WEIYing-xia,KHUSoonthiam,LIUYang,et al.Impact of Topological Structure on Waterlogging Resilience of Storm Sewer Network[J].China Water & Wastewater,2024,40(11):129-136.
Impact of Topological Structure on Waterlogging Resilience of Storm Sewer Network
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第40卷
Number:
第11期
Page:
129-136
Column:
Date of publication:
2024-06-01
- Keywords:
- storm sewer network; topological structure; resilience; waterlogging; SWMM
- Abstract:
- The performance of urban storm sewer network system has been significantly impacted by the acceleration of urbanization and climate change, leading to frequent urban waterlogging. The topological structure is a fundamental characteristic of storm sewer network system, and any changes to it will inevitably impact the system’s performance. Resilience serves as an important indicator for evaluatingthe performance of the storm sewer network system. Currently, the impact of different topological structures on the system’s waterlogging resilience remains unclear. This paper quantitatively expressed the storm sewer network characteristics in Pingshan, Shenzhen by utilizing SWMM, graph theory and topological structure analysis methods, and determined the key node locations and system grid degree, so as to analyze the impact and further explore the methods for optimizing pipe network topology. Introducing the loop by adding new pipelines realized the upgrading of the pipe network, thereby improving the system’s resilience. The addition of pipelines at nodes with high comprehensive centrality (I3) maximized the resilience of the storm sewer network system. In class I3, the grid degree was increased from 10% to 20%, resulting in a 6.57% improvement in the system’s resilience.
Last Update:
2024-06-01