[1]刘立军,王添,侯精明,等.合流污水漫溢及其地表输移过程高分辨率模拟[J].中国给水排水,2024,40(19):127-136.
　LIULi-jun,WANGTian,HOUJing-ming,et al.High-resolution Simulation of Combined Sewer Overflow and Its Surface Transport Process[J].China Water & Wastewater,2024,40(19):127-136.
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合流污水漫溢及其地表输移过程高分辨率模拟

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第40卷 期数: 2024年第19期 页码: 127-136 栏目: 出版日期: 2024-10-01
Title:
High-resolution Simulation of Combined Sewer Overflow and Its Surface Transport Process
作者:
刘立军1， 王添1， 侯精明1， 栾广学1， 银雅伦1， 景静1， 范臣臣1， 刘园2
（1.西安理工大学 省部共建西北旱区生态水利国家重点实验室，陕西 西安 710048；2.中国电建集团西北勘测设计研究院有限公司，陕西 西安 710065）
Author(s):
LIU　Li-jun1， WANG　Tian1， HOU　Jing-ming1， LUAN　Guang-xue1， YIN　Ya-lun1， JING　Jing1， FAN　Chen-chen1， LIU　Yuan2
（1. State Key Laboratory of Eco-hydraulics in Northwest Arid Region of China， Xi’an University of Technology， Xi’an 710048， China； 2. PowerChina Northwest Engineering Corporation Limited， Xi’an 710065， China）
关键词:
合流制管网;  节点漫溢;  高分辨率模拟;  污染物输移;  GPU加速技术
Keywords:
combined sewer network;  node overflow;  high-resolution simulation;  pollutant transport;  GPU acceleration technology
摘要:
为深入了解降雨期间城市合流制管网与地表水量水质的互馈机理及输移规律，采用基于GAST与SWMM耦合的水动力水质高效高分辨率水环境数值模型，模拟分析了合流制节点在降雨期间的溢流水量及其漫溢和回流过程，以及溢流污染物TSS在地表的输移规律。结果表明，在3 600~21 600 s期间，3种重现期下（2、10、50年一遇）溢流污染物TSS>300 mg/L的比例总体呈下降趋势；道路径流与节点漫溢污染物TSS在地表的输移情况基本吻合，主要沿道路方向输移；随着降雨重现期的增大，地表溢流水量、面积以及溢流污染物TSS的浓度和负荷均呈先增加后减少的趋势。
Abstract:
To deeply comprehend the mutual feeding mechanism and transport principle of the urban combined sewer network and surface water quality during rainfall, an efficient and high-resolution water environment numerical model of hydrodynamic water quality based on the coupling of GAST and SWMM was employed to simulate and analyze the overflow volume, the overflow and backflow processes at the node of the combined sewer system, as well as the transport principle of the overflow pollutant TSS on the surface during rainfall. During the period ranging from 3 600 seconds to 21 600 seconds, the proportion of the overflow pollutant TSS exceeding 300 mg/L in the three recurrence intervals (2 years, 10 years, and 50 years) demonstrated a general downward trend. The road runoff was essentially in line with the surface transport of nodal pollutant TSS, mainly along the road direction. With the escalation of the rainfall recurrence interval, the surface overflow volume, area, as well as the concentration and load of the overflow pollutant TSS, initially increased and then decreased.
更新日期/Last Update: 2024-10-01