Analysis of Runoff Reduction Effect of Sponge Reconstruction in Old Urban Area Based on SWMM

DOI

10.2991/978-94-6463-218-7_22How to use a DOI?

Keywords

low impact development; sponge city; old urban area; numerical calculation

Abstract

In order to study the application and reconstruction effect of low impact development storm water management measures for old urban areas, Maiji District of Tianshui in Gansu Province as the typical sample, SWMM model was established to analyze the reduction effect of rainwater runoff after sponge reconstruction under different return periods. The results show that the total runoff control rate under each return period after reconstruction has significantly increased and is more than 50%. The decrease of runoff peak value and lag maximum value reached 59.06% and 12 min respectively. The maximum growth rate of infiltration is 48.83%, the growth rate of water storage gradually increased and finally stabilizes at about 73%. The reduction rate of drainage is all above 25% of the original, and the reduction rate of accumulation reaches 71.4% when the return period is 1 year. The research results can provide guidance for the reconstruction of the old urban areas with the low return period rainstorm.

Copyright

© 2023 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

Download article (PDF)

TY  - CONF
AU  - Jing Wu
AU  - Jianmin Ren
AU  - Min Tian
AU  - Yajun Bai
PY  - 2023
DA  - 2023/08/16
TI  - Analysis of Runoff Reduction Effect of Sponge Reconstruction in Old Urban Area Based on SWMM
BT  - Proceedings of the 2023 2nd International Conference on Urban Planning and Regional Economy (UPRE 2023)
PB  - Atlantis Press
SP  - 192
EP  - 201
SN  - 2352-5428
UR  - https://doi.org/10.2991/978-94-6463-218-7_22
DO  - 10.2991/978-94-6463-218-7_22
ID  - Wu2023
ER  -