. Zhang (2009) used SWMM to simulate the surface runoff of a residential area in Nanjing which was reconstructed with sunken lawn and permeable pavement. Jin et al. (2010) used SWMM to study the variation of the flood peak of the drainage pipeline in the area covered by permeable
brick and sunken lawn in Beijing. Zhenci and Guo (۲۰۱۷) studied the relationship between rainfall and runoff in the area under four different underlying conditions by distributed water stability model. Zhou (۲۰۱۷) established the runoff model and studied the ability of the sunken lawn to store rainfall, when it was under the conditions of different rainfall frequency and different proportion of green area. Cai et al. (2017) used SWMM to simulate the runoff and drainage condition under different rainfall conditions in Guangzhou. Palla used SWMM to simulate the hydrologic response of a small urban catch- ment which was covered by green roofs and permeable pavements. Guan et al. (۲۰۱۵) quantifies the effects of common stormwater management techniques on urban runoff generation, such as green roofs and permeable pavements. Tsihrintzis tested the applicability of SWMM in small subtropical urban catchments and provided modellers with a way to select appro- priate input parameters to be used in planning studies. Park used SWMM to simulate and investigate changes in runoff and peak runoff with LID plans. Do-Hyson (2005) used SWMM to investigate and analyze the runoff characteristics of non-point source pollutions in the municipal area of Jeonju. Temprano (2006) used SWMM to predict the pollution in rainy weather in a combined sewer system catchment in Santander, Spain.
Researchers at home and abroad have carried out studies on the effect of different kinds of LID measures on the control of surface runoff. Permeable pavement can be divided into drainage surface, permeable pavement and permeable road, based on the flow path of surface runoff. However, the influence of different kinds of permeable pavement structures on urban sur- face runoff has not been reported. In this paper, a two-way, six-lane road in Nanjing was selected as the study area, and SWMM was used to simulate the effect of different pavement structures under different rainfall conditions on reducing sur- face runoff and controlling urban stormwater. The objective of this study is to provide theoretical support for the ‘‘sponge city”.
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