[1]迟文浩,王春虎,顾瑞环,等.基于在线水力模型的排水系统能力评估与风险分析[J].中国给水排水,2025,41(23):163-168.
　CHIWen-hao,WANGChun-hu,GURui-huan,et al.Capacity Assessment and Risk Analysis of Drainage System Based on Online Hydraulic Models[J].China Water & Wastewater,2025,41(23):163-168.
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基于在线水力模型的排水系统能力评估与风险分析

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第41卷 期数: 2025年第23期 页码: 163-168 栏目: 出版日期: 2025-12-01
Title:
Capacity Assessment and Risk Analysis of Drainage System Based on Online Hydraulic Models
作者:
迟文浩1,2,3， 王春虎1,2,3， 顾瑞环1,2,3， 周锡鑫1， 王晓霞4， 郭宁5， 蒋晨灿5
（1.青岛水务集团有限公司，山东 青岛 266071；2.青岛市水质保障与水资源开发利用重点实验室，山东 青岛 266071；3.青岛市水质安全与水资源高效利用工程研究中心，山东 青岛 266071；4.青岛大学 环境科学与工程学院，山东 青岛 266071；5.上海市水利工程设计研究院有限公司，上海 200030）
Author(s):
CHI　Wen-hao1，2，3， WANG　Chun-hu1，2，3， GU　Rui-huan1，2，3， ZHOU　Xi-xin1， WANG　Xiao-xia4， GUO　Ning5， JIANG　Chen-can5
（1. Qingdao Water Group Co. Ltd.， Qingdao 266071， China； 2. Qingdao Key Laboratory of Water Quality Protection and Water Resources Utilization， Qingdao 266071， China； 3. Qingdao Engineering Research Center of Water Quality Security and Water Resources Efficient Utilization， Qingdao 266071， China； 4. College of Environmental Science and Engineering， Qingdao University， Qingdao 266071， China； 5. Shanghai Water Conservancy Engineering Design and Research Institute Co. Ltd.， Shanghai 200030， China）
关键词:
排水管网;  水力模型;  雨水入侵
Keywords:
drainage pipe network;  hydraulic model;  rainwater intrusion
摘要:
以北方某沿海城市中心城区L流域排水系统为研究对象，利用SOBEK建模软件和Delft-FEWS平台，构建了排水管网在线水力模型，采用流域下游污水处理厂进水流量数据进行率定和验证，模型的纳什效率系数为0.225。基于排水管网水力模型设计开发了模型应用系统，对该排水系统能力和运行风险进行评估分析。不同情形下排水管网最大流速和最大充满度模拟结果表明，旱天条件下，部分源头支管和流域中上游干管（占比约为48.27%）最大流速<0.3 m/s，属于易淤积管段；流域中下游少部分源头支管和次级干管最大充满度超过75%，排水负荷较高，应进行清淤除砂。中小降雨条件下，L流域约69.60%的排水管网最大流速>0.6 m/s，流域中上游大量源头支管和次级干管最大充满度超过75%，结合雨水入侵分析可以推断，流域上游和下游沿河道部分区域排水管网存在一定程度的雨水入侵，应开展雨污分流排查治理工作。
Abstract:
An online hydraulic model of the drainage pipe network in the L basin, located in the central urban area of a northern coastal city, was developed using the SOBEK modeling software integrated with the Delft-FEWS platform. The model was calibrated and validated using influent flow data from the downstream wastewater treatment plant. The resulting Nash-Sutcliffe efficiency coefficient was 0.225.A model application system was designed and developed base-d on the hydraulic model of the drainage pipe network to assess and analy-ze the capacity and operational risks of the drainage system. The simulation results of the maximum flow velocity and maximum depth ratio in the drainage pipe network under various conditions indicated that 48.27% of the source branch pipes and trunk mains in the middle and upper reaches of L basin exhibited a maximum flow velocity below 0.3 m/s during dry weather, classifying these segments as susceptible to sedimentation. Additionally, the maximum depth ratio of a limited number of source branch pipes and secondary trunk mains in the middle and lower reaches of L basin exceeded 75%, indicating a relatively high drainage load.Therefore, pipeline dredging was recommended for these sections. Under moderate to low rainfall conditions, the maximum flow velocity in 69.60% of the drainage pipe network within the L basin exceeded 0.6 m/s, while the peak depth ratio in numerous source branch pipes and secondary trunk mains located in the mid-to-upper reaches of L basin surpassed 75%. Combined with an analysis of rainwater infiltration, these findings suggested the presence of significant rainwater intrusion into the drainage pipe network in the upstream area as well as the downstream area along the river. Therefore, systematic investigations and remedial measures for rainwater and sewage separation should be implemented.

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更新日期/Last Update: 2025-12-01