WANG Jun-jia,WANG Chuan-tao,ZENG Sheng.Assessment of Urban Drainage Capacity and Waterlogging Risk Based on Scenario Simulation[J].China Water & Wastewater,2020,36(17 17):115-120.
Assessment of Urban Drainage Capacity and Waterlogging Risk Based on Scenario Simulation
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第36卷
Number:
17 17
Page:
115-120
Column:
Date of publication:
2020-09-01
- Keywords:
- drainage capacity; waterlogging risk; scenario simulation method; analytic hierarchy process
- Abstract:
- Rain water pipes, river systems and surface runoff modules in different rainfall return periods were constructed by using scenario simulation method and ArcGIS and Mike tools, and urban waterlogging under the design rainfall condition was simulated through coupling analysis of the three by Mike Flood tool. Based on the simulation results, hydraulic load of drainage pipes was analyzed, and drainage capacity of urban rain water pipe was evaluated. Meanwhile, overlay analysis of ponding depth, time and regional importance was carried out by ArcGIS, and the study area was divided into high risk waterlogging area, middle risk waterlogging area and low risk waterlogging area by analytic hierarchy process (AHP). The works desired to provide scientific basis for urban drainage pipes renovation, waterlogging control, vertical planning and land use planning, and improved the level of urban waterlogging prevention and management.
Last Update:
2020-09-01