SU Dong-xia,Lü Fang-fang,LIU Xue-feng,et al.Analysis on Implementation Effect of Low Impact Development Measures in a Region of Beijing[J].China Water & Wastewater,2021,37(3 3):110-115.
Analysis on Implementation Effect of Low Impact Development Measures in a Region of Beijing
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第37卷
Number:
3 3
Page:
110-115
Column:
Date of publication:
2021-02-01
- Keywords:
- drainage system; low impact development; rainwater discharge; InfoWorks ICM; sponge city; evaluation
- Abstract:
- A one-dimensional pipe network system model of a newly built regional rainwater system and surrounding municipal facilities in Beijing was established by using hydraulic evaluation software of InfoWorks ICM,and the discharge amount of rainwater and the operation of the receiving municipal pipeline before and after regional development were simulated.In order to make the drainage amount of rainwater after development meet the requirements and not affect the operation of the municipal pipe network, several low impact development schemes of rainwater drainage, regulation and storage were proposed based on the construction concept of sponge city, and feasible regional construction schemes were obtained through comprehensive analysis and comparison. Green lowimpact development measures like sunken lawn and permeable pavement could cut the peak flow.Gray storage tank could cut and delay the peak flow, and the off-line storage tank with the same volume had a better operational performance than that of the online storage tank. Therefore, the combination of gray and green measures based on the actual situation of the project was more conducive to the control of rainwater drainage. The study provides an evaluation method of regional rainwater discharge and an idea of implementing low impact development measures in regional development.
Last Update:
2021-02-01