HANSong-lei,HUQi-ling,ZHANGNan,et al.Role of Green Sponge Facilities and Gray Storage Facilities in Upgrading Rainwater Drainage System[J].China Water & Wastewater,2024,40(1):126-130.
Role of Green Sponge Facilities and Gray Storage Facilities in Upgrading Rainwater Drainage System
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第40卷
Number:
第1期
Page:
126-130
Column:
Date of publication:
2024-01-01
- Keywords:
- source green sponge facility; gray storage facility; drainage standard; storage volume; runoff coefficient; upgrading and reconstruction
- Abstract:
- The Shanghai Urban Rainwater Drainage Plan (2020-2035) requires that the design return period of the drainage system in the main urban areas (including the central city) should be five years. Therefore, the effect of source green sponge facilities and grey storage facilities on the upgrading of rainwater drainage system in the downtown area of Shanghai was quantitatively analyzed based on the construction requirements of sponge city in the drainage system. The grey storage facilities effectively improved the drainage capacity of the system. By contrast, the source green sponge facilities with the same storage capacity demonstrated poor upgrading performance, and there was a certain relationship with their service area ratio. Further analysis showed that the contribution of green sponge facilities to the storage capacity of the drainage system could be quantified through investigating the influence of green sponge facilities on the runoff coefficient.
Last Update:
2024-01-01