DOI: 10.1016/j.watres.2018.07.022
Scopus记录号: 2-s2.0-85053052078
论文题名: Extending the Rational Method for assessing and developing sustainable urban drainage systems
作者: Wang S. ; Wang H.
刊名: Water Research
ISSN: 431354
出版年: 2018
卷: 144 起始页码: 112
结束页码: 125
语种: 英语
英文关键词: Integrated design
; Peak flow rate
; Runoff control
; Storm sewer
; Stormwater
Scopus关键词: Catchments
; Flow rate
; Rain
; Storm sewers
; Storms
; Integrated designs
; Integrated response
; Peak flows
; Stormwaters
; Sustainable urban drainage
; Sustainable urban drainage systems
; Urban drainage designs
; Urban drainage infrastructure
; Runoff
; assessment method
; catchment
; design method
; infrastructure
; methodology
; peak flow
; rainfall-runoff modeling
; runoff
; stormwater
; sustainable development
; urban drainage
; water flow
英文摘要: Onsite runoff control is considered an important part of sustainable urban drainage schemes, but estimating the maximum runoff flow rate from a catchment with onsite runoff controls remains controversial. Runoff controls complicate the issue by dividing the catchment into several subcatchments that feed into individual runoff controls, which dynamically regulate the catchment imperviousness. Rational Method (RM) is the most-employed technique to determine maximum flow rates for designing urban drainage infrastructures, but it cannot handle such conditions. Nonetheless, it has advantages over alternative methods in terms of principle from the urban drainage design perspective. This work develops Rational Method Prime (RMP) that follows the basic principle of RM but instead recalculates catchment variables by taking into account runoff control effects and evaluates runoff control efficiencies by using two indices. RMP has three merits: (1) providing an integrated response of the whole catchment with runoff controls; (2) interpreting runoff control effects by plotting runoff flow rate-rainfall duration curves; (3) connecting the design of runoff controls and storm sewers that are based on different design principles and rainfall statistics. Case study results showed that runoff controls reduced peak flow rates by 5.83–91.6%, corresponding to reduction factors for return period of maximum flow rate from 0.04 to 0.76. Indeed, the original RM is based on four assumptions, which also cause its weakness, and there have been current methods to address 3 of them. RMP contributes to addressing the last assumption (i.e. constant catchment imperviousness), which finally allowing the evolution from RM 1.0 to 2.0. © 2018 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/112513
Appears in Collections: 气候减缓与适应
There are no files associated with this item.
作者单位: State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai, 200092, China; Key Laboratory of Yangtze River Water Environment (Ministry of Education), Tongji University, Shanghai, 200092, China
Recommended Citation:
Wang S.,Wang H.. Extending the Rational Method for assessing and developing sustainable urban drainage systems[J]. Water Research,2018-01-01,144