LIJiang-yun,ZHANGXuan-qing,HUZi-xin.Multi-objective Optimization Design and Operation of Urban Stormwater Deep Tunnel System[J].China Water & Wastewater,2024,40(9):129-136.
Multi-objective Optimization Design and Operation of Urban Stormwater Deep Tunnel System
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第40卷
Number:
第9期
Page:
129-136
Column:
Date of publication:
2024-05-01
- Keywords:
- deep tunnel drainage system; storm sewer network; multi-objective optimization; numerical simulation; genetic algorithm
- Abstract:
- It is essential to combine the deep tunnel system with the upper storm sewer system in order to fully utilize deep tunnels in collecting stormwater, reducing flooding, and controlling initial rainwater pollution. By Constructing the coupled model of deep tunnel system and upper storm sewer network, a multi?objective optimization model for stormwater deep tunnel system was developed based on NSGA-Ⅱ algorithm. With the total overflow volume, project investment and pumping cost as its objective functions, the gate controlling and tunnel diameter were served as the optimization variables. Additionally, the penalty function was correlated with the risk of waterlogging. The design and operation scheme of deep tunnel system was investigated under the conditions of meeting the hydrological and hydraulic, waterlogging risk and economic operation indexes. Taking a drainage area in Wuhan City as an example, a coupled model was established by using GIS-based fast modeling and parameter rating methods. The NSGA-Ⅱ algorithm was then programmed to connect SWMM for scheme simulation and optimization. By adjusting the deep tunnel diameter and inlet gate scheduling, the number of overflow nodes could be reduced and the detention time could be shortened with good economic benefit.
Last Update:
2024-05-01